package destr.jogl.main;

import javax.media.opengl.GL;
import javax.media.opengl.GL2;
import javax.media.opengl.GLAutoDrawable;

import destr.jogl.buffer.GLColorPointerRGBA;
import destr.jogl.buffer.GLVertixPointerXYZ;
import destr.jogl.game2d.Game2DCanvas;

public class GLPointerTest extends Game2DCanvas{
	private static final long serialVersionUID = 5956392369871648818L;
	public GLPointerTest(int width, int height) {
		super(width, height);
	}
	
	private GLVertixPointerXYZ shape;
	private GLColorPointerRGBA color;

	@Override
	public void init(GLAutoDrawable drawable){
		super.init(drawable);
		GL gl = drawable.getGL();

		color = new GLColorPointerRGBA(gl, new float[]{
			1,0,0,1,
			0,1,0,1,
			0,0,1,1,
			1,1,0,1,
		});

		shape = new GLVertixPointerXYZ(gl, new float[]{
			0,0,0,
			1,0,0,
			1,1,0,
			0,1,0,
		});
	}
	
	@Override
	public void display(GLAutoDrawable drawable) {
		GL gl = drawable.getGL();
		GL2 gl2 = gl.getGL2();
		
		gl2.glClear(GL2.GL_COLOR_BUFFER_BIT);
	    gl2.glLoadIdentity();
	    gl2.glTranslatef(-1f, 1f, 0);
		gl2.glScalef(2.0f, -2.0f, 0f);
		
		gl2.glScalef(0.25f, 0.25f, 0);
		
		shape.bind(gl);
		color.bind(gl);
		
		gl2.glEnableClientState(GL2.GL_VERTEX_ARRAY);
		gl2.glEnableClientState(GL2.GL_COLOR_ARRAY);
		
		gl2.glDrawArrays(GL2.GL_QUADS, 0, 4);
		
		gl2.glDisableClientState(GL2.GL_VERTEX_ARRAY);
		gl2.glDisableClientState(GL2.GL_COLOR_ARRAY);
	}

}