using UnityEngine; public static class LayerMaskExtensions { /// /// Checks if the given layer number is contained in the LayerMask. /// /// The LayerMask to check. /// The layer number to check if it is contained in the LayerMask. /// True if the layer number is contained in the LayerMask, otherwise false. public static bool Contains(this LayerMask mask, int layerNumber) { return mask == (mask | (1 << layerNumber)); } }