import org.newdawn.slick.geom.TexCoordGenerator; //导入依赖的package包/类
/**
 * @see org.newdawn.slick.BasicGame#init(org.newdawn.slick.GameContainer)
 */
public void init(GameContainer container) throws SlickException {
	poly.addPoint(120, 120);
	poly.addPoint(420, 100);
	poly.addPoint(620, 420);
	poly.addPoint(300, 320);

	image = new Image("testdata/rocks.png");
	
	texPaint = new TexCoordGenerator() {
		public Vector2f getCoordFor(float x, float y) {
			float tx = (texRect.getX() - x) / texRect.getWidth();
			float ty = (texRect.getY() - y) / texRect.getHeight();
			
			return new Vector2f(tx,ty);
		}
	};
}