package shootergame.entity;

import shootergame.display.Camera;
import shootergame.util.gl.GlHelpers;
import shootergame.util.math.vec.Vec2d;

public class EntityParticle extends Entity
{
	private double height;
	private double size;
	
	public EntityParticle(double size, double height)
	{
		// Set some settings
		this.opaqueTile = false;
		this.height = height;
		this.size = size;
	}
	
	public void setSize(double size) {
		this.size = size;
	}
	
	@Override
	public void render(Vec2d pos, Camera camera)
	{
		// Call super
		super.render(pos, camera);
		
		// Push the matrix, disable textures, colour, and translate the bullet
		GlHelpers.pushMatrix();
		GlHelpers.disableTexture2d();
		
		// Get the angle between the camera and the bullet
		double angle_r = camera.angle.x;
		
		// Make the bullet upright
		GlHelpers.translate(size/2, 0, 0);
		GlHelpers.translate(pos.x, pos.y, height);
		GlHelpers.rotate(-angle_r, 0, 0, 1);
		GlHelpers.translate(-size/2, 0, 0);
		
		// Draw the bullet
		GlHelpers.begin();
		{
			GlHelpers.vertex3(0.0f, 0, 0.0f);
			GlHelpers.vertex3(size, 0, 0.0f);
			GlHelpers.vertex3(size, 0, size);
			GlHelpers.vertex3(0.0f, 0, size);
		}
		GlHelpers.end();
		
		// Pop the matrix, remove the colour, and enable textures
		GlHelpers.enableTexture2d();
		GlHelpers.color3(1, 1, 1);
		GlHelpers.popMatrix();
	}
}