fixed issues with tilemaps and physics

src/DataTypes/Tilesets/TiledData.ts

@@ -8,6 +8,12 @@ export class TiledTilemapData {
     tilesets: TiledTilesetData[];
 }
 
+export class TiledLayerProperty {
+    name: string;
+    type: string;
+    value: any;
+}
+
 export class TiledTilesetData {
     columns: number;
     tilewidth: number;
@@ -31,5 +37,6 @@ export class TiledLayerData {
     name: string;
     opacity: number;
     visible: boolean;
+    properties: TiledLayerProperty[];
 }
 

src/GameState/Factories/TilemapFactory.ts

@@ -27,6 +27,8 @@ export default class TilemapFactory {
                 // Add to scene
                 this.scene.addTilemap(tilemap);
 
+                if(tilemap.isCollidable()){
+                    // Create colliders
                     let worldSize = tilemap.getWorldSize();
                     let tileSize = tilemap.getTileSize();
 
@@ -37,6 +39,7 @@ export default class TilemapFactory {
                             this.scene.physics.add(StaticBody, new Vec2(x, y), new Vec2(tileSize.x * 4, tileSize.y * 4));
                         }
                     });
+                }
 
                 // Load images for the tilesets
                 tilemap.getTilesets().forEach(tileset => {

src/GameState/GameState.ts

@@ -13,7 +13,7 @@ export default class GameState{
         this.worldSize = new Vec2(1600, 1000);
         this.viewport = new Viewport();
         this.viewport.setSize(800, 500);
-        this.viewport.setBounds(0, 0, 1600, 1000);
+        this.viewport.setBounds(0, 0, 2560, 1280);
     }
 
     createScene(): Scene{

src/GameState/Scene.ts

@@ -102,15 +102,15 @@ export default class Scene {
             let origin = new Vec2(viewportOrigin.x*this.parallax.x, viewportOrigin.y*this.parallax.y);
             let size = this.viewport.getSize();
 
-            // Render visible set
-            visibleSet.forEach(node => node.render(ctx, origin));
-
             // Render tilemaps
             this.tilemaps.forEach(tilemap => {
-                if(tilemap.isReady()){
+                if(tilemap.isReady() && tilemap.isVisible()){
                     tilemap.render(ctx, origin, size);
                 }
             });
+
+            // Render visible set
+            visibleSet.forEach(node => node.render(ctx, origin));
         }
     }
 }

src/Input/InputReceiver.ts

@@ -58,9 +58,11 @@ export default class InputReceiver{
 
 			if(event.type === "key_down"){
 				let key = event.data.get("key")
+				if(!this.keyPressed.get(key)){
 					this.keyJustPressed.set(key, true);
 					this.keyPressed.set(key, true);
 				}
+			}
 
 			if(event.type === "key_up"){
 				let key = event.data.get("key")

src/Nodes/Tilemap.ts

@@ -11,6 +11,8 @@ export default abstract class Tilemap extends GameNode {
     protected tilesets: Tileset[];
     protected worldSize: Vec2;
     protected tileSize: Vec2;
+    protected visible: boolean;
+    protected collidable: boolean;
 
     constructor(tilemapData: TiledTilemapData, layerData: TiledLayerData){
         super();
@@ -20,6 +22,14 @@ export default abstract class Tilemap extends GameNode {
         this.parseTilemapData(tilemapData, layerData);
     }
 
+    isCollidable(): boolean {
+        return this.collidable;
+    }
+
+    isVisible(): boolean {
+        return this.visible;
+    }
+
     getTilesets(): Tileset[] {
         return this.tilesets;
     }

src/Nodes/Tilemaps/OrthogonalTilemap.ts

@@ -5,10 +5,18 @@ import Tileset from "../../DataTypes/Tilesets/Tileset";
 
 
 export default class OrthogonalTilemap extends Tilemap {
+
     parseTilemapData(tilemapData: TiledTilemapData, layer: TiledLayerData): void {
         this.worldSize.set(tilemapData.width, tilemapData.height);
         this.tileSize.set(tilemapData.tilewidth, tilemapData.tileheight);
         this.data = layer.data;
+        this.visible = layer.visible;
+        this.collidable = false;
+        for(let item of layer.properties){
+            if(item.name === "Collidable"){
+                this.collidable = item.value;
+            }
+        }
         tilemapData.tilesets.forEach(tilesetData => this.tilesets.push(new Tileset(tilesetData)));
     }
 
