[REQ] Wall/Ceiling climbing script example

Like many in the forums I am wanting a clear definitive example (working would be good) of the player character walking on walls and ceilings.

I see Frazzle and vlau are looking at various methods and many are talking about quaternions (whatever those are! )

I had assumed that this could be accomplished using 'normals' and local axis for pan/tilt calls but am unsure on how to approach in this direction or indeed, if this is actually possible.

Has anyone a n example to share please?

What you need to do is a trace down, then two more traces forward infront of the character and backward, and then set the player to the average between them.

Hey thanks for the hint lostclimate.
How much would you ask for to write a working example for me ?

15USD sound good?

Awesome, please pm me to arrange payment details (dont have credit card but can use mum in laws )or thru the banks maybe?

I've got an working script right here so no money needs to be spend Nems
It's not perfect yet but it will do if the restrictions are takin into account ^^

Cheers

Frazzle

Thanks Frazzle but its ok, its something that might prove usefull for another project I have in mind, cheers mate.

Oke

Cheers

Frazzle

Wall/Ceiling climbing: I see some tips about this topic
when I search the forum but no completed code. Will be great
if frazzle can post your code here. I think many people will
love you.

Camera tracking object without spin at 90 & 270
I found some members looking for a solution about this
issue and I've tried very hard to solve this problem,
still not success, have tried to use atan2(), still no luck.

It would seem to me that a wall/ceiling climbing script would simply involve to parts:

standard movment script with pan tilt adjustment for the angle of the wall/floor/ceiling and an adjustment the gravity vector based on the angle of the entity.

there are a couple of issues with that wade, one of the big ones is, if your level is low poly the camera will jump between angles.

The jumping between angles is indeed a pain in the a*s due to GL off course but I think I'll post a small level with what I've got. The rotation works perfect but the jumping of angles is like mentioned a hard thing to get right. It seems after using ang_rotate for arbitrary rotation and switching to the native angles (pan, tilt and roll) again, that the angles shift. Thus defining angles after using ang_rotate is the only option AFAIK atm.
Anyway, I'll probably post it tommorrow so you guys can play around with it as well

Cheers

Frazzle

Personally I don't think the camera would be the issue-- it would be the character itself "twitching" between angles unless the level is designed very carefully, but that will be an issue with complex level with wall climbing like that especially a cave with lots of irregularities. maybe and invisible "hull" to smooth it out.

I promised that I post a little level which shows the wall/ceiling abilities.
Basically it works perfect but only in one direction so you only can check the correct normal while following this order:
floor->wall->ceiling->wall->floor so it's a one way street only atm ^^
Rotation on the floor, wall and ceiling can be executed but afterwards when switching from normal, this must be done in the order I described above. Here's the link
Controls:
-wasd;
ws: forward/backward movement
ad: pan left/right
-double tap '0' will activate the camera;
arrow keys: movement
pageup/pagedown: looking up/down ^^

Play around with it and give my your C&C afterwards so we can make this perfect together

Cheers

Frazzle

Awesome Frazzle, hopefully this would help a lot who are looking for this function and maybe a good overall working m0del can be found to just plug into

Awesome, had a good play but its beyond me.
If I was to use it, what could I use it for?

a spider-man or ninja/thief type game is where this kinda stuff comes in play well. Good work Frazzle. I'll take a peak at it and get back.

well Im still working on the version for nems, hopefully it will have non of the restrictions that the current version has.

Good for you.

@ lostclimate:

I hope you succeed in making a better one since the restrictions my version has can be quite annoying indeed
But I created it for a certain purpose and it is sufficient enough for the attemped goal atm

@ Ilidrake:

Thanks for the kind words and have fun playing around with it

Cheers

Frazzle

Like Super Mario Galaxy? That'd be really tough to do. Wouldn't be hard to do a spider man code as the character model wouldn't be tilted to extremes so you wouldn't get the angle changing spinning issue.

I still wonder if it's possible to get it functioning like Galaxy Good work Frazzle!

Thank you David, I really appriciate credits from a user like you
Btw, there's only one way to find out to see if it's possible to fit Galaxy

Cheers

Frazzle

Quote:

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I had assumed that this could be accomplished using 'normals' and local axis for pan/tilt calls but am unsure on how to approach in this direction or indeed, if this is actually possible.

Has anyone a n example to share please?

---

My example is two years old so it does not use quaternions or c-lite. It works
on curved surfaces at any angle in every position. I do think quaternions are a
more elequent solution and perhaps the best way to do this however.

Frazzle seems to just about have it figured out (Good Work!), although his
solution is different than mine.

Currently I am working on and off on a racing game that uses what I call
"gravity leveling" technology. The tracks twist 360 degrees, double back on
theirselves upside down and loop also.