First Commit

core/src/com/mygdx/game/MyGdxGame.java

 package com.mygdx.game;
 
-import com.badlogic.gdx.ApplicationAdapter;
-import com.badlogic.gdx.Gdx;
-import com.badlogic.gdx.graphics.GL20;
-import com.badlogic.gdx.graphics.Texture;
+import com.badlogic.gdx.Game;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.graphics.g2d.BitmapFont;
+import screens.MainMenuScreen;
 
-public class MyGdxGame extends ApplicationAdapter {
-	SpriteBatch batch;
-	Texture img;
+public class MyGdxGame extends Game {
+	public SpriteBatch batch;
+	public BitmapFont font;
 	
 	@Override
 	public void create () {
 		batch = new SpriteBatch();
-		img = new Texture("badlogic.jpg");
+		font = new BitmapFont();
+		this.setScreen(new MainMenuScreen(this));
+	
 	}
 
 	@Override
 	public void render () {
-		Gdx.gl.glClearColor(1, 0, 0, 1);
-		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
-		batch.begin();
-		batch.draw(img, 0, 0);
-		batch.end();
+		super.render();
 	}
 	
 	@Override
 	public void dispose () {
 		batch.dispose();
-		img.dispose();
+		font.dispose();
 	}
 }

core/src/screens/GameOverScreen.java

+package screens;
+
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.Input.Keys;
+import com.mygdx.game.*;
+
+public class GameOverScreen extends ScreenTemplate{
+	
+
+
+	public GameOverScreen(final MyGdxGame game)
+	{
+		super(game);
+	}
+	
+	
+	public void process_input(float delta)
+	{
+		super.process_input(delta);
+		if (Gdx.input.isKeyPressed(Keys.F1)&&enough_time_passed()) {
+			game_handle.setScreen(new MainMenuScreen(game_handle));
+			dispose();
+		}	
+	}
+	
+	public void update(float delta)
+	{
+		
+	}
+	
+	public void render_me(float delta)
+	{
+		Gdx.gl.glClearColor(0, 0, 0.2f, 1);
+		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
+
+		camera.update();
+		game_handle.batch.setProjectionMatrix(camera.combined);
+
+		game_handle.batch.begin();
+		game_handle.font.draw(game_handle.batch, "Game Over! ", 100, 150);
+		game_handle.font.draw(game_handle.batch, "Press F1 to play again", 100, 100);
+		game_handle.batch.end();
+	}
+	
+}

core/src/screens/MainGameScreen.java

+package screens;
+
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.Input.Keys;
+import com.mygdx.game.*;
+
+public class MainGameScreen extends ScreenTemplate{
+	
+
+	public MainGameScreen(final MyGdxGame game)
+	{
+		super(game);
+	}
+	
+
+	public void process_input(float delta)
+	{
+		super.process_input(delta);
+		if (Gdx.input.isKeyPressed(Keys.F1)&&enough_time_passed()) {
+			game_handle.setScreen(new GameOverScreen(game_handle));
+			dispose();
+		}	
+	}
+	
+	public void update(float delta)
+	{
+		
+	}
+	
+	public void render_me(float delta)
+	{
+		Gdx.gl.glClearColor(0, 0, 0.2f, 1);
+		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
+
+		camera.update();
+		game_handle.batch.setProjectionMatrix(camera.combined);
+
+		game_handle.batch.begin();
+		game_handle.font.draw(game_handle.batch, "oooh super sexy game play!! ", 100, 150);
+		game_handle.font.draw(game_handle.batch, "Press F1 to end game", 100, 100);
+		game_handle.batch.end();
+	}
+	
+
+}

core/src/screens/MainMenuScreen.java

+package screens;
+
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.Input.Keys;
+import com.mygdx.game.*;
+
+public class MainMenuScreen extends ScreenTemplate{
+	
+
+	public MainMenuScreen(final MyGdxGame game)
+	{
+		super(game);
+	
+	}
+	
+
+	public void process_input(float delta)
+	{
+		super.process_input(delta);
+		
+		if (Gdx.input.isTouched()) {
+			game_handle.setScreen(new MainGameScreen(game_handle));
+			dispose();
+		}	
+		if (Gdx.input.isKeyPressed(Keys.F1)&&enough_time_passed()) {
+			game_handle.setScreen(new MainGameScreen(game_handle));
+			dispose();
+		}	
+			
+	}
+	
+	public void update(float delta)
+	{
+		
+	}
+	
+	public void render_me(float delta)
+	{
+		Gdx.gl.glClearColor(0, 0, 0.2f, 1);
+		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
+
+		camera.update();
+		game_handle.batch.setProjectionMatrix(camera.combined);
+
+		game_handle.batch.begin();
+		game_handle.font.draw(game_handle.batch, "Welcome to My Sexy Game!!! ", 100, 150);
+		game_handle.font.draw(game_handle.batch, "Tap anywhere to begin!, Esc for options", 100, 100);
+		game_handle.batch.end();
+	}
+	
+
+}

