Making SpriteSheets Work cocos2d - cocos2d-iphone

Question

So I’ve been working on my cocos2d game for a little while now just using a static one frame sprite because I hadn’t gotten the graphics for the full spritesheet yet. Now I have the spritesheet, and am having trouble implementing it.
The way I currently make my “Player” (the sprite) is by having a separate player class, shown below
Player.h
#interface Player : CCSprite{
CCAction *_WalkAction;
}
#property (nonatomic, assign) CCAction *WalkAction;
#property (nonatomic, assign) CGPoint velocity;
#property (nonatomic, assign) CGPoint desiredPosition;
#property (nonatomic, assign) BOOL onGround;
#property (nonatomic, assign) BOOL forwardMarch;
#property (nonatomic, assign) BOOL mightAsWellJump;
#property (nonatomic, assign) BOOL isGoingLeft;
-(void)update:(ccTime)dt;
-(CGRect)collisionBoundingBox;
#end
And Player.m (I won’t show the full thing, because it’s pretty long, it just defines everything about the character)
-(id)initWithFile:(NSString *)filename {
if (self = [super initWithFile:filename]) {
self.velocity = ccp(0.0, 0.0);
}
return self;
}
//THIS IS ONLY A FRACTION OF MY UPDATE METHOD, THE REST OF IT IS ALL SETTING VELOCITY AND WHATNOT FOR MY PHYSICS ENGINE, BUT THIS IS THE ONLY RELEVANT PART
-(void)update:(ccTime)dt {
if (self.forwardMarch) {
self.velocity = ccpAdd(self.velocity, forwardStep);
//[self runAction: _WalkAction];
}
}
Now in my GameLevelLayer.m I init the sprite like this (This is where we get filename from from the init in player.m):
//In my init
map = [[CCTMXTiledMap alloc] initWithTMXFile:#"level1.tmx"];
[self addChild:map];
player = [[Player alloc] initWithFile:#"banker1.png"];
player.position = ccp(100, 50);
[map addChild:player z:15];
So that all works perfectly fine. The problem comes when I try to turn that sprite into a sprite with a spritesheet. So I try to do this in player.m
-(id)initWithFile:(NSString *)filename {
if (self = [super initWithFile:filename]) {
self.velocity = ccp(0.0, 0.0);
[[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile: #"BankerSpriteSheet_default.plist"];
CCSpriteBatchNode *spriteSheet = [CCSpriteBatchNode batchNodeWithFile:#"BankerSpriteSheet_default.png"];
[self addChild:spriteSheet];
NSMutableArray *walkAnimFrames = [NSMutableArray array];
for(int i = 1; i <=6; ++i) {
[walkAnimFrames addObject: [[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName: [NSString stringWithFormat:#"banker%d.png", i]]];
CCAnimation *walkAnim = [CCAnimation animationWithFrames:walkAnimFrames delay:0.1f];
self = [CCSprite spriteWithSpriteFrameName:#"banker1.png"];
//HERE IS WHERE self.WalkAction IS DEFINED
self.WalkAction = [CCRepeatForever actionWithAction:[CCAnimate actionWithAnimation:walkAnim restoreOriginalFrame:NO]];
[spriteSheet addChild:self];
}
}
return self;
}
//And then run it in my update method
if (self.forwardMarch) {
self.velocity = ccpAdd(self.velocity, forwardStep);
[self runAction: _WalkAction];
}
Just for reference, self.forwardMarch is a bool that is set every time the user pushes the button to move the player, so whenever its true I move the player like this.
But when I try this I get the error
'NSInvalidArgumentException', reason: '-[CCSprite setWalkAction:]: unrecognized selector sent to instance 0x88fab50'
Any Help is appreciated.
I also posted this on the cocos2d forums if you like their code display system more (color coded and whatnot)
http://www.cocos2d-iphone.org/forums/topic/making-spritesheets-work/
EDIT:
Okay so I have made a little progress, but I'm still a bit stuck. I've defined the batchnodes and all the actions in the init of GameLevelLayer.m
[[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile: #"BankerSpriteSheet_default.plist"];
CCSpriteBatchNode *spriteSheet = [CCSpriteBatchNode batchNodeWithFile:#"BankerSpriteSheet_default.png"];
[self addChild:spriteSheet];
[player addChild:spriteSheet];
NSMutableArray *walkAnimFrames = [NSMutableArray array];
for(int i = 1; i <=6; ++i) {
[walkAnimFrames addObject: [[CCSpriteFrameCache sharedSpriteFrameCache] spriteFrameByName: [NSString stringWithFormat:#"banker%d.png", i]]];
CCAnimation *walkAnim = [CCAnimation animationWithFrames:walkAnimFrames delay:0.1f];
player = [[Player alloc] initWithSpriteFrameName:#"banker1.png"];
player.WalkAction = [CCRepeatForever actionWithAction:[CCAnimate actionWithAnimation:walkAnim restoreOriginalFrame:NO]];
//[spriteSheet addChild:player];
}
//player = [[Player alloc] initWithFile:#"koalio_stand.png"];
player.position = ccp(100, 50);
player.scale = 0.2;
[map addChild:player z:15];
And then in my Player.m I run
[self runAction: self.WalkAction];
//I've also tried [self runAction: _WalkAction]; The result is the same
I used NSLogs to find out that the above section ([self runAction: self.WalkAction]; is being called but not finishing. This is where my crash happens, but there is NO ouput to the console as to why there is a crash.. literally just says (lldb)

Answer 1

The problem is one line above the actual error. You assign self with the result from [CCSprite spriteWith...] which replaces the existing self and replaces it with a CCSprite. Instead change the init line to self = [super initWithSpriteFrameName:..]