我编写了以下程序,该程序必须执行以下操作:当用户触摸移动精灵时,必须将其从场景中删除。
但是,当我运行我的代码时,会发生以下事情:当我触摸最上面的精灵时,它会消失,而不是邻居。我该如何解决?
这是代码。
UPD:我已经在较小的* .png文件上测试了这段代码,一切正常。但是在更大的* .png文件(像200x200像素,像iPhone模拟器一样)我有一个错误:对象在touchEvent上删除它与最近的邻居。
定义
#import <Foundation/Foundation.h>
#import "cocos2d.h"
@interface GameplayLayer : CCLayer {
NSMutableArray *arrayOfSprites;
}
@end
#import "GameplayLayer.h"
@implementation GameplayLayer
-(id)init
{
self = [super init];
self.isTouchEnabled=YES;
arrayOfSprites=[[NSMutableArray alloc] init];
if (self != nil)
{
int j=100;
for (int i=0; i<=2; i++) {
[arrayOfSprites addObject:[CCSprite spriteWithFile:@"sv_anim_1-hd.png"]];
[[arrayOfSprites objectAtIndex:i] setPosition:CGPointMake(j,j)];
[self addChild:[arrayOfSprites objectAtIndex:i] z:0 tag:i];
j+=100;
}
[self startRunning];
}
return self;
}
-(void)startRunning
{
CGSize screenSize=[[CCDirector sharedDirector] winSize];
for ( CCSprite * currentSprite in arrayOfSprites)
{
[currentSprite runAction:[CCMoveTo actionWithDuration:10 position:CGPointMake(screenSize.height,screenSize.width/2)]];
}
}
-(void) registerWithTouchDispatcher
{
[[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:0
swallowsTouches:YES];
}
-(BOOL) ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event {
return YES;
}
-(void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event {
CGPoint locationOfTouch=[self convertTouchToNodeSpace: touch];
for (CCSprite *currentSprite in arrayOfSprites)
{
if (CGRectContainsPoint(currentSprite.boundingBox, locationOfTouch))
{
NSLog(@"Sprite was touched");
[self removeChild:currentSprite cleanup:YES];
}
}
}
@end
答案 0 :(得分:0)
尝试此功能:
-(CGRect)getSpriteRect:(CCNode *)inSprite
{
CGRect sprRect = CGRectMake(
inSprite.position.x - inSprite.contentSize.width*inSprite.anchorPoint.x,
inSprite.position.y - inSprite.contentSize.height*inSprite.anchorPoint.y,
inSprite.contentSize.width,
inSprite.contentSize.height
);
return sprRect;
}
- (void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *myTouch = [touches anyObject];
CGPoint location = [myTouch locationInView:[myTouch view]];
location = [[CCDirector sharedDirector] convertToGL:location];
for (CCSprite *currentSprite in arrayOfSprites)
{
CGRect rect = [self getSpriteRect:currentSprite];
if (CGRectContainsPoint(rect, location))
{
NSLog(@"Sprite was touched");
[self removeChild:currentSprite cleanup:YES];
}
}
}