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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class FootIKTest : MonoBehaviour
{
Animator anim;
public LayerMask layerMask;
[Range(0, 1f)]
public float DistanceToGround;
private void Start()
{
anim = GetComponent<Animator>();
}
private void OnAnimatorIK(int layerIndex)
{
if (anim)
{
anim.SetIKPositionWeight(AvatarIKGoal.LeftFoot, anim.GetFloat("IKLeftFootWeight"));
anim.SetIKRotationWeight(AvatarIKGoal.LeftFoot, anim.GetFloat("IKLeftFootWeight"));
anim.SetIKPositionWeight(AvatarIKGoal.RightFoot, anim.GetFloat("IKRightFootWeight"));
anim.SetIKRotationWeight(AvatarIKGoal.RightFoot, anim.GetFloat("IKRightFootWeight"));
// Left Foot
RaycastHit hit;
Ray ray = new Ray(anim.GetIKPosition(AvatarIKGoal.LeftFoot) + Vector3.up, Vector3.down);
if (Physics.Raycast(ray, out hit, DistanceToGround + 1f, layerMask))
{
if (hit.transform.tag == "Walkable")
{
Vector3 footOriginForward = anim.GetBoneTransform(HumanBodyBones.LeftFoot).forward;
Vector3 footPosition = hit.point;
footPosition.y += DistanceToGround;
anim.SetIKPosition(AvatarIKGoal.LeftFoot, footPosition);
anim.SetIKRotation(AvatarIKGoal.LeftFoot, Quaternion.LookRotation(footOriginForward - Vector3.Dot(footOriginForward, hit.normal) *(hit.normal), hit.normal));
}
}
// Right Foot
ray = new Ray(anim.GetIKPosition(AvatarIKGoal.RightFoot) + Vector3.up, Vector3.down);
if (Physics.Raycast(ray, out hit, DistanceToGround + 1f, layerMask))
{
if (hit.transform.tag == "Walkable")
{
Vector3 footOriginForward = anim.GetBoneTransform(HumanBodyBones.RightFoot).forward;
Vector3 footPosition = hit.point;
footPosition.y += DistanceToGround;
anim.SetIKPosition(AvatarIKGoal.RightFoot, footPosition);
anim.SetIKRotation(AvatarIKGoal.RightFoot, Quaternion.LookRotation(footOriginForward - Vector3.Dot(footOriginForward, hit.normal) * (hit.normal), hit.normal));
}
}
}
}
}
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