如何接近-hd文件

Question

编辑：下面的第一个答案我已经更多地查看了stackoverflow并将问题改为°我怎样才能使用唯一的HD文件？“，并发现这个：How do I stop Cocos2D from requiring standard definition resources (SD images)?我现在将尝试提出的解决方案和如果它的工作原理，我将离开这个编辑的标题，并删除可能是误导性的最初的问题。

是我努力学习的Cocos2D和使用的书籍像cookbook和learn cocos2d一段时间。这些都是一个很好的开始，但有时我陷入像今天我会试图解释的那样的问题

我开始修改这个例子请参阅第166页的1书中的使用CCParallaxNode。我的目标是添加以下尺寸的四层：使用iOS 5.0和Cocos2d 1.01 RC库的iPhone模拟器上运行的960像素高和1280像素宽的窗口。

我没有用安装模板创建新项目和修改HelloWorldLayer.m类如下：

// Import the interfaces 
#import "HelloWorldLayer.h" 

// HelloWorldLayer implementation 
@implementation HelloWorldLayer 
+(CCScene *) scene 
{ 
    // 'scene' is an autorelease object. 
    CCScene *scene = [CCScene node]; 

    // 'layer' is an autorelease object. 
    HelloWorldLayer *layer = [HelloWorldLayer node]; 

    // add layer as a child to scene 
    [scene addChild: layer]; 

    // return the scene 
    return scene; 
} 

// on "init" you need to initialize your instance 
-(id) init 
{ 
    // always call "super" init 
    // Apple recommends to re-assign "self" with the "super" return value 
    if((self=[super init])) { 

     CCSprite* parallaxLayer01 = [CCSprite spriteWithFile:@"0-hd-red.png"]; 
     CCSprite* parallaxLayer02 = [CCSprite spriteWithFile:@"0-hd-red.png"]; 
     CCSprite* parallaxLayer03 = [CCSprite spriteWithFile:@"0-hd-red.png"]; 
     CCSprite* parallaxLayer04 = [CCSprite spriteWithFile:@"0-hd-red.png"]; 

     /** 
     CCSprite* parallaxLayer01 = [CCSprite spriteWithFile:@"0-hd.png"]; 
     CCSprite* parallaxLayer02 = [CCSprite spriteWithFile:@"1-hd.png"]; 
     CCSprite* parallaxLayer03 = [CCSprite spriteWithFile:@"2-hd.png"]; 
     CCSprite* parallaxLayer04 = [CCSprite spriteWithFile:@"3-hd.png"];  
     **/ 

     /** 
     CCSprite* parallaxLayer01 = [CCSprite spriteWithFile:@"2-hd.png"]; 
     CCSprite* parallaxLayer02 = [CCSprite spriteWithFile:@"2-hd.png"]; 
     CCSprite* parallaxLayer03 = [CCSprite spriteWithFile:@"2-hd.png"]; 
     CCSprite* parallaxLayer04 = [CCSprite spriteWithFile:@"2-hd.png"];  

**/ 
     /** 
     CCSprite* parallaxLayer01 = [CCSprite spriteWithFile:@"bar.png"]; 
     CCSprite* parallaxLayer02 = [CCSprite spriteWithFile:@"bar.png"]; 
     CCSprite* parallaxLayer03 = [CCSprite spriteWithFile:@"bar.png"]; 
     CCSprite* parallaxLayer04 = [CCSprite spriteWithFile:@"bar.png"];  
     **/ 
     /** 
     CCSprite* parallaxLayer01 = [CCSprite spriteWithFile:@"bar-hd.png"];  
     CCSprite* parallaxLayer02 = [CCSprite spriteWithFile:@"bar-hd.png"]; 
     CCSprite* parallaxLayer03 = [CCSprite spriteWithFile:@"bar-hd.png"]; 
     CCSprite* parallaxLayer04 = [CCSprite spriteWithFile:@"bar-hd.png"];  
     **/ 

     //Create a parallax node and add all four sprites 
     CCParallaxNode* parallaxNode = [CCParallaxNode node]; 
     [parallaxNode setPosition:ccp(0,0)]; 
     [parallaxNode addChild:parallaxLayer01 z:1 parallaxRatio:ccp(0, 0) positionOffset:ccp(0,0)]; 
     [parallaxNode addChild:parallaxLayer02 z:2 parallaxRatio:ccp(1, 0) positionOffset:ccp(0,0)]; 
     [parallaxNode addChild:parallaxLayer03 z:3 parallaxRatio:ccp(2, 0) positionOffset:ccp(0,0)]; 
     [parallaxNode addChild:parallaxLayer04 z:4 parallaxRatio:ccp(3, 0) positionOffset:ccp(0,0)]; 
     [self addChild:parallaxNode z:0 tag:1]; 

