Path following help

Atlas

I'm attempting to make a path following function and I am getting an error that reads

invalid get index '0' on (base: PoolVector3Array)

this is the function in question

	if !Patrol_path:
		return
	var target = Patrol_points[Patrol_index]
	if translation.distance_to(target) < 1:
		Patrol_index = wrapi(Patrol_index + 1, 0, Patrol_points.size())
		target = Patrol_points[Patrol_index]
	velocity = (target - translation).normalized * speed
	velocity = move_and_slide(velocity)

pkowal1982

@Atlas could you please format the code you posted? Looks like Patrol_points is empty and you're trying to get first element but it's hard to say without formatting.

TwistedTwigleg

I formatted the post :+1:

@Atlas - this post has a markdown reference if ever needed. You had it right for single line code, you just need a slightly different syntax for multiple lines. :smile:

pkowal1982

Thank you @TwistedTwigleg :) @Atlas I've written simple example to show you what's going on. I assume your error is thrown at line 3 (in my code it's line 7).

func test_me() -> void:
    var Patrol_points := PoolVector3Array()
    var Patrol_index := 0
    var Patrol_path := true
    if !Patrol_path:
        return
    var target = Patrol_points[Patrol_index]