Add StickGame Assets

phr/StickGame/Assets/FishNet/Plugins/GameKit/Utilities/Layers.cs

@@ -0,0 +1,45 @@
+using UnityEngine;
+
+namespace GameKit.Utilities
+{
+
+    public static class Layers
+    {
+        /// <summary>
+        /// Converts a layer mask to a layer number.
+        /// </summary>
+        /// <param name="mask"></param>
+        /// <returns></returns>
+        public static int LayerMaskToLayerNumber(LayerMask mask)
+        {
+            return LayerValueToLayerNumber(mask.value);
+        }
+        /// <summary>
+        /// Converts a layer value int to a layer int.
+        /// </summary>
+        /// <param name="bitmask"></param>
+        /// <returns></returns>
+        public static int LayerValueToLayerNumber(int bitmask)
+        {
+            int result = bitmask > 0 ? 0 : 31;
+            while (bitmask > 1)
+            {
+                bitmask = bitmask >> 1;
+                result++;
+            }
+            return result;
+        }
+
+        /// <summary>
+        /// Returns if a LayerMask contains a specified layer.
+        /// </summary>
+        /// <param name="layerMask">LayerMask to check for layer in.</param>
+        /// <param name="layer">Layer to check within LayerMask.</param>
+        /// <returns></returns>
+        public static bool ContainsLayer(LayerMask layerMask, int layer)
+        {
+            return (layerMask == (layerMask | (1 << layer)));
+        }
+    }
+
+}