Learn cocos2d 2: Game Development for iOS

By Steffen Itterheim

Create compelling 2nd video games with Learn cocos2d 2: Game improvement with iOS. This booklet exhibits you ways to exploit the robust new cocos2d, model 2 video game engine to boost video games for iPhone and iPad with tilemaps, digital joypads, video game middle, and more.  It teaches you:

  • The approach and most sensible practices of cellular online game improvement, together with sprite batching, texture atlases, parallax scrolling, contact and accelerometer enter.
  • How to reinforce your video games utilizing the Box2D and Chipmunk physics engines and different cocos2d-related instruments and libraries.
  • How so as to add UIKit perspectives to cocos2d and the way so as to add cocos2d to UIKit apps.
  • The fine details of the Kobold2D improvement setting for cocos2d and its pre-configured libraries, together with cocos3d and Lua.

Best of all, this booklet will have you ever making video games correct from the very commence. It publications you step by step during the production of pattern video games. those enjoyable examples are modeled after well known App shop video games and train you key ideas of the new cocos2d 2 game engine and correct instruments like TexturePacker (texture atlas), PhysicsEditor (physics collision shapes), Particle dressmaker (particle effects), Glyph fashion designer (bitmap fonts), and others.

This ebook bargains a rock-solid advent to making video games made fullyyt with cocos2d and very little iOS SDK and OpenGL code. It additionally info substitute implementations, identifies the easiest loose and advertisement instruments for cocos2d video game improvement, positive aspects insurance of the author’s more desirable cocos2d online game engine (Kobold2D), or even is helping you improve your game’s marketability at the App Store.


What you’ll learn

  • The procedure and top practices of cellular online game improvement, together with sprite batching, texture atlases, parallax scrolling, contact and accelerometer enter.
  • How to augment your video games utilizing the Box2D and Chipmunk physics engines and different cocos2d-related instruments and libraries.
  • How so as to add UIKit perspectives to cocos2d and the way so as to add cocos2d to UIKit apps.
  • The bits and bobs of the Kobold2D improvement atmosphere for cocos2d and its pre-configured libraries, together with cocos3d and Lua.


Who this publication is for

The e-book is aimed toward starting online game builders trying to find a better or even extra strong solution to create compelling 2nd photos utilizing OpenGL and Objective-C. it's assumed that the reader could have a few wisdom of object-oriented programming and the Apple and iPhone/iPad developer surroundings.

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Allowing Accelerometer enter and developing and Positioning the participant Sprite -(id) init { if ((self = [super init])) { CCLOG(@"%@: %@", NSStringFromSelector(_cmd), self); self. isAccelerometerEnabled = sure; participant = [CCSprite spriteWithFile:@"alien. png"]; [self addChild:player z:0 tag:1]; CGSize screenSize = [CCDirector sharedDirector]. winSize; float imageHeight = participant. texture. contentSize. peak; participant. place = CGPointMake(screenSize. width / 2, imageHeight / 2); } go back self; } The participant sprite is further as a toddler with a tag of one, in an effort to later be used to spot and separate the participant sprite from all different sprites. For the filename, the traditional solution snapshot filename is used, as a consequence alien. png. Cocos2d will immediately load the alien-hd. png on Retina units. If there’s no accompanying –hd file, cocos2d will easily load the standardresolution snapshot as a substitute. if so the picture will seem smaller on Retina units than will probably be on non-Retina units. It’s reliable perform to supply –hd variations of all photo resources. warning Filenames on iOS units are case-sensitive. in case you attempt to load Alien. png or ALIEN. PNG, it is going to paintings within the simulator yet no longer on any iOS equipment as the genuine identify is alien. png in all lowercase. That’s why it’s a good suggestion to stay to a naming conference like regularly retaining all filenames in all lowercase. Why lowercase? simply because filenames in all uppercase tend to be tougher to learn, they usually converse to you particularly loudly. you place the preliminary place of the participant sprite via centering the x place at part the monitor width, which places the sprite within the middle horizontally. Vertically you will want the ground of the participant sprite’s texture to align with the ground of the reveal. for those who keep in mind from bankruptcy three, you recognize that the sprite texture is headquartered at the node’s place. Positioning the sprite vertically at zero might reason the ground half the sprite texture to be under the reveal. That’s no longer what you want—you are looking to flow it up by way of part the feel top. You do this with the decision to participant. texture. contentSize. peak, which returns the sprite texture’s content material measurement. What precisely is the content material dimension? In bankruptcy three, i discussed that the feel dimensions of iOS units can basically be powers of 2. however the real snapshot dimension should be 112 bankruptcy four: Your First video game under the feel size—for instance, the case of the picture being a hundred × a hundred pixels whereas the feel needs to be 128×128 pixels. The contentSize estate of the feel returns the unique image’s measurement of 100×100 pixels. in general, you’ll are looking to paintings with the content material dimension, no longer the feel measurement. whether your photograph is an influence of 2, you can use contentSize as the texture may be a texture atlas containing a number of pictures. Texture atlases are lined in bankruptcy 6. by way of taking part the picture top and atmosphere this because the place at the y-axis, the sprite photograph will align smartly with the ground of the display. Tip fending off utilizing fixed positions at any place you could is sweet perform.

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