移除Core，新增各接口用于sdk扩展

source/src/ECS/Components/Physics/Colliders/Collider.ts

@@ -116,6 +116,28 @@ module es {
         public onAddedToEntity() {
             if (this._colliderRequiresAutoSizing) {
                 Insist.isTrue(this instanceof BoxCollider || this instanceof CircleCollider, "只有框和圆的碰撞器可以自动创建");
+
+                let renderable = this.entity.getComponent<RenderableComponent>(RenderableComponent);
+                if (renderable == null)
+                    console.warn("Collider没有形状，也没有RenderableComponent。不知道如何确定它的大小。");
+                if (renderable != null) {
+                    let renderableBounds = renderable.bounds.clone();
+
+                    // 我们在这里需要大小*反比例，因为当我们自动调整Collider的大小时，它需要没有一个缩放的Renderable
+                    let width = renderableBounds.width / this.entity.transform.scale.x;
+                    let height = renderableBounds.height / this.entity.transform.scale.y;
+
+                    if (this instanceof CircleCollider) {
+                        this.radius = Math.max(width, height) * 0.5;
+                        // 获取Renderable的中心，将其转移到本地坐标，并将其作为我们碰撞器的localOffset
+                        this.localOffset = Vector2.subtract(renderableBounds.center, this.entity.transform.position);
+                    } else if (this instanceof BoxCollider) {
+                        this.width = width;
+                        this.height = height;
+
+                        this.localOffset = Vector2.subtract(renderableBounds.center, this.entity.transform.position);
+                    }
+                }
             }
 
             this._isParentEntityAddedToScene = true;