+init

1 files changed, 53 insertions, 0 deletions

diff --git a/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/Utility/ReflectionMethodsCache.cs b/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/Utility/ReflectionMethodsCache.cs
new file mode 100644
index 0000000..638fa03
--- /dev/null
+++ b/Assets/uGUI-2017.1/UnityEngine.UI/UI/Core/Utility/ReflectionMethodsCache.cs
@@ -0,0 +1,53 @@
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+
+namespace UnityEngine.UI
+{
+    internal class ReflectionMethodsCache
+    {
+        public delegate bool Raycast3DCallback(Ray r, out RaycastHit hit, float f, int i);
+        public delegate RaycastHit2D Raycast2DCallback(Vector2 p1, Vector2 p2, float f, int i);
+        public delegate RaycastHit[] RaycastAllCallback(Ray r, float f, int i);
+        public delegate RaycastHit2D[] GetRayIntersectionAllCallback(Ray r, float f, int i);
+
+        // We call Physics.Raycast and Physics2D.Raycast through reflection to avoid creating a hard dependency from
+        // this class to the Physics/Physics2D modules, which would otherwise make it impossible to make content with UI
+        // without force-including both modules.
+        public ReflectionMethodsCache()
+        {
+            var raycast3DMethodInfo = typeof(Physics).GetMethod("Raycast", new[] {typeof(Ray), typeof(RaycastHit).MakeByRefType(), typeof(float), typeof(int)});
+            if (raycast3DMethodInfo != null)
+                raycast3D = (Raycast3DCallback)UnityEngineInternal.ScriptingUtils.CreateDelegate(typeof(Raycast3DCallback), raycast3DMethodInfo);
+
+            var raycast2DMethodInfo = typeof(Physics2D).GetMethod("Raycast", new[] {typeof(Vector2), typeof(Vector2), typeof(float), typeof(int)});
+            if (raycast2DMethodInfo != null)
+                raycast2D = (Raycast2DCallback)UnityEngineInternal.ScriptingUtils.CreateDelegate(typeof(Raycast2DCallback), raycast2DMethodInfo);
+
+            var raycastAllMethodInfo = typeof(Physics).GetMethod("RaycastAll", new[] {typeof(Ray), typeof(float), typeof(int)});
+            if (raycastAllMethodInfo != null)
+                raycast3DAll = (RaycastAllCallback)UnityEngineInternal.ScriptingUtils.CreateDelegate(typeof(RaycastAllCallback), raycastAllMethodInfo);
+
+            var getRayIntersectionAllMethodInfo = typeof(Physics2D).GetMethod("GetRayIntersectionAll", new[] {typeof(Ray), typeof(float), typeof(int)});
+            if (getRayIntersectionAllMethodInfo != null)
+                getRayIntersectionAll = (GetRayIntersectionAllCallback)UnityEngineInternal.ScriptingUtils.CreateDelegate(typeof(GetRayIntersectionAllCallback), getRayIntersectionAllMethodInfo);
+        }
+
+        public Raycast3DCallback raycast3D = null;
+        public RaycastAllCallback raycast3DAll = null;
+        public Raycast2DCallback raycast2D = null;
+        public GetRayIntersectionAllCallback getRayIntersectionAll = null;
+
+        private static ReflectionMethodsCache s_ReflectionMethodsCache = null;
+
+        public static ReflectionMethodsCache Singleton
+        {
+            get
+            {
+                if (s_ReflectionMethodsCache == null)
+                    s_ReflectionMethodsCache = new ReflectionMethodsCache();
+                return s_ReflectionMethodsCache;
+            }
+        }
+    };
+}