From e031cb4400d0607cb777490e4250e76c1db3c93d Mon Sep 17 00:00:00 2001
From: Matt Low <mattjlow94@gmail.com>
Date: Tue, 24 Dec 2019 00:59:13 +0400
Subject: [PATCH] Add State + MenuState, use AssetManager

---
 core/src/com/me/pacman/PacDude.java         | 27 +++++++-------
 core/src/com/me/pacman/state/MenuState.java | 37 +++++++++++++++++++
 core/src/com/me/pacman/state/State.java     | 41 +++++++++++++++++++++
 3 files changed, 91 insertions(+), 14 deletions(-)
 create mode 100644 core/src/com/me/pacman/state/MenuState.java
 create mode 100644 core/src/com/me/pacman/state/State.java

diff --git a/core/src/com/me/pacman/PacDude.java b/core/src/com/me/pacman/PacDude.java
index da29b27..899e2b7 100644
--- a/core/src/com/me/pacman/PacDude.java
+++ b/core/src/com/me/pacman/PacDude.java
@@ -1,16 +1,16 @@
 package com.me.pacman;
 
-import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.Game;
 import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.assets.AssetManager;
 import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.OrthographicCamera;
-import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
-import com.badlogic.gdx.math.Matrix4;
 import com.badlogic.gdx.utils.viewport.FitViewport;
 import com.badlogic.gdx.utils.viewport.Viewport;
+import com.me.pacman.state.MenuState;
 
-public class PacDude extends ApplicationAdapter {
+public class PacDude extends Game {
 
 	public static final String TITLE = "Pac-Dude";
 	public static final String VERSION = "v0.0.1";
@@ -18,32 +18,31 @@ public class PacDude extends ApplicationAdapter {
 	public static final int LEVEL_WIDTH = 224;
 	public static final int LEVEL_HEIGHT = 248;
 
+	public AssetManager assets;
+	public SpriteBatch batch;
+
 	public OrthographicCamera cam;
 	public Viewport viewport;
 
-	public SpriteBatch batch;
-	public Texture level;
-	public Texture logo;
-
 	@Override
 	public void create () {
 		cam = new OrthographicCamera();
 		viewport = new FitViewport(LEVEL_WIDTH, LEVEL_HEIGHT, cam);
 		viewport.apply(true);
 
+		assets = new AssetManager();
 		batch = new SpriteBatch();
-		level = new Texture("level.png");
-		logo = new Texture("logo.png");
-		logo.setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Linear);
+
+		setScreen(new MenuState(this));
 	}
 
 	@Override
 	public void render () {
 		Gdx.gl.glClearColor(0, 0, 0, 1);
 		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
+
 		batch.begin();
-		batch.draw(level, 0, 0);
-		batch.draw(logo, 0, 124, 224, 120);
+		super.render();
 		batch.end();
 	}
 
@@ -59,6 +58,6 @@ public class PacDude extends ApplicationAdapter {
 	@Override
 	public void dispose () {
 		batch.dispose();
-		level.dispose();
+		assets.dispose();
 	}
 }
diff --git a/core/src/com/me/pacman/state/MenuState.java b/core/src/com/me/pacman/state/MenuState.java
new file mode 100644
index 0000000..026160a
--- /dev/null
+++ b/core/src/com/me/pacman/state/MenuState.java
@@ -0,0 +1,37 @@
+package com.me.pacman.state;
+
+import com.badlogic.gdx.graphics.Texture;
+import com.me.pacman.PacDude;
+
+public class MenuState extends State {
+
+    private Texture level;
+    private Texture logo;
+
+    public MenuState(PacDude game) {
+        super(game);
+    }
+
+    @Override
+    public void setup() {
+        game.assets.load("level.png", Texture.class);
+        game.assets.load("logo.png", Texture.class);
+        game.assets.finishLoading();
+
+        level = game.assets.get("level.png", Texture.class);
+        logo = game.assets.get("logo.png", Texture.class);
+        logo.setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Linear);
+    }
+
+    @Override
+    public void render() {
+        game.batch.draw(level, 0, 0);
+        game.batch.draw(logo, 0, 124, 224, 120);
+    }
+
+    @Override
+    public void update(float dt) {
+
+    }
+
+}
diff --git a/core/src/com/me/pacman/state/State.java b/core/src/com/me/pacman/state/State.java
new file mode 100644
index 0000000..30087a9
--- /dev/null
+++ b/core/src/com/me/pacman/state/State.java
@@ -0,0 +1,41 @@
+package com.me.pacman.state;
+
+import com.badlogic.gdx.ScreenAdapter;
+import com.me.pacman.PacDude;
+
+public abstract class State extends ScreenAdapter {
+
+    protected final PacDude game;
+    private boolean disposed;
+
+    public State(PacDude game) {
+        this.game = game;
+        this.setup();
+    }
+
+    @Override
+    public final void render(float delta) {
+        update(delta);
+        if (!disposed) {
+            render();
+        }
+    }
+
+    @Override
+    public void dispose() {
+        this.disposed = true;
+    }
+
+    public PacDude getGame() {
+        return game;
+    }
+
+    public abstract void setup();
+
+    public abstract void render();
+
+    public abstract void update(float dt);
+
+}
+
+