凉鞋学spritekit 实现单点触摸/触控

来源：互联网发布：广州电脑锣编程培训编辑：程序博客网时间：2024/04/27 21:02

发现spritekit没有提供单点触控的解决方案

今天看NSObject的时候看到个hash,返回的是个NSUInteger值，就有了如下思路：

其中touchHash 是成员变量，类型为NSUInteger;

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    if (touchHash != 0) return;    UITouch *touch = [touches anyObject];    CGPoint rightPosition = [touch locationInNode:self];    NSLog(@"%ud",[touch hash]);    touchHash = [touch hash];}-(void) touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{    UITouch *touch = NULL;    for (UITouch *t in touches) {        if ([t hash] == touchHash) {            touch = t;        }    }    if (touch == NULL) {        return;    }    NSLog(@"%ud",[touch hash]);}-(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{    UITouch *touch = NULL;    for (UITouch *t in touches) {        if ([t hash] == touchHash) {            touch = t;        }    }

    if (touch == NULL) {        return;    }

    touchHash = 0;

    NSLog(@"%ud",[touch hash]);}

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