Question

这是我的代码：

public class CharacterController : MonoBehaviour
{

    private Vector3 _startLocation = Vector3.zero;
    private Vector3 _currentLocation = Vector3.zero;
    private Vector3 _endLocation = Vector3.zero;
    private bool _isMoving = false;
    private float _distanceToTravel;

    private float _startTime;

    public float Speed = 1.0f;

    // Update is called once per frame
    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {

            Debug.Log("Left mouse button clicked");

            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

            RaycastHit hit;

            if (Physics.Raycast(ray, out hit))
            {
                if (hit.collider.gameObject.CompareTag("Ground"))
                {
                    _startLocation = transform.position;
                    _endLocation = hit.point;
                    _isMoving = true;
                    _startTime = Time.time;
                    _distanceToTravel = Vector3.Distance(_startLocation, _endLocation);

                    Debug.Log(string.Format("Ground has been hit: Start: {0}, End: {1}", _startLocation.ToString(), _endLocation.ToString()));
                }
            }
        }

        if (_isMoving)
           Move();
    }

    void Move()
    {
        float timeElapsed = (Time.time - _startTime) * Speed;
        float t = timeElapsed / _distanceToTravel;

        _currentLocation = Vector3.Lerp(_startLocation, _endLocation, t);

        transform.Translate(_currentLocation);

        if (_currentLocation == _endLocation)
        {
            Debug.Log(string.Format("Destination reached ({0})", _endLocation.ToString()));

            _isMoving = false;
        }
    }
}

我阅读了Vector3.Lerp函数以及Physics.Raycast函数的文档，最后得到了此代码。

调试控制台确认地面已被击中，但我的胶囊开始向Y方向上移动并且永不停止！

我对Unity和游戏开发一般都很陌生，所以我还在学习，但是关于我做错了什么的指示？

Answer 1

因为你使用了transform.Translate。它正在Y中移动。

transform.Translate正在移动它，所以如果你做了transform.Translate（0,0,10）它会在z中移动，如果你确实转换了.Translate（0,10,10）它会在y和z方向上移动。

所以为了解决这个问题，我将向您展示两种方式：

1）使用Vector3.Lerp：

transform.position = Vector3.Lerp(_startLocation, _endLocation, t);

2）使用MoveTowards：

transform.position = Vector3.MoveTowards(transform.position, _endLocation, Speed * Time.deltaTime);

在第一个Vector3.Lerp中使用，我也看到你也使用它了

_currentLocation = Vector3.Lerp(_startLocation, _endLocation, t);

所以你可以这样做：

transform.position = Vector3.Lerp(_startLocation, _endLocation, t);

或者

transform.position = _currentLocation;

两者都会这样做，因为您已将_currentLocation分配给

Vector3.Lerp(_startLocation, _endLocation, t);

你可以在这里阅读有关MoveTowards的内容 http://docs.unity3d.com/ScriptReference/Vector3.MoveTowards.html

Answer 2

检查评论行您将了解我编辑的内容以提供解决方案。它适用于我

void Start()
{
    _startLocation = transform.position; // Changed Here to Initialize once  
}
    void Update()
{
    if (Input.GetMouseButtonDown(0))
    {         
        Debug.Log("Left mouse button clicked");
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit hit;
        if (Physics.Raycast(ray, out hit))
        {
            if (hit.collider.gameObject.CompareTag("Ground"))
            {   
                print(hit.point);
                //**Here you mentioned _StartLocation = transform.position
                //this instantly changes the starting point Every time so
                //if SP changes then totally changed in Translation.*** 
                _endLocation= hit.point;
                _isMoving = true;
                _startTime = Time.time;
                _distanceToTravel = Vector3.Distance(_startLocation, _endLocation);
            }
        }
    }
    if (_isMoving)
    {
         Move();
    }

}

void Move()
{
    float timeElapsed = (Time.time - _startTime) * Speed;
    float t = timeElapsed / _distanceToTravel;

    _currentLocation = Vector3.Lerp(_startLocation, _endLocation, t);
    transform.position = Vector3.Lerp(_startLocation, _endLocation, t);
    _startLocation = _endLocation;
                 //*** This line is for Next Mouse
                 //click. So every next click StartPoint is Current Click
                //EndPoint***
    if (_currentLocation == _endLocation)
    {
        Debug.Log(string.Format("Destination reached ({0})", _endLocation.ToString()));
        _isMoving = false;
    }
}
}

简单的点击移动脚本不起作用？

2 个答案: