Merge remote-tracking branch 'remotes/workadventure-main/develop' into load-page-api

2021-05-10 09:58:59 +02:00 · 2021-05-10 09:58:59 +02:00 · a5260c0831
commit a5260c0831
parent 99bd9d88d9 44eb25e9f6
96 changed files with 2400 additions and 1167 deletions
--- a/.github/workflows/build-and-deploy.yml
+++ b/.github/workflows/build-and-deploy.yml
@ -1,6 +1,8 @@
 name: Build, push and deploy Docker image

 on:
+  release:
+    types: [created]
  pull_request:
    types: [ labeled, synchronize ]

@ -12,7 +14,7 @@ env:
 jobs:

  build-front:
-    if: ${{ contains(github.event.pull_request.labels.*.name, 'deploy') }}
+    if: ${{ github.event.release || contains(github.event.pull_request.labels.*.name, 'deploy') }}
    runs-on: ubuntu-latest

    steps:
@ -32,11 +34,11 @@ jobs:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
          repository: thecodingmachine/workadventure-front
-          tags: ${{ env.GITHUB_HEAD_REF_SLUG }}
+          tags: ${{ github.event.pull_request && env.GITHUB_HEAD_REF_SLUG || env.GITHUB_REF_SLUG }}
          add_git_labels: true

  build-back:
-    if: ${{ contains(github.event.pull_request.labels.*.name, 'deploy') }}
+    if: ${{ github.event.release || contains(github.event.pull_request.labels.*.name, 'deploy') }}
    runs-on: ubuntu-latest

    steps:
@ -55,11 +57,11 @@ jobs:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
          repository: thecodingmachine/workadventure-back
-          tags: ${{ env.GITHUB_HEAD_REF_SLUG }}
+          tags: ${{ github.event.pull_request && env.GITHUB_HEAD_REF_SLUG || env.GITHUB_REF_SLUG }}
          add_git_labels: true

  build-pusher:
-    if: ${{ contains(github.event.pull_request.labels.*.name, 'deploy') }}
+    if: ${{ github.event.release || contains(github.event.pull_request.labels.*.name, 'deploy') }}
    runs-on: ubuntu-latest

    steps:
@ -78,11 +80,11 @@ jobs:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
          repository: thecodingmachine/workadventure-pusher
-          tags: ${{ env.GITHUB_HEAD_REF_SLUG }}
+          tags: ${{ github.event.pull_request && env.GITHUB_HEAD_REF_SLUG || env.GITHUB_REF_SLUG }}
          add_git_labels: true

  build-uploader:
-    if: ${{ contains(github.event.pull_request.labels.*.name, 'deploy') }}
+    if: ${{ github.event.release || contains(github.event.pull_request.labels.*.name, 'deploy') }}
    runs-on: ubuntu-latest

    steps:
@ -101,11 +103,11 @@ jobs:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
          repository: thecodingmachine/workadventure-uploader
-          tags: ${{ env.GITHUB_HEAD_REF_SLUG }}
+          tags: ${{ github.event.pull_request && env.GITHUB_HEAD_REF_SLUG || env.GITHUB_REF_SLUG }}
          add_git_labels: true

  build-maps:
-    if: ${{ contains(github.event.pull_request.labels.*.name, 'deploy') }}
+    if: ${{ github.event.release || contains(github.event.pull_request.labels.*.name, 'deploy') }}
    runs-on: ubuntu-latest

    steps:
@ -125,7 +127,7 @@ jobs:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
          repository: thecodingmachine/workadventure-maps
-          tags: ${{ env.GITHUB_HEAD_REF_SLUG }}
+          tags: ${{ github.event.pull_request && env.GITHUB_HEAD_REF_SLUG || env.GITHUB_REF_SLUG }}
          add_git_labels: true

  deeploy:
@ -136,6 +138,7 @@ jobs:
      - build-maps
      - build-uploader
    runs-on: ubuntu-latest
+    if: ${{ contains(github.event.pull_request.labels.*.name, 'deploy') }}

    steps:
      - name: Checkout
@ -153,12 +156,12 @@ jobs:
          JITSI_URL: ${{ secrets.JITSI_URL }}
          SECRET_JITSI_KEY: ${{ secrets.SECRET_JITSI_KEY }}
          TURN_STATIC_AUTH_SECRET: ${{ secrets.TURN_STATIC_AUTH_SECRET }}
+          DEPLOY_REF: ${{ env.GITHUB_HEAD_REF_SLUG }}
        with:
          namespace: workadventure-${{ env.GITHUB_HEAD_REF_SLUG }}

      - name: Add a comment in PR
        uses: unsplash/comment-on-pr@v1.2.0
-        if: ${{ env.GITHUB_HEAD_REF_SLUG != 'master' }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
--- a/.github/workflows/cleanup.yml
+++ b/.github/workflows/cleanup.yml
@ -18,6 +18,7 @@ jobs:
      - uses: rlespinasse/github-slug-action@3.1.0

      - name: Cleanup
+        continue-on-error: true
        uses: thecodingmachine/deeployer-cleanup-action@master
        env:
          KUBE_CONFIG_FILE: ${{ secrets.KUBE_CONFIG_FILE }}
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -1,4 +1,18 @@
-## Version 1.3.0 - in dev
+## Version 1.3.9 - in dev
+
+### Updates
+
+- Mobile support has been improved
+    - WorkAdventure automatically sets the zoom level based on the viewport size to ensure a sensible size of the map is visible, whatever the viewport used
+    - Mouse wheel support to zoom in / out
+    - Pinch support on mobile to zoom in / out
+    - Improved virtual joystick size (adapts to the zoom level)
+
+### Bug Fixes
+
+- Pinch gesture does no longer move the character
+
+## Version 1.3.0

 ### New Features

--- a/deeployer.libsonnet
+++ b/deeployer.libsonnet
@ -1,6 +1,6 @@
 {
  local env = std.extVar("env"),
-  local namespace = env.GITHUB_HEAD_REF_SLUG,
+  local namespace = env.DEPLOY_REF,
  local tag = namespace,
  local url = if namespace == "master" then "workadventu.re" else namespace+".test.workadventu.re",
  // develop branch does not use admin because of issue with SSL certificate of admin as of now.
--- a/docker-compose.single-domain.yaml
+++ b/docker-compose.single-domain.yaml
@ -153,23 +153,6 @@ services:
      - "traefik.http.routers.uploader-ssl.tls=true"
      - "traefik.http.routers.uploader-ssl.service=uploader"

-  website:
-    image: thecodingmachine/nodejs:12-apache
-    environment:
-      STARTUP_COMMAND_1: npm install
-      STARTUP_COMMAND_2: npm run watch &
-      APACHE_DOCUMENT_ROOT: dist/
-    volumes:
-      - ./website:/var/www/html
-    labels:
-      - "traefik.http.routers.website.rule=Host(`workadventure.localhost`)"
-      - "traefik.http.routers.website.entryPoints=web"
-      - "traefik.http.services.website.loadbalancer.server.port=80"
-      - "traefik.http.routers.website-ssl.rule=Host(`workadventure.localhost`)"
-      - "traefik.http.routers.website-ssl.entryPoints=websecure"
-      - "traefik.http.routers.website-ssl.tls=true"
-      - "traefik.http.routers.website-ssl.service=website"
-
  messages:
    #image: thecodingmachine/nodejs:14
    image: thecodingmachine/workadventure-back-base:latest
--- a/front/dist/index.tmpl.html
+++ b/front/dist/index.tmpl.html
@ -48,20 +48,27 @@
                    <div id="activeCam" class="activeCam">
                        <div id="div-myCamVideo" class="video-container">
                            <video id="myCamVideo" autoplay muted></video>
+                            <div id="mySoundMeter" class="sound-progress">
+                                <span></span>
+                                <span></span>
+                                <span></span>
+                                <span></span>
+                                <span></span>
+                            </div>
                        </div>
                    </div>
                    <div class="btn-cam-action">
-                        <div id="btn-micro" class="btn-micro">
-                            <img id="microphone" src="resources/logos/microphone.svg">
-                            <img id="microphone-close" src="resources/logos/microphone-close.svg">
+                        <div id="btn-monitor" class="btn-monitor">
+                            <img id="monitor" src="resources/logos/monitor.svg">
+                            <img id="monitor-close" src="resources/logos/monitor-close.svg">
                        </div>
                        <div id="btn-video" class="btn-video">
                            <img id="cinema" src="resources/logos/cinema.svg">
                            <img id="cinema-close" src="resources/logos/cinema-close.svg">
                        </div>
-                        <div id="btn-monitor" class="btn-monitor">
-                            <img id="monitor" src="resources/logos/monitor.svg">
-                            <img id="monitor-close" src="resources/logos/monitor-close.svg">
+                        <div id="btn-micro" class="btn-micro">
+                            <img id="microphone" src="resources/logos/microphone.svg">
+                            <img id="microphone-close" src="resources/logos/microphone-close.svg">
                        </div>
                    </div>

--- a/front/dist/resources/html/EnableCameraScene.html
+++ b/front/dist/resources/html/EnableCameraScene.html
@ -48,7 +48,7 @@
        text-align: center;
        margin: 0;
        position: absolute;
-        top: 44vh;
+        top: 40vh;
        width: 100%;
    }
    #enableCameraScene button {
--- a/front/dist/resources/html/helpCameraSettings.html
+++ b/front/dist/resources/html/helpCameraSettings.html
@ -60,6 +60,9 @@
        font-size: 8px;
        margin: 0px 20px;
    }
+    #helpCameraSettings section p a{
+        font-size: 8px;
+    }
    #helpCameraSettings section p.err{
        color: #ff0000;
    }
@ -95,6 +98,10 @@
        <p>If you prefer to continue without allowing camera and microphone access, click on Continue</p>
        <p id='browserHelpSetting'></p>
    </section>
+    <!--<section class="text-center">
+        <p>If your problem persist, please contact us: <a id="mailto" href="mailto:workadventure@thecodingmachine.com?subject=Support camera and microphone settings" target="_blank"> workadventure@thecodingmachine.com</a>.</p>
+    </section>-->
+    </section>
    <section class="action">
        <a href="#" id="helpCameraSettingsFormRefresh">Refresh</a>
        <button type="submit" id="helpCameraSettingsFormContinue">Continue</button>
--- a/front/dist/resources/style/mobile-style.scss
+++ b/front/dist/resources/style/mobile-style.scss
@ -23,27 +23,17 @@
  }

  .btn-cam-action {
+    min-width: 150px;
+
    &:hover{
      transform: translateY(20px);
    }
    div {
+      margin: 0 1%;
      &:hover {
        background-color: #666;
      }
-
-      bottom: 30px;
-
-      &.btn-micro {
-        right: 0;
-      }
-
-      &.btn-monitor {
-        right: 130px;
-      }
-
-      &.btn-video {
-        right: 65px;
-      }
+      margin-bottom: 30px;
    }
  }

--- a/front/dist/resources/style/style.css
+++ b/front/dist/resources/style/style.css
@ -98,7 +98,7 @@ body .message-info.warning{
 }

 .video-container button.report:hover {
-    width: 150px;
+    width: 160px;
 }

 .video-container button.report img{
@ -126,6 +126,7 @@ body .message-info.warning{

 .video-container video{
    height: 100%;
+    cursor: url('/resources/logos/cursor_pointer.png'), pointer;
 }

 .video-container video:focus{
@ -141,7 +142,7 @@ body .message-info.warning{
    right: 15px;
    bottom: 30px;
    border-radius: 15px 15px 15px 15px;
-    max-height: 200px;
+    max-height: 20%;
 }

 video#myCamVideo{
@ -153,19 +154,60 @@ video#myCamVideo{
    /*height: 113px;*/
 }

+.sound-progress{
+    display: none;
+    position: absolute;
+    right: 14px;
+    top: calc(50% - 5px);
+}
+.sound-progress.active{
+    display: table-column;
+}
+.sound-progress span{
+    position: absolute;
+    color: black;
+    background-color: #00000020;
+    width: 5px;
+    height: 5px;
+    border-radius: 50%;
+}
+.sound-progress span.active{
+    background-color: #00c3ff66
+}
+.sound-progress span:nth-child(1){
+    top: calc(50% + 20px);
+}
+.sound-progress span:nth-child(2){
+    top: calc(50% + 10px);
+}
+.sound-progress span:nth-child(3){
+    top: calc(50% - 0px);
+}
+.sound-progress span:nth-child(4){
+    top: calc(50% - 10px);
+}
+.sound-progress span:nth-child(5){
+    top: calc(50% - 20px);
+}

 .btn-cam-action {
    pointer-events: all;
    position: absolute;
-    bottom: 0px;
-    right: 0px;
-    width: 450px;
-    height: 150px;
+    display: inline-flex;
+    bottom: 10px;
+    right: 15px;
+    width: 15vw;
+    height: 40px;
+    text-align: center;
+    align-content: center;
+    align-items: center;
+    justify-content: center;
+    justify-items: center;
 }
 /*btn animation*/
 .btn-cam-action div{
    cursor: url('/resources/logos/cursor_pointer.png'), pointer;
-    position: absolute;
+    /*position: absolute;*/
    border: solid 0px black;
    width: 44px;
    height: 44px;
@ -174,7 +216,8 @@ video#myCamVideo{
    border-radius: 48px;
    transform: translateY(20px);
    transition-timing-function: ease-in-out;
-    bottom: 20px;
+    margin-bottom: 20px;
+    margin: 0 4%;
 }
 .btn-cam-action div.disabled {
    background: #d75555;
@ -193,17 +236,17 @@ video#myCamVideo{
 .btn-micro{
    pointer-events: auto;
    transition: all .3s;
-    right: 44px;
+    /*right: 44px;*/
 }
 .btn-video{
    pointer-events: auto;
    transition: all .25s;
-    right: 134px;
+    /*right: 134px;*/
 }
 .btn-monitor{
    pointer-events: auto;
    transition: all .2s;
-    right: 224px;
+    /*right: 224px;*/
 }
 .btn-copy{
    pointer-events: auto;
@ -338,7 +381,7 @@ body {
        max-height: 25%;
    }

-    
+
 }

 #game {
@ -501,12 +544,20 @@ input[type=range]:focus::-ms-fill-upper {
    /* TODO: DO WE NEED FLEX HERE???? WE WANT A SIDEBAR OF EXACTLY 25% (note: flex useful for direction!!!) */
 }

+.game-overlay + div {
+    pointer-events: none;
+}
+
+.game-overlay + div > div {
+    pointer-events: auto;
+}
+
 .game-overlay.active {
    display: flex;
 }

 .game-overlay video {
-    width: 100%
+    width: 100%;
 }

 .main-section {
@ -522,6 +573,7 @@ input[type=range]:focus::-ms-fill-upper {
    flex-basis: 96%;
    transition: margin-left 0.2s, margin-right 0.2s, margin-bottom 0.2s, margin-top 0.2s, flex-basis 0.2s;
    cursor: url('/resources/logos/cursor_pointer.png'), pointer;
+    pointer-events: auto;
    /*flex-shrink: 2;*/
 }

@ -533,7 +585,6 @@ input[type=range]:focus::-ms-fill-upper {
 .sidebar {
    flex: 0 0 25%;
    display: flex;
-    pointer-events: none;
 }

 .sidebar > div {
@ -541,12 +592,17 @@ input[type=range]:focus::-ms-fill-upper {
    transition: margin-left 0.2s, margin-right 0.2s, margin-bottom 0.2s, margin-top 0.2s, max-height 0.2s, max-width 0.2s;
    cursor: url('/resources/logos/cursor_pointer.png'), pointer;
    border-radius: 15px 15px 15px 15px;
+    pointer-events: auto;
 }