core/src/screens/OptionsScreen.java

+package screens;
+
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.Input.Keys;
+import com.mygdx.game.*;
+
+public class OptionsScreen extends ScreenTemplate{
+	
+	public ScreenTemplate previousScreen;
+	boolean ESC_PRESSED=false;
+
+	public OptionsScreen(final MyGdxGame game, ScreenTemplate prev_screen)
+	{
+		super(game);
+		previousScreen = prev_screen;
+	
+	}
+	
+
+	public void process_input(float delta)
+	{
+		// do not call super.process_input(delta) here
+		// its there to call switch to options screen
+		// and we are already there!
+		
+		if (Gdx.input.isTouched()) {
+			game_handle.setScreen(new MainGameScreen(game_handle));
+			dispose();
+		}	
+		if (Gdx.input.isKeyPressed(Keys.F1)&&enough_time_passed()) {
+			game_handle.setScreen(new MainGameScreen(game_handle));
+			dispose();
+		}	
+		if (Gdx.input.isKeyPressed(Keys.ESCAPE)&&enough_time_passed()) {
+			previousScreen.set_start_time();
+			game_handle.setScreen(previousScreen);
+			dispose();
+		}	
+	}
+	
+	public void update(float delta)
+	{
+		
+	}
+	
+	public void render_me(float delta)
+	{
+		Gdx.gl.glClearColor(0, 0, 0.2f, 1);
+		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
+
+		camera.update();
+		game_handle.batch.setProjectionMatrix(camera.combined);
+
+		game_handle.batch.begin();
+		game_handle.font.draw(game_handle.batch, "Options Screen", 100, 150);
+		game_handle.font.draw(game_handle.batch, "Press escape to return", 100, 100);
+		game_handle.batch.end();
+	}
+	
+
+}

core/src/screens/ScreenTemplate.java

+package screens;
+
+
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.Screen;
+import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.OrthographicCamera;
+import com.badlogic.gdx.Input.Keys;
+import com.mygdx.game.*;
+import com.badlogic.gdx.utils.TimeUtils;
+
+
+public class ScreenTemplate implements Screen{
+	
+	public MyGdxGame game_handle;
+	public OrthographicCamera camera;
+	public long StartTime;
+	public final long ENOUGH_TIME = 250; // 250ms
+	
+	public ScreenTemplate()
+	{	
+		game_handle = null;
+	}
+	
+	public ScreenTemplate(final MyGdxGame game)
+	{
+		game_handle = game;
+		camera = new OrthographicCamera();
+		camera.setToOrtho(false,800,600);
+		set_start_time();
+	}
+	
+	
+	@Override
+	public void show() {
+		// TODO Auto-generated method stub
+		
+	}
+	
+	public long elapsed_time()
+	{
+		long NowTime = TimeUtils.nanosToMillis(TimeUtils.nanoTime());
+		return(NowTime-StartTime);
+	}
+	
+	public boolean enough_time_passed()
+	{
+		if (elapsed_time()>ENOUGH_TIME)		
+			return true;
+		else 
+			return false;
+	
+	}
+	
+	public void set_start_time()
+	{
+		StartTime = TimeUtils.nanosToMillis(TimeUtils.nanoTime());
+	}
+	
+	public void process_input(float delta)
+	{			
+		if (Gdx.input.isKeyPressed(Keys.ESCAPE)&&enough_time_passed()) {
+			game_handle.setScreen(new OptionsScreen(game_handle,this));			
+		}	
+	}
+	
+	public void update(float delta)
+	{
+		
+	}
+	
+	public void render_me(float delta)
+	{
+		Gdx.gl.glClearColor(0, 0, 0.2f, 1);
+		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
+
+		camera.update();
+		game_handle.batch.setProjectionMatrix(camera.combined);
+
+		game_handle.batch.begin();
+		game_handle.font.draw(game_handle.batch, "Game Over! ", 100, 150);
+		game_handle.font.draw(game_handle.batch, "Press F1 to play again", 100, 100);
+		game_handle.batch.end();
+	}
+
+	@Override
+	public void render(float delta) {
+		process_input(delta);
+		update(delta);
+		render_me(delta);
+		
+	}
+
+	@Override
+	public void resize(int width, int height) {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void pause() {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void resume() {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void hide() {
+		// TODO Auto-generated method stub
+		
+	}
+
+	@Override
+	public void dispose() {
+		// TODO Auto-generated method stub
+		
+	}
+
+}