新增renderer渲染器 用于控制场景如何渲染

source/src/ECS/Components/RenderableComponent.ts

@@ -1,7 +1,7 @@
 /** 
  * 所有可渲染组件的基类 
  */
-abstract class RenderableComponent extends Component {
+abstract class RenderableComponent extends Component implements IRenderable {
     private _isVisible: boolean;
     protected _areBoundsDirty = true;
     protected _bounds: Rectangle;
@@ -60,4 +60,8 @@ abstract class RenderableComponent extends Component {
         this.isVisible = camera.bounds.intersects(this.bounds);
         return this.isVisible;
     }
+
+    public onEntityTransformChanged(comp: ComponentTransform){
+        this._areBoundsDirty = true;
+    }
 }

source/src/ECS/Components/SpriteEffects.ts

@@ -0,0 +1,5 @@
+enum SpriteEffects {
+    none = 0,
+    flipHorizontally = 1,
+    flipVertically = 2
+}

source/src/ECS/Components/SpriteRenderer.ts

@@ -31,6 +31,20 @@ class SpriteRenderer extends RenderableComponent {
         return this;
     }
 
+    public get origin(){
+        return this._origin;
+    }
+    public set origin(value: Vector2){
+        this.setOrigin(value);
+    }
+    public setOrigin(origin: Vector2){
+        if (this._origin != origin){
+            this._origin = origin;
+            this._areBoundsDirty = true;
+        }
+        return this;
+    }
+
     public render(camera: Camera) {
         if (!this.sprite)
             return;