using UnityEngine;

[AddComponentMenu("Modifiers/FFD/FFD 4x4x4")]
public class MegaFFD4x4x4 : MegaFFD
{
	public override string ModName()
	{
		return "FFD4x4x4";
	}

	public override int GridSize()
	{
		return 4;
	}

	public override Vector3 Map(int ii, Vector3 p)
	{
		Vector3 zero = Vector3.zero;
		Vector3 vector = tm.MultiplyPoint3x4(p);
		if (inVol)
		{
			for (int i = 0; i < 3; i++)
			{
				if (vector[i] < 0f - EPSILON || vector[i] > 1f + EPSILON)
				{
					return p;
				}
			}
		}
		float num = 1f - vector.x;
		float num2 = 1f - vector.y;
		float num3 = 1f - vector.z;
		float num4 = num2 * num2;
		float num5 = vector.y * vector.y;
		float num6 = num3 * num3;
		float num7 = vector.z * vector.z;
		for (int j = 0; j < 4; j++)
		{
			float num8;
			switch (j)
			{
			case 0:
				num8 = num * num * num;
				break;
			case 1:
				num8 = 3f * vector.x * num * num;
				break;
			case 2:
				num8 = 3f * vector.x * vector.x * num;
				break;
			default:
				num8 = vector.x * vector.x * vector.x;
				break;
			}
			for (int k = 0; k < 4; k++)
			{
				float num9;
				switch (k)
				{
				case 0:
					num9 = num8 * (num2 * num4);
					break;
				case 1:
					num9 = num8 * (3f * vector.y * num4);
					break;
				case 2:
					num9 = num8 * (3f * num5 * num2);
					break;
				default:
					num9 = num8 * (num5 * vector.y);
					break;
				}
				for (int l = 0; l < 4; l++)
				{
					float num10;
					switch (l)
					{
					case 0:
						num10 = num9 * (num3 * num6);
						break;
					case 1:
						num10 = num9 * (3f * vector.z * num6);
						break;
					case 2:
						num10 = num9 * (3f * num7 * num3);
						break;
					default:
						num10 = num9 * (num7 * vector.z);
						break;
					}
					int num11 = (j << 4) + (k << 2) + l;
					zero.x += pt[num11].x * num10;
					zero.y += pt[num11].y * num10;
					zero.z += pt[num11].z * num10;
				}
			}
		}
		return invtm.MultiplyPoint3x4(zero);
	}

	public override int GridIndex(int i, int j, int k)
	{
		return (i << 4) + (j << 2) + k;
	}
}