Unity3d使用键控代码向下移动

Question

此代码是这样的，当我按A键或B键时，电梯在第一层或第二层向上停止。

问题是

例如，当电梯位于二楼时，如何修改代码，然后再次按A键使电梯下降到一楼？

第二个问题

如果我替换

if (Input.GetKey (KeyCode.A)) {} 

与此

if (Input.GetKeyUp (KeyCode.Keypad1)) {} 

所以该代码不起作用。为什么？

谢谢您的建议

对不起，英语不好。这是代码

public GameObject lift;
private bool keyHHit=false;
private bool keyHHitB=false;

void Update () 
{
    if (Input.GetKey(KeyCode.B)) 
    { 
        keyHHit=true;
    }

    if( keyHHit==true)
    {
        if(transform.localPosition.y >= 14.52)
        {  
            transform.Translate(new Vector3(0, 0, 0) * 2 * Time.deltaTime, Space.Self);
        }
        else
        {
            transform.Translate(new Vector3(0, 2, 0) * 2 * Time.deltaTime, Space.Self);
        }
    }      

     if (Input.GetKey(KeyCode.A)) 
     { 
         keyHHitB=true;                       
     }

     if( keyHHitB==true)
     {
         if(transform.localPosition.y >= 8.52)
         {  
             transform.Translate(new Vector3(0, 0, 0) * 2 * Time.deltaTime, Space.Self);
         }
         else
         {
             transform.Translate(new Vector3(0, 2, 0) * 2 * Time.deltaTime, Space.Self);
             //transform.Translate(Vector3.up * 0.05f);
         }
     }               
 }

Answer 1

所以，如果我能正确理解你的话

• 您有两层或三层（没关系，以后可能会再多）。

• 一旦按下按钮，您想朝目标楼层移动直到到达那里。同时“锁定”输入

• 一旦到达楼层“解锁”，再次输入，并且如果当前楼层高于目标楼层，也允许其下降。>

我将为此使用Coroutine

// First lets have a class for floors so it is easier to add additional floors later
[Serializable]
public class FloorSetting
{
    public KeyCode Key;
    public Vector3 Position;
}

// Configure these floors in the Inspector
// simply add the entries you need and adjust buttons and target positions
[SerializeField] private FloorSetting[] floors;

[SerializeField] private float moveUnitsPerSecond = 1f;

// This flag is for blocking any Input while moving
// thus preventing concurrent routines
private bool isMoving;

private void Update()
{
    // if already moving do nothing
    if(isMoving) return;

    // check if any of the configured keys was pressed and start moving
    // towards the according position
    foreach(var floor in floors)
    {
        // You want to use GetKeyDown to only get the first press event
        // you don't care about continues press since you will keep moving automatically until reaching the floor
        if(Input.GetKeyDown(floor.Key))
        {
            StartCoroutine(MoveRoutine(floor.Position));
        }
    }
}

private IEnumerator MoveRoutine(Vector3 targetPosition)
{
    // block concurrent routine
    if(isMoving) yield break;

    isMoving = true;


    // Get the duration of movement
    var startPosition = transform.position;
    var duration = Vector3.Distance(startPosition, targetPosition) / moveUnitsPerSecond;

    // Move smoothly towards the target position and add some easing
    var timePassed = 0f;
    while(timePassed <= duration)
    {
        // A interpolation factor between 0 and 1
        var factor = timePassed / duration;
        // optionally add ease-in and out
        factor = Mathf.SmoothStep(0, 1, factor);

        // Set the position to an interpolated position between start and target depending on the factor
        transform.position = Vector3.Lerp(startPosition, targetPosition, factor);

        // increase by the time passed since last frame
        timePassed += Time.deltaTime;

        // Tells Unity to "pause" the routine here, render this frame
        // and continue from here in the next frame
        yield return null;
    }

    // Just to be sure in he end set it to hard position
    transform.position = targetPosition;

    // optionally add some cooldown in seconds
    yield return new WaitForSeconds(1f);

    // Release the lock so next move can start now
    isMoving = false;
}
注：在智能手机上输入，但我希望这个主意能清楚明白