/**
* @see net.phys2d.raw.test.AbstractDemo#init(net.phys2d.raw.World)
*/
protected void init(World world) {
Vector2f[] groundVerts = {new Vector2f(-200, -10), new Vector2f(200,-10), new Vector2f(200,10), new Vector2f(-200,10)};
ConvexPolygon groundBox = new ConvexPolygon(groundVerts);
Body ground = new StaticBody("ground", groundBox);
ground.setPosition(250, 50);
world.add(ground);
{