koobas.hobune.stream
How do I determine the previous point that my enemy was at?
In a patrolling system I have what the current patrol point is, but I'd like to know what the previous patrol point is as well to make this work:
if (currentPatrolPoint.position.y < previousPatrolPoint.position.y) { anim.SetBool("walkDown", true); downSearch.SetActive(true);
This is what I have so far:
if (currentPatrolIndex == 0)
{
previousPatrolIndex = patrolPoints.Length;
}
else
{
previousPatrolIndex = (currentPatrolIndex - 1);
}
currentPatrolPoint = patrolPoints[currentPatrolIndex];
previousPatrolPoint = patrolPoints[previousPatrolIndex];
But the last line is pulling up an error that says, "Array index is out of range." Help please? Thanks!
If the currentPatrolIndex was 0, this would set previousPatrolIndex to the length of your array. The problem is that array lengths start at 1 and array indexes start at zero, so where an array that has 5 indexes has a length of 5, the indexes range from 0-4.
To get around it, make your first if statement do this instead:
previousPatrolIndex = (patrolPoints.Length - 1);
This will then make sure it goes to the last entry in the array and not the one after (which doesn't exist). I hope that helps :)
Thank you! That fixed the error and the explanation was appreciated :)
Not a problem - I'm happy to be of assistance :)