 .sidebar > div:hover {
    margin: 0%;
 }

+.sidebar > div video {
+    cursor: url('/resources/logos/cursor_pointer.png'), pointer;
+}
+
 /* Let's make sure videos are vertically centered if they need to be cropped */
 .media-container {
    display: flex;
@ -1111,17 +1167,34 @@ div.action{
    animation-iteration-count: infinite;
    animation-timing-function: ease-in-out;
 }
+div.action.info,
+div.action.warning,
+div.action.danger{
+    transition: all 1s ease;
+    animation: mymove 1s;
+    animation-iteration-count: infinite;
+    animation-timing-function: ease-in-out;
+}
 div.action p.action-body{
+    cursor: url('/resources/logos/cursor_pointer.png'), pointer;
    padding: 10px;
    background-color: #2d2d2dba;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
-    max-width: 250px;
-    margin-left: calc(50% - 125px);
+    max-width: 350px;
+    margin-left: calc(50% - 175px);
    border-radius: 15px;
 }
+div.action.warning p.action-body{
+    background-color: #ff9800eb;
+    color: #000;
+}
+div.action.danger p.action-body{
+    background-color: #da0000e3;
+    color: #000;
+}
 .popUpElement{
    font-family: 'Press Start 2P';
    text-align: left;
--- a/front/dist/static/images/favicons/manifest.json
+++ b/front/dist/static/images/favicons/manifest.json
@ -1,41 +1,149 @@
 {
- "name": "App",
- "icons": [
-  {
-   "src": "\/android-icon-36x36.png",
-   "sizes": "36x36",
-   "type": "image\/png",
-   "density": "0.75"
-  },
-  {
-   "src": "\/android-icon-48x48.png",
-   "sizes": "48x48",
-   "type": "image\/png",
-   "density": "1.0"
-  },
-  {
-   "src": "\/android-icon-72x72.png",
-   "sizes": "72x72",
-   "type": "image\/png",
-   "density": "1.5"
-  },
-  {
-   "src": "\/android-icon-96x96.png",
-   "sizes": "96x96",
-   "type": "image\/png",
-   "density": "2.0"
-  },
-  {
-   "src": "\/android-icon-144x144.png",
-   "sizes": "144x144",
-   "type": "image\/png",
-   "density": "3.0"
-  },
-  {
-   "src": "\/android-icon-192x192.png",
-   "sizes": "192x192",
-   "type": "image\/png",
-   "density": "4.0"
-  }
- ]
+    "short_name": "WA",
+    "name": "WorkAdventure",
+    "icons": [
+        {
+            "src": "/static/images/favicons/apple-icon-57x57.png",
+            "sizes": "57x57",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/apple-icon-60x60.png",
+            "sizes": "60x60",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/apple-icon-72x72.png",
+            "sizes": "72x72",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/apple-icon-76x76.png",
+            "sizes": "76x76",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/apple-icon-114x114.png",
+            "sizes": "114x114",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/apple-icon-120x120.png",
+            "sizes": "120x120",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/apple-icon-144x144.png",
+            "sizes": "144x144",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/apple-icon-152x152.png",
+            "sizes": "152x152",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/apple-icon-180x180.png",
+            "sizes": "180x180",
+            "type": "image\/png"
+        },
+        {
+            "src": "/static/images/favicons/android-icon-36x36.png",
+            "sizes": "36x36",
+            "type": "image\/png",
+            "density": "0.75"
+        },
+        {
+            "src": "/static/images/favicons/android-icon-48x48.png",
+            "sizes": "48x48",
+            "type": "image\/png",
+            "density": "1.0"
+        },
+        {
+            "src": "/static/images/favicons/android-icon-72x72.png",
+            "sizes": "72x72",
+            "type": "image\/png",
+            "density": "1.5"
+        },
+
+        {
+            "src": "/static/images/favicons/favicon-16x16.png",
+            "sizes": "16x16",
+            "type": "image\/png",
+            "density": "1"
+        },
+        {
+            "src": "/static/images/favicons/favicon-32x32.png",
+            "sizes": "32x32",
+            "type": "image\/png",
+            "density": "1.5"
+        },
+        {
+            "src": "/static/images/favicons/favicon-96x96.png",
+            "sizes": "96x96",
+            "type": "image\/png",
+            "density": "2.0"
+        },
+
+        {
+            "src": "/static/images/favicons/android-icon-36x36.png",
+            "sizes": "36x36",
+            "type": "image\/png",
+            "density": "1"
+        },
+        {
+            "src": "/static/images/favicons/android-icon-48x48.png",
+            "sizes": "48x48",
+            "type": "image\/png",
+            "density": "1"
+        },
+        {
+            "src": "/static/images/favicons/android-icon-72x72.png",
+            "sizes": "72x72",
+            "type": "image\/png",
+            "density": "1.5"
+        },
+        {
+            "src": "/static/images/favicons/android-icon-96x96.png",
+            "sizes": "96x96",
+            "type": "image\/png",
+            "density": "2.0"
+        },
+        {
+            "src": "/static/images/favicons/android-icon-144x144.png",
+            "sizes": "144x144",
+            "type": "image\/png",
+            "density": "3.0"
+        },
+        {
+            "src": "/static/images/favicons/android-icon-192x192.png",
+            "sizes": "192x192",
+            "type": "image\/png",
+            "density": "4.0"
+        }
+    ],
+    "start_url": "/",
+    "background_color": "#000000",
+    "display_override": ["window-control-overlay", "minimal-ui"],
+    "display": "standalone",
+    "scope": "/",
+    "theme_color": "#000000",
+    "shortcuts": [
+      {
+        "name": "WorkAdventures",
+        "short_name": "WA",
+        "description": "WorkAdventure application",
+        "url": "/",
+        "icons": [{ "src": "/static/images/favicons/android-icon-192x192.png", "sizes": "192x192" }]
+      }
+    ],
+    "description": "WorkAdventure application",
+    "screenshots": [],
+    "related_applications": [{
+        "platform": "web",
+        "url": "https://workadventu.re"
+      }, {
+        "platform": "play",
+        "url": "https://play.workadventu.re"
+    }]
 }
--- a/front/package.json
+++ b/front/package.json
@ -30,7 +30,7 @@
    "axios": "^0.21.1",
    "generic-type-guard": "^3.2.0",
    "google-protobuf": "^3.13.0",
-    "phaser": "3.24.1",
+    "phaser": "^3.54.0",
    "phaser3-rex-plugins": "^1.1.42",
    "queue-typescript": "^1.0.1",
    "quill": "1.3.6",
--- a/front/src/Api/Events/IframeEvent.ts
+++ b/front/src/Api/Events/IframeEvent.ts
@ -1,7 +1,57 @@
-export interface IframeEvent {
-    type: string;
-    data: unknown;
+
+
+import { ButtonClickedEvent } from './ButtonClickedEvent';
+import { ChatEvent } from './ChatEvent';
+import { ClosePopupEvent } from './ClosePopupEvent';
+import { EnterLeaveEvent } from './EnterLeaveEvent';
+import { GoToPageEvent } from './GoToPageEvent';
+import { LoadPageEvent } from './LoadPageEvent';
+import { OpenCoWebSiteEvent } from './OpenCoWebSiteEvent';
+import { OpenPopupEvent } from './OpenPopupEvent';
+import { OpenTabEvent } from './OpenTabEvent';
+import { UserInputChatEvent } from './UserInputChatEvent';
+
+
+export interface TypedMessageEvent<T> extends MessageEvent {
+    data: T
+}
+
+export type IframeEventMap = {
+    //getState: GameStateEvent,
+    // updateTile: UpdateTileEvent
+    loadPage: LoadPageEvent
+    chat: ChatEvent,
+    openPopup: OpenPopupEvent
+    closePopup: ClosePopupEvent
+    openTab: OpenTabEvent
+    goToPage: GoToPageEvent
+    openCoWebSite: OpenCoWebSiteEvent
+    closeCoWebSite: null
+    disablePlayerControl: null
+    restorePlayerControl: null
+    displayBubble: null
+    removeBubble: null
+}
+export interface IframeEvent<T extends keyof IframeEventMap> {
+    type: T;
+    data: IframeEventMap[T];
+}
+
+
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export const isIframeEventWrapper = (event: any): event is IframeEvent<keyof IframeEventMap> => typeof event.type === 'string';
+
+export interface IframeResponseEventMap {
+    userInputChat: UserInputChatEvent
+    enterEvent: EnterLeaveEvent
+    leaveEvent: EnterLeaveEvent
+    buttonClickedEvent: ButtonClickedEvent
+    // gameState: GameStateEvent
+}
+export interface IframeResponseEvent<T extends keyof IframeResponseEventMap> {
+    type: T;
+    data: IframeResponseEventMap[T];
 }

 // eslint-disable-next-line @typescript-eslint/no-explicit-any
-export const isIframeEventWrapper = (event: any): event is IframeEvent => typeof event.type === 'string';
+export const isIframeResponseEventWrapper = (event: { type?: string }): event is IframeResponseEvent<keyof IframeResponseEventMap> => typeof event.type === 'string';
--- a/front/src/Api/IframeListener.ts
+++ b/front/src/Api/IframeListener.ts
@ -1,17 +1,17 @@
-import {Subject} from "rxjs";
-import {ChatEvent, isChatEvent} from "./Events/ChatEvent";
-import {IframeEvent, isIframeEventWrapper} from "./Events/IframeEvent";
-import {UserInputChatEvent} from "./Events/UserInputChatEvent";
+import { Subject } from "rxjs";
+import { ChatEvent, isChatEvent } from "./Events/ChatEvent";
 import * as crypto from "crypto";
-import {HtmlUtils} from "../WebRtc/HtmlUtils";
-import {EnterLeaveEvent} from "./Events/EnterLeaveEvent";
-import {isOpenPopupEvent, OpenPopupEvent} from "./Events/OpenPopupEvent";
-import {isOpenTabEvent, OpenTabEvent} from "./Events/OpenTabEvent";
-import {ButtonClickedEvent} from "./Events/ButtonClickedEvent";
-import {ClosePopupEvent, isClosePopupEvent} from "./Events/ClosePopupEvent";
-import {scriptUtils} from "./ScriptUtils";
-import {GoToPageEvent, isGoToPageEvent} from "./Events/GoToPageEvent";
-import {isOpenCoWebsite, OpenCoWebSiteEvent} from "./Events/OpenCoWebSiteEvent";
+import { HtmlUtils } from "../WebRtc/HtmlUtils";
+import { EnterLeaveEvent } from "./Events/EnterLeaveEvent";
+import { isOpenPopupEvent, OpenPopupEvent } from "./Events/OpenPopupEvent";
+import { isOpenTabEvent, OpenTabEvent } from "./Events/OpenTabEvent";
+import { ButtonClickedEvent } from "./Events/ButtonClickedEvent";
+import { ClosePopupEvent, isClosePopupEvent } from "./Events/ClosePopupEvent";
+import { scriptUtils } from "./ScriptUtils";
+import { GoToPageEvent, isGoToPageEvent } from "./Events/GoToPageEvent";
+import { isOpenCoWebsite, OpenCoWebSiteEvent } from "./Events/OpenCoWebSiteEvent";
+import { IframeEventMap, IframeEvent, IframeResponseEvent, IframeResponseEventMap, isIframeEventWrapper, TypedMessageEvent } from "./Events/IframeEvent";
+import { UserInputChatEvent } from "./Events/UserInputChatEvent";
 import { isLoadPageEvent } from './Events/LoadPageEvent';


@ -61,18 +61,18 @@ class IframeListener {
    private readonly scripts = new Map<string, HTMLIFrameElement>();

    init() {
-        window.addEventListener("message", (message) => {
+        window.addEventListener("message", (message: TypedMessageEvent<IframeEvent<keyof IframeEventMap>>) => {
            // Do we trust the sender of this message?
            // Let's only accept messages from the iframe that are allowed.
            // Note: maybe we could restrict on the domain too for additional security (in case the iframe goes to another domain).
-            let found = false;
+            let foundSrc: string | null = null;
            for (const iframe of this.iframes) {
                if (iframe.contentWindow === message.source) {
-                    found = true;
+                    foundSrc = iframe.src;
                    break;
                }
            }
-            if (!found) {
+            if (!foundSrc) {
                return;
            }

@ -85,28 +85,32 @@ class IframeListener {
                } else if (payload.type === 'closePopup' && isClosePopupEvent(payload.data)) {
                    this._closePopupStream.next(payload.data);
                }
-                else if(payload.type === 'openTab' && isOpenTabEvent(payload.data)) {
+                else if (payload.type === 'openTab' && isOpenTabEvent(payload.data)) {
                    scriptUtils.openTab(payload.data.url);
                }
-                else if(payload.type === 'goToPage' && isGoToPageEvent(payload.data)) {
+                else if (payload.type === 'goToPage' && isGoToPageEvent(payload.data)) {
                    scriptUtils.goToPage(payload.data.url);
                }
-                else if(payload.type === 'openCoWebSite' && isOpenCoWebsite(payload.data)) {
-                    scriptUtils.openCoWebsite(payload.data.url);
+                else if (payload.type === 'openCoWebSite' && isOpenCoWebsite(payload.data)) {
+                    const scriptUrl = [...this.scripts.keys()].find(key => {
+                        return this.scripts.get(key)?.contentWindow == message.source
+                    })
+
+                    scriptUtils.openCoWebsite(payload.data.url, scriptUrl || foundSrc);
                }
-                else if(payload.type === 'closeCoWebSite') {
+                else if (payload.type === 'closeCoWebSite') {
                    scriptUtils.closeCoWebSite();
                }
-                else if (payload.type === 'disablePlayerControl'){
+                else if (payload.type === 'disablePlayerControl') {
                    this._disablePlayerControlStream.next();
                }
-                else if (payload.type === 'restorePlayerControl'){
+                else if (payload.type === 'restorePlayerControl') {
                    this._enablePlayerControlStream.next();
                }
-                else if (payload.type === 'displayBubble'){
+                else if (payload.type === 'displayBubble') {
                    this._displayBubbleStream.next();
                }
-                else if (payload.type === 'removeBubble'){
+                else if (payload.type === 'removeBubble') {
                    this._removeBubbleStream.next();
                }else if (payload.type === 'loadPage' && isLoadPageEvent(payload.data)){
                    this._loadPageStream.next(payload.data.url);
@ -137,7 +141,7 @@ class IframeListener {
            const iframe = document.createElement('iframe');
            iframe.id = this.getIFrameId(scriptUrl);
            iframe.style.display = 'none';
-            iframe.src = '/iframe.html?script='+encodeURIComponent(scriptUrl);
+            iframe.src = '/iframe.html?script=' + encodeURIComponent(scriptUrl);

            // We are putting a sandbox on this script because it will run in the same domain as the main website.
            iframe.sandbox.add('allow-scripts');
@ -161,8 +165,8 @@ class IframeListener {
                '\n' +
                '<html lang="en">\n' +
                '<head>\n' +
-                '<script src="'+window.location.protocol+'//'+window.location.host+'/iframe_api.js" ></script>\n' +
-                '<script src="'+scriptUrl+'" ></script>\n' +
+                '<script src="' + window.location.protocol + '//' + window.location.host + '/iframe_api.js" ></script>\n' +
+                '<script src="' + scriptUrl + '" ></script>\n' +
                '</head>\n' +
                '</html>\n';

@ -179,14 +183,14 @@ class IframeListener {
    }

    private getIFrameId(scriptUrl: string): string {
-        return 'script'+crypto.createHash('md5').update(scriptUrl).digest("hex");
+        return 'script' + crypto.createHash('md5').update(scriptUrl).digest("hex");
    }

    unregisterScript(scriptUrl: string): void {
        const iFrameId = this.getIFrameId(scriptUrl);
        const iframe = HtmlUtils.getElementByIdOrFail<HTMLIFrameElement>(iFrameId);
        if (!iframe) {
-            throw new Error('Unknown iframe for script "'+scriptUrl+'"');
+            throw new Error('Unknown iframe for script "' + scriptUrl + '"');
        }
        this.unregisterIframe(iframe);
        iframe.remove();
@ -234,7 +238,7 @@ class IframeListener {
    /**
     * Sends the message... to all allowed iframes.
     */
-    private postMessage(message: IframeEvent) {
+    private postMessage(message: IframeResponseEvent<keyof IframeResponseEventMap>) {
        for (const iframe of this.iframes) {
            iframe.contentWindow?.postMessage(message, '*');
        }
--- a/front/src/Api/ScriptUtils.ts
+++ b/front/src/Api/ScriptUtils.ts
@ -11,8 +11,8 @@ class ScriptUtils {

    }

-    public openCoWebsite(url : string){
-            coWebsiteManager.loadCoWebsite(url,url);
+    public openCoWebsite(url: string, base: string) {
+           coWebsiteManager.loadCoWebsite(url, base);
    }

    public closeCoWebSite(){
--- a/front/src/Connexion/LocalUser.ts
+++ b/front/src/Connexion/LocalUser.ts
@ -10,7 +10,7 @@ export interface CharacterTexture {
 export const maxUserNameLength: number = MAX_USERNAME_LENGTH;

 export function isUserNameValid(value: string): boolean {
-    const regexp = new RegExp('^[A-Za-z]{1,'+maxUserNameLength+'}$');
+    const regexp = new RegExp('^[A-Za-z0-9]{1,'+maxUserNameLength+'}$');
    return regexp.test(value);
 }

--- a/front/src/Connexion/RoomConnection.ts
+++ b/front/src/Connexion/RoomConnection.ts
@ -27,7 +27,8 @@ import {
    SendJitsiJwtMessage,
    CharacterLayerMessage,
    PingMessage,
-    SendUserMessage, BanUserMessage
+    SendUserMessage, 
+    BanUserMessage
 } from "../Messages/generated/messages_pb"

 import {UserSimplePeerInterface} from "../WebRtc/SimplePeer";
@ -169,7 +170,10 @@ export class RoomConnection implements RoomConnection {
            } else if (message.hasWorldfullmessage()) {
                worldFullMessageStream.onMessage();
                this.closed = true;
-            } else if (message.hasWebrtcsignaltoclientmessage()) {
+            } else if (message.hasWorldconnexionmessage()) {
+                worldFullMessageStream.onMessage(message.getWorldconnexionmessage()?.getMessage());
+                this.closed = true;
+            }else if (message.hasWebrtcsignaltoclientmessage()) {
                this.dispatch(EventMessage.WEBRTC_SIGNAL, message.getWebrtcsignaltoclientmessage());
            } else if (message.hasWebrtcscreensharingsignaltoclientmessage()) {
                this.dispatch(EventMessage.WEBRTC_SCREEN_SHARING_SIGNAL, message.getWebrtcscreensharingsignaltoclientmessage());
--- a/front/src/Connexion/WorldFullMessageStream.ts
+++ b/front/src/Connexion/WorldFullMessageStream.ts
@ -2,12 +2,12 @@ import {Subject} from "rxjs";

 class WorldFullMessageStream {
    
-    private _stream:Subject<void> = new Subject();
+    private _stream:Subject<string|null> = new Subject<string|null>();
    public stream = this._stream.asObservable();


-    onMessage() {
-        this._stream.next();
+    onMessage(message? :string) {
+        this._stream.next(message);
    }
 }