@@ -20,6 +28,7 @@ export default class OrthogonalTilemap extends Tilemap {
 
     update(deltaT: number): void {}
 
+    // TODO: Don't render tiles that aren't on screen
     render(ctx: CanvasRenderingContext2D, origin: Vec2, viewportSize: Vec2) {
         for(let i = 0; i < this.data.length; i++){
             let tileIndex = this.data[i];

src/Physics/PhysicsManager.ts

@@ -2,6 +2,7 @@ import PhysicsNode from "./PhysicsNode";
 import Vec2 from "../DataTypes/Vec2";
 import StaticBody from "./StaticBody";
 import Debug from "../Debug/Debug";
+import MathUtils from "../Utils/MathUtils";
 
 export default class PhysicsManager {
 
@@ -41,6 +42,7 @@ export default class PhysicsManager {
 
         // For now, we will only have the moving player, don't bother checking for collisions with other moving things
         for(let movingNode of dynamicSet){
+            movingNode.setIsGrounded(false);
             // Get velocity of node
             let velocity = null;
             for(let data of this.movements){
@@ -141,12 +143,34 @@ export default class PhysicsManager {
             collidingY = true;
         }
 
+        if(B.x < A.x){
+            // Swap, because B is to the left of A
+            let temp: Vec2;
+            temp = sizeA;
+            sizeA = sizeB;
+            sizeB = temp;
+
+            temp = A;
+            A = B;
+            B = temp;
+
+            temp = velA;
+            velA = velB;
+            velB = temp;
+        }
+
         if( (firstContact.x < 1 || collidingX) && (firstContact.y < 1 || collidingY)){
             if(collidingX && collidingY){
                 // If we're already intersecting, freak out I guess?
             } else {
-                let contactTime = Math.min(firstContact.x, firstContact.y);
-                velocity.scale(contactTime);
+                // let contactTime = Math.min(firstContact.x, firstContact.y);
+                // velocity.scale(contactTime);
+                let xScale = MathUtils.clamp(firstContact.x, 0, 1);
+                let yScale = MathUtils.clamp(firstContact.y, 0, 1);
+                if(yScale !== 1){
+                    movingNode.setIsGrounded(true);
+                } 
+                velocity.scale(xScale, yScale);
             }
         }
     }

src/Physics/PhysicsNode.ts

@@ -9,6 +9,7 @@ export default abstract class PhysicsNode extends GameNode {
     protected children: Array<GameNode>;
     private manager: PhysicsManager;
     isMoving: boolean;
+    protected isGrounded: boolean;
 
     constructor(){
         super();
@@ -16,6 +17,10 @@ export default abstract class PhysicsNode extends GameNode {
         this.isMoving = false;
     }
 
+    setIsGrounded(isGrounded: boolean): void {
+        this.isGrounded = isGrounded;
+    }
+
     addManager(manager: PhysicsManager): void {
         this.manager = manager;
     }

src/Player.ts

@@ -9,15 +9,21 @@ export default class Player extends PhysicsNode {
 	speed: number;
     debug: Debug;
     size: Vec2;
+    gravity: number = 7000;
+    type: string;
 
-    constructor(){
+    constructor(type: string){
         super();
+        this.type = type;
         this.velocity = new Vec2(0, 0);
-        this.speed = 300;
+        this.speed = 500;
         this.size = new Vec2(50, 50);
         this.collider = new AABB();
         this.collider.setSize(this.size);
         this.position = new Vec2(0, 0);
+        if(this.type === "topdown"){
+            this.position = new Vec2(100, 100);
+        }
 		this.debug = Debug.getInstance();
     }
 
