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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;
}
}
};
}
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