Simple example script for a 2d top down character (y up axis)?

1

Hello, I am using the newest free version of the pf system. I’m trying to set up (xz/y up)movement for a top down sprite character without any rotation and without Rigidbody and CharacterController. What I did was to change the AIPath script on the character.
In the Update function I replaced the line

transform.Translate(dir*Time.deltaTime, Space.World);
with
transform.position += dir * speed * Time.deltaTime;

this makes the character move to the target point but as soon as it gets there it starts jittering for a random amount of seconds until it finally stands still. I really tried to alter every inspector setting, both on the seeker script and on the grid manager itself, but to no avail.

Could someone who actually managed to set up a script for a 2d top down sprite character lend me a hand? Thanks!

EDIT:

I am using a Grid Graph identical to the one in the Grid Graph Example.

2

Hi

I am in the process of writing some 2D scripts. Here are the 2 scripts required for top-down movement.
http://pastebin.com/mVqA0fHu
http://pastebin.com/pkN8vNRz

or you can use this simpler script
http://pastebin.com/DvjRLQLV

[for future readers: the built-in AIPath and AILerp movement scripts now support movement in the 2D plane perfectly well, so use those instead. See https://arongranberg.com/astar/docs/pathfinding2d.html]

3

I’ll instantly have a look at these scripts. Thank you Aron!

4

Very good, the AISimpleLerp script almost works as expected, the problem is, the movement isn’t smooth like in the “AIPath2DTopDown” and if I put AIPath2DTopDown onto my character it flips criss cross, I guess because it expects z as the up axis, but my whole project is y-up. :frowning:

Is it possible to simply change some variables in the AIPath2DTopDown script to male it work like SimpleLerp (with smoothness)?

5

Is Y the up axis??
I thought all Unity 2D projects had Z as the up axis (i.e they are in the XY plane).

6

Sorry for the confusion. Indeed all Unity 2D projects use z axis up vector I guess, but I myself have decided to start developing a 2D Top Down Game in Unity 3D with Y up because I find it more natural than using Z up. I should have been more clear in my first post.

But still the SimpleLerp script does the trick for me and if I can somehow manage to bring smoothness to the movement it will be perfect for my needs. Any advise is very welcome.

7

Well, you should just be able to use the standard movement scripts since they all assume Y=up.