andengine load angled rectangle

Question

I'm using AndEngine LevelLoader in Gles2 to load rectangles which form the walls for my game.

<entity x="0" y="477" width="800" height="10" type="wall"/>
<entity x="800" y="477" width="240" height="10" angle="315" type="wall"/>

And using the following code to create the rectangle

Rectangle rect = new Rectangle(x, y,
            width, height, activity.getVertexBufferObjectManager());
    rect.setRotation(angle); 
    Body block = PhysicsFactory.createBoxBody(this.mPhysicsWorld, rect,
            BodyType.StaticBody, objectFixtureDef);

It works, but what I want the image below demonstrates what happens. Is there any formulae for working out what Y value to start the rectangle at so it meets up, or how to transform the rectangle so that it starts next to the other one?

Thanks in advance.

Answer 1

In the Entity class, you have a function called setRotationCenter, You can use it to change point where to rotate your entity. By default it is initialized to be at the center of the Entity.

use :

rect.setRotationCenter(0,0)