Question

我会做一点游戏,这里是一些例子,说明:

-(id) init
{
       self.arrowProjectileArray = [[[NSMutableArray alloc] init] autorelease];
       self.batchNode = [CCSpriteBatchNode batchNodeWithTexture:[[CCTextureCache sharedTextureCache] addImage:@"arrow.png"]];
       [self addChild:_batchNode z:2];
        for (CCSprite *projectile in _arrowProjectileArray) {
        [_batchNode removeChild:projectile cleanup:YES];
        }
        [_arrowProjectileArray removeAllObjects];
        self.nextProjectile = nil; 
        }
    }

-(void) callEveryFrame:(ccTime)dt{
    for (int i = 0; i < [_arrowProjectileArray count];i++) {
           CCSprite *cursprite = [_arrowProjectileArray objectAtIndex:i];
           if (cursprite.tag == 1) {
           float x = theSpot.x+10;
           float y = theSpot.y+10;
           cursprite.position = ccp(x, y);
           }
        }

    - (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
    {
    [_batchNode addChild:_nextProjectile z:1 tag:1];
        [_arrowProjectileArray addObject: _nextProjectile];
        [self spriteMoveFinished];
    }
    -(void) dealloc
    {
        self.arrowProjectileArray = nil;
        self.nextProjectile = nil;
        [super dealloc];
    }

The only code that I included was code that is relevant to the arrow s projection. The arrow shoots fine, the problem is every time I shoot the stupid thing, I think it shoots a new arrow, but puts multiple arrows onto of that 1 arrow and makes it look like a fat ugly arrow pixel thing. What am I doing wrong? I m not too familiar with NSMutableArray, but I m currently stuck.

Answer 1

I solved my own problem by doing a little bit of research, I also got rid of the batch node.

Answer 2

在惯用方法中,你创建了一个新的NSMutable Array,并指派给它自用。然后,你用一只 lo子将arrow射弹推向如下线。如果加上:方法不会增加任何东西,那么你的代码就存在逻辑错误,因为你穿透箭射阵,正在穿透空阵,这意味着你在该法典中没有做任何事。

你们应该把你打算做的事情和你的法典正在做的事情增加一倍。

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