...package declairation

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.nio.ByteBuffer;

import javax.imageio.ImageIO;

import org.lwjgl.BufferUtils;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;
import org.lwjgl.opengl.GL13;

public class Texture {
	public BufferedImage source;
	public int id;

	public Texture(){
		id = GL11.glGenTextures();
	}

	public void bind(){
		GL11.glBindTexture(GL11.GL_TEXTURE_2D, id);
	}

	public void unbind(){
		GL11.glBindTexture(GL11.GL_TEXTURE_2D, 0);
	}

	public int getID(){
		return id;
	}

	public void dispose() {
		GL11.glDeleteTextures(id);
	}

	public static Texture loadTexture(String resourceName){
		Texture texture = new Texture();

		BufferedImage image = null;

		try {
			image = ImageIO.read(new File(resourceName));
		} catch (IOException e) {
			e.printStackTrace();
		}

		int[] pixels = new int[image.getWidth() * image.getHeight()];
		image.getRGB(0, 0, image.getWidth(), image.getHeight(), pixels, 0,
				image.getWidth());

		ByteBuffer buffer = BufferUtils.createByteBuffer(image.getWidth() * image.getHeight() * 4); // 4 for RGBA, 3 for RGB

		for (int y = 0; y < image.getHeight(); y++) {
			for (int x = 0; x < image.getWidth(); x++) {
				int pixel = pixels[y * image.getWidth() + x];
				buffer.put((byte) ((pixel >> 16) & 0xFF));
				buffer.put((byte) ((pixel >> 8) & 0xFF));
				buffer.put((byte) (pixel & 0xFF));
				buffer.put((byte) ((pixel >> 24) & 0xFF));
			}
		}

		buffer.flip();

		texture.id = GL11.glGenTextures();
		texture.bind();

		// Setup wrap mode
		GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL12.GL_CLAMP_TO_EDGE);
		GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL12.GL_CLAMP_TO_EDGE);

		// Setup texture scaling filtering
		GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST);
		GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST);

		// Send texel data to OpenGL
		GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA8, image.getWidth(), image.getHeight(), 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buffer);
		texture.unbind();
		return texture;
	}
}