Book Image

Monkey Game Development: Beginner's Guide

By : Michael Hartlef
Book Image

Monkey Game Development: Beginner's Guide

By: Michael Hartlef

Overview of this book

Monkey is a programming language and toolset that allows its user to develop modern 2D games easily for mobile and other platforms like iOS, Android, HTML5, FLASH, OSX, Windows and XNA. With Monkey you can create best selling games in a matter of weeks, instead of months.Monkey Game Development Beginner's Guide provides easy-to-follow step by step instructions on how to create eight different 2D games and how to deploy them to various platforms and markets. Learning about the structure of Monkey and how everything works together you will quickly create eight classical games and publish them to the modern app markets. Throughout the book you will learn important game development techniques like collision detection, handling player input with mouse, keyboard or touch events and creating challenging computer AI. The author explains how to emit particle effects, play sound and music files, use sprite sheets, load or save high-score tables and handle different device resolutions. Finally you will learn how to monetize your games so you can generate revenue.
Table of Contents (16 chapters)
Monkey Game Development
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
3
Game #2, Rocket Commander
4
Game #3, CometCrusher
5
Game #4, Chain Reaction
6
Game #5, Balls Out!
8
Game #7, Air Dogs 1942
9
Game #8, Treasure Chest

Time for action — detailing the OnUpdate method


During the OnUpdate method, we will do different things depending on the gameMode field. If the mode is gmPlay, we will update all objects and do collision checks. In other modes, we mostly check for certain keys that are hit on the keyboard to switch the game into a different mode.

  1. 1. Add a Select statement with the gameMode field as a parameter.

    Method OnUpdate:Int()
    Local d:Float = Float(eng.CalcDeltaTime())/60.0
    If isSuspended = False Then
    Select gameMode
    
  2. 2. Check against the gmPlay constant.

    Case gmPlay
    eng.Update(Float(d))
    

    The call to the Update method of the engine is now part of the gmPlay segment.

  3. 3. Now, check for any collisions happening on the game layer. The response for this will be detailed inside the engine class.

    eng.CollisionCheck(layerGame)
    
  4. 4. Check if the Esc key was hit.

    If KeyHit(KEY_ESCAPE) Then
    
  5. 5. If yes, activate the title screen and stop the plane engine sound.

    layerTitle.SetActive(True)
    sndEngine.Stop()
    
  6. 6. Also, set the...