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 — spawning an explosion


  1. 1. Add the method SpawnExplosion to the engine class. The parameters are the number of particles and their position.

    Method SpawnExplosion:Int(amount:Int, xp:Int, yp:Int)
    
  2. 2. Set the default layer to g.layerGFX.

    SetDefaultLayer(g.layerGFX)
    
  3. 3. Start a FOR loop as a counter ranging from 1 to amount.

    For Local i:Int = 1 To amount
    
  4. 4. Create a new particle object.

    Local explo:ftObject = CreateImage(g.atlas, 128, 0,32,32, xp, yp)
    
  5. 5. Set its scale, angle, spin, and speed randomly.

    explo.SetScale(Rnd(2,12)/10)
    explo.SetAngle(Rnd(0,359))
    explo.SetSpin(Rnd(-4,4))
    explo.SetSpeed(Rnd(1,2))
    
  6. 6. Play the explosion sound.

    g.sndExplo.Play()
    
  7. 7. Create an object timer, so that the particles will be removed after a random time. The timer ID is g.tmObjRemove.

    CreateObjTimer(explo, g.tmObjRemove, Rnd(100,2000))
    
  8. 8. Close the FOR statement and the method.

    Next
    Return 0
    End
    

What just happened?

This new method will spawn some particles that will be deleted via a timer.

Tick tock… acting...