package destr.jogl.game2d;

import java.nio.Buffer;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;

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

public abstract class Pointer implements GLBuffer {

	protected Buffer buffer;
	protected int glType;
	protected int count;
	protected int stride;
	
	public Pointer(int stride, float[]data){
		ByteBuffer buffer	= ByteBuffer.allocateDirect(data.length * Float.SIZE);
		buffer.order(ByteOrder.nativeOrder());
		FloatBuffer fb = buffer.asFloatBuffer();
		fb.put(data);
		fb.position(0);
		this.buffer = fb;

		this.count	= data.length / stride;
		this.glType	= GL2.GL_FLOAT;
		this.stride	= stride;
	}
	
	public void draw(GL gl){
		gl.getGL2().glDrawArrays(GL2.GL_TRIANGLES, 0, this.count);  
	}
	
	public void draw(GL gl, int mode, int first){
		gl.getGL2().glDrawArrays(mode, first, this.count);  
	}
}