Merge pull request #898 from thecodingmachine/touchZoom

FEATURE: add the ability to zoom in and out using touch screen

front/src/Phaser/Components/MobileJoystick.ts

@@ -0,0 +1,35 @@
+import VirtualJoystick from 'phaser3-rex-plugins/plugins/virtualjoystick.js';
+
+const outOfScreenX = -1000;
+const outOfScreenY = -1000;
+
+
+//the assets were found here: https://hannemann.itch.io/virtual-joystick-pack-free
+export const joystickBaseKey = 'joystickBase';
+export const joystickBaseImg = 'resources/objects/joystickSplitted.png';
+export const joystickThumbKey = 'joystickThumb';
+export const joystickThumbImg = 'resources/objects/smallHandleFilledGrey.png';
+
+export class MobileJoystick extends VirtualJoystick {
+    
+    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),
+            enable: true,
+            dir: "8dir",
+        });
+
+        this.scene.input.on('pointerdown', (pointer: { x: number; y: number; }) => {
+            this.x = pointer.x;
+            this.y = pointer.y;
+        });
+        this.scene.input.on('pointerup', () => {
+            this.x = outOfScreenX;
+            this.y = outOfScreenY;
+        });
+    }
+}

front/src/Phaser/Game/GameScene.ts

@@ -58,10 +58,6 @@ import {Room} from "../../Connexion/Room";
 import {jitsiFactory} from "../../WebRtc/JitsiFactory";
 import {urlManager} from "../../Url/UrlManager";
 import {audioManager} from "../../WebRtc/AudioManager";
-import {IVirtualJoystick} from "../../types";
-const {
-  default: VirtualJoystick,
-} = require("phaser3-rex-plugins/plugins/virtualjoystick.js");
 import {PresentationModeIcon} from "../Components/PresentationModeIcon";
 import {ChatModeIcon} from "../Components/ChatModeIcon";
 import {OpenChatIcon, openChatIconName} from "../Components/OpenChatIcon";
@@ -81,6 +77,9 @@ import DOMElement = Phaser.GameObjects.DOMElement;
 import {Subscription} from "rxjs";
 import {worldFullMessageStream} from "../../Connexion/WorldFullMessageStream";
 import { lazyLoadCompanionResource } from "../Companion/CompanionTexturesLoadingManager";
+import {touchScreenManager} from "../../Touch/TouchScreenManager";
+import {PinchManager} from "../UserInput/PinchManager";
+import {joystickBaseImg, joystickBaseKey, joystickThumbImg, joystickThumbKey} from "../Components/MobileJoystick";
 
 export interface GameSceneInitInterface {
     initPosition: PointInterface|null,
@@ -175,7 +174,6 @@ 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;
-    public virtualJoystick!: IVirtualJoystick;
 
     constructor(private room: Room, MapUrlFile: string, customKey?: string|undefined) {
         super({
@@ -199,6 +197,7 @@ export class GameScene extends ResizableScene implements CenterListener {
 
     //hook preload scene
     preload(): void {
+        addLoader(this);
         const localUser = localUserStore.getLocalUser();
         const textures = localUser?.textures;
         if (textures) {
@@ -208,6 +207,10 @@ export class GameScene extends ResizableScene implements CenterListener {
         }
 
         this.load.image(openChatIconName, 'resources/objects/talk.png');
+        if (touchScreenManager.supportTouchScreen) {
+            this.load.image(joystickBaseKey, joystickBaseImg);
+            this.load.image(joystickThumbKey, joystickThumbImg);
+        }
         this.load.on(FILE_LOAD_ERROR, (file: {src: string}) => {
             // If we happen to be in HTTP and we are trying to load a URL in HTTPS only... (this happens only in dev environments)
             if (window.location.protocol === 'http:' && file.src === this.MapUrlFile && file.src.startsWith('http:') && this.originalMapUrl === undefined) {
@@ -254,8 +257,6 @@ 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');
-
-        addLoader(this);
     }
 
     // FIXME: we need to put a "unknown" instead of a "any" and validate the structure of the JSON we are receiving.
@@ -358,6 +359,10 @@ export class GameScene extends ResizableScene implements CenterListener {
         urlManager.pushRoomIdToUrl(this.room);
         this.startLayerName = urlManager.getStartLayerNameFromUrl();
 
+        if (touchScreenManager.supportTouchScreen) {
+            new PinchManager(this);
+        }
+
         this.messageSubscription = worldFullMessageStream.stream.subscribe((message) => this.showWorldFullError())
 
         const playerName = gameManager.getPlayerName();
@@ -411,26 +416,10 @@ export class GameScene extends ResizableScene implements CenterListener {
         //initialise list of other player
         this.MapPlayers = this.physics.add.group({immovable: true});
 
