Question

EDIT 4: I added a breakpoint to CCSpriteFrameCache spriteFrameByName method and cannot step over the following step (its clear to me that somehow the spriteFrames gets deleted from the CCSpriteFrameCache):

EDIT 3: Before voting to close the question actually PLEASE TRY the code below (EDIT2) using Cocos2d 2.0 and the file and plist file attached.

EDIT 2: I created a brand new GameScene test class so you can all try out the issue. It crashes as soon as the animation starts to repeat. I update the title as consequence as well.

//  GameScene2.h
//
#import <Foundation/Foundation.h>
#import "cocos2d.h"

@interface GameScene2 : CCScene {

}
@end

//  GameScene2.m
//
#import "GameScene2.h"

@implementation GameScene2
-(id)init {
    self = [super init];
    if (self != nil) {
        [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"artfile.plist"];
        CCSpriteBatchNode* batchNode = [CCSpriteBatchNode batchNodeWithFile:@"artfile.png"];
        [self addChild:batchNode];

        CCSprite * test = [CCSprite spriteWithSpriteFrameName:@"frame0.png"];
        test.anchorPoint = CGPointMake(0.5f, 0.5f);
        test.position = CGPointMake(160.0f, 160.0f);
        [batchNode addChild:test z:1];


        NSMutableArray* frames = [[NSMutableArray alloc]initWithCapacity:2];
        CCSpriteFrame* frame = [[CCSpriteFrameCache sharedSpriteFrameCache]spriteFrameByName:@"frame0.png"];
        [frames addObject:frame];
        CCSpriteFrame* frame2  = [[CCSpriteFrameCache sharedSpriteFrameCache]spriteFrameByName:@"frame1.png"];
        [frames addObject:frame2];

        CCAnimation* anim = [CCAnimation animationWithSpriteFrames:frames delay:0.3f];
        [[CCAnimationCache sharedAnimationCache] addAnimation:anim name:@"test"];
        CCAnimate * animate = [CCAnimate actionWithAnimation:anim];
        CCRepeatForever * repeat = [CCRepeatForever actionWithAction:animate];
        //CCSequence * seq = [CCSequence actions:anim, nil];

        [test runAction:repeat];
    }
    return self;
}
@end

The artfile.png looks as following:

And the plist file is:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>frames</key>
    <dict>

        <key>frame0.png</key>
        <dict>
            <key>aliases</key>
            <array>

            </array>
            <key>spriteColorRect</key>
            <string>{{3, 40}, {76, 28}}</string>
            <key>spriteOffset</key>
            <string>{0, 0}</string>
            <key>spriteSize</key>
            <string>{150, 94}</string>
            <key>spriteSourceSize</key>
            <string>{150, 94}</string>
            <key>spriteTrimmed</key>
            <false/>
            <key>textureRect</key>
            <string>{{0, 96}, {150, 94}}</string>
            <key>textureRotated</key>
            <false/>
        </dict>

        <key>frame1.png</key>
        <dict>
            <key>aliases</key>
            <array>

            </array>
            <key>spriteColorRect</key>
            <string>{{10, 33}, {98, 32}}</string>
            <key>spriteOffset</key>
            <string>{0, 0}</string>
            <key>spriteSize</key>
            <string>{150, 94}</string>
            <key>spriteSourceSize</key>
            <string>{150, 94}</string>
            <key>spriteTrimmed</key>
            <false/>
            <key>textureRect</key>
            <string>{{0, 192}, {150, 94}}</string>
            <key>textureRotated</key>
            <false/>
        </dict>

        <key>frame2.png</key>
        <dict>
            <key>aliases</key>
            <array>

            </array>
            <key>spriteColorRect</key>
            <string>{{4, 17}, {146, 48}}</string>
            <key>spriteOffset</key>
            <string>{0, 0}</string>
            <key>spriteSize</key>
            <string>{150, 94}</string>
            <key>spriteSourceSize</key>
            <string>{150, 94}</string>
            <key>spriteTrimmed</key>
            <false/>
            <key>textureRect</key>
            <string>{{0, 0}, {150, 94}}</string>
            <key>textureRotated</key>
            <false/>
        </dict>

    </dict>
    <key>metadata</key>
    <dict>
        <key>version</key>
        <string>1.5.2</string>
        <key>format</key>
        <integer>3</integer>
        <key>size</key>
        <string>{1024, 1024}</string>
        <key>name</key>
        <string>artfile</string>
        <key>premultipliedAlpha</key>
        <false/>
        <key>target</key>
        <dict>
            <key>name</key>
            <string>default</string>
            <key>textureFileName</key>
            <string>artfile_default</string>
            <key>textureFileExtension</key>
            <string>.png</string>
            <key>coordinatesFileName</key>
            <string>artfile_default</string>
            <key>coordinatesFileExtension</key>
            <string>.plist</string>
            <key>premultipliedAlpha</key>
            <false/>
        </dict>
    </dict>
</dict>
</plist>

