Unity中的多个触发器

Question

参考图片

我的游戏中有一个特定的对象,我正在尝试查看该对象是否触发了多个触发器.我尝试使用下面的代码但由于某种原因它不起作用.

void OnTriggerEnter2D(Collider2D col)
{
    if (col.tag == "speed")
    {
        //do something
    }
    else if (col.tag == "speed" && col.tag == "point")
    {
        //do something
    }
}

如何识别对象是否仅命中"Col1"或"Col1"和"Col2"

Answer 1

OnTriggerEnter仅在对象与一个特定触发器发生碰撞时调用.因此,对撞机的(标记col)不能speed和point在同一时间.

您必须使用布尔变量跟踪对象是否与您的触发器发生冲突,例如:

private bool collidingWithSpeed;
private bool collidingWithPoint;

void OnTriggerEnter2D(Collider2D col)
{
    if (col.CompareTag("speed"))
    {
        collidingWithSpeed = true ;
        //do something
    }
    else if (col.CompareTag("point"))
    {
        collidingWithPoint = true ;
        //do something
    }

    if( collidingWithSpeed && collidingWithPoint )
    {
         // Do something when your object collided with both triggers
    }
}
// Don't forget to set the variables to false when your object exits the triggers!
void OnTriggerExit2D(Collider2D col)
{
    if (col.CompareTag("speed"))
    {
        collidingWithSpeed = false;
    }
    else if (col.CompareTag("point"))
    {
        collidingWithPoint = false;
    }
}