cocos2d iphone-4 更新图片资源文件问题

Question

这是我的代码...

CCSprite *u = [CCSprite spriteWithFile:@"1_S.png"  rect:CGRectMake(0, 0, 27, 27)];

            u.position = ccp((45.7*i+45.7*(i+1))/2, 467);
            u.tag = i;

            [self addChild:u];

在我的资源文件夹中，我有 2 个名为

的图像文件

1_S.png

和

1_S@2x.png

。当我阅读文档时

https://developer.apple.com/iphone/library/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/SupportingResolutionIndependence/SupportingResolutionIndependence.html#//apple_ref/doc/uid/TP40007072-CH10

我认为当我在 iPhone 4 中运行此代码时，图像名为

1_S@2x.png

应该加载......但它不是......第一个图像已加载......为什么？这是版本问题吗？？？

Answer 1

OS4 代码中存在一个错误，导致 Retina 显示器无法与 cocos2d 一起使用

有关问题 910，请参阅此链接：

http://www.cocos2d-iphone.org/wiki/doku.php/release_notes:0_99_4#

Issue #910 is still open.

The workaround is to edit CCTextureCache.m and make the following changes:

//# work around for issue #910
#if 0        // <---- change it to     #if 1
UIImage *image = [UIImage imageNamed:path];
tex = [ [CCTexture2D alloc] initWithImage: image ];
#else
// prevents overloading the autorelease pool
UIImage *image = [ [UIImage alloc] initWithContentsOfFile: fullpath ];
tex = [ [CCTexture2D alloc] initWithImage: image ];
[image release];
#endif //

Again, issue #910 is not a cocos2d bug, but an iOS4 bug. ”@2x” images are not loaded if you use UIImage initWithContentOffile (but the documentation says it should work). So the work around is to use UIImage imageNamed, but it is not enabled by default because it will consume much more memory.