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我正在尝试创建一个动画精灵类，它具有启动和停止动画的方法。当我将 CCSprite 变量从本地移动到 ivar 时，该类会引发异常。使用 CCSprite 变量作为局部变量，类工作，即精灵出现并被动画化。

该项目启用了 ARC，所有 coocs2d 文件都用 -fno-objc-arc 标记。我使用 TexturePacker 创建底层文件，尽管我认为这与问题无关。

我究竟做错了什么？

cocos2D 版本 2.01.00 Xcode 版本 4.6.2

类的调用方式：

CCSpriteBatchNode *animatedSprite = [[AnimatedSprite alloc] init];
animatedSprite.position = ccp(winSize.width / 2, winSize.height / 2);
[self addChild:animatedSprite];

类头

#import <Foundation/Foundation.h>
#import "cocos2d.h"

@interface AnimatedSprite : CCSpriteBatchNode
{
}

@end

有效的课程

#import "AnimatedSprite.h"

@interface AnimatedSprite()
{
    CCAction *action;
//    CCSprite *sprite;
}

@end

@implementation AnimatedSprite

- (id)init
{
    if (self = [super init])
    {
        [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"spriteSheet.plist"];
        self = [CCSpriteBatchNode batchNodeWithFile:@"spriteSheet.png"];

        NSMutableArray *animatedFrames = [NSMutableArray array];
        for (int i=1; i<=4; i++)
        {
            [animatedFrames addObject:
             [[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName:
              [NSString stringWithFormat:@"sprite%d.png",i]]];
        }
        CCSprite *sprite = [CCSprite spriteWithSpriteFrameName:@"sprite1.png"];
//        sprite = [CCSprite spriteWithSpriteFrameName:@"sprite1.png"];
        CCAnimation *animation = [CCAnimation animationWithSpriteFrames:animatedFrames delay:0.1f];
        action = [CCRepeatForever actionWithAction:[CCAnimate actionWithAnimation:animation]];
        [sprite runAction:action];
        [self addChild:sprite];
    }
    return self;
}

@end

抛出异常的类

#import "AnimatedSprite.h"

@interface AnimatedSprite()
{
    CCAction *action;
    CCSprite *sprite;
}

@end

@implementation AnimatedSprite

- (id)init
{
    if (self = [super init])
    {
        [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"spriteSheet.plist"];
        self = [CCSpriteBatchNode batchNodeWithFile:@"spriteSheet.png"];

        NSMutableArray *animatedFrames = [NSMutableArray array];
        for (int i=1; i<=4; i++)
        {
            [animatedFrames addObject:
              [[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName:
               [NSString stringWithFormat:@"sprite%d.png",i]]];
        }
//        CCSprite *sprite = [CCSprite spriteWithSpriteFrameName:@"sprite1.png"];
        sprite = [CCSprite spriteWithSpriteFrameName:@"sprite1.png"];
        CCAnimation *animation = [CCAnimation animationWithSpriteFrames:animatedFrames delay:0.1f];
        action = [CCRepeatForever actionWithAction:[CCAnimate actionWithAnimation:animation]];
        [sprite runAction:action];
        [self addChild:sprite];
    }
    return self;
}

@end

堆栈跟踪

#0  0x01efc0ab in objc_release ()
#1  0x01efcbd9 in (anonymous namespace)::AutoreleasePoolPage::pop(void*) ()
#2  0x024ae468 in _CFAutoreleasePoolPop ()
#3  0x0156f8e4 in -[NSAutoreleasePool release] ()
#4  0x00abbc16 in _UIApplicationHandleEvent ()
#5  0x03214df9 in _PurpleEventCallback ()
#6  0x03214ad0 in PurpleEventCallback ()
#7  0x02481bf5 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ ()
#8  0x02481962 in __CFRunLoopDoSource1 ()
#9  0x024b2bb6 in __CFRunLoopRun ()
#10 0x024b1f44 in CFRunLoopRunSpecific ()
#11 0x024b1e1b in CFRunLoopRunInMode ()
#12 0x00ab717a in -[UIApplication _run] ()
#13 0x00ab8ffc in UIApplicationMain ()
#14 0x000dcc66 in main at /iPhone Apps/Cocos/SpriteTest/SpriteTest/main.m:15
#15 0x000022b5 in start ()
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1 回答 1

-1

你为什么要创建一个做精灵动画的类？已经有很多东西可以为你工作。查看精灵和关卡助手。他们会自动为您制作动画。没有必要重新发明已经适合你的东西:)

于 2013-06-21T02:57:57.203 回答