adding a TextureLoader without using SlickUtils

src/org/hl/engine/graphics/Material.java

@@ -0,0 +1,44 @@
+package org.hl.engine.graphics;
+
+import org.hl.engine.utils.TextureLoader;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.openvr.Texture;
+
+import java.awt.image.BufferedImage;
+
+public class Material {
+
+    private Texture texture;
+
+    private BufferedImage image;
+
+    private int width, height;
+    private int textureID;
+
+    public Material(String path) {
+
+         this.image = TextureLoader.loadImage(path); //The path is inside the jar file
+
+    }
+    public void create() {
+        this.width = this.image.getWidth();
+        this.height = this.image.getHeight();
+        this.textureID = TextureLoader.loadTexture(image);
+    }
+
+    public int getWidth() {
+        return width;
+    }
+
+    public int getHeight() {
+        return height;
+    }
+
+    public int getTextureID() {
+        return textureID;
+    }
+
+    public void destroy() {
+        GL11.glDeleteTextures(textureID);
+    }
+}

src/org/hl/engine/utils/TextureLoader.java

@@ -0,0 +1,70 @@
+package org.hl.engine.utils;
+
+// Original TextureLoader by Krythic (replaces SlickUtils texture loader)
+
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+import javax.imageio.ImageIO;
+
+import org.lwjgl.BufferUtils;
+import org.lwjgl.opengl.GL12;
+
+import static org.lwjgl.opengl.GL11.*;
+
+public class TextureLoader {
+    private static final int BYTES_PER_PIXEL = 4;//3 for RGB, 4 for RGBA
+    public static int loadTexture(BufferedImage image){
+
+        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() * BYTES_PER_PIXEL); //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));     // Red component
+                buffer.put((byte) ((pixel >> 8) & 0xFF));      // Green component
+                buffer.put((byte) (pixel & 0xFF));               // Blue component
+                buffer.put((byte) ((pixel >> 24) & 0xFF));    // Alpha component. Only for RGBA
+            }
+        }
+
+        buffer.flip(); //FOR THE LOVE OF GOD DO NOT FORGET THIS
+
+        // You now have a ByteBuffer filled with the color data of each pixel.
+        // Now just create a texture ID and bind it. Then you can load it using
+        // whatever OpenGL method you want, for example:
+
+        int textureID = glGenTextures(); //Generate texture ID
+        glBindTexture(GL_TEXTURE_2D, textureID); //Bind texture ID
+
+        //Setup wrap mode
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL12.GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL12.GL_CLAMP_TO_EDGE);
+
+        //Setup texture scaling filtering
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+        //Send texel data to OpenGL
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, image.getWidth(), image.getHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+
+        //Return the texture ID so we can bind it later again
+        return textureID;
+    }
+
+    public static BufferedImage loadImage(String loc)
+    {
+        try {
+            return ImageIO.read(TextureLoader.class.getResource(loc));
+        } catch (IOException e) {
+            //Error Handling Here
+            System.err.println("Error with loading texture. ");
+            System.exit(1);
+        }
+        return null;
+    }
+}