@@ -29,18 +35,60 @@ export default class Player extends PhysicsNode {
     }
 
     update(deltaT: number): void {
+        if(this.type === "topdown"){
+            let dir = this.topdown_computeDirection();
+            this.velocity = this.topdown_computeVelocity(dir, deltaT);
+        } else {
+            let dir = this.platformer_computeDirection();
+            this.velocity = this.platformer_computeVelocity(dir, deltaT);
+        }
+
+		this.move(new Vec2(this.velocity.x * deltaT, this.velocity.y * deltaT));
+
+		this.debug.log("player", "Player Pos: " + this.position.toFixed() + ", Player Vel: " + this.velocity.toFixed());
+    }
+
+    topdown_computeDirection(): Vec2 {
         let dir = new Vec2(0, 0);
 		dir.x += this.input.isPressed('a') ? -1 : 0;
         dir.x += this.input.isPressed('d') ? 1 : 0;
-		dir.y += this.input.isPressed('s') ? 1 : 0;
         dir.y += this.input.isPressed('w') ? -1 : 0;
+        dir.y += this.input.isPressed('s') ? 1 : 0;
 
         dir.normalize();        
 
-        this.velocity = dir.scale(this.speed);
-		this.move(this.velocity.scale(deltaT));
+        return dir;
+    }
 
-		this.debug.log("player", "Player Pos: " + this.position.toFixed() + " " + this.velocity.toFixed());
+    topdown_computeVelocity(dir: Vec2, deltaT: number): Vec2 {
+        let vel = new Vec2(dir.x * this.speed, dir.y * this.speed);
+        return vel
+    }
+
+    platformer_computeDirection(): Vec2 {
+        let dir = new Vec2(0, 0);
+		dir.x += this.input.isPressed('a') ? -1 : 0;
+        dir.x += this.input.isPressed('d') ? 1 : 0;
+        
+        if(this.isGrounded){
+            dir.y += this.input.isJustPressed('w') ? -1 : 0;
+        }
+
+        return dir;
+    }
+
+    platformer_computeVelocity(dir: Vec2, deltaT: number): Vec2 {
+        let vel = new Vec2(0, this.velocity.y);
+
+        if(this.isGrounded){
+            vel.y = dir.y*1800;
+        }
+
+        vel.y += this.gravity * deltaT;
+
+        vel.x = dir.x * this.speed;
+
+        return vel
     }
 
 }

src/main.ts

@@ -15,17 +15,12 @@ function main(){
     let backgroundScene = gameState.createScene();
     backgroundScene.setParallax(0.5, 0.5);
     let mainScene = gameState.createScene();
-    let foregroundLayer = gameState.createScene();
-    foregroundLayer.setParallax(1.5, 1.5);
     let uiLayer = gameState.createScene();
     uiLayer.setParallax(0, 0);
     let pauseMenu = gameState.createScene();
     pauseMenu.setParallax(0, 0);
 
     // Initialize GameObjects
-    let player = mainScene.physics.add(Player);
-    mainScene.getViewport().follow(player);
-
     let recordButton = uiLayer.canvasNode.add(Button);
     recordButton.setSize(100, 50);
     recordButton.setText("Record");
@@ -79,13 +74,8 @@ function main(){
     }
 
     mainScene.tilemap.add(OrthogonalTilemap, "assets/tilemaps/Platformer.json");
-
-    for(let i = 0; i < 30; i++){
-        let cc = foregroundLayer.canvasNode.add(ColoredCircle);
-        cc.setSize(80, 80);
-        cc.setColor(cc.getColor().lighten().lighten())
-        cc.getColor().a = 0.5;
-    }
+    let player = mainScene.physics.add(Player, "platformer");
+    mainScene.getViewport().follow(player);
 
     pauseMenu.disable();