added scene changes

src/DataTypes/Map.ts

@@ -1,6 +1,6 @@
 import Collection from "./Collection";
 
-export default class Map<T> implements Collection{
+export default class Map<T> implements Collection {
 	private map: Record<string, T>;
 
 	constructor(){
@@ -30,4 +30,8 @@ export default class Map<T> implements Collection{
 	forEach(func: Function): void {
 		Object.keys(this.map).forEach(key => func(key));
 	}
+
+	clear(): void {
+		this.forEach((key: string) => delete this.map[key]);
+	}
 }

src/MainScene.ts

@@ -7,6 +7,7 @@ import Vec2 from "./DataTypes/Vec2";
 import UIElement from "./Nodes/UIElement";
 import Button from "./Nodes/UIElements/Button";
 import Layer from "./Scene/Layer";
+import SecondScene from "./SecondScene";
 
 export default class MainScene extends Scene {
 
@@ -40,7 +41,8 @@ export default class MainScene extends Scene {
         backgroundTilemap.getLayer().setAlpha(0.5);
 
         // Add the music and start playing it on a loop
-        this.add.audio("level_music").play(true);
+        let music = this.add.audio("level_music");
+        music.play(true);
 
         // Add the tilemap
         this.add.tilemap("platformer", OrthogonalTilemap);
@@ -114,10 +116,19 @@ export default class MainScene extends Scene {
         let resumeButton = this.add.uiElement(Button, pauseLayer);
         resumeButton.setSize(100, 50);
         resumeButton.setText("Resume");
-        resumeButton.setPosition(400, 200);
+        resumeButton.setPosition(360, 150);
         resumeButton.onClick = () => {
             this.layers.forEach((layer: Layer) => layer.setPaused(false));
             pauseLayer.disable();
         }
+
+        let switchButton = this.add.uiElement(Button, pauseLayer);
+        switchButton.setSize(140, 50);
+        switchButton.setText("Change Scene");
+        switchButton.setPosition(340, 190);
+        switchButton.onClick = () => {
+            music.stop();
+            this.sceneManager.changeScene(SecondScene);
+        }
     }
 }

src/Nodes/Graphics/Rect.ts

@@ -14,6 +14,8 @@ export default class Rect extends Graphic {
     render(ctx: CanvasRenderingContext2D): void {
         let origin = this.getViewportOriginWithParallax();
 
+        console.log(origin.toFixed());
+
 		ctx.fillStyle = this.color.toStringRGBA();
 		ctx.fillRect(this.position.x - origin.x, this.position.y - origin.y, this.size.x, this.size.y);
     }

src/ResourceManager/ResourceManager.ts

@@ -108,6 +108,23 @@ export default class ResourceManager {
 
     }
 
+    unloadAllResources(): void {
+        this.loading = false;
+        this.justLoaded = false;
+
+        this.imagesLoaded = 0;
+        this.imagesToLoad = 0;
+        this.images.clear();
+
+        this.tilemapsLoaded = 0;
+        this.tilemapsToLoad = 0;
+        this.tilemaps.clear();
+
+        this.audioLoaded = 0;
+        this.audioToLoad = 0;
+        this.audioBuffers.clear();
+    }
+
     private loadTilemapsFromQueue(onFinishLoading: Function){
         this.tilemapsToLoad = this.tilemapLoadingQueue.getSize();
         this.tilemapsLoaded = 0;

src/Scene/Scene.ts

@@ -9,6 +9,7 @@ import FactoryManager from "./Factories/FactoryManager";
 import Tilemap from "../Nodes/Tilemap";
 import ResourceManager from "../ResourceManager/ResourceManager";
 import GameLoop from "../Loop/GameLoop";
+import SceneManager from "./SceneManager";
 
 export default class Scene{
     protected layers: Stack<Layer>;
@@ -16,6 +17,7 @@ export default class Scene{
     protected viewport: Viewport;
     protected running: boolean;
     protected game: GameLoop;
+    protected sceneManager: SceneManager;
 
     protected tilemaps: Array<Tilemap>;
     protected sceneGraph: SceneGraph;
@@ -24,13 +26,14 @@ export default class Scene{
     public add: FactoryManager;
     public load: ResourceManager;
 
-    constructor(viewport: Viewport, game: GameLoop){
+    constructor(viewport: Viewport, sceneManager: SceneManager, game: GameLoop){
         this.layers = new Stack(10);
         this.worldSize = new Vec2(1600, 1000);
         this.viewport = viewport;
         this.viewport.setBounds(0, 0, 2560, 1280);
         this.running = false;
         this.game = game;
+        this.sceneManager = sceneManager;
 
         this.tilemaps = new Array();
         this.sceneGraph = new SceneGraphArray(this.viewport, this);

src/Scene/SceneManager.ts

@@ -16,8 +16,8 @@ export default class SceneManager{
 		this.game = game;
 	}
 
-	public addScene<T extends Scene>(constr: new (...args: any) => T){
-		let scene = new constr(this.viewport, this.game);
+	public addScene<T extends Scene>(constr: new (...args: any) => T): void {
+		let scene = new constr(this.viewport, this, this.game);
 		this.currentScene = scene;
 
