package shootergame.util.gl;

import shootergame.display.Camera;
import shootergame.util.gl.texture.TextureReference;
import shootergame.util.math.vec.Vec2d;

public class VerticalRender
{
	public static void render(Vec2d pos, Camera camera, TextureReference tex, Vec2d size)
	{
		double w = size.x/2.0;
		double h = size.y;
		
		// Push the matrix
		GlHelpers.pushMatrix();
		
		// Get the angle between the camera and the tile
		double angle_r = camera.angle.x;
		
		// Make the tile upright
		GlHelpers.translate3(0.5, 0.5, 0);
		GlHelpers.translate3(pos.x, pos.y, 0);
		GlHelpers.rotate(-angle_r, 0, 0, 1);
		GlHelpers.translate3(-0.5, -0.5, 0);
		
		// Render the tile
		GlHelpers.begin();
		tex.texCoord(0, 1);	GlHelpers.vertex3(0.5-w, 0.5, 0);
		tex.texCoord(1, 1);	GlHelpers.vertex3(0.5+w, 0.5, 0);
		tex.texCoord(1, 0);	GlHelpers.vertex3(0.5+w, 0.5, h);
		tex.texCoord(0, 0);	GlHelpers.vertex3(0.5-w, 0.5, h);
		GlHelpers.end();
		
		// Pop the matrix
		GlHelpers.popMatrix();
	}
}