An Android Game Development Framework - Beginning Android Games

Game Development Reference

In-Depth Information

public class MrNom extends AndroidGame {

public Screen getStartScreen() {

return new MainMenu( this );

}

We hope you can see why it is beneficial to design a workable framework before diving headfirst

into programming the actual game. We can reuse this framework for all future games that are not

too graphically intensive. Now, let's discuss Listing 5-16, which shows the AndroidGame class,

split up by commentary.

Listing 5-16. AndroidGame.java; Tying Everything Together

package com.badlogic.androidgames.framework.impl;

import android.app.Activity;

import android.content.Context;

import android.content.res.Configuration;

import android.graphics.Bitmap;

import android.graphics.Bitmap.Config;

import android.os.Bundle;

import android.os.PowerManager;

import android.os.PowerManager.WakeLock;

import android.view.Window;

import android.view.WindowManager;

import com.badlogic.androidgames.framework.Audio;

import com.badlogic.androidgames.framework.FileIO;

import com.badlogic.androidgames.framework.Game;

import com.badlogic.androidgames.framework.Graphics;

import com.badlogic.androidgames.framework.Input;

import com.badlogic.androidgames.framework.Screen;

public abstract class AndroidGame extends Activity implements Game {

AndroidFastRenderView renderView;

Graphics graphics;

Audio audio;

Input input;

FileIO fileIO;

Screen screen;

WakeLock wakeLock;

The class definition starts by letting AndroidGame extend the Activity class and implement the

Game interface. Next, we define a couple of members that should already be familiar. The first

member is AndroidFastRenderView , to which we'll draw, and which will manage our main loop

thread for us. Of course, we set the Graphics , Audio , Input , and FileIO members to instances of

AndroidGraphics , AndroidAudio , AndroidInput , and AndroidFileIO . The next member holds the

currently active Screen . Finally, there's a member that holds a WakeLock that we use to keep the

screen from dimming.

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