-        this.virtualJoystick = new VirtualJoystick(this, {
+        
-            x: this.game.renderer.width / 2,
-            y: this.game.renderer.height / 2,
-            radius: 20,
-            base: this.add.circle(0, 0, 20),
-            thumb: this.add.circle(0, 0, 10),
-            enable: true,
-            dir: "8dir",
-        });
-        this.virtualJoystick.visible = true;
         //create input to move
         mediaManager.setUserInputManager(this.userInputManager);
-        this.userInputManager = new UserInputManager(this, this.virtualJoystick);
+        this.userInputManager = new UserInputManager(this);
-
-        // Listener event to reposition virtual joystick
-        // whatever place you click in game area
-        this.input.on('pointerdown', (pointer: { x: number; y: number; }) => {
-            this.virtualJoystick.x = pointer.x;
-            this.virtualJoystick.y = pointer.y;
-        });
 
         if (localUserStore.getFullscreen()) {
             document.querySelector('body')?.requestFullscreen();

front/src/Phaser/Login/EnableCameraScene.ts

@@ -7,6 +7,8 @@ import {RESOLUTION} from "../../Enum/EnvironmentVariable";
 import {SoundMeter} from "../Components/SoundMeter";
 import {SoundMeterSprite} from "../Components/SoundMeterSprite";
 import {HtmlUtils} from "../../WebRtc/HtmlUtils";
+import {touchScreenManager} from "../../Touch/TouchScreenManager";
+import {PinchManager} from "../UserInput/PinchManager";
 
 export const EnableCameraSceneName = "EnableCameraScene";
 enum LoginTextures {
@@ -54,6 +56,10 @@ export class EnableCameraScene extends Phaser.Scene {
     }
 
     create() {
+        if (touchScreenManager.supportTouchScreen) {
+            new PinchManager(this);
+        }
+        
         this.textField = new TextField(this, this.game.renderer.width / 2, 20, 'Turn on your camera and microphone');
 
         this.pressReturnField = new TextField(this, this.game.renderer.width / 2, this.game.renderer.height - 30, 'Touch here\n\n or \n\nPress enter to start');

front/src/Phaser/Login/LoginScene.ts

@@ -7,6 +7,8 @@ import {ResizableScene} from "./ResizableScene";
 import {isUserNameValid, maxUserNameLength} from "../../Connexion/LocalUser";
 import { localUserStore } from "../../Connexion/LocalUserStore";
 import Rectangle = Phaser.GameObjects.Rectangle;
+import {touchScreenManager} from "../../Touch/TouchScreenManager";
+import {PinchManager} from "../UserInput/PinchManager";
 
 //todo: put this constants in a dedicated file
 export const LoginSceneName = "LoginScene";
@@ -39,6 +41,9 @@ export class LoginScene extends ResizableScene {
     }
 
     create() {
+        if (touchScreenManager.supportTouchScreen) {
+            new PinchManager(this);
+        }
 
         this.nameInput = new TextInput(this, this.game.renderer.width / 2, 70, maxUserNameLength, this.name,(text: string) => {
             this.name = text;

front/src/Phaser/Login/SelectCharacterScene.ts

@@ -4,13 +4,14 @@ import Image = Phaser.GameObjects.Image;
 import Rectangle = Phaser.GameObjects.Rectangle;
 import {EnableCameraSceneName} from "./EnableCameraScene";
 import {CustomizeSceneName} from "./CustomizeScene";
-import {ResizableScene} from "./ResizableScene";
 import {localUserStore} from "../../Connexion/LocalUserStore";
-import {loadAllDefaultModels, loadCustomTexture} from "../Entity/PlayerTexturesLoadingManager";
+import {loadAllDefaultModels} from "../Entity/PlayerTexturesLoadingManager";
 import {addLoader} from "../Components/Loader";
 import {BodyResourceDescriptionInterface} from "../Entity/PlayerTextures";
 import {AbstractCharacterScene} from "./AbstractCharacterScene";
 import {areCharacterLayersValid} from "../../Connexion/LocalUser";
+import {touchScreenManager} from "../../Touch/TouchScreenManager";
+import {PinchManager} from "../UserInput/PinchManager";
 
 
 //todo: put this constants in a dedicated file
@@ -66,6 +67,9 @@ export class SelectCharacterScene extends AbstractCharacterScene {
     }
 
     create() {
+        if (touchScreenManager.supportTouchScreen) {
+            new PinchManager(this);
+        }
         this.textField = new TextField(this, this.game.renderer.width / 2, 50, 'Select your character');
         this.pressReturnField = new TextField(
             this,

front/src/Phaser/Login/SelectCompanionScene.ts

@@ -8,6 +8,8 @@ import { EnableCameraSceneName } from "./EnableCameraScene";
 import { localUserStore } from "../../Connexion/LocalUserStore";
 import { CompanionResourceDescriptionInterface } from "../Companion/CompanionTextures";
 import { getAllCompanionResources } from "../Companion/CompanionTexturesLoadingManager";
+import {touchScreenManager} from "../../Touch/TouchScreenManager";
+import {PinchManager} from "../UserInput/PinchManager";
 
 export const SelectCompanionSceneName = "SelectCompanionScene";
 