--- a/front/src/Enum/EnvironmentVariable.ts
+++ b/front/src/Enum/EnvironmentVariable.ts
@ -10,8 +10,6 @@ const TURN_USER: string = process.env.TURN_USER || '';
 const TURN_PASSWORD: string = process.env.TURN_PASSWORD || '';
 const JITSI_URL : string|undefined = (process.env.JITSI_URL === '') ? undefined : process.env.JITSI_URL;
 const JITSI_PRIVATE_MODE : boolean = process.env.JITSI_PRIVATE_MODE == "true";
-const RESOLUTION = 2;
-const ZOOM_LEVEL = 1/*3/4*/;
 const POSITION_DELAY = 200; // Wait 200ms between sending position events
 const MAX_EXTRAPOLATION_TIME = 100; // Extrapolate a maximum of 250ms if no new movement is sent by the player
 export const MAX_USERNAME_LENGTH = parseInt(process.env.MAX_USERNAME_LENGTH || '') || 8;
@ -25,8 +23,6 @@ export {
    PUSHER_URL,
    UPLOADER_URL,
    ADMIN_URL,
-    RESOLUTION,
-    ZOOM_LEVEL,
    POSITION_DELAY,
    MAX_EXTRAPOLATION_TIME,
    STUN_SERVER,
--- a/front/src/Phaser/Components/MobileJoystick.ts
+++ b/front/src/Phaser/Components/MobileJoystick.ts
@ -1,8 +1,6 @@
 import VirtualJoystick from 'phaser3-rex-plugins/plugins/virtualjoystick.js';
-
-const outOfScreenX = -1000;
-const outOfScreenY = -1000;
-
+import ScaleManager = Phaser.Scale.ScaleManager;
+import {waScaleManager} from "../Services/WaScaleManager";

 //the assets were found here: https://hannemann.itch.io/virtual-joystick-pack-free
 export const joystickBaseKey = 'joystickBase';
@ -10,26 +8,58 @@ export const joystickBaseImg = 'resources/objects/joystickSplitted.png';
 export const joystickThumbKey = 'joystickThumb';
 export const joystickThumbImg = 'resources/objects/smallHandleFilledGrey.png';

+const baseSize = 50;
+const thumbSize = 25;
+const radius = 17.5;
+
 export class MobileJoystick extends VirtualJoystick {
-    
+    private resizeCallback: () => void;
+
    constructor(scene: Phaser.Scene) {
        super(scene, {
-            x: outOfScreenX,
-            y: outOfScreenY,
-            radius: 20,
-            base: scene.add.image(0, 0, joystickBaseKey).setDisplaySize(60, 60).setDepth(99999),
-            thumb: scene.add.image(0, 0, joystickThumbKey).setDisplaySize(30, 30).setDepth(99999),
+            x: -1000,
+            y: -1000,
+            radius: radius * window.devicePixelRatio,
+            base: scene.add.image(0, 0, joystickBaseKey).setDisplaySize(baseSize * window.devicePixelRatio, baseSize * window.devicePixelRatio).setDepth(99999),
+            thumb: scene.add.image(0, 0, joystickThumbKey).setDisplaySize(thumbSize * window.devicePixelRatio, thumbSize * window.devicePixelRatio).setDepth(99999),
            enable: true,
            dir: "8dir",
        });
+        this.visible = false;
+        this.enable = false;

-        this.scene.input.on('pointerdown', (pointer: { x: number; y: number; }) => {
-            this.x = pointer.x;
-            this.y = pointer.y;
+        this.scene.input.on('pointerdown', (pointer: { x: number; y: number; wasTouch: boolean; event: TouchEvent }) => {
+            if (!pointer.wasTouch) {
+                return;
+            }
+
+            // Let's only display the joystick if there is one finger on the screen
+            if (pointer.event.touches.length === 1) {
+                this.x = pointer.x;
+                this.y = pointer.y;
+                this.visible = true;
+                this.enable = true;
+            } else {
+                this.visible = false;
+                this.enable = false;
+            }
        });
        this.scene.input.on('pointerup', () => {
-            this.x = outOfScreenX;
-            this.y = outOfScreenY;
+            this.visible = false;
+            this.enable = false;
        });
+        this.resizeCallback = this.resize.bind(this);
+        this.scene.scale.on(Phaser.Scale.Events.RESIZE, this.resizeCallback);
    }
-}
+
+    private resize() {
+        this.base.setDisplaySize(baseSize / waScaleManager.zoomModifier * window.devicePixelRatio, baseSize / waScaleManager.zoomModifier * window.devicePixelRatio);
+        this.thumb.setDisplaySize(thumbSize / waScaleManager.zoomModifier * window.devicePixelRatio, thumbSize / waScaleManager.zoomModifier * window.devicePixelRatio);
+        this.setRadius(radius / waScaleManager.zoomModifier * window.devicePixelRatio);
+    }
+
+    public destroy() {
+        super.destroy();
+        this.scene.scale.removeListener(Phaser.Scale.Events.RESIZE, this.resizeCallback);
+    }
+}
--- a/front/src/Phaser/Entity/PlayerTexturesLoadingManager.ts
+++ b/front/src/Phaser/Entity/PlayerTexturesLoadingManager.ts
@ -62,7 +62,7 @@ export const getRessourceDescriptor = (textureKey: string|BodyResourceDescriptio
    const textureName:string = typeof textureKey === 'string' ? textureKey : textureKey.name;
    const playerResource = PLAYER_RESOURCES[textureName];
    if (playerResource !== undefined) return playerResource;
-    
+
    for (let i=0; i<LAYERS.length;i++) {
        const playerResource = LAYERS[i][textureName];
        if (playerResource !== undefined) return playerResource;
@ -81,4 +81,4 @@ const createLoadingPromise = (loadPlugin: LoaderPlugin, playerResourceDescriptor
        });
        loadPlugin.once('filecomplete-spritesheet-' + playerResourceDescriptor.name, () => res(playerResourceDescriptor));
    });
-}
+}
--- a/front/src/Phaser/Game/DirtyScene.ts
+++ b/front/src/Phaser/Game/DirtyScene.ts
@ -0,0 +1,52 @@
+import {ResizableScene} from "../Login/ResizableScene";
+import GameObject = Phaser.GameObjects.GameObject;
+import Events = Phaser.Scenes.Events;
+import AnimationEvents = Phaser.Animations.Events;
+
+/**
+ * A scene that can track its dirty/pristine state.
+ */
+export abstract class DirtyScene extends ResizableScene {
+    private isAlreadyTracking: boolean = false;
+    protected dirty:boolean = true;
+    private objectListChanged:boolean = true;
+
+    /**
+     * Track all objects added to the scene and adds a callback each time an animation is added.
+     * Whenever an object is added, removed, or when an animation is played, the dirty state is set to true.
+     *
+     * Note: this does not work with animations from sprites inside containers.
+     */
+    protected trackDirtyAnims(): void {
+        if (this.isAlreadyTracking) {
+            return;
+        }
+        this.isAlreadyTracking = true;
+        const trackAnimationFunction = this.trackAnimation.bind(this);
+        this.events.on(Events.ADDED_TO_SCENE, (gameObject: GameObject) => {
+            this.objectListChanged = true;
+            gameObject.on(AnimationEvents.ANIMATION_UPDATE, trackAnimationFunction);
+        });
+
+        this.events.on(Events.REMOVED_FROM_SCENE, (gameObject: GameObject) => {
+            this.objectListChanged = true;
+            gameObject.removeListener(AnimationEvents.ANIMATION_UPDATE, trackAnimationFunction);
+        });
+
+        this.events.on(Events.RENDER, () => {
+            this.objectListChanged = false;
+        });
+    }
+
+    private trackAnimation(): void {
+        this.objectListChanged = true;
+    }
+
+    public isDirty(): boolean {
+        return this.dirty || this.objectListChanged;
+    }
+
+    public onResize(ev: UIEvent): void {
+        this.objectListChanged = true;
+    }
+}
--- a/front/src/Phaser/Game/Game.ts
+++ b/front/src/Phaser/Game/Game.ts
@ -0,0 +1,88 @@
+const Events = Phaser.Core.Events;
+
+/**
+ * A specialization of the main Phaser Game scene.
+ * It comes with an optimization to skip rendering.
+ *
+ * Beware, the "step" function might vary in future versions of Phaser.
+ */
+export class Game extends Phaser.Game {
+    public step(time: number, delta: number)
+    {
+        // @ts-ignore
+        if (this.pendingDestroy)
+        {
+            // @ts-ignore
+            return this.runDestroy();
+        }
+
+        const eventEmitter = this.events;
+
+        //  Global Managers like Input and Sound update in the prestep
+
+        eventEmitter.emit(Events.PRE_STEP, time, delta);
+
+        //  This is mostly meant for user-land code and plugins
+
+        eventEmitter.emit(Events.STEP, time, delta);
+
+        //  Update the Scene Manager and all active Scenes
+
+        this.scene.update(time, delta);
+
+        //  Our final event before rendering starts
+
+        eventEmitter.emit(Events.POST_STEP, time, delta);
+
+        // This "if" is the changed introduced by the new "Game" class to avoid rendering unnecessarily.
+        if (this.isDirty()) {
+            const renderer = this.renderer;
+
+            //  Run the Pre-render (clearing the canvas, setting background colors, etc)
+
+            renderer.preRender();
+
+            eventEmitter.emit(Events.PRE_RENDER, renderer, time, delta);
+
+            //  The main render loop. Iterates all Scenes and all Cameras in those scenes, rendering to the renderer instance.
+
+            this.scene.render(renderer);
+
+            //  The Post-Render call. Tidies up loose end, takes snapshots, etc.
+
+            renderer.postRender();
+
+            //  The final event before the step repeats. Your last chance to do anything to the canvas before it all starts again.
+
+            eventEmitter.emit(Events.POST_RENDER, renderer, time, delta);
+        } else {
+            // @ts-ignore
+            this.scene.isProcessing = false;
+        }
+    }
+
+    private isDirty(): boolean {
+        //  Loop through the scenes in forward order
+        for (let i = 0; i < this.scene.scenes.length; i++)
+        {
+            const scene = this.scene.scenes[i];
+            const sys = scene.sys;
+
+            if (sys.settings.visible && sys.settings.status >= Phaser.Scenes.LOADING && sys.settings.status < Phaser.Scenes.SLEEPING)
+            {
+                // @ts-ignore
+                if(typeof scene.isDirty === 'function') {
+                    // @ts-ignore
+                    const isDirty = scene.isDirty() || scene.tweens.getAllTweens().length > 0;
+                    if (isDirty) {
+                        return true;
+                    }
+                } else {
+                    return true;
+                }
+            }
+        }
+
+        return false;
+    }
+}
--- a/front/src/Phaser/Game/GameManager.ts
+++ b/front/src/Phaser/Game/GameManager.ts
@ -89,10 +89,7 @@ export class GameManager {
        console.log('starting '+ (this.currentGameSceneName || this.startRoom.id))
        scenePlugin.start(this.currentGameSceneName || this.startRoom.id);
        scenePlugin.launch(MenuSceneName);
-        
-        if (!localUserStore.getHelpCameraSettingsShown()) {
-            scenePlugin.launch(HelpCameraSettingsSceneName);//700
-        }
+        scenePlugin.launch(HelpCameraSettingsSceneName);//700
    }
    
    public gameSceneIsCreated(scene: GameScene) {
--- a/front/src/Phaser/Game/GameScene.ts
+++ b/front/src/Phaser/Game/GameScene.ts
@ -15,8 +15,6 @@ import {
    JITSI_PRIVATE_MODE,
    MAX_PER_GROUP,
    POSITION_DELAY,
-    RESOLUTION,
-    ZOOM_LEVEL
 } from "../../Enum/EnvironmentVariable";
 import {
    ITiledMap,
@ -86,10 +84,14 @@ import EVENT_TYPE =Phaser.Scenes.Events
 import {Subscription} from "rxjs";
 import {worldFullMessageStream} from "../../Connexion/WorldFullMessageStream";
 import { lazyLoadCompanionResource } from "../Companion/CompanionTexturesLoadingManager";
+import RenderTexture = Phaser.GameObjects.RenderTexture;
+import Tilemap = Phaser.Tilemaps.Tilemap;
+import {DirtyScene} from "./DirtyScene";
 import {TextUtils} from "../Components/TextUtils";
 import {touchScreenManager} from "../../Touch/TouchScreenManager";
 import {PinchManager} from "../UserInput/PinchManager";
 import {joystickBaseImg, joystickBaseKey, joystickThumbImg, joystickThumbKey} from "../Components/MobileJoystick";
+import {waScaleManager} from "../Services/WaScaleManager";

 export interface GameSceneInitInterface {
    initPosition: PointInterface|null,
@ -128,13 +130,13 @@ interface DeleteGroupEventInterface {

 const defaultStartLayerName = 'start';

-export class GameScene extends ResizableScene implements CenterListener {
+export class GameScene extends DirtyScene implements CenterListener {
    Terrains : Array<Phaser.Tilemaps.Tileset>;
    CurrentPlayer!: CurrentGamerInterface;
    MapPlayers!: Phaser.Physics.Arcade.Group;
    MapPlayersByKey : Map<number, RemotePlayer> = new Map<number, RemotePlayer>();
    Map!: Phaser.Tilemaps.Tilemap;
-    Layers!: Array<Phaser.Tilemaps.StaticTilemapLayer>;
+    Layers!: Array<Phaser.Tilemaps.TilemapLayer>;
    Objects!: Array<Phaser.Physics.Arcade.Sprite>;
    mapFile!: ITiledMap;
    groups: Map<number, Sprite>;
@ -184,6 +186,7 @@ export class GameScene extends ResizableScene implements CenterListener {
    private messageSubscription: Subscription|null = null;
    private popUpElements : Map<number, DOMElement> = new Map<number, Phaser.GameObjects.DOMElement>();
    private originalMapUrl: string|undefined;
+    private pinchManager: PinchManager|undefined;

    constructor(private room: Room, MapUrlFile: string, customKey?: string|undefined) {
        super({
@ -202,12 +205,11 @@ export class GameScene extends ResizableScene implements CenterListener {
        })
        this.connectionAnswerPromise = new Promise<RoomJoinedMessageInterface>((resolve, reject): void => {
            this.connectionAnswerPromiseResolve = resolve;
-        })
+        });
    }

    //hook preload scene
    preload(): void {
-        addLoader(this);
        const localUser = localUserStore.getLocalUser();
        const textures = localUser?.textures;
        if (textures) {
@ -267,6 +269,9 @@ export class GameScene extends ResizableScene implements CenterListener {

        this.load.spritesheet('layout_modes', 'resources/objects/layout_modes.png', {frameWidth: 32, frameHeight: 32});
        this.load.bitmapFont('main_font', 'resources/fonts/arcade.png', 'resources/fonts/arcade.xml');
+
+        //this function must stay at the end of preload function
+        addLoader(this);
    }

    // FIXME: we need to put a "unknown" instead of a "any" and validate the structure of the JSON we are receiving.
@ -365,15 +370,17 @@ export class GameScene extends ResizableScene implements CenterListener {

    //hook create scene
    create(): void {
+        this.trackDirtyAnims();
+
        gameManager.gameSceneIsCreated(this);
        urlManager.pushRoomIdToUrl(this.room);
        this.startLayerName = urlManager.getStartLayerNameFromUrl();

        if (touchScreenManager.supportTouchScreen) {
-            new PinchManager(this);
+            this.pinchManager = new PinchManager(this);
        }

-        this.messageSubscription = worldFullMessageStream.stream.subscribe((message) => this.showWorldFullError())
+        this.messageSubscription = worldFullMessageStream.stream.subscribe((message) => this.showWorldFullError(message))

        const playerName = gameManager.getPlayerName();
        if (!playerName) {
@ -395,12 +402,11 @@ export class GameScene extends ResizableScene implements CenterListener {
        this.physics.world.setBounds(0, 0, this.Map.widthInPixels, this.Map.heightInPixels);

        //add layer on map
-        this.Layers = new Array<Phaser.Tilemaps.StaticTilemapLayer>();
-
+        this.Layers = new Array<Phaser.Tilemaps.TilemapLayer>();
        let depth = -2;
        for (const layer of this.gameMap.layersIterator) {
            if (layer.type === 'tilelayer') {
-                this.addLayer(this.Map.createStaticLayer(layer.name, this.Terrains, 0, 0).setDepth(depth));
+                this.addLayer(this.Map.createLayer(layer.name, this.Terrains, 0, 0).setDepth(depth));

                const exitSceneUrl = this.getExitSceneUrl(layer);
                if (exitSceneUrl !== undefined) {
@ -436,8 +442,8 @@ export class GameScene extends ResizableScene implements CenterListener {


        //create input to move
-        mediaManager.setUserInputManager(this.userInputManager);
        this.userInputManager = new UserInputManager(this);
+        mediaManager.setUserInputManager(this.userInputManager);

        if (localUserStore.getFullscreen()) {
            document.querySelector('body')?.requestFullscreen();
@ -917,9 +923,11 @@ ${escapedMessage}
        audioManager.unloadAudio();
        // We are completely destroying the current scene to avoid using a half-backed instance when coming back to the same map.
        this.connection?.closeConnection();
-        this.simplePeer.closeAllConnections();
+        this.simplePeer?.closeAllConnections();
        this.simplePeer?.unregister();
        this.messageSubscription?.unsubscribe();
+        this.userInputManager.destroy();
+        this.pinchManager?.destroy();

        for(const iframeEvents of this.iframeSubscriptionList){
            iframeEvents.unsubscribe();
@ -1067,17 +1075,18 @@ ${escapedMessage}
    //todo: in a dedicated class/function?
    initCamera() {
        this.cameras.main.setBounds(0,0, this.Map.widthInPixels, this.Map.heightInPixels);
+        this.cameras.main.startFollow(this.CurrentPlayer, true);
        this.updateCameraOffset();
-        this.cameras.main.setZoom(ZOOM_LEVEL);
    }

