Book Image

Cocos2d for iPhone 1 Game Development Cookbook

By : Nathan Burba
Book Image

Cocos2d for iPhone 1 Game Development Cookbook

By: Nathan Burba

Overview of this book

Cocos2d for iPhone is a robust but simple-to-use 2D game framework for iPhone. It is easy to use, fast, flexible, free, and Appstore approved. More than 2500 AppStore games already use it, including many best-seller games. Do you want to take your cocos2d game development skills to the next level and become more professional in cocos2d game design? Cocos2d for iPhone 1 Game Development Cookbook will help you reach that next level. You will find over 100 recipes here that explain everything from the drawing of a single sprite to AI pathfinding and advanced networking. Full working examples are emphasized. Starting with the first chapter, Graphics, you will be taken through every major topic of game development. You will find both simple and complex recipes in the book. Each recipe is either a solution to a common problem (playing video files, accelerometer steering) or a cool advanced technique (3D rendering, textured polygons). This cookbook will have you creating professional quality iOS games quickly with its breadth of working example code.
Table of Contents (15 chapters)
Cocos2d for iPhone 1 Game Development Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Performing gestures


Gestures can act as functional input shortcuts. Simple gestures like swiping and scrolling are built into many Apple UI tools. Some games, notably Castlevania: Dawn of Sorrow (DS) and Okami (PS2, Wii) use gestures as core gameplay mechanics. In this recipe, we will implement a simple and admittedly crude gesture system.

Getting ready

Please refer to the project RecipeCollection01 for full working code of this recipe. Also note that the GestureLine and GestureShapeLayer classes have been omitted for brevity. GestureLine simply contains two CGPoint structures. GestureShapeLayer draws a circle or an array of lines.

How to do it...

Execute the following code:

#import "GestureLine.h"
#import "GestureShapeLayer.h"

@implementation Ch2_Gestures

-(CCLayer*) runRecipe {
  //Init message
  message = [CCLabelBMFont labelWithString:@"Draw a rectangle, triangle, circle or line" fntFile:@"eurostile_30.fnt"];
  message.position = ccp(200,270);
  message.scale = 0.65f;
  [message setColor...