using UnityEngine;
using System;
using System.Collections;

[RequireComponent(typeof(Animator))]
public class IKControl : MonoBehaviour
{
    protected Animator animator;

    public bool ikActive = false;
    public Transform leftHandObj = null;
    public Transform rightHandObj = null;
    public Transform leftFootObj = null;
    public Transform rightFootObj = null;
    public Transform lookObj = null;

    void Start()
    {
        animator = GetComponent<Animator>();
    }

    void OnAnimatorIK()
    {
        if (animator)
        {
            if (ikActive)
            {
                if (lookObj != null)
                {
                    animator.SetLookAtWeight(1);
                    animator.SetLookAtPosition(lookObj.position);
                }
                if (leftHandObj != null)
                {
                    animator.SetIKPositionWeight(AvatarIKGoal.LeftHand, 1);
                    animator.SetIKRotationWeight(AvatarIKGoal.LeftHand, 1);
                    animator.SetIKPosition(AvatarIKGoal.LeftHand, leftHandObj.position);
                    animator.SetIKRotation(AvatarIKGoal.LeftHand, leftHandObj.rotation);
                }
                if (rightHandObj != null)
                {
                    animator.SetIKPositionWeight(AvatarIKGoal.RightHand, 1);
                    animator.SetIKRotationWeight(AvatarIKGoal.RightHand, 1);
                    animator.SetIKPosition(AvatarIKGoal.RightHand, rightHandObj.position);
                    animator.SetIKRotation(AvatarIKGoal.RightHand, rightHandObj.rotation);
                }
                if (leftFootObj != null)
                {
                    animator.SetIKPositionWeight(AvatarIKGoal.LeftFoot, 1);
                    animator.SetIKRotationWeight(AvatarIKGoal.LeftFoot, 1);
                    animator.SetIKPosition(AvatarIKGoal.LeftFoot, leftFootObj.position);
                    animator.SetIKRotation(AvatarIKGoal.LeftFoot, leftFootObj.rotation);
                }
                if (rightFootObj != null)
                {
                    animator.SetIKPositionWeight(AvatarIKGoal.RightFoot, 1);
                    animator.SetIKRotationWeight(AvatarIKGoal.RightFoot, 1);
                    animator.SetIKPosition(AvatarIKGoal.RightFoot, rightFootObj.position);
                    animator.SetIKRotation(AvatarIKGoal.RightFoot, rightFootObj.rotation);
                }
            }
            else
            {
                animator.SetLookAtWeight(0);
                animator.SetIKPositionWeight(AvatarIKGoal.LeftHand, 0);
                animator.SetIKRotationWeight(AvatarIKGoal.LeftHand, 0);
                animator.SetIKPositionWeight(AvatarIKGoal.RightHand, 0);
                animator.SetIKRotationWeight(AvatarIKGoal.RightHand, 0);
                animator.SetIKPositionWeight(AvatarIKGoal.LeftFoot, 0);
                animator.SetIKRotationWeight(AvatarIKGoal.LeftFoot, 0);
                animator.SetIKPositionWeight(AvatarIKGoal.RightFoot, 0);
                animator.SetIKRotationWeight(AvatarIKGoal.RightFoot, 0);
            }
        }
    }
}