-    addLayer(Layer : Phaser.Tilemaps.StaticTilemapLayer){
+    addLayer(Layer : Phaser.Tilemaps.TilemapLayer){
        this.Layers.push(Layer);
    }

    createCollisionWithPlayer() {
+        this.physics.disableUpdate();
        //add collision layer
-        this.Layers.forEach((Layer: Phaser.Tilemaps.StaticTilemapLayer) => {
+        this.Layers.forEach((Layer: Phaser.Tilemaps.TilemapLayer) => {
            this.physics.add.collider(this.CurrentPlayer, Layer, (object1: GameObject, object2: GameObject) => {
                //this.CurrentPlayer.say("Collision with layer : "+ (object2 as Tile).layer.name)
            });
@ -1206,12 +1215,24 @@ ${escapedMessage}
     * @param delta The delta time in ms since the last frame. This is a smoothed and capped value based on the FPS rate.
     */
    update(time: number, delta: number) : void {
-        mediaManager.setLastUpdateScene();
+        this.dirty = false;
+        mediaManager.updateScene();
        this.currentTick = time;
+        if (this.CurrentPlayer.isMoving()) {
+            this.dirty = true;
+        }
        this.CurrentPlayer.moveUser(delta);
+        if (this.CurrentPlayer.isMoving()) {
+            this.dirty = true;
+            this.physics.enableUpdate();
+        } else {
+            this.physics.disableUpdate();
+        }
+

        // Let's handle all events
        while (this.pendingEvents.length !== 0) {
+            this.dirty = true;
            const event = this.pendingEvents.dequeue();
            switch (event.type) {
                case "InitUserPositionEvent":
@ -1237,6 +1258,7 @@ ${escapedMessage}
        // Let's move all users
        const updatedPlayersPositions = this.playersPositionInterpolator.getUpdatedPositions(time);
        updatedPlayersPositions.forEach((moveEvent: HasMovedEvent, userId: number) => {
+            this.dirty = true;
            const player: RemotePlayer | undefined = this.MapPlayersByKey.get(userId);
            if (player === undefined) {
                throw new Error('Cannot find player with ID "' + userId + '"');
@ -1406,7 +1428,8 @@ ${escapedMessage}
        this.connection?.emitActionableEvent(itemId, eventName, state, parameters);
    }

-    public onResize(): void {
+    public onResize(ev: UIEvent): void {
+        super.onResize(ev);
        this.reposition();

        // Send new viewport to server
@ -1441,19 +1464,18 @@ ${escapedMessage}
    }

    /**
-     * Updates the offset of the character compared to the center of the screen according to the layout mananger
-     * (tries to put the character in the center of the reamining space if there is a discussion going on.
+     * Updates the offset of the character compared to the center of the screen according to the layout manager
+     * (tries to put the character in the center of the remaining space if there is a discussion going on.
     */
    private updateCameraOffset(): void {
        const array = layoutManager.findBiggestAvailableArray();
-        let xCenter = (array.xEnd - array.xStart) / 2 + array.xStart;
-        let yCenter = (array.yEnd - array.yStart) / 2 + array.yStart;
+        const xCenter = (array.xEnd - array.xStart) / 2 + array.xStart;
+        const yCenter = (array.yEnd - array.yStart) / 2 + array.yStart;

+        const game = HtmlUtils.querySelectorOrFail<HTMLCanvasElement>('#game canvas');
        // Let's put this in Game coordinates by applying the zoom level:
-        xCenter /= ZOOM_LEVEL * RESOLUTION;
-        yCenter /= ZOOM_LEVEL * RESOLUTION;

-        this.cameras.main.startFollow(this.CurrentPlayer, true, 1, 1,  xCenter - this.game.renderer.width / 2, yCenter - this.game.renderer.height / 2);
+        this.cameras.main.setFollowOffset((xCenter - game.offsetWidth/2) * window.devicePixelRatio / this.scale.zoom , (yCenter - game.offsetHeight/2) * window.devicePixelRatio / this.scale.zoom);
    }

    public onCenterChange(): void {
@ -1496,14 +1518,29 @@ ${escapedMessage}
    }

    //todo: put this into an 'orchestrator' scene (EntryScene?)
-    private showWorldFullError(): void {
+    private showWorldFullError(message: string|null): void {
        this.cleanupClosingScene();
        this.scene.stop(ReconnectingSceneName);
+        this.scene.remove(ReconnectingSceneName);
        this.userInputManager.disableControls();
-        this.scene.start(ErrorSceneName, {
-            title: 'Connection rejected',
-            subTitle: 'The world you are trying to join is full. Try again later.',
-            message: 'If you want more information, you may contact us at: workadventure@thecodingmachine.com'
-        });
+        //FIX ME to use status code
+        if(message == undefined){
+            this.scene.start(ErrorSceneName, {
+                title: 'Connection rejected',
+                subTitle: 'The world you are trying to join is full. Try again later.',
+                message: 'If you want more information, you may contact us at: workadventure@thecodingmachine.com'
+            });
+        }else{
+            this.scene.start(ErrorSceneName, {
+                title: 'Connection rejected',
+                subTitle: 'You cannot join the World. Try again later. \n\r \n\r Error: '+message+'.',
+                message: 'If you want more information, you may contact administrator or contact us at: workadventure@thecodingmachine.com'
+            });
+        }
+    }
+
+    zoomByFactor(zoomFactor: number) {
+        waScaleManager.zoomModifier *= zoomFactor;
+        this.updateCameraOffset();
    }
 }
--- a/front/src/Phaser/Login/CustomizeScene.ts
+++ b/front/src/Phaser/Login/CustomizeScene.ts
@ -11,7 +11,6 @@ import {AbstractCharacterScene} from "./AbstractCharacterScene";
 import {areCharacterLayersValid} from "../../Connexion/LocalUser";
 import { MenuScene } from "../Menu/MenuScene";
 import { SelectCharacterSceneName } from "./SelectCharacterScene";
-import { RESOLUTION } from "../../Enum/EnvironmentVariable";

 export const CustomizeSceneName = "CustomizeScene";

@ -35,24 +34,25 @@ export class CustomizeScene extends AbstractCharacterScene {
    }

    preload() {
-        addLoader(this);
-
        this.load.html(customizeSceneKey, 'resources/html/CustomCharacterScene.html');

        this.layers = loadAllLayers(this.load);
        this.loadCustomSceneSelectCharacters().then((bodyResourceDescriptions) => {
            bodyResourceDescriptions.forEach((bodyResourceDescription) => {
-                if(!bodyResourceDescription.level){
+                if(bodyResourceDescription.level == undefined || bodyResourceDescription.level < 0 || bodyResourceDescription.level > 5 ){
                    throw 'Texture level is null';
                }
                this.layers[bodyResourceDescription.level].unshift(bodyResourceDescription);
            });
        });
+
+        //this function must stay at the end of preload function
+        addLoader(this);
    }

    create() {
-        const middleX = this.getMiddleX();
-        this.customizeSceneElement = this.add.dom(middleX, 0).createFromCache(customizeSceneKey);
+        this.customizeSceneElement = this.add.dom(-1000, 0).createFromCache(customizeSceneKey);
+        this.centerXDomElement(this.customizeSceneElement, 150);
        MenuScene.revealMenusAfterInit(this.customizeSceneElement, customizeSceneKey);

        this.customizeSceneElement.addListener('click');
@ -112,6 +112,8 @@ export class CustomizeScene extends AbstractCharacterScene {
            this.moveLayers();
            this.updateSelectedLayer();
        }
+
+        this.onResize();
    }

    private moveCursorHorizontally(index: number): void {
@ -256,16 +258,10 @@ export class CustomizeScene extends AbstractCharacterScene {
                this.containersRow[i][j].add(children);
            }
        }
-     }
+    }
+
+    update(time: number, delta: number): void {

-     update(time: number, delta: number): void {
-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.customizeSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
    }

     public onResize(): void {
@ -274,26 +270,9 @@ export class CustomizeScene extends AbstractCharacterScene {
        this.Rectangle.x = this.cameras.main.worldView.x + this.cameras.main.width / 2;
        this.Rectangle.y = this.cameras.main.worldView.y + this.cameras.main.height / 3;

-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.customizeSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
+        this.centerXDomElement(this.customizeSceneElement, 150);
     }

-     protected getMiddleX() : number{
-        return (this.game.renderer.width / RESOLUTION) -  
-        (
-            this.customizeSceneElement
-            && this.customizeSceneElement.node
-            && this.customizeSceneElement.node.getBoundingClientRect().width > 0
-            ? (this.customizeSceneElement.node.getBoundingClientRect().width / (2*RESOLUTION))
-            : 150
-        );
-    }
-
    private nextSceneToCamera(){
        const layers: string[] = [];
            let i = 0;
--- a/front/src/Phaser/Login/EnableCameraScene.ts
+++ b/front/src/Phaser/Login/EnableCameraScene.ts
@ -1,9 +1,7 @@
 import {gameManager} from "../Game/GameManager";
 import {TextField} from "../Components/TextField";
 import Image = Phaser.GameObjects.Image;
-import Rectangle = Phaser.GameObjects.Rectangle;
 import {mediaManager} from "../../WebRtc/MediaManager";
-import {RESOLUTION} from "../../Enum/EnvironmentVariable";
 import {SoundMeter} from "../Components/SoundMeter";
 import {SoundMeterSprite} from "../Components/SoundMeterSprite";
 import {HtmlUtils} from "../../WebRtc/HtmlUtils";
@ -11,6 +9,7 @@ import {touchScreenManager} from "../../Touch/TouchScreenManager";
 import {PinchManager} from "../UserInput/PinchManager";
 import Zone = Phaser.GameObjects.Zone;
 import { MenuScene } from "../Menu/MenuScene";
+import {ResizableScene} from "./ResizableScene";

 export const EnableCameraSceneName = "EnableCameraScene";
 enum LoginTextures {
@ -23,7 +22,7 @@ enum LoginTextures {

 const enableCameraSceneKey = 'enableCameraScene';

-export class EnableCameraScene extends Phaser.Scene {
+export class EnableCameraScene extends ResizableScene {
    private textField!: TextField;
    private cameraNameField!: TextField;
    private arrowLeft!: Image;
@ -37,11 +36,11 @@ export class EnableCameraScene extends Phaser.Scene {
    private soundMeter: SoundMeter;
    private soundMeterSprite!: SoundMeterSprite;
    private microphoneNameField!: TextField;
-    private repositionCallback!: (this: Window, ev: UIEvent) => void;

    private enableCameraSceneElement!: Phaser.GameObjects.DOMElement;

    private mobileTapZone!: Zone;
+
    constructor() {
        super({
            key: EnableCameraSceneName
@ -62,8 +61,9 @@ export class EnableCameraScene extends Phaser.Scene {

    create() {

-        const middleX = this.getMiddleX();
-        this.enableCameraSceneElement = this.add.dom(middleX, 0).createFromCache(enableCameraSceneKey);
+        this.enableCameraSceneElement = this.add.dom(-1000, 0).createFromCache(enableCameraSceneKey);
+        this.centerXDomElement(this.enableCameraSceneElement, 300);
+
        MenuScene.revealMenusAfterInit(this.enableCameraSceneElement, enableCameraSceneKey);

        const continuingButton = this.enableCameraSceneElement.getChildByID('enableCameraSceneFormSubmit') as HTMLButtonElement;
@ -75,12 +75,14 @@ export class EnableCameraScene extends Phaser.Scene {
        if (touchScreenManager.supportTouchScreen) {
            new PinchManager(this);
        }
-        
+        //this.scale.setZoom(ZOOM_LEVEL);
+        //Phaser.Display.Align.In.BottomCenter(this.pressReturnField, zone);
+
        /* FIX ME */
-        this.textField = new TextField(this, this.game.renderer.width / 2, 20, '');
+        this.textField = new TextField(this, this.scale.width / 2, 20, '');

        // For mobile purposes - we need a big enough touchable area.
-        this.mobileTapZone = this.add.zone(this.game.renderer.width / 2,this.game.renderer.height - 30,200,50)
+        this.mobileTapZone = this.add.zone(this.scale.width / 2,this.scale.height - 30,200,50)
          .setInteractive().on("pointerdown", () => {
            this.login();
          });
@ -130,8 +132,7 @@ export class EnableCameraScene extends Phaser.Scene {
        this.soundMeterSprite.setVisible(false);
        this.add.existing(this.soundMeterSprite);

-        this.repositionCallback = this.reposition.bind(this);
-        window.addEventListener('resize', this.repositionCallback);
+        this.onResize();
    }

    private previousCam(): void {
@ -209,10 +210,9 @@ export class EnableCameraScene extends Phaser.Scene {
            this.arrowUp.setVisible(this.microphoneSelected > 0);

        }
-        this.reposition();
    }

-    private reposition(): void {
+    public onResize(): void {
        let div = HtmlUtils.getElementByIdOrFail<HTMLVideoElement>('myCamVideoSetup');
        let bounds = div.getBoundingClientRect();
        if (!div.srcObject) {
@ -225,44 +225,41 @@ export class EnableCameraScene extends Phaser.Scene {
        this.cameraNameField.x = this.game.renderer.width / 2;
        this.microphoneNameField.x = this.game.renderer.width / 2;

-        this.cameraNameField.y = bounds.top / RESOLUTION - 8;
+        this.cameraNameField.y = bounds.top / this.scale.zoom - 8;

        this.soundMeterSprite.x = this.game.renderer.width / 2 - this.soundMeterSprite.getWidth() / 2;
-        this.soundMeterSprite.y = bounds.bottom / RESOLUTION + 16;
+        this.soundMeterSprite.y = bounds.bottom / this.scale.zoom + 16;

        this.microphoneNameField.y = this.soundMeterSprite.y + 22;

-        this.arrowRight.x = bounds.right / RESOLUTION + 16;
-        this.arrowRight.y = (bounds.top + bounds.height / 2) / RESOLUTION;
+        this.arrowRight.x = bounds.right / this.scale.zoom + 16;
+        this.arrowRight.y = (bounds.top + bounds.height / 2) / this.scale.zoom;

-        this.arrowLeft.x = bounds.left / RESOLUTION - 16;
-        this.arrowLeft.y = (bounds.top + bounds.height / 2) / RESOLUTION;
+        this.arrowLeft.x = bounds.left / this.scale.zoom - 16;
+        this.arrowLeft.y = (bounds.top + bounds.height / 2) / this.scale.zoom;

        this.arrowDown.x = this.microphoneNameField.x + this.microphoneNameField.width / 2 + 16;
        this.arrowDown.y = this.microphoneNameField.y;

        this.arrowUp.x = this.microphoneNameField.x - this.microphoneNameField.width / 2 - 16;
        this.arrowUp.y = this.microphoneNameField.y;
+
+        const actionBtn = document.querySelector<HTMLDivElement>('#enableCameraScene .action');
+        if (actionBtn !== null) {
+            actionBtn.style.top = (this.scale.height - 65) + 'px';
+        }
    }

    update(time: number, delta: number): void {
        this.soundMeterSprite.setVolume(this.soundMeter.getVolume());
+        mediaManager.updateScene();

-        mediaManager.setLastUpdateScene();
-
-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.enableCameraSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
+        this.centerXDomElement(this.enableCameraSceneElement, 300);
    }

    private login(): void {
        HtmlUtils.getElementByIdOrFail<HTMLDivElement>('webRtcSetup').style.display = 'none';
        this.soundMeter.stop();
-        window.removeEventListener('resize', this.repositionCallback);

        mediaManager.stopCamera();
        mediaManager.stopMicrophone();
@ -282,15 +279,4 @@ export class EnableCameraScene extends Phaser.Scene {
        }
        this.updateWebCamName();
    }
-
-    private getMiddleX() : number{
-        return (this.game.renderer.width / RESOLUTION) -
-        (
-            this.enableCameraSceneElement
-            && this.enableCameraSceneElement.node
-            && this.enableCameraSceneElement.node.getBoundingClientRect().width > 0
-            ? (this.enableCameraSceneElement.node.getBoundingClientRect().width / (2*RESOLUTION))
-            : (300 / RESOLUTION)
-        );
-    }
 }
--- a/front/src/Phaser/Login/EntryScene.ts
+++ b/front/src/Phaser/Login/EntryScene.ts
@ -2,6 +2,7 @@ import {gameManager} from "../Game/GameManager";
 import {Scene} from "phaser";
 import {ErrorScene} from "../Reconnecting/ErrorScene";
 import {WAError} from "../Reconnecting/WAError";
+import {waScaleManager} from "../Services/WaScaleManager";

 export const EntrySceneName = "EntryScene";

@ -17,11 +18,18 @@ export class EntryScene extends Scene {
    }

    create() {
+
        gameManager.init(this.scene).then((nextSceneName) => {
+            // Let's rescale before starting the game
+            // We can do it at this stage.
+            waScaleManager.applyNewSize();
            this.scene.start(nextSceneName);
        }).catch((err) => {
            if (err.response && err.response.status == 404) {
-                ErrorScene.showError(new WAError('Page Not Found', 'Could not find map', window.location.pathname), this.scene);
+                ErrorScene.showError(new WAError(
+                    'Access link incorrect', 
+                    'Could not find map. Please check your access link.', 
+                    'If you want more information, you may contact administrator or contact us at: workadventure@thecodingmachine.com'), this.scene);
            } else {
                ErrorScene.showError(err, this.scene);
            }
--- a/front/src/Phaser/Login/LoginScene.ts
+++ b/front/src/Phaser/Login/LoginScene.ts
@ -4,7 +4,6 @@ import {ResizableScene} from "./ResizableScene";
 import { localUserStore } from "../../Connexion/LocalUserStore";
 import {MenuScene} from "../Menu/MenuScene";
 import { isUserNameValid } from "../../Connexion/LocalUser";
-import { RESOLUTION } from "../../Enum/EnvironmentVariable";

 export const LoginSceneName = "LoginScene";

