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 — modifying the UpdateGame method


To modify the UpdateGame method, we will follow the ensuing steps:

  1. 1. We need to modify the UpdateGame method in the mainClass.monkey file.

    Method UpdateGame:Int()
    
  2. 2. Check if a random number is equal to 100 and the current active bombs are not more than the level number.

    If Rnd(0,100) > 99 And (GetBombsCount() < levelNumber) Then
    
  3. 3. Create a new bomb.

    CreateBomb()
    Endif
    UpdateLaunchers()
    UpdateBombs()
    UpdateRockets()
    UpdateExplosions()
    
  4. 4. If no city is left, remove all rockets, bombs, and explosions, and set the game mode to gmGameOver.

    If GetCityCount() = 0 Then
    RemoveRockets()
    RemoveBombs()
    RemoveExplosions()
    gameMode = gmGameOver
    Endif
    
  5. 5. Check if the next level is reached by comparing levelNumber times 10 with the total number of destroyed bombs.

    If totalBombsDestroyed >= (levelNumber * 10) Then
    
  6. 6. Add 3000 points for each city left, and add 5 new rockets to each launcher. Also, raise the level number.

    score += GetCityCount() * 3000...