using System;
using System.Collections.Generic;
using UnityEngine;

public class WristTwist : ATwistCtrl
{
	public WristTwist(bool is_left, TBody body) : base((!is_left) ? Maid.AutoTwist.WristR : Maid.AutoTwist.WristL, body)
	{
		string str;
		if (body.IsCrcBody)
		{
			str = "Bip01";
		}
		else
		{
			str = (body.boMAN ? "ManBip" : "Bip01");
		}
		string str2 = (!is_left) ? " R Hand" : " L Hand";
		base.bone = body.GetBone(str + str2);
		base.mrBone = base.GetMRBone(str + str2);
		if (body.IsCrcBody)
		{
			for (int i = 0; i < 6; i++)
			{
				string name = (!is_left) ? string.Format("ForeTwist{0}_R", i + 1) : string.Format("ForeTwist{0}_L", i + 1);
				Transform transform = base.bone.parent.Find(name);
				if (transform)
				{
					Transform transform2 = base.mrBone.parent.Find(name);
					if (transform2)
					{
						base.twistBones.Add(new KeyValuePair<Transform, Transform>(transform2, transform));
					}
				}
			}
		}
	}

	public override void ApplyTwist()
	{
		Vector3 vector = base.bone.rotation * Vector3.forward;
		Vector3 vector2 = base.bone.parent.rotation * base.mrBone.localRotation * Vector3.forward;
		Vector3 normalized = (base.bone.position - base.bone.parent.position).normalized;
		vector2 = (vector2 - normalized * Vector3.Dot(vector2, normalized)).normalized;
		vector = (vector - normalized * Vector3.Dot(vector, normalized)).normalized;
		float f = Vector3.Dot(vector2, vector);
		float num = Mathf.Acos(f) * 57.29578f;
		if (float.IsNaN(num))
		{
			num = 0f;
		}
		else
		{
			Vector3 lhs = Vector3.Cross(normalized, vector2);
			if (Vector3.Dot(lhs, vector) < 0f)
			{
				num = -num;
			}
		}
		for (int i = 0; i < base.twistBones.Count; i++)
		{
			KeyValuePair<Transform, Transform> keyValuePair = base.twistBones[i];
			float num2 = (float)i / (float)(base.twistBones.Count - 1);
			keyValuePair.Value.localRotation = keyValuePair.Key.localRotation;
			keyValuePair.Value.rotation = Quaternion.AngleAxis(num * num2, normalized) * keyValuePair.Value.rotation;
		}
	}
}