     //Move the node to the left then the right 
     //This creates the effect that we are moving to the right then the left 
     CCMoveBy* moveRight = [CCMoveBy actionWithDuration:5.0f position:ccp(-80, 0)]; 
     CCMoveBy* moveLeft = [CCMoveBy actionWithDuration:2.5f position:ccp(80, 0)]; 
     CCSequence* sequence = [CCSequence actions:moveRight, moveLeft, nil]; 
     CCRepeatForever* repeat = [CCRepeatForever actionWithAction:sequence]; 
     [parallaxNode runAction:repeat]; 

    } 
    return self; 
} 

// on "dealloc" you need to release all your retained objects 
- (void) dealloc 
{ 
    // in case you have something to dealloc, do it in this method 
    // in this particular example nothing needs to be released. 
    // cocos2d will automatically release all the children (Label) 

    // don't forget to call "super dealloc" 
    [super dealloc]; 
} 
@end 

我曾尝试使用4运行代码，使用GIMP的alpha通道PNG图像创建。它一开始工作，现在不再了。我不确定我做了什么来搞砸。

奇怪的是，它与图像5它确实工作。

我已经检查过，并且UIImage规范有建议使用1024 x 1024图像的限制。所以我做了并重新调整了图像6并创建了图像3这是在UIImage指定的限制内，但不起作用。

