unity3d - 如何以某种方式移动角色？

Question

有办法。角色从中点开始。然后它应该向右移动，如果 HorizontalAxis > 0在左边，如果 < 0 .我做过这样的事情-

方式:

public Transform[] PatrolPoints;
public Transform Way;
public int CurrentPoint;
public int NeedPoint;

if (transform.position == PatrolPoints[CurrentPoint].position && CurrentPoint < PatrolPoints.Length-1) 
{
    //PatrolPoints[CurrentPoint];
    NeedPoint = CurrentPoint + 1;
}       
else if(transform.position == PatrolPoints[NeedPoint].position && CurrentPoint != PatrolPoints.Length - 1)
{
    CurrentPoint++;
}
else if(transform.position == PatrolPoints[PatrolPoints.Length - 1].position)
{
    NeedPoint--;
}
if (CurrentPoint != PatrolPoints.Length - 1 && moveAxis > 0)
{
    transform.position = Vector3.MoveTowards(transform.position, PatrolPoints[NeedPoint].position, moveAxis * moveRate * Time.deltaTime);
    //An error occurs here
}
    else if(CurrentPoint > 0 && moveAxis < 0)
{
    transform.position = Vector3.MoveTowards(transform.position, PatrolPoints[NeedPoint - 1].position, -moveAxis * moveRate * Time.deltaTime);
}

数组的长度 - 3 个元素。从中间点向右，角色通常会向左和向右移动，但是当我到达最后一个点时，出现错误 -

Array index is out of range

期间出错的变量有:

需要点:-1；

当前点:2；

而且从中间点到左边点，角色根本没有移动。

Answer 1

这是解决方案:

The character starts at the midpoint. Then it should move to the right, if HorizontalAxis > 0 and to the left, if < 0.

我假设“向右移动”意味着增加数组中的索引，“向左移动”意味着减少数组中的索引

public Transform[] PatrolPoints;
public int NextPointOnLeft = 0; // because player starts at 1
public int NextPointOnRight = 2; // because player starts at 1

if (HorizontalAxis < 0)
{
    if (transform.position == PatrolPoints[NextPointOnLeft].position)
    {
        if(NextPointOnLeft > 0)
        {
            --NextPointOnLeft;
        }
        // EDIT: NextPointOnRight = NextPointOnLeft + 1;
    }
    // EDIT:
    NextPointOnRight = NextPointOnLeft + 1;
    transform.position = Vector3.MoveTowards(transform.position, PatrolPoints[NextPointOnLeft].position, moveRate * Time.deltaTime);
}
if (HorizontalAxis > 0)
{
    if (transform.position == PatrolPoints[NextPointOnRight].position)
    {
        if(NextPointOnRight < PatrolPoints.Length-1)
        {
            ++NextPointOnRight;
        }
        // EDIT: NextPointOnLeft = NextPointOnRight - 1;
    }
    // EDIT:
    NextPointOnLeft = NextPointOnRight - 1;
    transform.position = Vector3.MoveTowards(transform.position, PatrolPoints[NextPointOnRight].position, moveRate * Time.deltaTime);
}

如果您需要不同的解决方案，请说明您需要什么