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Iphone and Ipad development Game with Cocos2D
 

Iphone and Ipad development Game with Cocos2D

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    Iphone and Ipad development Game with Cocos2D Iphone and Ipad development Game with Cocos2D Presentation Transcript

    •  
      • Intro to IOS App Development
      • Intro Cocos2D
      • Let’s make a Cocos2D game
      • Conclusion
      • Resources
      • IOS 2D Gamming
    • -120 million ios devices -250 apps sold every second -250000 total apps
      • Why IOS?
      • So, what do you need to get started
      • IOS Technology Stack
      • Why Cocos2D?
      -iOS game development framework based on original cocos2d for python developed by Ricardo Quesada Based on OpenGL 1.1 -Open Source, latest version -Multiplatforms: iOS, uPhone, Win32. Coming soon: Bada, Android cocos2d-x, in C++, multiplatform cocos2d-android-1, in Java, for Android cocos2d-javascript, in Javascript, for Web cocos2d-iphone, in Python for iphone and ipad - It is easy to use, to create simple graphics applications
      • Why Cocos2D?
      -Active community http://www.cocos2d-iphone.org/forum/
      • Why Cocos2D?
      -Wiki http://www.cocos2d-iphone.org/wiki/doku.php/
    • -Features / Engine Model
    • -Quick intro to Objective-C Apple’s object oriented implementation of C Influenced by Smalltalk style messaging Originally built for NeXTSTEP Used for Mac OS X and IOS development Moderate
    • -Type files Header files. Header files contain class, type, function, and constant declarations. Source files. This is the typical extension used for source files and can contain both Objective-C and C code. Source files. A source file with this extension can contain C++ code in addition to Objective-C and C code. This extension should be used only if you actually refer to C++ classes or features from your Objective-C code. .h .m .mm When you want to include header files in your source code, you typically use a  #import  directive
    • -Declarate Objects
    • -Class Interfaces When you want to include header files in your source code, you typically use a  #import  directive
    • -Call Methods
    • -Methods declarate syntax
    • -Class implementation
    • -Example 1 - Class #import <Foundation/Foundation.h> class Hello { private: id greeting_text; // holds an NSString public: Hello() { greeting_text = @&quot;Hello, world!&quot;; } Hello(const char* initial_greeting_text) { greeting_text = [[NSString alloc] initWithUTF8String:initial_greeting_text]; } void say_hello() { printf(&quot;%sn&quot;, [greeting_text UTF8String]); } }; @interface Greeting : NSObject { @private Hello *hello; } - (id)init; - (void)dealloc; - (void)sayGreeting; - (void)sayGreeting:(Hello*)greeting; @end @implementation Greeting - (id)init { self = [super init]; if (self) { hello = new Hello(); } return self; } - (void)dealloc { delete hello; [super dealloc]; } - (void)sayGreeting { hello->say_hello(); } - (void)sayGreeting:(Hello*)greeting { greeting->say_hello(); } @end
    • -Example 1 - Main int main() { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; Greeting *greeting = [[Greeting alloc] init]; [greeting sayGreeting]; // > Hello, world! Hello *hello = new Hello(&quot;Bonjour, monde!&quot;); [greeting sayGreeting:hello]; // > Bonjour, monde! delete hello; [greeting release]; [pool release]; return 0; }
    • Structure -Game has Scenes -Each Scene has some nuber of Layer -Layers capture user interaction and contain sprites -Director manages the scenes
    • Director & Scenes Game made up of «game screens» called Screnes Each Scene can be considered a separate app Director handles main windows and executes Scenes
    • Director -Manages moving between Scenes -Pausing and running Scenes -Sets up OpenGL ES -Layer ask Director to move on
    • Scenes Each Scene contains several full screen Layers Layers define appearance, behavior and user input Yaers contain Sprites wich are the game elements
    • Layers -Take up the entire screen -Setup to handle touch and accelerometer -Can contain other layers and sprites
    • Important Classes -CocosNode -Scene -Layer -Director -AtlasSprite -AtlasSPriteManager
    • CocosNode -Lost of properties -Position, Scale, Camera, OpenGl z position, children -Most objects in cocos2d inherit form CocosNode
    • Scene
    • Layer
    • Director
    • AtlasSprite
    • AtlasSpriteManager
    • Sprite VS AtlasSprite -Sprite -AtlasSprite -In general, dont’t use Sprites -AtlasSPrites way faster -It’s all about the OpenGL ES
    • -Setup project -New project -Project Structure -Adding Background -Adding Our Hero -Adding Bad Guys (Game Logic) -Killing Bad Guys (Adding UI) -Animating Out Hero -Animating Bad Guys Dying -Adding Body Count -Adding Sound & Music
    • -New project -Execute Xcode, and selected new project cocos aplication
    • -Project structure -General
    • -Project structure –AlphaGeeksAppDelegate.m
    • -Project structure –HelloWordScene.h
    • -Project structure –HelloWordScene.m
    • -Adding Background
    • -Adding Our Hero
    • -Adding Bad Guys (Game Logic)
    • -Killing Bad Guys (Adding UI)
    • -Animating Out Hero
    • -Animating Bad Guys Dying
    • -Adding Body Count
    • -Adding Sound & Music
    • http://developer.apple.com http://www.slideshare.net/360conferences/introtoduction-to-cocos2d?src=related_normal&rel=5237272 http://www.slideshare.net/Greenwell/iphone-and-ipad-game-development-with-cocos2d http://www.cocos2d-iphone.org/ http://cocos2d.org/