停止对SKSpriteKit的冲动，单击 [英] stop impulse on SKSpriteKit click

问题描述

我正在尝试在游戏中创建一个暂停按钮.当您单击屏幕时，它将在动子spriteNode上施加一个脉冲.问题是，当我单击暂停按钮时，它仍然会施加脉冲.我该如何在不创建冲动的情况下创建暂停按钮.

i'm trying to create an pause button in my game. at the moment when you click on the screen it will apply an impulse on the mover spriteNode. The problem is that it still applying the impulse when i click the pause button. How can i create an pause button without creating the impulse also.

我曾尝试将if语句更改为else if，然后将最后一个脉冲部分变成else部分，但这是行不通的.

i've tried changing the if statements to an else if and then making the last impulse part the else part, but this wont work.

touchBegan方法:

touchBegan method:

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

    //if fire button touched, bring the rain
    if ([node.name isEqualToString:@"repeat"]) {
        SKTransition *reveal = [SKTransition fadeWithDuration:2.0 ];
        MyScene *newScene = [[MyScene 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:@"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 (noImpulse == 1) {
        if (started == 1) {
            mover.physicsBody.restitution = 0.0;
            mover.physicsBody.velocity = CGVectorMake(0, 0);
            [mover.physicsBody applyImpulse:CGVectorMake(0, 15)];
        }
    }

}

PAUSEDMENU方法:

PAUSEDMENU METHOD:

-(void)pausedMenu
{

self.scene.paused = YES;
mover.scene.paused = YES;
[repeatButton removeFromParent];
[homeButton removeFromParent];
[menuBackground removeFromParent];
menuBackground = [SKSpriteNode spriteNodeWithColor:[SKColor colorWithWhite:0.0 alpha:0.3] size:CGSizeMake(self.frame.size.width*2, self.frame.size.height*2)];


[self addChild:menuBackground];

[pauseButton removeFromParent];

startButton = [SKSpriteNode spriteNodeWithImageNamed:@"staart"];
startButton.name = @"start";
startButton.position = CGPointMake(20, self.size.height-20);
startButton.size = CGSizeMake(40, 40);
[self addChild:startButton];



repeatButton = [SKSpriteNode spriteNodeWithImageNamed:@"repeat"];
repeatButton.name = @"repeat";
repeatButton.position = CGPointMake(self.size.width/2+30, self.size.height/2);
repeatButton.size = CGSizeMake(repeatButton.size.width/2, repeatButton.size.height/2);
[self addChild:repeatButton];

homeButton = [SKSpriteNode spriteNodeWithImageNamed:@"home"];
homeButton.name = @"home";
homeButton.position = CGPointMake(self.size.width/2-30, self.size.height/2);
homeButton.size = CGSizeMake(homeButton.size.width/2, homeButton.size.height/2);
[self addChild:homeButton];

}

推荐答案

签出 https://developer.apple.com/library/ios/documentation/SpriteKit/Reference/SKView/Reference/Reference.html#//apple_ref/occ/instp/SKView/paused 如果您暂停包含游戏的SKView，则所有状态都会真正暂停，并且您可以在取消暂停菜单后恢复它的状态.您必须在另一个SKView中显示暂停菜单，然后在其中包含您的游戏.

Check out https://developer.apple.com/library/ios/documentation/SpriteKit/Reference/SKView/Reference/Reference.html#//apple_ref/occ/instp/SKView/paused If you pause your SKView that contains the game, all the state will be truly paused and you will be able to resume it after the pause menu has been dismissed. You'll have to present the pause menu in another SKView then the one that your game is contained in.

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