diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93940b0c..3117ea31 100644
--- 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
 
diff --git a/front/src/Enum/EnvironmentVariable.ts b/front/src/Enum/EnvironmentVariable.ts
index ca1bd6d2..7dd3a175 100644
--- 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;
 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,
diff --git a/front/src/Phaser/Game/GameScene.ts b/front/src/Phaser/Game/GameScene.ts
index 4500779f..5525bfc7 100644
--- 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,
diff --git a/front/src/Phaser/Login/CustomizeScene.ts b/front/src/Phaser/Login/CustomizeScene.ts
index 673ba20a..dda83923 100644
--- 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";
 
@@ -52,8 +51,8 @@ export class CustomizeScene extends AbstractCharacterScene {
     }
 
     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');
@@ -113,6 +112,8 @@ export class CustomizeScene extends AbstractCharacterScene {
             this.moveLayers();
             this.updateSelectedLayer();
         }
+
+        this.onResize();
     }
 
     private moveCursorHorizontally(index: number): void {
@@ -257,16 +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 {
@@ -275,26 +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;
diff --git a/front/src/Phaser/Login/EnableCameraScene.ts b/front/src/Phaser/Login/EnableCameraScene.ts
index 1af0c092..065973b6 100644
--- 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, ZOOM_LEVEL} 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;
@@ -37,7 +36,6 @@ 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;
 
@@ -63,8 +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;
@@ -133,8 +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 {
@@ -212,10 +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) {
@@ -228,18 +225,18 @@ 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;
@@ -257,20 +254,12 @@ export class EnableCameraScene extends Phaser.Scene {
         this.soundMeterSprite.setVolume(this.soundMeter.getVolume());
         mediaManager.updateScene();
 
-        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();
@@ -290,15 +279,4 @@ export class EnableCameraScene extends Phaser.Scene {
         }
         this.updateWebCamName();
     }
-
-    private getMiddleX() : number{
-        return (this.scale.width / 2) -
-        (
-            this.enableCameraSceneElement
-            && this.enableCameraSceneElement.node
-            && this.enableCameraSceneElement.node.getBoundingClientRect().width > 0
-            ? (this.enableCameraSceneElement.node.getBoundingClientRect().width / 2 / this.scale.zoom)
-            : (300 / RESOLUTION)
-        );
-    }
 }
diff --git a/front/src/Phaser/Login/LoginScene.ts b/front/src/Phaser/Login/LoginScene.ts
index 31045480..435592f2 100644
--- 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);
     }
 }
diff --git a/front/src/Phaser/Login/ResizableScene.ts b/front/src/Phaser/Login/ResizableScene.ts
index 82123e2b..39e2d74b 100644
--- 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)
+            );
+    }
 }
diff --git a/front/src/Phaser/Login/SelectCharacterScene.ts b/front/src/Phaser/Login/SelectCharacterScene.ts
index daa35028..0366dde5 100644
--- a/front/src/Phaser/Login/SelectCharacterScene.ts
+++ b/front/src/Phaser/Login/SelectCharacterScene.ts
@@ -52,8 +52,8 @@ export class SelectCharacterScene extends AbstractCharacterScene {
 
     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);
     }
 }
diff --git a/front/src/Phaser/Login/SelectCompanionScene.ts b/front/src/Phaser/Login/SelectCompanionScene.ts
index 1191415b..4ef378d6 100644
--- 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";
 
@@ -43,8 +42,8 @@ export class SelectCompanionScene extends ResizableScene {
 
     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');
@@ -87,13 +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 {
@@ -136,13 +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 {
@@ -238,15 +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
-        );
-    }
 }
diff --git a/front/src/Phaser/Menu/HelpCameraSettingsScene.ts b/front/src/Phaser/Menu/HelpCameraSettingsScene.ts
index f7dd5c2a..cda6adc7 100644
--- 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 {ResizableScene} from "../Login/ResizableScene";
 
 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 ResizableScene {
     private helpCameraSettingsElement!: Phaser.GameObjects.DOMElement;
     private helpCameraSettingsOpened: boolean = false;
 
@@ -126,23 +126,23 @@ 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);
     }
 
 }
diff --git a/front/src/index.ts b/front/src/index.ts
index 0bdf3aa2..72f01e9f 100644
--- 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";