using System;
using System.Reflection;
using UnityEngine;

namespace LuxWater
{
	public static class GeomUtil
	{
		private static Action<Plane[], Matrix4x4> _calculateFrustumPlanes_Imp;

		public static void CalculateFrustumPlanes(Plane[] planes, Matrix4x4 worldToProjectMatrix)
		{
			if (_calculateFrustumPlanes_Imp == null)
			{
				MethodInfo method = typeof(GeometryUtility).GetMethod("Internal_ExtractPlanes", BindingFlags.Static | BindingFlags.NonPublic, null, new Type[2]
				{
					typeof(Plane[]),
					typeof(Matrix4x4)
				}, null);
				if (method == null)
				{
					throw new Exception("Failed to reflect internal method. Your Unity version may not contain the presumed named method in GeometryUtility.");
				}
				_calculateFrustumPlanes_Imp = Delegate.CreateDelegate(typeof(Action<Plane[], Matrix4x4>), method) as Action<Plane[], Matrix4x4>;
				if (_calculateFrustumPlanes_Imp == null)
				{
					throw new Exception("Failed to reflect internal method. Your Unity version may not contain the presumed named method in GeometryUtility.");
				}
			}
			_calculateFrustumPlanes_Imp(planes, worldToProjectMatrix);
		}
	}
}