unitychan-crs 头发随动脚本

//

//SpringCollider for unity-chan!

//

//Original Script is here:

//ricopin / SpringCollider.cs

//Rocket Jump : http://rocketjump.skr.jp/unity3d/109/

//https://twitter.com/ricopin416

//

using UnityEngine;

using System.Collections;



namespace UnityChan

{

    public class SpringCollider : MonoBehaviour

    {

        //半径

        public float radius = 0.5f;



        private void OnDrawGizmosSelected ()

        {

            Gizmos.color = Color.green;

            Gizmos.DrawWireSphere (transform.position, radius);

        }

    }

}

//

//SpringBone.cs for unity-chan!

//

//Original Script is here:

//ricopin / SpringBone.cs

//Rocket Jump : http://rocketjump.skr.jp/unity3d/109/

//https://twitter.com/ricopin416

//

//Revised by N.Kobayashi 2014/06/20

//

using UnityEngine;

using System.Collections;



namespace UnityChan

{

    public class SpringBone : MonoBehaviour

    {

        //次のボーン

        public Transform child;



        //ボーンの向き

        public Vector3 boneAxis = new Vector3 (-1.0f, 0.0f, 0.0f);

        public float radius = 0.05f;



        //各SpringBoneに設定されているstiffnessForceとdragForceを使用するか？

        public bool isUseEachBoneForceSettings = false; 



        //バネが戻る力

        public float stiffnessForce = 0.01f;



        //力の減衰力

        public float dragForce = 0.4f;

        public Vector3 springForce = new Vector3 (0.0f, -0.0001f, 0.0f);

        public SpringCollider[] colliders;

        public bool debug = true;

        //Kobayashi:Thredshold Starting to activate activeRatio

        public float threshold = 0.01f;

        private float springLength;

        private Quaternion localRotation;

        private Transform trs;

        private Vector3 currTipPos;

        private Vector3 prevTipPos;

        //Kobayashi

        private Transform org;

        //Kobayashi:Reference for "SpringManager" component with unitychan 

        private SpringManager managerRef;



        private void Awake ()

        {

            trs = transform;

            localRotation = transform.localRotation;

            //Kobayashi:Reference for "SpringManager" component with unitychan

            // GameObject.Find("unitychan_dynamic").GetComponent<SpringManager>();

            managerRef = GetParentSpringManager (transform);

        }



        private SpringManager GetParentSpringManager (Transform t)

        {

            var springManager = t.GetComponent<SpringManager> ();



            if (springManager != null)

                return springManager;



            if (t.parent != null) {

                return GetParentSpringManager (t.parent);

            }



            return null;

        }



        private void Start ()

        {

            springLength = Vector3.Distance (trs.position, child.position);

            currTipPos = child.position;

            prevTipPos = child.position;

        }



        public void UpdateSpring ()

        {

            //Kobayashi

            org = trs;

            //回転をリセット

            trs.localRotation = Quaternion.identity * localRotation;



            float sqrDt = Time.deltaTime * Time.deltaTime;



            //stiffness

            Vector3 force = trs.rotation * (boneAxis * stiffnessForce) / sqrDt;



            //drag

            force += (prevTipPos - currTipPos) * dragForce / sqrDt;



            force += springForce / sqrDt;



            //前フレームと値が同じにならないように

            Vector3 temp = currTipPos;



            //verlet

            currTipPos = (currTipPos - prevTipPos) + currTipPos + (force * sqrDt);



            //長さを元に戻す

            currTipPos = ((currTipPos - trs.position).normalized * springLength) + trs.position;



            //衝突判定

            for (int i = 0; i < colliders.Length; i++) {

                if (Vector3.Distance (currTipPos, colliders [i].transform.position) <= (radius + colliders [i].radius)) {

                    Vector3 normal = (currTipPos - colliders [i].transform.position).normalized;

                    currTipPos = colliders [i].transform.position + (normal * (radius + colliders [i].radius));

                    currTipPos = ((currTipPos - trs.position).normalized * springLength) + trs.position;

                }





            }



            prevTipPos = temp;



            //回転を適用；

            Vector3 aimVector = trs.TransformDirection (boneAxis);

            Quaternion aimRotation = Quaternion.FromToRotation (aimVector, currTipPos - trs.position);

            //original

            //trs.rotation = aimRotation * trs.rotation;

            //Kobayahsi:Lerp with mixWeight

            Quaternion secondaryRotation = aimRotation * trs.rotation;

            trs.rotation = Quaternion.Lerp (org.rotation, secondaryRotation, managerRef.dynamicRatio);

        }



        private void OnDrawGizmos ()

        {

            if (debug) {

                Gizmos.color = Color.yellow;

                Gizmos.DrawWireSphere (currTipPos, radius);

            }

        }

    }

}

//

//SpingManager.cs for unity-chan!

//

//Original Script is here:

//ricopin / SpingManager.cs

//Rocket Jump : http://rocketjump.skr.jp/unity3d/109/

//https://twitter.com/ricopin416

//

//Revised by N.Kobayashi 2014/06/24

//           Y.Ebata

//

using UnityEngine;

using System.Collections;



namespace UnityChan

{

    public class SpringManager : MonoBehaviour

    {

        //Kobayashi

        // DynamicRatio is paramater for activated level of dynamic animation 

        public float dynamicRatio = 1.0f;



        //Ebata

        public float            stiffnessForce;

        public AnimationCurve    stiffnessCurve;

        public float            dragForce;

        public AnimationCurve    dragCurve;

        public SpringBone[] springBones;



        void Start ()

        {

            UpdateParameters ();

        }

    

        void Update ()

        {

#if UNITY_EDITOR

        //Kobayashi

        if(dynamicRatio >= 1.0f)

            dynamicRatio = 1.0f;

        else if(dynamicRatio <= 0.0f)

            dynamicRatio = 0.0f;

        //Ebata

        UpdateParameters();

#endif

        }

    

        private void LateUpdate ()

        {

            //Kobayashi

            if (dynamicRatio != 0.0f) {

                for (int i = 0; i < springBones.Length; i++) {

                    if (dynamicRatio > springBones [i].threshold) {

                        springBones [i].UpdateSpring ();

                    }

                }

            }

        }



        private void UpdateParameters ()

        {

            UpdateParameter ("stiffnessForce", stiffnessForce, stiffnessCurve);

            UpdateParameter ("dragForce", dragForce, dragCurve);

        }

    

        private void UpdateParameter (string fieldName, float baseValue, AnimationCurve curve)

        {

            var start = curve.keys [0].time;

            var end = curve.keys [curve.length - 1].time;

            //var step    = (end - start) / (springBones.Length - 1);

        

            var prop = springBones [0].GetType ().GetField (fieldName, System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public);

        

            for (int i = 0; i < springBones.Length; i++) {

                //Kobayashi

                if (!springBones [i].isUseEachBoneForceSettings) {

                    var scale = curve.Evaluate (start + (end - start) * i / (springBones.Length - 1));

                    prop.SetValue (springBones [i], baseValue * scale);

                }

            }

        }

    }

}