END OF EDIT2:

ORIGINAL QUESTION:

I get:

Assertion failure in -[CCSprite setTexture:], /Users/…/libs/cocos2d/CCSprite.m:934

It has definetely to do with the batchNode because without it it used to work…

I know that the sprite frames for the animation should be in the same sprite sheet, and that’s the case. I have no idea how to solve this apart that it must be something to do with the use of batch node.

//
//  Navigator.h
@interface Navigator : CCLayer {

}
//Batch Nodes
@property(readwrite, nonatomic) CCSpriteBatchNode* batchNode;


//  Navigator.m
@implementation Navigator
@synthesize batchNode;

+(id) scene {
    CCScene *scene = [CCScene node];
    Navigator *layer = [Navigator node];//??
    [scene addChild:layer];
    return scene;
}

-(void) loadStuff{
    [[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:@"art1-hd.plist"];
    batchNode = [CCSpriteBatchNode batchNodeWithFile:@"art1-hd.png"];
    [self addChild:batchNode];

    CCSprite * test = [CCSprite spriteWithSpriteFrameName:@"emptyCircle0.png"];
    test.anchorPoint = CGPointMake(0.5f, 0.5f);
    test.position = CGPointMake(160.0f, 160.0f);
    [batchNode addChild:test z:1];


    NSMutableArray* frames = [[NSMutableArray alloc]initWithCapacity:2];
    CCSpriteFrame* frame = [[CCSpriteFrameCache sharedSpriteFrameCache]spriteFrameByName:@"emptyCircle0.png"];
    [frames addObject:frame];
    CCSpriteFrame* frame2  = [[CCSpriteFrameCache sharedSpriteFrameCache]spriteFrameByName:@"emptyCircle1.png"];
    [frames addObject:frame2];

    CCAnimation* anim = [CCAnimation animationWithSpriteFrames:frames delay:0.3f];
    //[[CCAnimationCache sharedAnimationCache] addAnimation:anim name:@"test"];
    CCAnimate * animate = [CCAnimate actionWithAnimation:anim];
    CCRepeatForever * repeat = [CCRepeatForever actionWithAction:animate];
    //CCSequence * seq = [CCSequence actions:anim, nil];

    [test runAction:repeat];
}


-(id)init
{
    CCLOG(@"Navigator init");
    if((self=[super init])){
        CCLOG(@"%@: %@", NSStringFromSelector(_cmd), self);
        [self loadStuff];
        }
    return self;
}

EDIT: I checked the source code of CCSprite setTexture and here is what I see. However the console log does say only NSAssert without giving the log message of what is the problem. Adding a breakpoint it seems to fail the first NSAssert but I am not 100% sure as the App goes immediately to this image:

-(void) setTexture:(CCTexture2D*)texture
{
    // If batchnode, then texture id should be the same
    NSAssert( !batchNode_ || texture.name == batchNode_.texture.name , @"CCSprite: Batched sprites should use the same texture as the batchnode");  

    // accept texture==nil as argument
    NSAssert( !texture || [texture isKindOfClass:[CCTexture2D class]], @"setTexture expects a CCTexture2D. Invalid argument");

    if( ! batchNode_ && texture_ != texture ) {
        [texture_ release];
        texture_ = [texture retain];

        [self updateBlendFunc];
    }
}

Answer 1

I found the reason why this was happening… I was calling the [self startGame] method from a previous scene and then the cleanup method was being called calling also the piece of code where I was removing sprites from the texture cache.

Stupid me that I didn’t thought about this properly. The object Navigator scene gets created and the texture loaded, but in the meanwhile (Before the animation actually starts) the previous scene cleanup call executes the [CCSpriteFrameCache purgeSharedSpriteFrameCache]; call.

Stupid me!

-(void) startGame
{
    [[CCDirector sharedDirector] replaceScene:[CCTransitionFade transitionWithDuration:1.0 scene:[Navigator scene] withColor:ccc3(255, 255, 255)]];
}

-(void) cleanup
{
//    [[CCSpriteFrameCache sharedSpriteFrameCache] removeSpriteFrames];
    [super cleanup];


    [CCTextureCache purgeSharedTextureCache];
    [CCSpriteFrameCache purgeSharedSpriteFrameCache];
    [CCAnimationCache purgeSharedAnimationCache];

    //Remove music
}