Create GameEngine

First Game Engine Project/src/mrdev023/gameengine/GameEngine.java

@@ -0,0 +1,103 @@
+package mrdev023.gameengine;
+
+import mrdev023.gameengine.gamestate.main.*;
+import mrdev023.opengl.*;
+
+public class GameEngine {
+	
+	private static Frame frame;
+	
+	private static long current,previous,elapsedInfo,elapsedTicks;
+	private static int countFPS = 0,countTICKS = 0,FPS,TICKS;
+	private static boolean IsRunning = false;
+	private static GameState state = GameState.MAIN;
+	private static String title;
+
+	public static void start(String title,int width,int height){
+		try{
+			GameEngine.title = title;
+			frame = new Frame(title, width, height, false, false);
+			init();
+			loop();
+		}catch(Exception e){
+			e.printStackTrace();
+		}
+	}
+	
+	public static void init(){
+		current = System.nanoTime();
+		state.init();
+	}
+	
+	public static void loop(){
+		IsRunning = true;
+		while(IsRunning){
+			previous = current;
+			current = System.nanoTime();
+			elapsedInfo += current - previous;
+			elapsedTicks += current - previous;
+			
+			if(frame.isClosedRequested()){
+				IsRunning = false;
+				continue;
+			}
+			
+			if(elapsedTicks >= 1000000000/60){
+				frame.updateEvent();
+				state.updateKeyboard();
+				state.updateMouse();
+				state.update();
+				countTICKS++;
+				elapsedTicks -= 1000000000/60;
+			}else{
+				DisplayManager.clear();
+				DisplayManager.preRender2D();
+				DisplayManager.render2D();
+				DisplayManager.preRenderGUI();
+				DisplayManager.renderGUI();
+				frame.updateDisplay();
+				countFPS++;
+			}
+			
+			if(elapsedInfo >= 1000000000){
+				FPS = countFPS;
+				countFPS = 0;
+				TICKS = countTICKS;
+				countTICKS = 0;
+				frame.setTitle(title + " | FPS:" + FPS + " | TICKS:" + TICKS);
+				elapsedInfo -= 1000000000;
+			}
+		}
+		destroy();
+	}
+	
+	public static void destroy(){
+		state.destroy();
+		frame.destroy();
+	}
+
+	public static Frame getFrame() {
+		return frame;
+	}
+
+	public static boolean isRunning() {
+		return IsRunning;
+	}
+
+	public static void setRunning(boolean isRunning) {
+		IsRunning = isRunning;
+	}
+
+	public static GameState getGameState() {
+		return state;
+	}
+
+	public static void setGameState(GameState state) {
+		GameEngine.state.destroy();
+		GameEngine.state = state;
+		GameEngine.state.init();
+	}
+	
+	
+	
+}

First Game Engine Project/src/mrdev023/gameengine/gamestate/MainState.java

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+package mrdev023.gameengine.gamestate;
+
+import mrdev023.gameengine.gamestate.main.*;
+
+public class MainState implements IGameState{
+
+	public void init() {
+		
+	}
+
+	public void destroy() {
+		
+	}
+	
+	public void preRender2D() {
+		
+	}
+
+	public void preRenderGUI() {
+		
+	}
+
+	public void renderGUI() {
+		
+	}
+
+	public void render2D() {
+		
+	}
+
+	public void update() {
+		
+	}
+
+	public void updateKeyboard() {
+		
+	}
+
+	public void updateMouse() {
+		
+	}
+
+}

First Game Engine Project/src/mrdev023/gameengine/gamestate/main/GameState.java

@@ -0,0 +1,51 @@
+package mrdev023.gameengine.gamestate.main;
+
+import mrdev023.gameengine.gamestate.*;
+
+public enum GameState {
+
+	MAIN(new MainState());
+	
+	IGameState state;
+	
+	GameState(IGameState state){
+		this.state = state;
+	}
+	
+	public void init(){
+		this.state.init();
+	}
+	
+	public void destroy(){
+		this.state.destroy();
+	}
+	
+	public void preRender2D(){
+		this.state.preRender2D();
+	}
+	
+	public void preRenderGUI(){
+		this.state.preRenderGUI();
+	}
+	
+	public void renderGUI(){
+		this.state.renderGUI();
+	}
+	
+	public void render2D(){
+		this.state.render2D();
+	}
+	
+	public void update(){
+		this.state.update();
+	}
+	
+	public void updateKeyboard(){
+		this.state.updateKeyboard();
+	}
+	
+	public void updateMouse(){
+		this.state.updateMouse();
+	}
+	
+}

First Game Engine Project/src/mrdev023/gameengine/gamestate/main/IGameState.java

@@ -0,0 +1,15 @@
+package mrdev023.gameengine.gamestate.main;
+
+public interface IGameState {
+
+	public void init();
+	public void destroy();
+	public void preRender2D();
+	public void preRenderGUI();
+	public void renderGUI();
+	public void render2D();
+	public void update();
+	public void updateKeyboard();
+	public void updateMouse();
+	
+}