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 — enhancing the OnObjectTimer method


The OnObjectTimer method of the engine class needs to be detailed. For the bullets, the canShoot field of the game class needs to be set to TRUE and they also need to be deleted.

  1. 1. Check whether the timer ID is equal to g.tmDelete. If yes, call the Remove method of the object.

    Method OnObjectTimer:Int(timerId:Int, obj:ftObject)
    If timerId = g.tmDelete Then obj.Remove()
    
  2. 2. Check whether the timer ID is equal to g.canShoot. If yes, set g.canShoot to True.

    If timerId = g.tmCanShoot Then g.canShoot = True
    Return 0
    End
    

What just happened?

Enhancing the OnObjectTimer method will let you delete objects and set the canShoot field of the game class to True, so the enemy plane can spawn bullets again.

It is gone!—a transition is done

All particles are controlled by transitions. That is why you need to detail the OnObjectTransition method of the engine class.