package shootergame.util.gl;

import static org.lwjgl.opengl.GL33.*;

import shootergame.Main;

public class GlHelpers
{
	private static int MATRIX_COUNT = 0;
	
	public static void checkMatrixCount() {
		if(MATRIX_COUNT != 0) {
			MATRIX_COUNT = 0;
			System.err.println("Matrix count is unbalanced!");
		}
	}
	
	public static void begin() {
		glBegin(GL_QUADS);
	}
	
	public static void end() {
		glEnd();
	}
	
	public static void vertex3(double x, double y, double z) {
		glVertex3d(x/10, y/10, z/10);
	}
	
	public static void vertex2(double x, double y) {
		int w = Main.window.getWidth();
		int h = Main.window.getHeight();
		double aspect_ratio = ((double)w) / ((double)h);
		glVertex2d(x/10/aspect_ratio, y/10);
	}
	
	public static void color3(double r, double g, double b) {
		glColor3d(r, g, b);
	}
	
	public static void color4(double r, double g, double b, double a) {
		glColor4d(r, g, b, a);
	}
	
	public static void rotate(double a, double x, double y, double z) {
		glRotated(a, x, y, z);
	}
	
	public static void translate3(double x, double y, double z) {
		glTranslated(x/10, y/10, z/10);
	}
	
	public static void translate2(double x, double y) {
		glTranslated(x/10, y/10, 0);
	}
	
	public static void disableCullFace() {
		glDisable(GL_CULL_FACE);
	}
	
	public static void enableCullFace() {
		glEnable(GL_CULL_FACE);
	}
	
	public static void disableDepthTest() {
		glDisable(GL_DEPTH_TEST);
	}
	
	public static void enableDepthTest() {
		glEnable(GL_DEPTH_TEST);
	}
	
	public static void disableTexture2d() {
		glDisable(GL_TEXTURE_2D);
	}
	
	public static void enableTexture2d() {
		glEnable(GL_TEXTURE_2D);
	}
	
	public static void disableAlpha() {
		glDisable(GL_ALPHA);
	}
	
	public static void enableAlpha() {
		glEnable(GL_ALPHA);
	}
	
	public static void disableBlend() {
		glDisable(GL_BLEND);
	}
	
	public static void enableBlend() {
		glEnable(GL_BLEND);
	}
	
	public static void popMatrix() {
		glPopMatrix();
		MATRIX_COUNT += 1;
	}
	
	public static void pushMatrix() {
		glPushMatrix();
		MATRIX_COUNT -= 1;
	}
}