Question

我有一些物理身体节点。 Sprite Kit立即调用didbegincontact方法。我希望在我释放触摸时调用该方法，以便它可以在释放单击时执行操作，而不是立即调用方法导致某些操作设置问题。

- (void)didBeginContact:(SKPhysicsContact *)contact
{   NSLog(@"%hhd", _touching);
    if(_touching == NO)
     return;
something here
}

- (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
_touching = YES;
 NSLog(@"%hhd", _touching);

}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
_touching = NO;
NSLog(@"%hhd", _touching);
something here
}

Answer 1

设置全局变量，即
```
BOOL _touching;
```
当您触摸/释放（触摸结束并开始）时，您将该var设置为YES / NO;

在didbegincontact中，使用类似

的内容

if(_touching == YES) {
    // what I want to happen when I am touching
} 
else {
   // i must not be touching so do this
}

这是基本的设置 - 不过我认为游戏逻辑就是问题所在，也许会想出一种解决问题的不同方式

@interface XBLMyScene()

@property (strong, nonatomic) SKNode *world;
@property (strong, nonatomic) SKSpriteNode *ball;
@property BOOL touching;
@end

@implementation XBLMyScene

-(id)initWithSize:(CGSize)size {    
if (self = [super initWithSize:size]) {

    self.world = [SKNode node];
    [self addChild:self.world];

    self.backgroundColor = [SKColor colorWithRed:0.15 green:0.15 blue:0.3 alpha:1.0];

    self.physicsBody = [SKPhysicsBody bodyWithEdgeFromPoint:CGPointZero toPoint:CGPointMake(500, 0)];

    self.ball = [SKSpriteNode spriteNodeWithColor:[SKColor redColor] size:CGSizeMake(40, 40)];
    self.ball.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:CGSizeMake(40, 40)];
    self.ball.position = CGPointMake(200, 300);
    [self.world addChild:self.ball];

    self.touching = NO;

}
return self;
}

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

    self.touching = YES;
}

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

    self.touching = NO;
}

- (void) didSimulatePhysics
{
if (self.touching) {
    NSLog(@"I am touching");
}
else {
    NSLog(@"I am not touching");
}
}

在触摸结束时执行SpriteKit物理身体碰撞/接触

1 个答案: