How to move the character in a certain way? - unity3d

Question

There is a way. The character starts at the midpoint. Then it should move to the right, if HorizontalAxis > 0 and to the left, if < 0. I have did something like this -
Way:
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);
}
Length of the array - 3 elements.
From the middle point to the right, the character normally goes both left and right, but as soon as I get to the last point, an error occurs -
Array index is out of range
During the error variables are:
NeedPoint: -1;
CurrnetPoint: 2;
And from the middle to the left point the character does not go at all.

Answer 1

this is the solution for:
The character starts at the midpoint. Then it should move to the
right, if HorizontalAxis > 0 and to the left, if < 0.
i assumed that "move to the right" means increasing the index in array and "move to the left" means decreasing the index in array
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);
}
if you need a different solution, please specify what you need