iOS的SpriteKit动画不会出现 [英] iOS SpriteKit animation does not appear

问题描述

我加载使用纹理从TextureAtlas一个动画。

但动画不会出现在屏幕上。

我只当我的NSLog的纹理会出现！看起来像一个bug。

是否有人提出了类似的经历吗？

  SKTextureAtlas *地图集= [SKTextureAtlas atlasWithRetinaCorrection：spriteSheetName_];
如果（[atlas.textureNames计数] == 0）回报;
NSArray的* R = [自我getSprites：WEAPON_FIREANIMATION ofDict：atlas.textureNames];
如果（[R计数] == 0）回报;
SKSpriteNode * firstSprite =（SKSpriteNode *）[自childNodeWithName：tFIRSTSPRITE];
[firstSprite removeActionForKey：aFIRE_ANIM];NSMutableArray里* walkAnimFrames = [NSMutableArray的阵列]
INT K = 0;
如果（self.weaponAnimDuration == 0）
{
    K =（self.weaponShootInterval / 0.1F）/ [R计数]
}其他
{
    K =（self.weaponAnimDuration / 0.1F）/ [R计数]
}
的for（int i = 0; I＆LT; k;我++）
{
    对于（的NSString * r中的sname）
    {
        [walkAnimFrames ADDOBJECT：[SKTexture textureWithImageNamed：SNAME]];
    }}
的NSLog（@％@，walkAnimFrames）;SKAction * weaponAnim = [SKAction animateWithTextures：walkAnimFrames timePerFrame：0.1F];
[firstSprite runAction：weaponAnim withKey：aFIRE_ANIM];
 

---

 ＃进口SKTextureAtlas + MySKTextureAtlas.h
@implementation SKTextureAtlas（MySKTextureAtlas）+（SKTextureAtlas *）atlasWithRetinaCorrection：（* NSString的）名称
{
    如果（[UIScreen mainScreen] respondsToSelector：@selector（比例）] == YES＆放大器;＆安培; [UIScreen mainScreen]规模] == 2.00）
    {
        命名= [的NSString stringWithFormat：@％@@ 2X，名字]
    }    * NSString的路径= [[一个NSBundle mainBundle] pathForResource：名称ofType：@atlasc];
    如果（路径==无）返回零;    返回[SKTextureAtlas atlasNamed：姓名]
}
 

---

  @implementation的NSArray（工具）
 - （NSArray的*）animationTextureFrames
{
    NSMutableArray里·RR = [NSMutableArray的新]
    对于（自我的NSString *名称）
    {
        SKTexture * TEX = [SKTexture textureWithImageNamed：姓名]
        [RR ADDOBJECT：TEX];
    }
    返回RR;
}
 

解决方案

我发现的bug！

我不得不preLOAD纹理。

  [SKTexture preloadTextures：explosionTextures withCompletionHandler：^（无效）{}];
 

I'm loading an animation using textures from a TextureAtlas.

But the animation does not appear on screen.

I appears only when I NSLog the Textures! Looks like a bug.

Does somebody made similar experience?

SKTextureAtlas *atlas = [SKTextureAtlas atlasWithRetinaCorrection:spriteSheetName_];
if ([atlas.textureNames count] == 0) return;
NSArray *r = [self getSprites:WEAPON_FIREANIMATION ofDict:atlas.textureNames];
if ([r count] == 0)return;


SKSpriteNode *firstSprite = (SKSpriteNode*)[self childNodeWithName:tFIRSTSPRITE];
[firstSprite removeActionForKey:aFIRE_ANIM];

NSMutableArray *walkAnimFrames = [NSMutableArray array];
int k =0;
if (self.weaponAnimDuration == 0)
{
    k = (self.weaponShootInterval / 0.1f)/[r count];
} else
{
    k = (self.weaponAnimDuration / 0.1f)/[r count];
}
for (int i = 0; i<k; i++)
{
    for (NSString *sname in r)
    {
        [walkAnimFrames addObject:[SKTexture textureWithImageNamed:sname]];
    }

}
NSLog(@"%@",walkAnimFrames);

SKAction *weaponAnim = [SKAction animateWithTextures:walkAnimFrames timePerFrame:0.1f];
[firstSprite runAction:weaponAnim withKey:aFIRE_ANIM];

---

#import "SKTextureAtlas+MySKTextureAtlas.h"
@implementation SKTextureAtlas (MySKTextureAtlas)

+(SKTextureAtlas*)atlasWithRetinaCorrection:(NSString*)name
{
    if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)] == YES && [[UIScreen mainScreen] scale] == 2.00)
    {
        name = [NSString stringWithFormat:@"%@@2x",name];
    }

    NSString *path = [[NSBundle mainBundle] pathForResource:name ofType:@"atlasc"];
    if (path == Nil) return Nil;

    return [SKTextureAtlas atlasNamed:name];
}

---

@implementation NSArray (Tools)


-(NSArray*)animationTextureFrames
{
    NSMutableArray *rr = [NSMutableArray new];
    for (NSString *name in self)
    {
        SKTexture *tex = [SKTexture textureWithImageNamed:name];
        [rr addObject:tex];
    }
    return rr;
}

解决方案

I found the bug!

I had to preload the textures.

 [SKTexture preloadTextures:explosionTextures withCompletionHandler:^(void){}];

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