对于没有工作，我的意思是，该代码与以下错误消息崩溃：

2012-04-19 17:14:29.189 ParallaxNodeTest[3713:10a03] cocos2d: cocos2d v1.0.1 
2012-04-19 17:14:29.190 ParallaxNodeTest[3713:10a03] cocos2d: Using Director Type:CCDirectorDisplayLink 
2012-04-19 17:14:29.226 ParallaxNodeTest[3713:10a03] cocos2d: OS version: 5.1 (0x05010000) 
2012-04-19 17:14:29.227 ParallaxNodeTest[3713:10a03] cocos2d: GL_VENDOR: Apple Computer, Inc. 
2012-04-19 17:14:29.228 ParallaxNodeTest[3713:10a03] cocos2d: GL_RENDERER: Apple Software Renderer 
2012-04-19 17:14:29.229 ParallaxNodeTest[3713:10a03] cocos2d: GL_VERSION: OpenGL ES-CM 1.1 APPLE 
2012-04-19 17:14:29.229 ParallaxNodeTest[3713:10a03] cocos2d: GL_MAX_TEXTURE_SIZE: 4096 
2012-04-19 17:14:29.230 ParallaxNodeTest[3713:10a03] cocos2d: GL_MAX_MODELVIEW_STACK_DEPTH: 16 
2012-04-19 17:14:29.231 ParallaxNodeTest[3713:10a03] cocos2d: GL_MAX_SAMPLES: 4 
2012-04-19 17:14:29.233 ParallaxNodeTest[3713:10a03] cocos2d: GL supports PVRTC: YES 
2012-04-19 17:14:29.234 ParallaxNodeTest[3713:10a03] cocos2d: GL supports BGRA8888 textures: YES 
2012-04-19 17:14:29.235 ParallaxNodeTest[3713:10a03] cocos2d: GL supports NPOT textures: YES 
2012-04-19 17:14:29.235 ParallaxNodeTest[3713:10a03] cocos2d: GL supports discard_framebuffer: YES 
2012-04-19 17:14:29.235 ParallaxNodeTest[3713:10a03] cocos2d: compiled with NPOT support: NO 
2012-04-19 17:14:29.236 ParallaxNodeTest[3713:10a03] cocos2d: compiled with VBO support in TextureAtlas : YES 
2012-04-19 17:14:29.236 ParallaxNodeTest[3713:10a03] cocos2d: compiled with Affine Matrix transformation in CCNode : YES 
2012-04-19 17:14:29.237 ParallaxNodeTest[3713:10a03] cocos2d: compiled with Profiling Support: NO 
2012-04-19 17:14:29.268 ParallaxNodeTest[3713:10a03] cocos2d: surface size: 960x640 
2012-04-19 17:14:29.336 ParallaxNodeTest[3713:10a03] cocos2d: Filename(0-hd-red.png) contains -hd suffix. Removing it. See cocos2d issue #1040 
2012-04-19 17:14:29.337 ParallaxNodeTest[3713:10a03] cocos2d: CCFileUtils: Warning HD file not found: 0-red-hd.png 
2012-04-19 17:14:29.338 ParallaxNodeTest[3713:10a03] cocos2d: CCTexture2D. Can't create Texture. UIImage is nil 
2012-04-19 17:14:29.339 ParallaxNodeTest[3713:10a03] cocos2d: Couldn't add image:0-red.png in CCTextureCache 
2012-04-19 17:14:29.340 ParallaxNodeTest[3713:10a03] cocos2d: Filename(0-hd-red.png) contains -hd suffix. Removing it. See cocos2d issue #1040 
2012-04-19 17:14:29.340 ParallaxNodeTest[3713:10a03] cocos2d: CCFileUtils: Warning HD file not found: 0-red-hd.png 
2012-04-19 17:14:29.341 ParallaxNodeTest[3713:10a03] cocos2d: CCTexture2D. Can't create Texture. UIImage is nil 
2012-04-19 17:14:29.342 ParallaxNodeTest[3713:10a03] cocos2d: Couldn't add image:0-red.png in CCTextureCache 
2012-04-19 17:14:29.342 ParallaxNodeTest[3713:10a03] cocos2d: Filename(0-hd-red.png) contains -hd suffix. Removing it. See cocos2d issue #1040 
2012-04-19 17:14:29.343 ParallaxNodeTest[3713:10a03] cocos2d: CCFileUtils: Warning HD file not found: 0-red-hd.png 
2012-04-19 17:14:29.344 ParallaxNodeTest[3713:10a03] cocos2d: CCTexture2D. Can't create Texture. UIImage is nil 
2012-04-19 17:14:29.345 ParallaxNodeTest[3713:10a03] cocos2d: Couldn't add image:0-red.png in CCTextureCache 
2012-04-19 17:14:29.345 ParallaxNodeTest[3713:10a03] cocos2d: Filename(0-hd-red.png) contains -hd suffix. Removing it. See cocos2d issue #1040 
2012-04-19 17:14:29.346 ParallaxNodeTest[3713:10a03] cocos2d: CCFileUtils: Warning HD file not found: 0-red-hd.png 
2012-04-19 17:14:29.365 ParallaxNodeTest[3713:10a03] cocos2d: CCTexture2D. Can't create Texture. UIImage is nil 
2012-04-19 17:14:29.366 ParallaxNodeTest[3713:10a03] cocos2d: Couldn't add image:0-red.png in CCTextureCache 
2012-04-19 17:14:29.367 ParallaxNodeTest[3713:10a03] *** Assertion failure in -[CCParallaxNode addChild:z:parallaxRatio:positionOffset:], /Users/daniele/Desktop/ParallaxNodeTest/ParallaxNodeTest/libs/cocos2d/CCParallaxNode.m:91 
2012-04-19 17:14:29.369 ParallaxNodeTest[3713:10a03] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Argument must be non-nil' 
*** First throw call stack: 
(0x19e2022 0x1f7ccd6 0x198aa48 0x11af2cb 0x40661 0xb588e 0x3ba25 0xb5632 0xb4d3e 0x8164be 0x817274 0x826183 0x826c38 0x81a634 0x279aef5 0x19b6195 0x191aff2 0x19198da 0x1918d84 0x1918c9b 0x816c65 0x818626 0xb4816 0x24b5 0x1) 

我认为图像大小不是问题，这里我以前能够运行，但它的作品的事实与图像5，而不是与其他图像6暗示我这是如何使用GIMP创建PNG文件..

任何胶？我附上GIMP的截图设置4我使用（不是英语，将在下面提供翻译）：

厚于： 保存颜色作为背景，保存分辨率，节省创建日期，保存意见和保存的价值透明点的颜色。

不thicked： Interlacment（ADAM7），伽玛保存，保存层移动

Answer 1

为了使用视网膜图像，你必须包括-HD和非高清文件与您的项目。它们不一定是合适的尺寸，但它们必须都存在。

因此，如果您要使用名为0-red.png的文件，则必须包含0-red.png和0-red-hd.png。另外，请注意让-hd位于文件名的末尾。