@ -27,8 +26,8 @@ export class LoginScene extends ResizableScene {
    }

    create() {
-        const middleX = this.getMiddleX();
-        this.loginSceneElement = this.add.dom(middleX, 0).createFromCache(loginSceneKey);
+        this.loginSceneElement = this.add.dom(-1000, 0).createFromCache(loginSceneKey);
+        this.centerXDomElement(this.loginSceneElement, 200);
        MenuScene.revealMenusAfterInit(this.loginSceneElement, loginSceneKey);

        const pErrorElement = this.loginSceneElement.getChildByID('errorLoginScene') as HTMLInputElement;
@ -78,27 +77,10 @@ export class LoginScene extends ResizableScene {
    }

    update(time: number, delta: number): void {
-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.loginSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
+
    }

    public onResize(ev: UIEvent): void {
-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.loginSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
-    }
-
-    private getMiddleX() : number{
-        const middleX = ((window.innerWidth) - ((this.loginSceneElement && this.loginSceneElement.width > 0 ? this.loginSceneElement.width : 200 /*FIXME to use a const will be injected in HTMLElement*/)*2)) / 2;
-        return (middleX > 0 ? (middleX / 2) : 0);
+        this.centerXDomElement(this.loginSceneElement, 200);
    }
 }
--- a/front/src/Phaser/Login/ResizableScene.ts
+++ b/front/src/Phaser/Login/ResizableScene.ts
@ -1,5 +1,23 @@
 import {Scene} from "phaser";
+import DOMElement = Phaser.GameObjects.DOMElement;

 export abstract class ResizableScene extends Scene {
    public abstract onResize(ev: UIEvent): void;
+
+    /**
+     * Centers the DOM element on the X axis.
+     *
+     * @param object
+     * @param defaultWidth The width of the DOM element. We try to compute it but it may not be available if called from "create".
+     */
+    public centerXDomElement(object: DOMElement, defaultWidth: number): void {
+        object.x = (this.scale.width / 2) -
+            (
+                object
+                && object.node
+                && object.node.getBoundingClientRect().width > 0
+                    ? (object.node.getBoundingClientRect().width / 2 / this.scale.zoom)
+                    : (300 / this.scale.zoom)
+            );
+    }
 }
--- a/front/src/Phaser/Login/SelectCharacterMobileScene.ts
+++ b/front/src/Phaser/Login/SelectCharacterMobileScene.ts
@ -6,7 +6,6 @@ import {EnableCameraSceneName} from "./EnableCameraScene";
 import {CustomizeSceneName} from "./CustomizeScene";
 import {localUserStore} from "../../Connexion/LocalUserStore";
 import {loadAllDefaultModels} from "../Entity/PlayerTexturesLoadingManager";
-import {addLoader} from "../Components/Loader";
 import {BodyResourceDescriptionInterface} from "../Entity/PlayerTextures";
 import {AbstractCharacterScene} from "./AbstractCharacterScene";
 import {areCharacterLayersValid} from "../../Connexion/LocalUser";
--- a/front/src/Phaser/Login/SelectCharacterScene.ts
+++ b/front/src/Phaser/Login/SelectCharacterScene.ts
@ -37,8 +37,6 @@ export class SelectCharacterScene extends AbstractCharacterScene {
    }

    preload() {
-        addLoader(this);
-
        this.load.html(selectCharacterKey, 'resources/html/selectCharacterScene.html');

        this.loadSelectSceneCharacters().then((bodyResourceDescriptions) => {
@ -47,13 +45,15 @@ export class SelectCharacterScene extends AbstractCharacterScene {
            });
        })
        this.playerModels = loadAllDefaultModels(this.load);
+
+        //this function must stay at the end of preload function
        addLoader(this);
    }

    create() {

-        const middleX = this.getMiddleX();
-        this.selectCharacterSceneElement = this.add.dom(middleX, 0).createFromCache(selectCharacterKey);
+        this.selectCharacterSceneElement = this.add.dom(-1000, 0).createFromCache(selectCharacterKey);
+        this.centerXDomElement(this.selectCharacterSceneElement, 150);
        MenuScene.revealMenusAfterInit(this.selectCharacterSceneElement, selectCharacterKey);

        this.selectCharacterSceneElement.addListener('click');
@ -240,36 +240,12 @@ export class SelectCharacterScene extends AbstractCharacterScene {
    }

    update(time: number, delta: number): void {
-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.selectCharacterSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
    }

    public onResize(ev: UIEvent): void {
        //move position of user
        this.moveUser();

-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.selectCharacterSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
-    }
-
-    protected getMiddleX() : number{
-        return (this.game.renderer.width / 2) -
-        (
-            this.selectCharacterSceneElement
-            && this.selectCharacterSceneElement.node
-            && this.selectCharacterSceneElement.node.getBoundingClientRect().width > 0
-            ? (this.selectCharacterSceneElement.node.getBoundingClientRect().width / 4)
-            : 150
-        );
+        this.centerXDomElement(this.selectCharacterSceneElement, 150);
    }
 }
--- a/front/src/Phaser/Login/SelectCompanionScene.ts
+++ b/front/src/Phaser/Login/SelectCompanionScene.ts
@ -10,7 +10,6 @@ import { getAllCompanionResources } from "../Companion/CompanionTexturesLoadingM
 import {touchScreenManager} from "../../Touch/TouchScreenManager";
 import {PinchManager} from "../UserInput/PinchManager";
 import { MenuScene } from "../Menu/MenuScene";
-import { RESOLUTION } from "../../Enum/EnvironmentVariable";

 export const SelectCompanionSceneName = "SelectCompanionScene";

@ -31,21 +30,20 @@ export class SelectCompanionScene extends ResizableScene {
    }

    preload() {
-        addLoader(this);
-
        this.load.html(selectCompanionSceneKey, 'resources/html/SelectCompanionScene.html');

        getAllCompanionResources(this.load).forEach(model => {
            this.companionModels.push(model);
        });

+        //this function must stay at the end of preload function
        addLoader(this);
    }

    create() {

-        const middleX = this.getMiddleX();
-        this.selectCompanionSceneElement = this.add.dom(middleX, 0).createFromCache(selectCompanionSceneKey);
+        this.selectCompanionSceneElement = this.add.dom(-1000, 0).createFromCache(selectCompanionSceneKey);
+        this.centerXDomElement(this.selectCompanionSceneElement, 150);
        MenuScene.revealMenusAfterInit(this.selectCompanionSceneElement, selectCompanionSceneKey);

        this.selectCompanionSceneElement.addListener('click');
@ -88,13 +86,7 @@ export class SelectCompanionScene extends ResizableScene {
    }

    update(time: number, delta: number): void {
-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.selectCompanionSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
+
    }

    private nextScene(): void {
@ -137,13 +129,7 @@ export class SelectCompanionScene extends ResizableScene {
    public onResize(ev: UIEvent): void {
        this.moveCompanion();

-        const middleX = this.getMiddleX();
-        this.tweens.add({
-            targets: this.selectCompanionSceneElement,
-            x: middleX,
-            duration: 1000,
-            ease: 'Power3'
-        });
+        this.centerXDomElement(this.selectCompanionSceneElement, 150);
    }

    private updateSelectedCompanion(): void {
@ -239,15 +225,4 @@ export class SelectCompanionScene extends ResizableScene {
        companion.setX(companionX);
        companion.setY(companionY);
    }
-
-    private getMiddleX() : number{
-        return (this.game.renderer.width / RESOLUTION) -
-        (
-            this.selectCompanionSceneElement
-            && this.selectCompanionSceneElement.node
-            && this.selectCompanionSceneElement.node.getBoundingClientRect().width > 0
-            ? (this.selectCompanionSceneElement.node.getBoundingClientRect().width / (2*RESOLUTION))
-            : 150
-        );
-    }
 }
--- a/front/src/Phaser/Menu/HelpCameraSettingsScene.ts
+++ b/front/src/Phaser/Menu/HelpCameraSettingsScene.ts
@ -1,14 +1,14 @@
 import {mediaManager} from "../../WebRtc/MediaManager";
 import {HtmlUtils} from "../../WebRtc/HtmlUtils";
 import {localUserStore} from "../../Connexion/LocalUserStore";
-import { RESOLUTION } from "../../Enum/EnvironmentVariable";
+import {DirtyScene} from "../Game/DirtyScene";

 export const HelpCameraSettingsSceneName = 'HelpCameraSettingsScene';
 const helpCameraSettings = 'helpCameraSettings';
 /**
 * The scene that show how to permit Camera and Microphone access if there are not already allowed
 */
-export class HelpCameraSettingsScene extends Phaser.Scene {
+export class HelpCameraSettingsScene extends DirtyScene {
    private helpCameraSettingsElement!: Phaser.GameObjects.DOMElement;
    private helpCameraSettingsOpened: boolean = false;

@ -21,7 +21,6 @@ export class HelpCameraSettingsScene extends Phaser.Scene {
    }

    create(){
-        localUserStore.setHelpCameraSettingsShown();
        this.createHelpCameraSettings();
    }

@ -31,6 +30,9 @@ export class HelpCameraSettingsScene extends Phaser.Scene {
        this.revealMenusAfterInit(this.helpCameraSettingsElement, helpCameraSettings);
        this.helpCameraSettingsElement.addListener('click');
        this.helpCameraSettingsElement.on('click',  (event:MouseEvent) => {
+            if((event?.target as HTMLInputElement).id === 'mailto') {
+                return;
+            }
            event.preventDefault();
            if((event?.target as HTMLInputElement).id === 'helpCameraSettingsFormRefresh') {
                window.location.reload();
@ -39,18 +41,27 @@ export class HelpCameraSettingsScene extends Phaser.Scene {
            }
        });

-        if(!mediaManager.constraintsMedia.audio || !mediaManager.constraintsMedia.video){
+        if(!localUserStore.getHelpCameraSettingsShown() && (!mediaManager.constraintsMedia.audio || !mediaManager.constraintsMedia.video)){
            this.openHelpCameraSettingsOpened();
+            localUserStore.setHelpCameraSettingsShown();
        }
+
+        mediaManager.setHelpCameraSettingsCallBack(() => {
+            this.openHelpCameraSettingsOpened();
+        });
    }

    private openHelpCameraSettingsOpened(): void{
        HtmlUtils.getElementByIdOrFail<HTMLDivElement>('webRtcSetup').style.display = 'none';
        this.helpCameraSettingsOpened = true;
-        if(window.navigator.userAgent.includes('Firefox')){
-            HtmlUtils.getElementByIdOrFail<HTMLParagraphElement>('browserHelpSetting').innerHTML ='<img src="/resources/objects/help-setting-camera-permission-firefox.png"/>';
-        }else if(window.navigator.userAgent.includes('Chrome')){
-            HtmlUtils.getElementByIdOrFail<HTMLParagraphElement>('browserHelpSetting').innerHTML ='<img src="/resources/objects/help-setting-camera-permission-chrome.png"/>';
+        try{
+            if(window.navigator.userAgent.includes('Firefox')){
+                HtmlUtils.getElementByIdOrFail<HTMLParagraphElement>('browserHelpSetting').innerHTML ='<img src="/resources/objects/help-setting-camera-permission-firefox.png"/>';
+            }else if(window.navigator.userAgent.includes('Chrome')){
+                HtmlUtils.getElementByIdOrFail<HTMLParagraphElement>('browserHelpSetting').innerHTML ='<img src="/resources/objects/help-setting-camera-permission-chrome.png"/>';
+            }
+        }catch(err) {
+            console.error('openHelpCameraSettingsOpened => getElementByIdOrFail => error', err);
        }
        const middleY = this.getMiddleY();
        const middleX = this.getMiddleX();
@ -62,22 +73,26 @@ export class HelpCameraSettingsScene extends Phaser.Scene {
            ease: 'Power3',
            overflow: 'scroll'
        });
+
+        this.dirty = true;
    }

    private closeHelpCameraSettingsOpened(): void{
        const middleX = this.getMiddleX();
-        const helpCameraSettingsInfo = this.helpCameraSettingsElement.getChildByID('helpCameraSettings') as HTMLParagraphElement;
+        /*const helpCameraSettingsInfo = this.helpCameraSettingsElement.getChildByID('helpCameraSettings') as HTMLParagraphElement;
        helpCameraSettingsInfo.innerText = '';
-        helpCameraSettingsInfo.style.display = 'none';
+        helpCameraSettingsInfo.style.display = 'none';*/
        this.helpCameraSettingsOpened = false;
        this.tweens.add({
            targets: this.helpCameraSettingsElement,
-            y: -400,
+            y: -1000,
            x: middleX,
            duration: 1000,
            ease: 'Power3',
            overflow: 'scroll'
        });
+
+        this.dirty = true;
    }

    private revealMenusAfterInit(menuElement: Phaser.GameObjects.DOMElement, rootDomId: string) {
@ -89,18 +104,11 @@ export class HelpCameraSettingsScene extends Phaser.Scene {
    }

    update(time: number, delta: number): void {
-        const middleX = this.getMiddleX();
-        const middleY = this.getMiddleY();
-        this.tweens.add({
-            targets: this.helpCameraSettingsElement,
-            x: middleX,
-            y: middleY,
-            duration: 1000,
-            ease: 'Power3'
-        });
+        this.dirty = false;
    }

    public onResize(ev: UIEvent): void {
+        super.onResize(ev);
        const middleX = this.getMiddleX();
        const middleY = this.getMiddleY();
        this.tweens.add({
@ -113,24 +121,27 @@ export class HelpCameraSettingsScene extends Phaser.Scene {
    }

    private getMiddleX() : number{
-        return (this.game.renderer.width / RESOLUTION) -  
+        return (this.scale.width / 2) -
        (
            this.helpCameraSettingsElement
            && this.helpCameraSettingsElement.node
            && this.helpCameraSettingsElement.node.getBoundingClientRect().width > 0
-            ? (this.helpCameraSettingsElement.node.getBoundingClientRect().width / 4)
+            ? (this.helpCameraSettingsElement.node.getBoundingClientRect().width / (2 * this.scale.zoom))
            : (400 / 2)
        );
    }

    private getMiddleY() : number{
-        const middleY = ((window.innerHeight) - (
+        const middleY = ((this.scale.height) - (
            (this.helpCameraSettingsElement
            && this.helpCameraSettingsElement.node
            && this.helpCameraSettingsElement.node.getBoundingClientRect().height > 0
-                ? this.helpCameraSettingsElement.node.getBoundingClientRect().height : 400 /*FIXME to use a const will be injected in HTMLElement*/)*2)) / 2;
-        return (middleY > 0 ? middleY / RESOLUTION : 0);
+                ? this.helpCameraSettingsElement.node.getBoundingClientRect().height : 400 /*FIXME to use a const will be injected in HTMLElement*/)/this.scale.zoom)) / 2;
+        return (middleY > 0 ? middleY : 0);
    }

+    public isDirty(): boolean {
+        return this.dirty;
+    }
 }

--- a/front/src/Phaser/Menu/MenuScene.ts
+++ b/front/src/Phaser/Menu/MenuScene.ts
@ -192,11 +192,11 @@ export class MenuScene extends Phaser.Scene {
            }
        });

-        let middleY = (window.innerHeight / 3) - (257);
+        let middleY = this.scale.height / 2 - 392/2;
        if(middleY < 0){
            middleY = 0;
        }
-        let middleX = (window.innerWidth / 3) - 298;
+        let middleX = this.scale.width / 2 - 457/2;
        if(middleX < 0){
            middleX = 0;
        }
@ -236,11 +236,11 @@ export class MenuScene extends Phaser.Scene {

        this.gameShareOpened = true;

-        let middleY = (window.innerHeight / 3) - (257);
+        let middleY = this.scale.height / 2 - 85;
        if(middleY < 0){
            middleY = 0;
        }
-        let middleX = (window.innerWidth / 3) - 298;
+        let middleX = this.scale.width / 2 - 200;
        if(middleX < 0){
            middleX = 0;
        }
@ -350,4 +350,8 @@ export class MenuScene extends Phaser.Scene {
            }
        }
    }
+
+    public isDirty(): boolean {
+        return false;
+    }
 }
--- a/front/src/Phaser/Player/Player.ts
+++ b/front/src/Phaser/Player/Player.ts
@ -7,6 +7,7 @@ export const hasMovedEventName = "hasMoved";
 export interface CurrentGamerInterface extends Character{
    moveUser(delta: number) : void;
    say(text : string) : void;
+    isMoving(): boolean;
 }

 export class Player extends Character implements CurrentGamerInterface {
@ -83,4 +84,8 @@ export class Player extends Character implements CurrentGamerInterface {
        }
        this.wasMoving = moving;
    }
+
+    public isMoving(): boolean {
+        return this.wasMoving;
+    }
 }
--- a/front/src/Phaser/Reconnecting/ErrorScene.ts
+++ b/front/src/Phaser/Reconnecting/ErrorScene.ts
@ -52,7 +52,7 @@ export class ErrorScene extends Phaser.Scene {

        this.subTitleField = new TextField(this, this.game.renderer.width / 2, this.game.renderer.height / 2 + 24, this.subTitle);