 		// Enqueue all scene asset loads
@@ -27,7 +27,18 @@ export default class SceneManager{
 		this.resourceManager.loadResourcesFromQueue(() => {
 			scene.startScene();
 			scene.setRunning(true);
-		})
+		});
+	}
+
+	public changeScene<T extends Scene>(constr: new (...args: any) => T): void {
+		// unload current scene
+		this.currentScene.unloadScene();
+
+		this.resourceManager.unloadAllResources();
+
+		this.viewport.setPosition(0, 0);
+
+		this.addScene(constr);
 	}
 
 	public render(ctx: CanvasRenderingContext2D){

src/SceneGraph/Viewport.ts

@@ -25,7 +25,7 @@ export default class Viewport{
 			this.position.set(vecOrX.x, vecOrX.y);
 		} else {
 			this.position.set(vecOrX, y);
-		}
+        }
     }
 
     getSize(): Vec2{

src/SecondScene.ts

@@ -0,0 +1,123 @@
+import Scene from "./Scene/Scene";
+import OrthogonalTilemap from "./Nodes/Tilemaps/OrthogonalTilemap";
+import Player from "./Player";
+import Rect from "./Nodes/Graphics/Rect";
+import Color from "./Utils/Color";
+import Vec2 from "./DataTypes/Vec2";
+import UIElement from "./Nodes/UIElement";
+import Button from "./Nodes/UIElements/Button";
+import Layer from "./Scene/Layer";
+
+export default class SecondScene extends Scene {
+
+    loadScene(){
+        this.load.tilemap("level2", "assets/tilemaps/OtherMap.json");
+        this.load.tilemap("background2", "assets/tilemaps/OtherBackground.json");
+        this.load.image("player", "assets/sprites/player.png");
+        this.load.audio("player_jump", "assets/sounds/jump-3.wav");
+        this.load.audio("level_music", "assets/sounds/level.wav");
+
+        let loadingScreen = this.addLayer();
+        let box = this.add.graphic(Rect, loadingScreen, new Vec2(200, 300), new Vec2(400, 60));
+        box.setColor(new Color(0, 0, 0));
+        let bar = this.add.graphic(Rect, loadingScreen, new Vec2(205, 305), new Vec2(0, 50));
+        bar.setColor(new Color(255, 100, 0));
+
+        this.load.onLoadProgress = (percentProgress: number) => {
+            bar.setSize(295 * percentProgress, bar.getSize().y);
+        }
+
+        this.load.onLoadComplete = () => {
+            loadingScreen.disable();
+        }
+    }
+
+    startScene(){
+        // Add the background tilemap
+        let backgroundTilemap = this.add.tilemap("background2", OrthogonalTilemap)[0];
+        // ...and make it have parallax
+        backgroundTilemap.getLayer().setParallax(1, 1);
+        backgroundTilemap.getLayer().setAlpha(0.2);
+
+        // Add the music and start playing it on a loop
+        this.add.audio("level_music").play(true);
+
+        // Add the tilemap
+        this.add.tilemap("level2", OrthogonalTilemap);
+
+        // Create the main game layer
+        let mainLayer = this.addLayer();
+
+        // Add a player
+        let player = this.add.physics(Player, mainLayer, "platformer");
+        let playerSprite = this.add.sprite("player", mainLayer);
+        player.setSprite(playerSprite);
+
+        // TODO - Should sound playing be handled with events?
+        let playerJumpSound = this.add.audio("player_jump");
+        player.jumpSound = playerJumpSound;
+
+        this.viewport.follow(player);
+
+        // Initialize UI
+        let uiLayer = this.addLayer();
+        uiLayer.setParallax(0, 0);
+
+        let recordButton = this.add.uiElement(Button, uiLayer);
+        recordButton.setSize(100, 50);
+        recordButton.setText("Record");
+        recordButton.setPosition(400, 30);
+        recordButton.onClickEventId = "record_button_press";
+
+        let stopButton = this.add.uiElement(Button, uiLayer);
+        stopButton.setSize(100, 50);
+        stopButton.setText("Stop");
+        stopButton.setPosition(550, 30);
+        stopButton.onClickEventId = "stop_button_press";
+
+        let playButton = this.add.uiElement(Button, uiLayer);
+        playButton.setSize(100, 50);
+        playButton.setText("Play");
+        playButton.setPosition(700, 30);
+        playButton.onClickEventId = "play_button_press";
+
+        let cycleFramerateButton = this.add.uiElement(Button, uiLayer);
+        cycleFramerateButton.setSize(150, 50);
+        cycleFramerateButton.setText("Cycle FPS");
+        cycleFramerateButton.setPosition(5, 400);
+        let i = 0;
+        let fps = [15, 30, 60];
+        cycleFramerateButton.onClick = () => {
+            this.game.setMaxFPS(fps[i]);
+            i = (i + 1) % 3;
+        }
+
+        // Pause Menu
+        let pauseLayer = this.addLayer();
+        pauseLayer.setParallax(0, 0);
+        pauseLayer.disable();
+
+        let pauseButton = this.add.uiElement(Button, uiLayer);
+        pauseButton.setSize(100, 50);
+        pauseButton.setText("Pause");
+        pauseButton.setPosition(700, 400);
+        pauseButton.onClick = () => {
+            this.layers.forEach((layer: Layer) => layer.setPaused(true));
+            pauseLayer.enable();
+        }
+
+        let modalBackground = this.add.uiElement(UIElement, pauseLayer);
+        modalBackground.setSize(400, 200);
+        modalBackground.setBackgroundColor(new Color(0, 0, 0, 0.4));
+        modalBackground.setPosition(200, 100);
+
+        let resumeButton = this.add.uiElement(Button, pauseLayer);
+        resumeButton.setSize(100, 50);
+        resumeButton.setText("Resume");
+        resumeButton.setPosition(400, 200);
+        resumeButton.onClick = () => {
+            this.layers.forEach((layer: Layer) => layer.setPaused(false));
+            pauseLayer.disable();
+        }
+    }
+}

tsconfig.json

@@ -2,7 +2,6 @@
     "files": [
         "src/main.ts",
         "src/Player.ts",
-        "src/PlayerSprite.ts",
 
         "src/DataTypes/Tilesets/TiledData.ts",
         "src/DataTypes/Tilesets/Tileset.ts",