AndEngine_example1.2 画矩形

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同样的是 3个回调

public EngineOptions onCreateEngineOptions()

protected void onCreateResources()

protected Scene onCreateScene()

只是对应的Scene有变化，前面的和1一样

Entity 作为一个对象，可以设置attachChild子对象

准备画2个正方形，开始坐标为(0,0)左上角

一个的左上角是（0，0）边长为180，

一个是（200，100）边长为380

写一个Scene，

private Scene getEntityLeftTop(){final Scene scene = new Scene();scene.setBackground(new Background(0.09804f, 0.6274f, 0.8784f));final VertexBufferObjectManager vertexBufferObjectManager = this.getVertexBufferObjectManager();//对象的起始点(左上角)final Entity rectangleGroup = new Entity(0, 0);rectangleGroup.setColor(40,10,10);Rectangle  rect1 = new Rectangle(0, 0, 180, 180, vertexBufferObjectManager);rect1.setColor(10,10,10);Rectangle  rect2 = new Rectangle(200, 100, 380, 380, vertexBufferObjectManager);rect2.setColor(10,50,10);rectangleGroup.attachChild(rect2);rectangleGroup.attachChild(rect1);scene.attachChild(rectangleGroup);return scene;}

在protected Scene onCreateScene()中 return这个Scene，就可以得到2个正方形了

同理，如果设置Entity在正中间的话，就从中间开始画了

其中，有一个Rectangle起点是负值，可以认为是负的坐标

private Scene getEntityCenter(){final Scene scene = new Scene();scene.setBackground(new Background(0.09804f, 0.6274f, 0.8784f));final VertexBufferObjectManager vertexBufferObjectManager = this.getVertexBufferObjectManager();//对象的起始点(左上角)final Entity rectangleGroup = new Entity(CAMERA_WIDTH / 2, CAMERA_HEIGHT / 2);rectangleGroup.setColor(40,10,10);Rectangle  rect1 = new Rectangle(0, 0, 180, 180, vertexBufferObjectManager);rect1.setColor(10,10,10);Rectangle  rect2 = new Rectangle(-180, -100, 380, 380, vertexBufferObjectManager);rect2.setColor(10,50,10);rectangleGroup.attachChild(rect2);rectangleGroup.attachChild(rect1);scene.attachChild(rectangleGroup);return scene;}