-        this.messageField = this.add.text(this.game.renderer.width / 2, this.game.renderer.height / 2 + 38, this.message, {
+        this.messageField = this.add.text(this.game.renderer.width / 2, this.game.renderer.height / 2 + 48, this.message, {
            fontFamily: 'Georgia, "Goudy Bookletter 1911", Times, serif',
            fontSize: '10px'
        });
--- a/front/src/Phaser/Services/HdpiManager.ts
+++ b/front/src/Phaser/Services/HdpiManager.ts
@ -0,0 +1,105 @@
+import ScaleManager = Phaser.Scale.ScaleManager;
+
+interface Size {
+    width: number;
+    height: number;
+}
+
+export class HdpiManager {
+    private _zoomModifier: number = 1;
+
+    /**
+     *
+     * @param minRecommendedGamePixelsNumber The minimum number of pixels we want to display "by default" to the user
+     * @param absoluteMinPixelNumber The very minimum of game pixels to display. Below, we forbid zooming more
+     */
+    public constructor(private minRecommendedGamePixelsNumber: number, private absoluteMinPixelNumber: number) {
+    }
+
+    /**
+     * Returns the optimal size in "game pixels" based on the screen size in "real pixels".
+     *
+     * Note: the function is returning the optimal size in "game pixels" in the "game" property,
+     * but also recommends resizing the "real" pixel screen size of the canvas.
+     * The proposed new real size is a few pixels bigger than the real size available (if the size is not a multiple of the pixel size) and should overflow.
+     *
+     * @param realPixelScreenSize
+     */
+    public getOptimalGameSize(realPixelScreenSize: Size): { game: Size, real: Size } {
+        const realPixelNumber = realPixelScreenSize.width * realPixelScreenSize.height;
+        // If the screen has not a definition small enough to match the minimum number of pixels we want to display,
+        // let's make the canvas the size of the screen (in real pixels)
+        if (realPixelNumber <= this.minRecommendedGamePixelsNumber) {
+            return {
+                game: realPixelScreenSize,
+                real: realPixelScreenSize
+            };
+        }
+
+        let i = 1;
+
+        while (realPixelNumber > this.minRecommendedGamePixelsNumber * i * i) {
+            i++;
+        }
+
+        // Has the canvas more pixels than the screen? This is forbidden
+        if ((i - 1) * this._zoomModifier < 1) {
+            // Let's reset the zoom modifier (WARNING this is a SIDE EFFECT in a getter)
+            this._zoomModifier = 1 / (i - 1);
+
+            return {
+                game: {
+                    width: realPixelScreenSize.width,
+                    height: realPixelScreenSize.height,
+                },
+                real: {
+                    width: realPixelScreenSize.width,
+                    height: realPixelScreenSize.height,
+                }
+            }
+        }
+
+        const gameWidth = Math.ceil(realPixelScreenSize.width / (i - 1) / this._zoomModifier);
+        const gameHeight = Math.ceil(realPixelScreenSize.height / (i - 1) / this._zoomModifier);
+
+        // Let's ensure we display a minimum of pixels, even if crazily zoomed in.
+        if (gameWidth * gameHeight < this.absoluteMinPixelNumber) {
+            const minGameHeight = Math.sqrt(this.absoluteMinPixelNumber * realPixelScreenSize.height / realPixelScreenSize.width);
+            const minGameWidth = Math.sqrt(this.absoluteMinPixelNumber * realPixelScreenSize.width / realPixelScreenSize.height);
+
+            // Let's reset the zoom modifier (WARNING this is a SIDE EFFECT in a getter)
+            this._zoomModifier = realPixelScreenSize.width / minGameWidth / (i - 1);
+
+            return {
+                game: {
+                    width: minGameWidth,
+                    height: minGameHeight,
+                },
+                real: {
+                    width: realPixelScreenSize.width,
+                    height: realPixelScreenSize.height,
+                }
+            }
+
+        }
+
+        return {
+            game: {
+                width: gameWidth,
+                height: gameHeight,
+            },
+            real: {
+                width: Math.ceil(realPixelScreenSize.width / (i - 1)) * (i - 1),
+                height: Math.ceil(realPixelScreenSize.height / (i - 1)) * (i - 1),
+            }
+        }
+    }
+
+    public get zoomModifier(): number {
+        return this._zoomModifier;
+    }
+
+    public set zoomModifier(zoomModifier: number) {
+        this._zoomModifier = zoomModifier;
+    }
+}
--- a/front/src/Phaser/Services/WaScaleManager.ts
+++ b/front/src/Phaser/Services/WaScaleManager.ts
@ -0,0 +1,47 @@
+import {HdpiManager} from "./HdpiManager";
+import ScaleManager = Phaser.Scale.ScaleManager;
+import {coWebsiteManager} from "../../WebRtc/CoWebsiteManager";
+
+
+class WaScaleManager {
+    private hdpiManager: HdpiManager;
+    private scaleManager!: ScaleManager;
+
+    public constructor(private minGamePixelsNumber: number, private absoluteMinPixelNumber: number) {
+        this.hdpiManager = new HdpiManager(minGamePixelsNumber, absoluteMinPixelNumber);
+    }
+
+    public setScaleManager(scaleManager: ScaleManager) {
+        this.scaleManager = scaleManager;
+    }
+
+    public applyNewSize() {
+        const {width, height} = coWebsiteManager.getGameSize();
+
+        let devicePixelRatio = 1;
+        if (window.devicePixelRatio) {
+            devicePixelRatio = window.devicePixelRatio;
+        }
+
+        const { game: gameSize, real: realSize } = this.hdpiManager.getOptimalGameSize({width: width * devicePixelRatio, height: height * devicePixelRatio});
+
+        this.scaleManager.setZoom(realSize.width / gameSize.width / devicePixelRatio);
+        this.scaleManager.resize(gameSize.width, gameSize.height);
+
+        // Override bug in canvas resizing in Phaser. Let's resize the canvas ourselves
+        const style = this.scaleManager.canvas.style;
+        style.width = Math.ceil(realSize.width / devicePixelRatio) + 'px';
+        style.height = Math.ceil(realSize.height / devicePixelRatio) + 'px';
+    }
+
+    public get zoomModifier(): number {
+        return this.hdpiManager.zoomModifier;
+    }
+
+    public set zoomModifier(zoomModifier: number) {
+        this.hdpiManager.zoomModifier = zoomModifier;
+        this.applyNewSize();
+    }
+}
+
+export const waScaleManager = new WaScaleManager(640*480, 196*196);
--- a/front/src/Phaser/Shaders/OutlinePipeline.ts
+++ b/front/src/Phaser/Shaders/OutlinePipeline.ts
@ -1,4 +1,4 @@
-export class OutlinePipeline extends Phaser.Renderer.WebGL.Pipelines.TextureTintPipeline {
+export class OutlinePipeline extends Phaser.Renderer.WebGL.Pipelines.MultiPipeline {

    // the unique id of this pipeline
    public static readonly KEY = 'Outline';
--- a/front/src/Phaser/UserInput/PinchManager.ts
+++ b/front/src/Phaser/UserInput/PinchManager.ts
@ -1,22 +1,41 @@
 import {Pinch} from "phaser3-rex-plugins/plugins/gestures.js";
+import {waScaleManager} from "../Services/WaScaleManager";
+import {GameScene} from "../Game/GameScene";

 export class PinchManager {
    private scene: Phaser.Scene;
    private pinch!: any; // eslint-disable-line
-    
+
    constructor(scene: Phaser.Scene) {
        this.scene = scene;
        this.pinch = new Pinch(scene);
+        this.pinch.setDragThreshold(10);
+
+        // The "pinch.scaleFactor" value is very sensitive and causes the screen to flicker.
+        // We are smoothing its value with previous values to prevent the flicking.
+        let smoothPinch = 1;
+
+        this.pinch.on('pinchstart', () => {
+            smoothPinch = 1;
+        });
+

        this.pinch.on('pinch', (pinch:any) => { // eslint-disable-line
-            let newZoom = this.scene.cameras.main.zoom * pinch.scaleFactor;
-            if (newZoom < 0.25) {
-                newZoom = 0.25;
-            } else if(newZoom > 2) {
-                newZoom = 2;
+            if (pinch.scaleFactor > 1.2 || pinch.scaleFactor < 0.8) {
+                // Pinch too fast! Probably a bad measure.
+                return;
+            }
+
+            smoothPinch = 3/5*smoothPinch + 2/5*pinch.scaleFactor;
+            if (this.scene instanceof GameScene) {
+                this.scene.zoomByFactor(smoothPinch);
+            } else {
+                waScaleManager.zoomModifier *= smoothPinch;
            }
-            this.scene.cameras.main.setZoom(newZoom);
        });
    }
-    
-}
+
+    destroy() {
+        this.pinch.removeAllListeners();
+    }
+}
--- a/front/src/Phaser/UserInput/UserInputManager.ts
+++ b/front/src/Phaser/UserInput/UserInputManager.ts
@ -54,11 +54,12 @@ export class UserInputManager {
        this.Scene = Scene;
        this.isInputDisabled = false;
        this.initKeyBoardEvent();
+        this.initMouseWheel();
        if (touchScreenManager.supportTouchScreen) {
            this.initVirtualJoystick();
        }
    }
-    
+
    initVirtualJoystick() {
        this.joystick = new MobileJoystick(this.Scene);
        this.joystick.on("update", () => {
@ -170,4 +171,14 @@ export class UserInputManager {
    removeSpaceEventListner(callback : Function){
        this.Scene.input.keyboard.removeListener('keyup-SPACE', callback);
    }
+
+    destroy(): void {
+        this.joystick.destroy();
+    }
+
+    private initMouseWheel() {
+        this.Scene.input.on('wheel', (pointer: unknown, gameObjects: unknown, deltaX: number, deltaY: number, deltaZ: number) => {
+            this.Scene.zoomByFactor(1 - deltaY / 53 * 0.1);
+        });
+    }
 }
--- a/front/src/WebRtc/LayoutManager.ts
+++ b/front/src/WebRtc/LayoutManager.ts
@ -346,7 +346,7 @@ class LayoutManager {
        userInputManager.addSpaceEventListner(callBack);
    }

-    public removeActionButton(id: string, userInputManager: UserInputManager){
+    public removeActionButton(id: string, userInputManager?: UserInputManager){
        //delete previous element
        const previousDiv = this.actionButtonInformation.get(id);
        if(previousDiv){
@ -354,10 +354,45 @@ class LayoutManager {
            this.actionButtonInformation.delete(id);
        }
        const previousEventCallback = this.actionButtonTrigger.get(id);
-        if(previousEventCallback){
+        if(previousEventCallback && userInputManager){
            userInputManager.removeSpaceEventListner(previousEventCallback);
        }
    }
+
+    public addInformation(id: string, text: string,  callBack?: Function, userInputManager?: UserInputManager){
+        //delete previous element
+        for ( const [key, value] of this.actionButtonInformation ) {
+            this.removeActionButton(key, userInputManager);
+        }
+
+        //create div and text html component
+        const p = document.createElement('p');
+        p.classList.add('action-body');
+        p.innerText = text;
+
+        const div = document.createElement('div');
+        div.classList.add('action');
+        div.classList.add(id);
+        div.id = id;
+        div.appendChild(p);
+
+        this.actionButtonInformation.set(id, div);
+
+        const mainContainer = HtmlUtils.getElementByIdOrFail<HTMLDivElement>('main-container');
+        mainContainer.appendChild(div);
+        //add trigger action
+        if(callBack){
+            div.onpointerdown = () => {
+                callBack();
+                this.removeActionButton(id, userInputManager);
+            };
+        }
+
+        //remove it after 10 sec
+        setTimeout(() => {
+            this.removeActionButton(id, userInputManager);
+        }, 10000)
+    }
 }

 const layoutManager = new LayoutManager();
--- a/front/src/WebRtc/MediaManager.ts
+++ b/front/src/WebRtc/MediaManager.ts
@ -4,6 +4,8 @@ import {discussionManager, SendMessageCallback} from "./DiscussionManager";
 import {UserInputManager} from "../Phaser/UserInput/UserInputManager";
 import {localUserStore} from "../Connexion/LocalUserStore";
 import {UserSimplePeerInterface} from "./SimplePeer";
+import {SoundMeter} from "../Phaser/Components/SoundMeter";
+
 declare const navigator:any; // eslint-disable-line @typescript-eslint/no-explicit-any

 let videoConstraint: boolean|MediaTrackConstraints = {
@ -26,6 +28,7 @@ export type StartScreenSharingCallback = (media: MediaStream) => void;
 export type StopScreenSharingCallback = (media: MediaStream) => void;
 export type ReportCallback = (message: string) => void;
 export type ShowReportCallBack = (userId: string, userName: string|undefined) => void;
+export type HelpCameraSettingsCallBack = () => void;

 // TODO: Split MediaManager in 2 classes: MediaManagerUI (in charge of HTML) and MediaManager (singleton in charge of the camera only)
 export class MediaManager {
@ -40,6 +43,7 @@ export class MediaManager {
    microphoneClose: HTMLImageElement;
    microphone: HTMLImageElement;
    webrtcInAudio: HTMLAudioElement;
+    mySoundMeterElement: HTMLDivElement;
    private webrtcOutAudio: HTMLAudioElement;
    constraintsMedia : MediaStreamConstraints = {
        audio: audioConstraint,
@ -49,6 +53,8 @@ export class MediaManager {
    startScreenSharingCallBacks : Set<StartScreenSharingCallback> = new Set<StartScreenSharingCallback>();
    stopScreenSharingCallBacks : Set<StopScreenSharingCallback> = new Set<StopScreenSharingCallback>();
    showReportModalCallBacks : Set<ShowReportCallBack> = new Set<ShowReportCallBack>();
+    helpCameraSettingsCallBacks : Set<HelpCameraSettingsCallBack> = new Set<HelpCameraSettingsCallBack>();
+    
    private microphoneBtn: HTMLDivElement;
    private cinemaBtn: HTMLDivElement;
    private monitorBtn: HTMLDivElement;
@ -63,6 +69,12 @@ export class MediaManager {

    private triggerCloseJistiFrame : Map<String, Function> = new Map<String, Function>();

+    private userInputManager?: UserInputManager;
+
+    private mySoundMeter?: SoundMeter|null;
+    private soundMeters: Map<string, SoundMeter> = new Map<string, SoundMeter>();
+    private soundMeterElements: Map<string, HTMLDivElement> = new Map<string, HTMLDivElement>();
+
    constructor() {

        this.myCamVideo = HtmlUtils.getElementByIdOrFail<HTMLVideoElement>('myCamVideo');
@ -121,10 +133,16 @@ export class MediaManager {
        this.pingCameraStatus();

        this.checkActiveUser(); //todo: desactivated in case of bug
+
+        this.mySoundMeterElement = (HtmlUtils.getElementByIdOrFail('mySoundMeter'));
+        this.mySoundMeterElement.childNodes.forEach((value: ChildNode, index) => {
+            this.mySoundMeterElement.children.item(index)?.classList.remove('active');
+        });
    }

-    public setLastUpdateScene(){
+    public updateScene(){
        this.lastUpdateScene = new Date();
+        this.updateSoudMeter();
    }

    public blurCamera() {
@ -225,6 +243,10 @@ export class MediaManager {
        }).catch((err) => {
            console.error(err);
            this.disableCameraStyle();
+
+            layoutManager.addInformation('warning', 'Camera access denied. Click here and check navigators permissions.', () => {
+                this.showHelpCameraSettingsCallBack();
+            }, this.userInputManager);
        });
    }

@ -253,6 +275,10 @@ export class MediaManager {
        }).catch((err) => {
            console.error(err);
            this.disableMicrophoneStyle();
+
+            layoutManager.addInformation('warning', 'Microphone access denied. Click here and check navigators permissions.', () => {
+                this.showHelpCameraSettingsCallBack();
+            }, this.userInputManager);
        });
    }

@ -324,6 +350,10 @@ export class MediaManager {
            this.monitorClose.style.display = "block";
            this.monitor.style.display = "none";
            this.monitorBtn.classList.remove("enabled");
+
+            layoutManager.addInformation('warning', 'Screen sharing access denied. Click here and check navigators permissions.', () => {
+                this.showHelpCameraSettingsCallBack();
+            }, this.userInputManager);
        });

    }
@ -402,13 +432,14 @@ export class MediaManager {
            }
        }

-        return this.getLocalStream().catch(() => {
-            console.info('Error get camera, trying with video option at null');
+        return this.getLocalStream().catch((err) => {
+            console.info('Error get camera, trying with video option at null =>', err);
            this.disableCameraStyle();
            return this.getLocalStream().then((stream : MediaStream) => {
                this.hasCamera = false;
                return stream;
            }).catch((err) => {
+                this.disableMicrophoneStyle();
                console.info("error get media ", this.constraintsMedia.video, this.constraintsMedia.audio, err);
                throw err;
            });
@ -425,6 +456,13 @@ export class MediaManager {
        return navigator.mediaDevices.getUserMedia(this.constraintsMedia).then((stream : MediaStream) => {
            this.localStream = stream;
            this.myCamVideo.srcObject = this.localStream;
+
+            //init sound meter
+            this.mySoundMeter = null;
+            if(this.constraintsMedia.audio){
+                this.mySoundMeter = new SoundMeter();
+                this.mySoundMeter.connectToSource(stream, new AudioContext());
+            }
            return stream;
        }).catch((err: Error) => {
            throw err;
@ -451,6 +489,7 @@ export class MediaManager {
                track.stop();
            }
        }
+        this.mySoundMeter?.stop();
    }

    setCamera(id: string): Promise<MediaStream> {
@ -496,6 +535,13 @@ export class MediaManager {
                </button>
                <video id="${userId}" autoplay></video>
                <img src="resources/logos/blockSign.svg" id="blocking-${userId}" class="block-logo">
+                <div id="soundMeter-${userId}" class="sound-progress">
+                    <span></span>
+                    <span></span>
+                    <span></span>
+                    <span></span>
+                    <span></span>
+                </div>
            </div>
        `;

