spriteKit中联系人的双重通知 [英] Double notification on contact in spriteKit

问题描述

当我的 SKSpriteNode 点击与 worldCategory 联系时，我似乎收到了双重通知，这是怎么回事?当我想在它触及 worldCategory 时运行一个动作时，这会产生问题，因为该动作正在被触发

I seem to get a double notification when my SKSpriteNode hits has contact with the worldCategory, how come is this? This creates problem when i want to run an action when it touches the worldCategory, since the action is being triggered

这是我在 InitWithSize 方法中的位掩码

Here is my bitmask in the InitWithSize method

    mover.physicsBody.categoryBitMask = birdCategory;
    bottom.physicsBody.categoryBitMask = worldCategory;

    mover.physicsBody.contactTestBitMask = worldCategory;

这里是联系方式:

- (void)didBeginContact:(SKPhysicsContact *)contact {
if (contact.bodyA.categoryBitMask == worldCategory) {



    mover.texture = [SKTexture textureWithImageNamed:@"birddead1"];
    NSLog(@"Contact");





    self.scene.paused = YES;
    [pauseButton removeFromSuperview];



}
}

在我的日志中显示了两行联系人"

In my log there is being shown two lines with "Contact"

推荐答案

将对象的 restitution 属性设置为零，如下所示:

Set your object's restitution property to zero like this:

self.physicsBody.restitution = 0;  //it's either self or the name of your object

如果这不能解决您的问题，请查看与您的对象相关的移动代码.寻找任何会导致来回"运动的情况，从而产生双重接触问题.

If that does not solve your issue, look at the movement code related to your object(s). Look for any situation that cause a 'back and forth' movement which can create the double contact issue.

作为最后的手段，您可以为您的联系人设置过滤器:

As a last resort you can set up a filter for your contacts:

1. 创建一个存储联系时间的变量.
2. 将联系人变量时间与 update: 方法中的当前时间进行比较.
3. 如果差异小于您指定的时间(例如 0.2 秒)，则允许联系并将您的联系时间变量设置为当前时间.如果差值低于过滤时间(0.2 秒)，则忽略该联系人.

这篇关于spriteKit中联系人的双重通知的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！