package net.test;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;

import org.lwjgl.BufferUtils;
import org.lwjgl.LWJGLException;
import org.lwjgl.LWJGLUtil;
import org.lwjgl.input.Keyboard;
import org.lwjgl.opengl.ContextAttribs;
import org.lwjgl.opengl.Display;
import org.lwjgl.opengl.DisplayMode;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL15;
import org.lwjgl.opengl.GL20;
import org.lwjgl.opengl.GL30;
import org.lwjgl.opengl.PixelFormat;
import org.lwjgl.util.glu.GLU;

public class Main {
	// Entry point for the application
	public static void main(String[] args) {
		System.setProperty("org.lwjgl.librarypath",
				new File(new File(System.getProperty("user.dir"), "native"),
						LWJGLUtil.getPlatformName()).getAbsolutePath());
		new Main();
	}

	private final String WINDOW_TITLE = "CubeTest";
	private final int WIDTH = 640;
	private final int HEIGHT = 360;

	private Container cont;

	public Main() {
		this.setupOpenGL();

		cont = new Container(
				new Vertex[] { new Vertex(0.0f, 0.5f, 0.0f),
						new Vertex(-0.5f, -0.5f, 0.0f),
						new Vertex(0.5f, -0.5f, 0.0f) }, new byte[] { 0, 1, 2 });

		while (!Display.isCloseRequested()) {
			this.loopCycle();

			Display.sync(60);
			Display.update();
		}

		cont.destroyResources();
		
		Display.destroy();
	}

	public void setupOpenGL() {
		try {
			PixelFormat pixelFormat = new PixelFormat();
			ContextAttribs contextAtrributes = new ContextAttribs(3, 0)
					.withForwardCompatible(true);

			Display.setDisplayMode(new DisplayMode(WIDTH, HEIGHT));
			Display.setTitle(WINDOW_TITLE);
			Display.create(pixelFormat, contextAtrributes);

			GL11.glViewport(0, 0, WIDTH, HEIGHT);
		} catch (LWJGLException e) {
			e.printStackTrace();
			System.exit(-1);
		}

		GL11.glClearColor(0.4f, 0.6f, 0.9f, 0f);

		GL11.glViewport(0, 0, WIDTH, HEIGHT);
	}

	public void loopCycle() {
		GL11.glClear(GL11.GL_COLOR_BUFFER_BIT);

		while (Keyboard.next()) {
			if (Keyboard.getEventKeyState()) {
				if (Keyboard.getEventKey() == Keyboard.KEY_A) {
					cont.destroyResources();
					cont = new Container(new Vertex[] {
							new Vertex(0.0f, 0.5f, 0.0f),
							new Vertex(-0.5f, -0.5f, 0.0f),
							new Vertex(0.5f, -0.5f, 0.0f) }, new byte[] { 0, 1,
							2 });
				} else if (Keyboard.getEventKey() == Keyboard.KEY_S) {
					cont.destroyResources();
					cont = new Container(
							new Vertex[] {
									new Vertex(0.0f, 0.5f, 0.0f).setRGB(1,
											0.5f, 0.2f),
									new Vertex(-0.5f, -0.5f, 0.0f).setRGB(1,
											0.5f, 0.2f),
									new Vertex(0.5f, -0.5f, 0.0f).setRGB(1,
											0.5f, 0.2f) },
							new byte[] { 0, 1, 2 });
				} else if (Keyboard.getEventKey() == Keyboard.KEY_D) {
					cont.setVertices(new Vertex[] {
							new Vertex(0.0f, 0.5f, 0.0f).setRGB(1, 0.5f, 0.2f),
							new Vertex(-0.5f, -0.5f, 0.0f)
									.setRGB(0.5f, 1, 0.2f),
							new Vertex(0.5f, -0.5f, 0.0f).setRGB(0.2f, 0.5f, 1) });
					cont.setIndices(new byte[] { 0, 1, 2 });
					cont.updateResources();
				} else if (Keyboard.getEventKey() == Keyboard.KEY_C) {
					System.gc();
				}
			}
		}

		cont.render();
	}
}