新增tiledspriterenderer

source/src/ECS/Components/TiledSpriteRenderer.ts

@@ -0,0 +1,36 @@
+class TiledSpriteRenderer extends SpriteRenderer {
+    protected sourceRect: Rectangle;
+
+    public get scrollX(){
+        return this.sourceRect.x;
+    }
+    public set scrollX(value: number){
+        this.sourceRect.x = value;
+    }
+    public get scrollY(){
+        return this.sourceRect.y;
+    }
+    public set scrollY(value: number){
+        this.sourceRect.y = value;
+    }
+
+    constructor(sprite: Sprite){
+        super();
+
+        this.setSprite(sprite);
+        this.sourceRect = sprite.sourceRect;
+    }
+
+    public render(camera: Camera){
+        if (!this.sprite)
+            return;
+
+        super.render(camera);
+
+        let renderTexture = new egret.RenderTexture();
+        let targetTexture = new egret.Bitmap(this.sprite.texture2D);
+        let clipBounds = new egret.Rectangle(this.sourceRect.x, this.sourceRect.y, this.sourceRect.width, this.sourceRect.height);
+        renderTexture.drawToTexture(targetTexture, clipBounds);
+        this.bitmap.texture = renderTexture;
+    }
+}