Unity Physics.XXXcast 深水

染指流年灬发布时间：2019-11-27 17:22:25 ，浏览量：4

在使用Unity的RayCast 或者BoxCast SphereCast等函数的时候他里面传入的layerMask参数不是简单的使用LayerMask.NameToLayer转化后直接传入的，而是还需要经过位运算。这和一些其他使用layer的情况不一样 Layer的文档在官文里面有明确说明，但是在API文档里面没有说明，所以使用layer的人可能会踩坑在这里插入图片描述

public static int GetRealLayer(string layerName)
    {
        int bitCount = LayerMask.NameToLayer(layerName);
        int realLayer = 1


    
        
        
        
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