停止精灵触摸的脉冲[重复]

Question

我正在创建一个有暂停按钮的游戏。为了检查它是否被触摸，我正在检查触摸的位置以及它是否等于暂停的按钮名称。

当点击 pausedButton 时，它会调用一个暂停场景的方法。

问题在于，在 touchBegan 方法中，每当您触摸屏幕时，它都会施加一个脉冲，因此当我按下 pauseButton 并取消暂停时，applyforce 会随之而来。这对于游戏来说并不理想。我已经尝试过像 shouldImpulse 这样的布尔值，但还没有让它工作。这是我的touchBegan方法：

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
    UITouch *touch = [touches anyObject];
    CGPoint location = [touch locationInNode:self];
    SKNode *node = [self nodeAtPoint:location];

    if ([node.name isEqualToString:@"home"]) {

        SKTransition *reveal = [SKTransition fadeWithDuration:2.0 ];
        Menu *newScene = [[Menu alloc] initWithSize: CGSizeMake(self.size.width,self.size.height)];
        //  Optionally, insert code to configure the new scene.
        [self.scene.view presentScene: newScene transition: reveal];
    }

    if ([node.name isEqualToString:@"pause"]) {
        [self pausedMenu];


    }

    if ([node.name isEqualToString:@"start"]) {
        [self startMenu];


    }

    showpipes = showpipes + 1;

    if (showpipes == 1) {
    self.physicsWorld.gravity = CGVectorMake( 0.0, -5.0 );

        SKAction* spawn = [SKAction performSelector:@selector(spawnPipes) onTarget:self];
        SKAction* delay = [SKAction waitForDuration:2.0];
        SKAction* spawnThenDelay = [SKAction sequence:@[spawn, delay]];
        SKAction* spawnThenDelayForever = [SKAction repeatActionForever:spawnThenDelay];
        [self runAction:spawnThenDelayForever];

    }

    started = 1;


        if (started == 1) {

            mover.physicsBody.restitution = 0.0;
            mover.physicsBody.velocity = CGVectorMake(0, 0);
            [mover.physicsBody applyImpulse:CGVectorMake(0, 15)];


        }




}

Answer 1

您可以使用简单的 IF、ELSE IF、ELSE 来做到这一点：

if([node.name isEqualToString:@"home"])
{
    // do stuff...
} else if ([node.name isEqualToString:@"pause"])
{
    // do stuff...
} else if ([node.name isEqualToString:@"start"])
{
    // do stuff...
} else
{
    // do whatever else here...
}