@ -585,6 +631,12 @@ export class MediaManager {
            throw `Unable to find video for ${userId}`;
        }
        remoteVideo.srcObject = stream;
+
+        //sound metter
+        const soundMeter = new SoundMeter();
+        soundMeter.connectToSource(stream, new AudioContext());
+        this.soundMeters.set(userId, soundMeter);
+        this.soundMeterElements.set(userId, HtmlUtils.getElementByIdOrFail<HTMLImageElement>('soundMeter-'+userId));
    }
    addStreamRemoteScreenSharing(userId: string, stream : MediaStream){
        // In the case of screen sharing (going both ways), we may need to create the HTML element if it does not exist yet
@ -600,6 +652,10 @@ export class MediaManager {
        layoutManager.remove(userId);
        this.remoteVideo.delete(userId);

+        this.soundMeters.get(userId)?.stop();
+        this.soundMeters.delete(userId);
+        this.soundMeterElements.delete(userId);
+
        //permit to remove user in discussion part
        this.removeParticipant(userId);
    }
@ -717,6 +773,7 @@ export class MediaManager {
    }

    public setUserInputManager(userInputManager : UserInputManager){
+        this.userInputManager = userInputManager;
        discussionManager.setUserInputManager(userInputManager);
    }
    //check if user is active
@ -739,6 +796,57 @@ export class MediaManager {
    public setShowReportModalCallBacks(callback: ShowReportCallBack){
        this.showReportModalCallBacks.add(callback);
    }
+
+    public setHelpCameraSettingsCallBack(callback: HelpCameraSettingsCallBack){
+        this.helpCameraSettingsCallBacks.add(callback);
+    }
+
+    private showHelpCameraSettingsCallBack(){
+        for(const callBack of this.helpCameraSettingsCallBacks){
+            callBack();
+        }
+    }
+
+    updateSoudMeter(){
+        try{
+            const volume = parseInt(((this.mySoundMeter ? this.mySoundMeter.getVolume() : 0) / 10).toFixed(0));
+            this.setVolumeSoundMeter(volume, this.mySoundMeterElement);
+            
+            for(const indexUserId of this.soundMeters.keys()){
+                const soundMeter = this.soundMeters.get(indexUserId);
+                const soundMeterElement = this.soundMeterElements.get(indexUserId);
+                if(!soundMeter || !soundMeterElement){
+                    return;
+                }
+                const volumeByUser = parseInt((soundMeter.getVolume() / 10).toFixed(0));
+                this.setVolumeSoundMeter(volumeByUser, soundMeterElement);
+            }
+        }catch(err){
+            //console.error(err);
+        }
+    }
+
+    private setVolumeSoundMeter(volume: number, element: HTMLDivElement){
+        if(volume <= 0 && !element.classList.contains('active')){
+            return;
+        }
+        element.classList.remove('active');
+        if(volume <= 0){
+            return;
+        }
+        element.classList.add('active');
+        element.childNodes.forEach((value: ChildNode, index) => {
+            const elementChildre = element.children.item(index);
+            if(!elementChildre){
+                return;
+            }
+            elementChildre.classList.remove('active');
+            if((index +1) > volume){
+                return;
+            }
+            elementChildre.classList.add('active');
+        });
+    }
 }

 export const mediaManager = new MediaManager();
--- a/front/src/WebRtc/ScreenSharingPeer.ts
+++ b/front/src/WebRtc/ScreenSharingPeer.ts
@ -22,7 +22,7 @@ export class ScreenSharingPeer extends Peer {
    constructor(user: UserSimplePeerInterface, initiator: boolean, private connection: RoomConnection) {
        super({
            initiator: initiator ? initiator : false,
-            reconnectTimer: 10000,
+            //reconnectTimer: 10000,
            config: {
                iceServers: [
                    {
--- a/front/src/WebRtc/SimplePeer.ts
+++ b/front/src/WebRtc/SimplePeer.ts
@ -82,15 +82,11 @@ export class SimplePeer {
        });

        mediaManager.showGameOverlay();
-        mediaManager.getCamera().then(() => {
-
+        mediaManager.getCamera().finally(() => {
            //receive message start
            this.Connection.receiveWebrtcStart((message: UserSimplePeerInterface) => {
                this.receiveWebrtcStart(message);
            });
-
-        }).catch((err) => {
-            console.error("err", err);
        });

        this.Connection.disconnectMessage((data: WebRtcDisconnectMessageInterface): void => {
--- a/front/src/WebRtc/VideoPeer.ts
+++ b/front/src/WebRtc/VideoPeer.ts
@ -28,7 +28,7 @@ export class VideoPeer extends Peer {
    constructor(public user: UserSimplePeerInterface, initiator: boolean, private connection: RoomConnection) {
        super({
            initiator: initiator ? initiator : false,
-            reconnectTimer: 10000,
+            //reconnectTimer: 10000,
            config: {
                iceServers: [
                    {
--- a/front/src/iframe_api.ts
+++ b/front/src/iframe_api.ts
@ -1,14 +1,14 @@
-import {ChatEvent, isChatEvent} from "./Api/Events/ChatEvent";
-import {isIframeEventWrapper} from "./Api/Events/IframeEvent";
-import {isUserInputChatEvent, UserInputChatEvent} from "./Api/Events/UserInputChatEvent";
-import {Subject} from "rxjs";
-import {EnterLeaveEvent, isEnterLeaveEvent} from "./Api/Events/EnterLeaveEvent";
-import {OpenPopupEvent} from "./Api/Events/OpenPopupEvent";
-import {isButtonClickedEvent} from "./Api/Events/ButtonClickedEvent";
-import {ClosePopupEvent} from "./Api/Events/ClosePopupEvent";
-import {OpenTabEvent} from "./Api/Events/OpenTabEvent";
-import {GoToPageEvent} from "./Api/Events/GoToPageEvent";
-import {OpenCoWebSiteEvent} from "./Api/Events/OpenCoWebSiteEvent";
+import { ChatEvent } from "./Api/Events/ChatEvent";
+import { isIframeResponseEventWrapper } from "./Api/Events/IframeEvent";
+import { isUserInputChatEvent, UserInputChatEvent } from "./Api/Events/UserInputChatEvent";
+import { Subject } from "rxjs";
+import { EnterLeaveEvent, isEnterLeaveEvent } from "./Api/Events/EnterLeaveEvent";
+import { OpenPopupEvent } from "./Api/Events/OpenPopupEvent";
+import { isButtonClickedEvent } from "./Api/Events/ButtonClickedEvent";
+import { ClosePopupEvent } from "./Api/Events/ClosePopupEvent";
+import { OpenTabEvent } from "./Api/Events/OpenTabEvent";
+import { GoToPageEvent } from "./Api/Events/GoToPageEvent";
+import { OpenCoWebSiteEvent } from "./Api/Events/OpenCoWebSiteEvent";
 import { LoadPageEvent } from './Api/Events/LoadPageEvent';

 interface WorkAdventureApi {
@ -22,10 +22,10 @@ interface WorkAdventureApi {
    exitSceneTo(url : string): void;
    openCoWebSite(url : string): void;
    closeCoWebSite(): void;
-    disablePlayerControl() : void;
-    restorePlayerControl() : void;
-    displayBubble() : void;
-    removeBubble() : void;
+    disablePlayerControl(): void;
+    restorePlayerControl(): void;
+    displayBubble(): void;
+    removeBubble(): void;
 }

 declare global {
@ -52,7 +52,7 @@ interface ButtonDescriptor {
    /**
     * The type of the button. Can be one of "normal", "primary", "success", "warning", "error", "disabled"
     */
-    className?: "normal"|"primary"|"success"|"warning"|"error"|"disabled",
+    className?: "normal" | "primary" | "success" | "warning" | "error" | "disabled",
    /**
     * Callback called if the button is pressed
     */
@ -90,38 +90,38 @@ window.WA = {
            } as ChatEvent
        }, '*');
    },
-    disablePlayerControl() : void {
-        window.parent.postMessage({'type' : 'disablePlayerControl'},'*');
+    disablePlayerControl(): void {
+        window.parent.postMessage({ 'type': 'disablePlayerControl' }, '*');
    },

-    restorePlayerControl() : void {
-        window.parent.postMessage({'type' : 'restorePlayerControl'},'*');
+    restorePlayerControl(): void {
+        window.parent.postMessage({ 'type': 'restorePlayerControl' }, '*');
    },

-    displayBubble() : void {
-        window.parent.postMessage({'type' : 'displayBubble'},'*');
+    displayBubble(): void {
+        window.parent.postMessage({ 'type': 'displayBubble' }, '*');
    },

-    removeBubble() : void {
-        window.parent.postMessage({'type' : 'removeBubble'},'*');
+    removeBubble(): void {
+        window.parent.postMessage({ 'type': 'removeBubble' }, '*');
    },

-    openTab(url : string) : void{
+    openTab(url: string): void {
        window.parent.postMessage({
-            "type" : 'openTab',
-            "data" : {
+            "type": 'openTab',
+            "data": {
                url
            } as OpenTabEvent
-            },'*');
+        }, '*');
    },

-    goToPage(url : string) : void{
+    goToPage(url: string): void {
        window.parent.postMessage({
-            "type" : 'goToPage',
-            "data" : {
+            "type": 'goToPage',
+            "data": {
                url
            } as GoToPageEvent
-            },'*');
+        }, '*');
    },

    exitSceneTo(url : string) : void{
@ -139,13 +139,13 @@ window.WA = {
            "data" : {
                url
            } as OpenCoWebSiteEvent
-            },'*');
+        }, '*');
    },

-    closeCoWebSite() : void{
+    closeCoWebSite(): void {
        window.parent.postMessage({
-            "type" : 'closeCoWebSite'
-            },'*');
+            "type": 'closeCoWebSite'
+        }, '*');
    },

    openPopup(targetObject: string, message: string, buttons: ButtonDescriptor[]): Popup {
@ -216,9 +216,9 @@ window.addEventListener('message', message => {

    const payload = message.data;

-    console.log(payload);
+    console.debug(payload);

-    if (isIframeEventWrapper(payload)) {
+    if (isIframeResponseEventWrapper(payload)) {
        const payloadData = payload.data;
        if (payload.type === 'userInputChat' && isUserInputChatEvent(payloadData)) {
            userInputChatStream.next(payloadData);
@ -230,7 +230,7 @@ window.addEventListener('message', message => {
            const callback = popupCallbacks.get(payloadData.popupId)?.get(payloadData.buttonId);
            const popup = popups.get(payloadData.popupId);
            if (popup === undefined) {
-                throw new Error('Could not find popup with ID "'+payloadData.popupId+'"');
+                throw new Error('Could not find popup with ID "' + payloadData.popupId + '"');
            }
            if (callback) {
                callback(popup);
--- a/front/src/index.ts
+++ b/front/src/index.ts
@ -2,7 +2,7 @@ import 'phaser';
 import GameConfig = Phaser.Types.Core.GameConfig;
 import "../dist/resources/style/index.scss";

-import {DEBUG_MODE, isMobile, RESOLUTION} from "./Enum/EnvironmentVariable";
+import {DEBUG_MODE, isMobile} from "./Enum/EnvironmentVariable";
 import {LoginScene} from "./Phaser/Login/LoginScene";
 import {ReconnectingScene} from "./Phaser/Reconnecting/ReconnectingScene";
 import {SelectCharacterScene} from "./Phaser/Login/SelectCharacterScene";
@ -18,6 +18,9 @@ import {localUserStore} from "./Connexion/LocalUserStore";
 import {ErrorScene} from "./Phaser/Reconnecting/ErrorScene";
 import {iframeListener} from "./Api/IframeListener";
 import { SelectCharacterMobileScene } from './Phaser/Login/SelectCharacterMobileScene';
+import {HdpiManager} from "./Phaser/Services/HdpiManager";
+import {waScaleManager} from "./Phaser/Services/WaScaleManager";
+import {Game} from "./Phaser/Game/Game";

 const {width, height} = coWebsiteManager.getGameSize();

@ -68,23 +71,31 @@ switch (phaserMode) {
        throw new Error('phaserMode parameter must be one of "auto", "canvas" or "webgl"');
 }

+const hdpiManager = new HdpiManager(640*480, 196*196);
+const { game: gameSize, real: realSize } = hdpiManager.getOptimalGameSize({width, height});
+
 const config: GameConfig = {
    type: mode,
    title: "WorkAdventure",
-    width: width / RESOLUTION,
-    height: height / RESOLUTION,
-    parent: "game",
-    scene: [EntryScene, 
+    scale: {
+        parent: "game",
+        width: gameSize.width,
+        height: gameSize.height,
+        zoom: realSize.width / gameSize.width,
+        autoRound: true,
+        resizeInterval: 999999999999
+    },
+    scene: [EntryScene,
        LoginScene,
        isMobile() ? SelectCharacterMobileScene : SelectCharacterScene,
-        SelectCompanionScene, 
-        EnableCameraScene, 
-        ReconnectingScene, 
-        ErrorScene, 
-        CustomizeScene, 
-        MenuScene, 
+        SelectCompanionScene,
+        EnableCameraScene,
+        ReconnectingScene,
+        ErrorScene,
+        CustomizeScene,
+        MenuScene,
        HelpCameraSettingsScene],
-    zoom: RESOLUTION,
+    //resolution: window.devicePixelRatio / 2,
    fps: fps,
    dom: {
        createContainer: true
@ -100,6 +111,8 @@ const config: GameConfig = {
            debug: DEBUG_MODE,
        }
    },
+    // Instruct systems with 2 GPU to choose the low power one. We don't need that extra power and we want to save battery
+    powerPreference: "low-power",
    callbacks: {
        postBoot: game => {
            // Commented out to try to fix MacOS bug
@ -111,12 +124,15 @@ const config: GameConfig = {
    }
 };

-const game = new Phaser.Game(config);
+//const game = new Phaser.Game(config);
+const game = new Game(config);
+
+waScaleManager.setScaleManager(game.scale);

 window.addEventListener('resize', function (event) {
    coWebsiteManager.resetStyle();
-    const {width, height} = coWebsiteManager.getGameSize();
-    game.scale.resize(width / RESOLUTION, height / RESOLUTION);
+
+    waScaleManager.applyNewSize();

    // Let's trigger the onResize method of any active scene that is a ResizableScene
    for (const scene of game.scene.getScenes(true)) {
@ -127,8 +143,7 @@ window.addEventListener('resize', function (event) {
 });

 coWebsiteManager.onResize.subscribe(() => {
-    const {width, height} = coWebsiteManager.getGameSize();
-    game.scale.resize(width / RESOLUTION, height / RESOLUTION);
+    waScaleManager.applyNewSize();
 });

 iframeListener.init();
--- a/front/src/rex-plugins.d.ts
+++ b/front/src/rex-plugins.d.ts
@ -4,9 +4,9 @@ declare module 'phaser3-rex-plugins/plugins/virtualjoystick.js' {
    export default content;
 }
 declare module 'phaser3-rex-plugins/plugins/gestures-plugin.js' {
-    const content: any; // eslint-disable-line 
+    const content: any; // eslint-disable-line
    export default content;
 }
 declare module 'phaser3-rex-plugins/plugins/gestures.js' {
    export const Pinch: any; // eslint-disable-line
-}
+}
--- a/front/tests/Phaser/Connexion/LocalUserTest.ts
+++ b/front/tests/Phaser/Connexion/LocalUserTest.ts
@ -19,9 +19,6 @@ describe("isUserNameValid()", () => {
    it("should not validate spaces", () => {
        expect(isUserNameValid(' ')).toBe(false);
    });
-    it("should not validate numbers", () => {
-        expect(isUserNameValid('a12')).toBe(false);
-    });
    it("should not validate special characters", () => {
        expect(isUserNameValid('a&-')).toBe(false);
    });
@ -42,4 +39,4 @@ describe("areCharacterLayersValid()", () => {
    it("should not validate empty strings", () => {
        expect(areCharacterLayersValid(['', 'male1'])).toBe(false);
    });
-});
+});
--- a/front/tests/Phaser/Services/HdpiManagerTest.ts
+++ b/front/tests/Phaser/Services/HdpiManagerTest.ts
@ -0,0 +1,55 @@
+import "jasmine";
+import {HdpiManager} from "../../../src/Phaser/Services/HdpiManager";
+
+describe("Test HdpiManager", () => {
+    it("should match screen size if size is too small.", () => {
+        const hdpiManager = new HdpiManager(640*480, 64*64);
+
+        const result = hdpiManager.getOptimalGameSize({ width: 320, height: 200 });
+        expect(result.game.width).toEqual(320);
+        expect(result.game.height).toEqual(200);
+        expect(result.real.width).toEqual(320);
+        expect(result.real.height).toEqual(200);
+    });
+
+    it("should match multiple just above.", () => {
+        const hdpiManager = new HdpiManager(640*480, 64*64);
+
+        let result = hdpiManager.getOptimalGameSize({ width: 960, height: 600 });
+        expect(result.game.width).toEqual(960);
+        expect(result.game.height).toEqual(600);
+
+        result = hdpiManager.getOptimalGameSize({ width: 640 * 2 + 50, height: 480 * 2 + 50 });
+        expect(result.game.width).toEqual(Math.ceil((640 * 2 + 50) / 2));
+        expect(result.game.height).toEqual((480 * 2 + 50) / 2);
+
+        result = hdpiManager.getOptimalGameSize({ width: 640 * 3 + 50, height: 480 * 3 + 50 });
+        expect(result.game.width).toEqual(Math.ceil((640 * 3 + 50) / 3));
+        expect(result.game.height).toEqual(Math.ceil((480 * 3 + 50) / 3));
+        expect(result.real.width).toEqual(result.game.width * 3);
+        expect(result.real.height).toEqual(result.game.height * 3);
+    });
+
+    it("should not zoom in too much.", () => {
+        const hdpiManager = new HdpiManager(640*480, 64*64);
+
+        hdpiManager.zoomModifier = 11;
+
+        const result = hdpiManager.getOptimalGameSize({ width: 640, height: 640 });
+        expect(result.game.width).toEqual(64);
+        expect(result.game.height).toEqual(64);
+        expect(hdpiManager.zoomModifier).toEqual(10);
+
+    });
+
+    it("should not zoom out too much.", () => {
+        const hdpiManager = new HdpiManager(640*480, 64*64);
+
+        hdpiManager.zoomModifier = 1/10;
+
+        const result = hdpiManager.getOptimalGameSize({ width: 1280, height: 768 });
+        expect(result.game.width).toEqual(1280);
+        expect(result.game.height).toEqual(768);
+        expect(hdpiManager.zoomModifier).toEqual(1);
+    });
+});
--- a/front/yarn.lock
+++ b/front/yarn.lock
--- a/maps/Tuto/tutoV3.json
+++ b/maps/Tuto/tutoV3.json
@ -24,7 +24,7 @@
                {
                 "name":"exitUrl",
                 "type":"string",
-                 "value":"\/@\/tcm\/workadventure\/floor0"
+                 "value":"\/@\/tcm\/workadventure\/wa-village"
                }],
         "type":"tilelayer",
         "visible":true,
--- a/maps/Village/Teacher
+++ b/maps/Village/Teacher
--- a/maps/Village/Village.json
+++ b/maps/Village/Village.json
--- a/maps/Village/logo-WA.png
+++ b/maps/Village/logo-WA.png
--- a/maps/Village/sol_intérieur.png
+++ b/maps/Village/sol_intérieur.png
--- a/maps/Village/sol_intérieur.png
+++ b/maps/Village/sol_intérieur.png
--- a/maps/Village/su1
+++ b/maps/Village/su1
--- a/maps/Village/su1
+++ b/maps/Village/su1
--- a/maps/Village/su2
+++ b/maps/Village/su2
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su3
+++ b/maps/Village/su3
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/su4
+++ b/maps/Village/su4
--- a/maps/Village/tileset1-repositioning.png
+++ b/maps/Village/tileset1-repositioning.png
--- a/maps/Village/tileset1.png
+++ b/maps/Village/tileset1.png
--- a/maps/tests/autoresize.json
+++ b/maps/tests/autoresize.json
@ -0,0 +1,82 @@
+{ "compressionlevel":-1,
+ "height":25,
+ "infinite":false,
+ "layers":[
+        {
+         "data":[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+         "height":25,
+         "id":1,
+         "name":"floor",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":25,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+         "height":25,
+         "id":2,
+         "name":"start",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":25,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "draworder":"topdown",
+         "id":3,
+         "name":"floorLayer",
+         "objects":[
+                {
+                 "height":114.5,
+                 "id":3,
+                 "name":"",
+                 "rotation":0,
+                 "text":
+                    {
+                     "fontfamily":"Sans Serif",
+                     "pixelsize":11,
+                     "text":"Test:\nOpen your browser to the maximum size of your screen. Resize the browser window just smaller than the blue \"carpet\".\nResult:\nThe viewport is zoomed out x2 so that you can still see the \"carpet\"",
+                     "wrap":true
+                    },
+                 "type":"",
+                 "visible":true,
+                 "width":252.4375,
+                 "x":162.78125,
+                 "y":129.5
+                }],
+         "opacity":1,
+         "type":"objectgroup",
+         "visible":true,
+         "x":0,
+         "y":0
+        }],
+ "nextlayerid":8,
+ "nextobjectid":5,
+ "orientation":"orthogonal",
+ "renderorder":"right-down",
+ "tiledversion":"2021.03.23",
+ "tileheight":32,
+ "tilesets":[
+        {
+         "columns":11,
+         "firstgid":1,
+         "image":"tileset1.png",
+         "imageheight":352,
+         "imagewidth":352,
+         "margin":0,
+         "name":"tileset1",
+         "spacing":0,
+         "tilecount":121,
+         "tileheight":32,
+         "tilewidth":32
+        }],
+ "tilewidth":32,
+ "type":"map",
+ "version":1.5,
+ "width":25
+}
--- a/maps/tests/energy.json
+++ b/maps/tests/energy.json
@ -0,0 +1,82 @@
+{ "compressionlevel":-1,
+ "height":10,
+ "infinite":false,
+ "layers":[
+        {
+         "data":[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+         "height":10,
+         "id":1,
+         "name":"floor",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+         "height":10,
+         "id":2,
+         "name":"start",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "draworder":"topdown",
+         "id":3,
+         "name":"floorLayer",
+         "objects":[
+                {
+                 "height":261.73266830836,
+                 "id":3,
+                 "name":"",
+                 "rotation":0,
+                 "text":
+                    {
+                     "fontfamily":"Sans Serif",
+                     "pixelsize":11,
+                     "text":"Test:\nOpen this page in Chrome.\nOpen Chrome Task Manager (Shift - Esc)\n\nResult:\nThe WorkAdventure tab should take about 10% of CPU.\nThe GPU should almost consume nothing (~4%)",
+                     "wrap":true
+                    },
+                 "type":"",
+                 "visible":true,
+                 "width":252.4375,
+                 "x":46.5894222943362,
+                 "y":34.2876372135732
+                }],
+         "opacity":1,
+         "type":"objectgroup",
+         "visible":true,
+         "x":0,
+         "y":0
+        }],
+ "nextlayerid":8,
+ "nextobjectid":5,
+ "orientation":"orthogonal",
+ "renderorder":"right-down",
+ "tiledversion":"2021.03.23",
+ "tileheight":32,
+ "tilesets":[
+        {
+         "columns":11,
+         "firstgid":1,
+         "image":"tileset1.png",
+         "imageheight":352,
+         "imagewidth":352,
+         "margin":0,
+         "name":"tileset1",
+         "spacing":0,
+         "tilecount":121,
+         "tileheight":32,
+         "tilewidth":32
+        }],
+ "tilewidth":32,
+ "type":"map",
+ "version":1.5,
+ "width":10
+}
--- a/maps/tests/index.html
+++ b/maps/tests/index.html
@ -50,6 +50,38 @@
                    <a href="#" class="testLink" data-testmap="goToPage.json" target="_blank">Testing scripting API with a script</a>
                </td>
            </tr>
+            <tr>
+                <td>
+                    <input type="radio" name="test-autoresize"> Success <input type="radio" name="test-autoresize"> Failure <input type="radio" name="test-autoresize" checked> Pending
+                </td>
+                <td>
+                    <a href="#" class="testLink" data-testmap="autoresize.json" target="_blank">Testing auto-zoom of viewport</a>
+                </td>
+            </tr>
+            <tr>
+                <td>
+                    <input type="radio" name="test-mouse-wheel"> Success <input type="radio" name="test-mouse-wheel"> Failure <input type="radio" name="test-mouse-wheel" checked> Pending
+                </td>
+                <td>
+                    <a href="#" class="testLink" data-testmap="mousewheel.json" target="_blank">Testing zoom via mouse wheel</a>
+                </td>
+            </tr>
+            <tr>
+                <td>
+                    <input type="radio" name="test-mobile"> Success <input type="radio" name="test-mobile"> Failure <input type="radio" name="test-mobile" checked> Pending
+                </td>
+                <td>
+                    <a href="#" class="testLink" data-testmap="mobile.json" target="_blank">Testing movement on mobile</a>
+                </td>
+            </tr>
+            <tr>
+                <td>
+                    <input type="radio" name="test-energy"> Success <input type="radio" name="test-energy"> Failure <input type="radio" name="test-energy" checked> Pending
+                </td>
+                <td>
+                    <a href="#" class="testLink" data-testmap="energy.json" target="_blank">Test energy consumption</a>
+                </td>
+            </tr>
        </table>

        <script>
--- a/maps/tests/mobile.json
+++ b/maps/tests/mobile.json
@ -0,0 +1,82 @@
+{ "compressionlevel":-1,
+ "height":10,
+ "infinite":false,
+ "layers":[
+        {
+         "data":[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+         "height":10,
+         "id":1,
+         "name":"floor",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+         "height":10,
+         "id":2,
+         "name":"start",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "draworder":"topdown",
+         "id":3,
+         "name":"floorLayer",
+         "objects":[
+                {
+                 "height":281.232647439376,
+                 "id":3,
+                 "name":"",
+                 "rotation":0,
+                 "text":
+                    {
+                     "fontfamily":"Sans Serif",
+                     "pixelsize":11,
+                     "text":"Test:\nOpen the page on a mobile device (or set Chrome in mobile mode)\n\nResult:\nBy default, the zoom level is not too zoomed in nor out (zoom level gives you the same visibility you typically have on desktop)\n\nYou can move using a virtual joystick\n\nYou can zoom using the \"pinch\" gesture\n\nWhen you zoom in or out, the size of the virtual joystick stays the same (about the size of your thumb)\n\nWhen you \"pinch\", your character does not move\n\nChanging phone orientation works",
+                     "wrap":true
+                    },
+                 "type":"",
+                 "visible":true,
+                 "width":252.4375,
+                 "x":46.5894222943362,
+                 "y":34.2876372135732
+                }],
+         "opacity":1,
+         "type":"objectgroup",
+         "visible":true,
+         "x":0,
+         "y":0
+        }],
+ "nextlayerid":8,
+ "nextobjectid":5,
+ "orientation":"orthogonal",
+ "renderorder":"right-down",
+ "tiledversion":"2021.03.23",
+ "tileheight":32,
+ "tilesets":[
+        {
+         "columns":11,
+         "firstgid":1,
+         "image":"tileset1.png",
+         "imageheight":352,
+         "imagewidth":352,
+         "margin":0,
+         "name":"tileset1",
+         "spacing":0,
+         "tilecount":121,
+         "tileheight":32,
+         "tilewidth":32
+        }],
+ "tilewidth":32,
+ "type":"map",
+ "version":1.5,
+ "width":10
+}
--- a/maps/tests/mousewheel.json
+++ b/maps/tests/mousewheel.json
@ -0,0 +1,82 @@
+{ "compressionlevel":-1,
+ "height":10,
+ "infinite":false,
+ "layers":[
+        {
+         "data":[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+         "height":10,
+         "id":1,
+         "name":"floor",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "data":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
+         "height":10,
+         "id":2,
+         "name":"start",
+         "opacity":1,
+         "type":"tilelayer",
+         "visible":true,
+         "width":10,
+         "x":0,
+         "y":0
+        }, 
+        {
+         "draworder":"topdown",
+         "id":3,
+         "name":"floorLayer",
+         "objects":[
+                {
+                 "height":261.73266830836,
+                 "id":3,
+                 "name":"",
+                 "rotation":0,
+                 "text":
+                    {
+                     "fontfamily":"Sans Serif",
+                     "pixelsize":11,
+                     "text":"Test:\nUse your mouse wheel\nResult:\nThe canvas is zooming in or out\n\nTest:\nZoom out to the maximum\nResult:\nThe pixel size is the canvas = the pixel size on your monitor\n\nTest:\nZoom in to the maximum\nResult:\nYou see an area slightly larger than your character (with your character at the center if you are not standing on a border of the map)",
+                     "wrap":true
+                    },
+                 "type":"",
+                 "visible":true,
+                 "width":252.4375,
+                 "x":46.5894222943362,
+                 "y":34.2876372135732
+                }],
+         "opacity":1,
+         "type":"objectgroup",
+         "visible":true,
+         "x":0,
+         "y":0
+        }],
+ "nextlayerid":8,
+ "nextobjectid":5,
+ "orientation":"orthogonal",
+ "renderorder":"right-down",
+ "tiledversion":"2021.03.23",
+ "tileheight":32,
+ "tilesets":[
+        {
+         "columns":11,
+         "firstgid":1,
+         "image":"tileset1.png",
+         "imageheight":352,
+         "imagewidth":352,
+         "margin":0,
+         "name":"tileset1",
+         "spacing":0,
+         "tilecount":121,
+         "tileheight":32,
+         "tilewidth":32
+        }],
+ "tilewidth":32,
+ "type":"map",
+ "version":1.5,
+ "width":10
+}
--- a/messages/protos/messages.proto
+++ b/messages/protos/messages.proto
@ -218,6 +218,10 @@ message RefreshRoomMessage{
 message WorldFullMessage{
 }

+message WorldConnexionMessage{
+  string message = 2;
+}
+
 message BanUserMessage{
  string type = 1;
  string message = 2;
@ -242,6 +246,7 @@ message ServerToClientMessage {
    WorldFullWarningMessage worldFullWarningMessage = 15;
    WorldFullMessage worldFullMessage = 16;
    RefreshRoomMessage refreshRoomMessage = 17; 
+    WorldConnexionMessage worldConnexionMessage = 18;
  }
 }

--- a/pusher/src/Controller/IoSocketController.ts
+++ b/pusher/src/Controller/IoSocketController.ts
@ -117,15 +117,15 @@ export class IoSocketController {
                        upgradeAborted.aborted = true;
                    });

-                    try {
-                        const url = req.getUrl();
-                        const query = parse(req.getQuery());
-                        const websocketKey = req.getHeader('sec-websocket-key');
-                        const websocketProtocol = req.getHeader('sec-websocket-protocol');
-                        const websocketExtensions = req.getHeader('sec-websocket-extensions');
-                        const IPAddress = req.getHeader('x-forwarded-for');
+                    const url = req.getUrl();
+                    const query = parse(req.getQuery());
+                    const websocketKey = req.getHeader('sec-websocket-key');
+                    const websocketProtocol = req.getHeader('sec-websocket-protocol');
+                    const websocketExtensions = req.getHeader('sec-websocket-extensions');
+                    const IPAddress = req.getHeader('x-forwarded-for');

-                        const roomId = query.roomId;
+                    const roomId = query.roomId;
+                    try {
                        if (typeof roomId !== 'string') {
                            throw new Error('Undefined room ID: ');
                        }
@ -183,14 +183,15 @@ export class IoSocketController {
                                        console.warn('Cannot find user with uuid "'+userUuid+'". Performing an anonymous login instead.');
                                    } else if(err?.response?.status == 403) {
                                        // If we get an HTTP 404, the world is full. We need to broadcast a special error to the client.
-                                        // we finish immediatly the upgrade then we will close the socket as soon as it starts opening. 
-                                        res.upgrade({
+                                        // we finish immediately the upgrade then we will close the socket as soon as it starts opening.
+                                        return res.upgrade({
                                            rejected: true,
+                                            message: err?.response?.data.message,
+                                            status: err?.response?.status
                                        }, websocketKey,
                                        websocketProtocol,
                                        websocketExtensions,
                                        context);
-                                        return;
                                    }else{
                                        throw err;
                                    }
@ -199,15 +200,15 @@ export class IoSocketController {
                                memberTags = userData.tags;
                                memberTextures = userData.textures;
                                if (!room.public && room.policyType === GameRoomPolicyTypes.USE_TAGS_POLICY && (userData.anonymous === true || !room.canAccess(memberTags))) {
-                                    throw new Error('No correct tags')
+                                    throw new Error('Insufficient privileges to access this room')
                                }
                                if (!room.public && room.policyType === GameRoomPolicyTypes.MEMBERS_ONLY_POLICY && userData.anonymous === true) {
-                                    throw new Error('No correct member')
+                                    throw new Error('Use the login URL to connect')
                                }
                            } catch (e) {
                                console.log('access not granted for user '+userUuid+' and room '+roomId);
                                console.error(e);
-                                throw new Error('Client cannot acces this ressource.')
+                                throw new Error('User cannot access this world')
                            }
                        }

@ -254,23 +255,35 @@ export class IoSocketController {
                            context);

                    } catch (e) {
-                        if (e instanceof Error) {
+                        /*if (e instanceof Error) {
                            console.log(e.message);
                            res.writeStatus("401 Unauthorized").end(e.message);
                        } else {
                            res.writeStatus("500 Internal Server Error").end('An error occurred');
-                        }
-                        return;
+                        }*/
+                        return res.upgrade({
+                            rejected: true,
+                            message: e.message ? e.message : '500 Internal Server Error'
+                        }, websocketKey,
+                        websocketProtocol,
+                        websocketExtensions,
+                        context);
                    }
                })();
            },
            /* Handlers */
            open: (ws) => {
                if(ws.rejected === true) {
-                    socketManager.emitWorldFullMessage(ws);
+                    //FIX ME to use status code
+                    if(ws.message === 'World is full'){
+                        socketManager.emitWorldFullMessage(ws);
+                    }else{
+                        socketManager.emitConnexionErrorMessage(ws, ws.message as string);
+                    }
                    ws.close();
+                    return;
                }
-                
+
                // Let's join the room
                const client = this.initClient(ws);
                socketManager.handleJoinRoom(client);
--- a/pusher/src/Services/SocketManager.ts
+++ b/pusher/src/Services/SocketManager.ts
@ -20,6 +20,7 @@ import {
    CharacterLayerMessage,
    PusherToBackMessage,
    WorldFullMessage,
+    WorldConnexionMessage,
    AdminPusherToBackMessage,
    ServerToAdminClientMessage,
    UserJoinedRoomMessage, UserLeftRoomMessage, AdminMessage, BanMessage, RefreshRoomMessage
@ -560,6 +561,16 @@ export class SocketManager implements ZoneEventListener {
        client.send(serverToClientMessage.serializeBinary().buffer, true);
    }

+    public emitConnexionErrorMessage(client: WebSocket, message: string) {
+        const errorMessage = new WorldConnexionMessage();
+        errorMessage.setMessage(message);
+
+        const serverToClientMessage = new ServerToClientMessage();
+        serverToClientMessage.setWorldconnexionmessage(errorMessage);
+
+        client.send(serverToClientMessage.serializeBinary().buffer, true);
+    }
+
    private refreshRoomData(roomId: string, versionNumber: number): void {
        const room = this.rooms.get(roomId);
        //this function is run for every users connected to the room, so we need to make sure the room wasn't already refreshed.