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 — creating a gem


This method will create the corresponding image object, set the collision properties for the touch check, and return the object.

  1. 1. Add the method CreateTile to the game class. The parameters are the x and y coordinates of the image object and its tile ID.

    Method CreateTile:ftObject(x:Int, y:Int, tile:Int = -100)
    
  2. 2. Define a local object of the type ftObject.

    Local obj:ftObject
    
  3. 3. If tile is set to -100, determine a random value ranging from 0 to 6.

    If tile = -100 Then tile = Rnd(6)
    
  4. 4. Set the game layer as the default layer.

    eng.SetDefaultLayer(layerGame)
    

    We have six gem images on the sprite sheet. The tile parameter will not only set the object's tag property, but will also set the sprite coordinates.

  5. 5. If tile equals 6, top it to 5.

    If tile = 6 Then tile = 5
    
  6. 6. Depending on the tile parameter, create an image object from the sprite atlas.

    If tile < 4 Then
    obj=eng.CreateImage(atlas,tile*64,64,64,64,x*64,y*64)
    Elseif tile = 4
    obj=eng.CreateImage(atlas,0,128...