CCMoveto not moving

Question

我从 CoCos2d 开发开始，我认为我在节点空间和操作方面有一些问题，这是我的代码，没有任何移动，尽管我在运行代码时似乎没有错误，任何评论都值得赞赏：

    +(id) create {
    return [[self alloc] init];}
    -(id) init {
        if ((self = [super init]))
        {
        CGSize scSize = [[CCDirector sharedDirector] winSize];
    self.position = ccp(0,scSize.height);;

    touchArea = [CCSprite spriteWithFile:@"touchArea.png"]; 
    [touchArea setAnchorPoint:ccp(0, 0.5)];
    [self addChild:touchArea];

    obj_1 = [CCSprite spriteWithFile:@"obj1.png"];
    obj_2 = [CCSprite spriteWithFile:@"obj2.png"];
    obj_3 = [CCSprite spriteWithFile:@"obj3.png"];
    obj_tab = [NSMutableArray arrayWithObjects:obj_1, obj_2, obj_3, nil];

        for (int i=0; i < obj_tab.count; i++)
        {
            CCSprite *obj = [obj_tab objectAtIndex:i];
            float offSetPos = ((float)(i+1)) / (obj_tab.count +1);
            CGPoint pos = ccp(scSize.width*offSetPos, 0);
            obj.position = pos;
            [obj setAnchorPoint:ccp(0.5, -0.25)];
            [touchArea addChild:obj];
        }
    velocidad = 3;
    destino = ccp(0,-100);
    //[self scheduleUpdate];
    [self moveIt] // <-- Edited to call another method
 }   
    return self;
}
-(void) moveit{
    CCMoveTo *moverAction = [CCMoveTo actionWithDuration:5 position:ccp(0,0)];
    CCCallFunc *onEndAction = [CCCallFunc actionWithTarget:self selector:@selector(onEndMove:)];
    CCSequence *moveSequence = [CCSequence actions: moverAction, onEndAction, nil];
    [touchArea runAction:moveSequence];
{
-(void) update:(ccTime)delta {
}
-(void)onEndMove:(id)sender{
    NSLog(@"OnEndMove fired");
}
-(void) onEnter{
    [[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:-1 swallowsTouches:YES];
}
-(void) onExit {
    [[CCTouchDispatcher sharedDispatcher] removeDelegate:self];
}

-(BOOL) ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event{
    CGRect boundingBox = touchArea.boundingBox;
    boundingBox.origin = CGPointZero;
    BOOL isTouchHandled = CGRectContainsPoint(boundingBox, [touchArea convertTouchToNodeSpace: touch]);
    //NSLog(@"touchLocation y = %f", touchLocation.y);
    //NSLog(@"touchArea y = %f", touchArea.position.y);
    if (isTouchHandled){
        NSLog(@"Touch Handled");
    }
    return isTouchHandled;
}
@end

Answer 1

我假设上面显示的代码类"self"源自CCNode。确保"self"正在运行，它必须是 CCNode 的后代，并且在添加到正在运行的节点时将运行。 这是CCNode的onEnter（取自1.0.1版本）中发生的情况：

-(void) onEnter
{
    [children_ makeObjectsPerformSelector:@selector(onEnter)];  
    [self resumeSchedulerAndActions];
    isRunning_ = YES;
}

这是为节点启用计划程序和操作的位置。如果从未调用它，则您的操作将不会运行。

您可以将 moveIt 代码移动到 onEnter 方法，该方法将在对象运行时调用。

-(void) onEnter{
    CCLOG(@"%@<onEnter> : invoked",self.class);
    [self moveIt];
    [super onEnter];   
}

Answer 2

-(void) update:(ccTime)delta多久被调用一次？（可能从您的scheduleUpdate方法开始。 您很可能每秒多次调用该[touchArea runAction:moveSequence];，这会将大量CCMoveTos排队。

您可能应该将runAction:完全移出那里，或者至少在update:方法中添加一些逻辑，以检查touchArea是否应该启动另一个runAction:。