Hello World Box

src/com/github/halotroop/litecraft/LiteCraftMain.java

@@ -1,7 +1,10 @@
 package com.github.halotroop.litecraft;
 
-import org.lwjgl.Version;
+import org.lwjgl.*;
 import org.lwjgl.glfw.*;
+import org.lwjgl.opengl.*;
+import org.lwjgl.system.*;
+import java.nio.*;
 
 public class LiteCraftMain
 {
@@ -9,17 +12,98 @@ public class LiteCraftMain
 
 	public void run()
 	{
-		
+		System.out.println("Hello LWJGL " + Version.getVersion() + "!");
+
+		init();
+		loop();
+
+		// Free the window callbacks and destroy the window
+		Callbacks.glfwFreeCallbacks(window);
+		GLFW.glfwDestroyWindow(window);
+
+		// Terminate GLFW and free the error callback
+		GLFW.glfwTerminate();
+		GLFW.glfwSetErrorCallback(null).free();
 	}
 
 	private void init()
 	{
-		
-	}
+		// Setup an error callback. The default implementation
+				// will print the error message in System.err.
+				GLFWErrorCallback.createPrint(System.err).set();
+
+				// Initialize GLFW. Most GLFW functions will not work before doing this.
+				if ( !GLFW.glfwInit() )
+					throw new IllegalStateException("Unable to initialize GLFW");
+
+				// Configure GLFW
+				GLFW.glfwDefaultWindowHints(); // optional, the current window hints are already the default
+				GLFW.glfwWindowHint(GLFW.GLFW_VISIBLE, GLFW.GLFW_FALSE); // the window will stay hidden after creation
+				GLFW.glfwWindowHint(GLFW.GLFW_RESIZABLE, GLFW.GLFW_TRUE); // the window will be resizable
+
+				// Create the window
+				window = GLFW.glfwCreateWindow(300, 300, "Hello World!", 0, 0);
+				if ( window == 0 )
+					throw new RuntimeException("Failed to create the GLFW window");
+
+				// Setup a key callback. It will be called every time a key is pressed, repeated or released.
+				GLFW.glfwSetKeyCallback(window, (window, key, scancode, action, mods) -> {
+					if ( key == GLFW.GLFW_KEY_ESCAPE && action == GLFW.GLFW_RELEASE )
+						GLFW.glfwSetWindowShouldClose(window, true); // We will detect this in the rendering loop
+				});
+
+				// Get the thread stack and push a new frame
+				try ( MemoryStack stack = MemoryStack.stackPush() ) {
+					IntBuffer pWidth = stack.mallocInt(1); // int*
+					IntBuffer pHeight = stack.mallocInt(1); // int*
+
+					// Get the window size passed to glfwCreateWindow
+					GLFW.glfwGetWindowSize(window, pWidth, pHeight);
+
+					// Get the resolution of the primary monitor
+					GLFWVidMode vidmode = GLFW.glfwGetVideoMode(GLFW.glfwGetPrimaryMonitor());
+
+					// Center the window
+					GLFW.glfwSetWindowPos(
+						window,
+						(vidmode.width() - pWidth.get(0)) / 2,
+						(vidmode.height() - pHeight.get(0)) / 2
+					);
+				} // the stack frame is popped automatically
+
+				// Make the OpenGL context current
+				GLFW.glfwMakeContextCurrent(window);
+				// Enable v-sync
+				GLFW.glfwSwapInterval(1);
+
+				// Make the window visible
+				GLFW.glfwShowWindow(window);
+			}
 
 	private void loop()
 	{
-		
+		// This line is critical for LWJGL's interoperation with GLFW's
+				// OpenGL context, or any context that is managed externally.
+				// LWJGL detects the context that is current in the current thread,
+				// creates the GLCapabilities instance and makes the OpenGL
+				// bindings available for use.
+				GL.createCapabilities();
+
+				// Set the clear color
+				GL11.glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
+
+				// Run the rendering loop until the user has attempted to close
+				// the window or has pressed the ESCAPE key.
+				while ( !GLFW.glfwWindowShouldClose(window) ) {
+					GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT); // clear the framebuffer
+
+					GLFW.glfwSwapBuffers(window); // swap the color buffers
+
+					// Poll for window events. The key callback above will only be
+					// invoked during this call.
+					GLFW.glfwPollEvents();
+					
+				}
 	}
 
 	public static void main(String[] args)