@@ -54,6 +56,10 @@ export class SelectCompanionScene extends ResizableScene {
     }
 
     create() {
+        if (touchScreenManager.supportTouchScreen) {
+            new PinchManager(this);
+        }
+        
         this.textField = new TextField(this, this.game.renderer.width / 2, 50, 'Select your companion');
 
         const confirmTouchAreaY = 115 + 32 * Math.ceil(this.companionModels.length / this.nbCharactersPerRow);

front/src/Phaser/UserInput/PinchManager.ts

@@ -0,0 +1,22 @@
+import {Pinch} from "phaser3-rex-plugins/plugins/gestures.js";
+
+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.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;
+            }
+            this.scene.cameras.main.setZoom(newZoom);
+        });
+    }
+    
+}

front/src/Phaser/UserInput/UserInputManager.ts

@@ -1,8 +1,7 @@
-import { Direction, IVirtualJoystick } from "../../types";
+import { Direction } from "../../types";
 import {GameScene} from "../Game/GameScene";
-const {
+import {touchScreenManager} from "../../Touch/TouchScreenManager";
-  default: VirtualJoystick,
+import {MobileJoystick} from "../Components/MobileJoystick";
-} = require("phaser3-rex-plugins/plugins/virtualjoystick.js");
 
 interface UserInputManagerDatum {
     keyInstance: Phaser.Input.Keyboard.Key;
@@ -20,6 +19,7 @@ export enum UserInputEvent {
     JoystickMove,
 }
 
+
 //we cannot use a map structure so we have to create a replacment
 export class ActiveEventList {
     private eventMap : Map<UserInputEvent, boolean> = new Map<UserInputEvent, boolean>();
@@ -44,17 +44,23 @@ export class UserInputManager {
     private Scene: GameScene;
     private isInputDisabled : boolean;
 
-    private joystick : IVirtualJoystick;
+    private joystick!: MobileJoystick;
     private joystickEvents = new ActiveEventList();
     private joystickForceThreshold = 60;
     private joystickForceAccuX = 0;
     private joystickForceAccuY = 0;
 
-    constructor(Scene: GameScene, virtualJoystick: IVirtualJoystick) {
+    constructor(Scene: GameScene) {
         this.Scene = Scene;
         this.isInputDisabled = false;
         this.initKeyBoardEvent();
-        this.joystick = virtualJoystick;
+        if (touchScreenManager.supportTouchScreen) {
+            this.initVirtualJoystick();
+        }
+    }
+    
+    initVirtualJoystick() {
+        this.joystick = new MobileJoystick(this.Scene);
         this.joystick.on("update", () => {
             this.joystickForceAccuX = this.joystick.forceX ? this.joystickForceAccuX : 0;
             this.joystickForceAccuY = this.joystick.forceY ? this.joystickForceAccuY : 0;
@@ -105,6 +111,7 @@ export class UserInputManager {
         this.Scene.input.keyboard.removeAllListeners();
     }
 
+    //todo: should we also disable the joystick?
     disableControls(){
         this.Scene.input.keyboard.removeAllKeys();
         this.isInputDisabled = true;

front/src/Touch/TouchScreenManager.ts

@@ -0,0 +1,16 @@
+
+class TouchScreenManager {
+    
+    readonly supportTouchScreen:boolean;
+    
+    constructor() {
+        this.supportTouchScreen = this.detectTouchscreen();
+    }
+
+    //found here: https://stackoverflow.com/questions/4817029/whats-the-best-way-to-detect-a-touch-screen-device-using-javascript#4819886
+    detectTouchscreen(): boolean {
+        return (('ontouchstart' in window) || (navigator.maxTouchPoints > 0) || (navigator.msMaxTouchPoints > 0));
+    }
+}
+
+export const touchScreenManager = new TouchScreenManager();

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, JITSI_URL, RESOLUTION} from "./Enum/EnvironmentVariable";
+import {DEBUG_MODE, RESOLUTION} from "./Enum/EnvironmentVariable";
 import {LoginScene} from "./Phaser/Login/LoginScene";
 import {ReconnectingScene} from "./Phaser/Reconnecting/ReconnectingScene";
 import {SelectCharacterScene} from "./Phaser/Login/SelectCharacterScene";
@@ -17,7 +17,6 @@ import {HelpCameraSettingsScene} from "./Phaser/Menu/HelpCameraSettingsScene";
 import {localUserStore} from "./Connexion/LocalUserStore";
 import {ErrorScene} from "./Phaser/Reconnecting/ErrorScene";
 import {iframeListener} from "./Api/IframeListener";
-import {discussionManager} from "./WebRtc/DiscussionManager";
 
 const {width, height} = coWebsiteManager.getGameSize();
 

front/src/rex-plugins.d.ts

@@ -0,0 +1,12 @@
+
+declare module 'phaser3-rex-plugins/plugins/virtualjoystick.js' {
+    const content: any; // eslint-disable-line
+    export default content;
+}
+declare module 'phaser3-rex-plugins/plugins/gestures-plugin.js' {
+    const content: any; // eslint-disable-line 
+    export default content;
+}
+declare module 'phaser3-rex-plugins/plugins/gestures.js' {
+    export const Pinch: any; // eslint-disable-line
+}