4-6 Eliminating ThirdPersonCharacter.cs

本章重構要來刪除ThirdPersonCharacter，相關功能將會合併至CharacterMovement.cs。首先，請如下圖將ThirdPersonCharacter.cs內的程式碼一步一步貼到CharacterMovement.cs，注意檢查於CharacterMovement.cs中有同樣使用到rigidbody跟animator的部分，便不需要複製。

複製完成後，請將ThirdPersonCharacter.cs刪除。

刪除後應該會發現程式碼中提示匯入ThirdPersonCharacter的部分為紅字，請依序將紅字的部分刪除吧，已經不需要了。

Player中原本放置ThirdPersonCharacter的地方會顯示Nothing Selected，請將這部分也刪掉。修改完成後，部分數值如movingTurnSpeed、stationaryTurnSpeed應會有所改變，請大家自己確認看看唷。

以下提供新的CharacterMovement的程式碼：

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using System; using UnityEngine; using UnityEngine.AI; using RPG.CameraUI;   namespace RPG.Character{  [RequireComponent(typeof (NavMeshAgent))]  public class CharacterMovement : MonoBehaviour  {   [SerializeField] float walkMoveStopRadius = 0.2f;   [SerializeField] float attackMoveStopRadius = 5f;   [SerializeField] float moveSpeedMultiplier = 1f;   [SerializeField] float animationSpeedMultiplier = 1f;   [SerializeField] float movingTurnSpeed = 360f;   [SerializeField] float stationaryTurnSpeed = 180f;   [SerializeField] float moveThreshold = 1f;     NavMeshAgent agent = null;   Animator animator = null;   Rigidbody myRigidbody = null;   float turnAmount;   float forwardAmount;        private void Start()      {    CameraRaycaster cameraRaycaster = Camera.main.GetComponent<cameraraycaster>();    animator = GetComponent<animator> ();      myRigidbody = GetComponent<rigidbody> ();    myRigidbody.constraints = RigidbodyConstraints.FreezeRotation;      agent = GetComponent<navmeshagent> ();    agent.updateRotation = false;    agent.updatePosition = true;      cameraRaycaster.onMouseOverWalkable += OnMouseOverWalkable;    cameraRaycaster.onMouseOverEnemy += OnMouseOverEnemy;      }     public void Move(Vector3 movement)   {    SetForwardAndTurn (movement);    ApplyExtraTurnRotation();    UpdateAnimator();   }     private void SetForwardAndTurn(Vector3 movement){    // 將Wolrd相對的向量轉換成Local相對的向量    if (movement.magnitude > moveThreshold) {     movement.Normalize ();    }    // 將Worldspace的方向轉換成LocalSpace    Vector3 localMovement = transform.InverseTransformDirection(movement);    turnAmount = Mathf.Atan2(localMovement.x, localMovement.z);    forwardAmount = localMovement.z;   }     void UpdateAnimator()   {    // update the animator parameters    animator.SetFloat("Forward", forwardAmount, 0.1f, Time.deltaTime);    animator.SetFloat("Turn", turnAmount, 0.1f, Time.deltaTime);    animator.speed = animationSpeedMultiplier;   }     void ApplyExtraTurnRotation()   {    // help the character turn faster (this is in addition to root rotation in the animation)    float turnSpeed = Mathf.Lerp(stationaryTurnSpeed, movingTurnSpeed, forwardAmount);    transform.Rotate(0, turnAmount * turnSpeed * Time.deltaTime, 0);   }     void Update(){    if (agent.remainingDistance > agent.stoppingDistance) {     Move(agent.desiredVelocity);    } else {     Move (Vector3.zero);    }   }     void OnMouseOverWalkable(Vector3 destination){    if (Input.GetMouseButton (0)) {     // 設置地點為滑鼠點擊的位置     agent.SetDestination(destination);     GetComponent<navmeshagent> ().stoppingDistance = walkMoveStopRadius;    }   }     void OnMouseOverEnemy(Enemy enemy){    if (Input.GetMouseButton (0)) {     // 設置地點為Enemy的位置     agent.SetDestination(enemy.transform.position);     GetComponent<navmeshagent> ().stoppingDistance = attackMoveStopRadius;    }   }     void OnAnimatorMove(){    if (Time.deltaTime > 0) {     Vector3 velocity = (animator.deltaPosition * moveSpeedMultiplier) / Time.deltaTime;     // 保持y軸的速度不變     velocity.y = myRigidbody.velocity.y;     myRigidbody.velocity = velocity;    }   }     void OnDrawGizmos(){    //繪製攻擊範圍    Gizmos.color = new Color(255f, 0f, 0f, 0.5f);    Gizmos.DrawWireSphere (transform.position, attackMoveStopRadius);   }  } }   </navmeshagent></navmeshagent></navmeshagent></rigidbody></animator></cameraraycaster>