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 — updating the text info


We will build the functionality to update text info into a method that will update not only the time left, but also the game's score value.

  1. 1. Add a new method called UpdateInfoText in the game class.

    Method UpdateInfoText:Int()
    
  2. 2. Set the text property of txtScore with the score value.

    txtScore.SetText(score)
    
  3. 3. Calculate the number of seconds left by subtracting the current millisecond value from the end time, after adding 750 (to make it more accurate), and then dividing everything by 1000, to get seconds.

    seconds = (endTime-Millisecs()+750)/1000
    
  4. 4. Determine the number of minutes left using the value of seconds.

    minutes = seconds/60
    
  5. 5. Subtract the result of minutes times 60 to get the seconds left.

    seconds -= (minutes*60)
    
  6. 6. Depending on how many seconds are left, set the text property of txtTime.

    If seconds > 9 Then
    txtTime.SetText(minutes+":"+seconds)
    Else
    txtTime.SetText(minutes+":0"+seconds)
    Endif
    
  7. 7. Close this method.

    Return 0
    End
    End
    

What...