Raycast based tank suspension (Godot)

I managed to create basic suspension using raycasting. It feels more practical then using rigidbody constrains. The lines are drawed using immediate rendering. I don't like anything physics related at all, as I have no idea how to model such things. The tank starts flying in all directions when it gets on the side (expected), but the whole game lags when my player character steps on it. I have no idea why. Also the performant physics engine (Bullet) makes this really unstable, so I had to us

[@KaletheQuick]

Flying tanks? Well lets just surrender then.

[@bodamat]

Woolw, it looks amazing. I'm so interesting how this works :)

[@reasonnotfound]

This one explains the basics of wheel raycasting pretty well: kzbin.info/www/bejne/rmGvhpx7ZcmrhpI I am slowly thinking about making some tutorials and stuff but university is pretty taxing right now unfortunatelly. :(

[@bodamat]

@@reasonnotfound understand :( Thank you for that. I'll wait for your tutorial too :)

[@danibiyarslanov]

that camera movement adds a lot of character well done

[@reasonnotfound]

😎

[@Gamepro5]

Prob cause it's physically attached to the part of the tank that wiggles

[@LeSnekAuChocolat]

Can you make a tutorial how to do this? Would be really helpful 😁

[@LeSnekAuChocolat]

@@reasonnotfound I mean every solution has its problems. If it works, it works :) I am just a newbie in godot and I know only the basics. So seeing how something like this works would be really helpful to me.

[@LeSnekAuChocolat]

@@reasonnotfound Hmm, seems interesting, maybe ill try to make it myself using your solution.

[@mast_g]

@@reasonnotfound ...this helps too ;) gj

[@bodamat]

Yes, it would be great

[@SaiponathGames]

Impressed on your work!! Nice!

[@reasonnotfound]

Thank you :)

[@reasonnotfound]

I wish you a lot of luck. ;)

[@SaiponathGames]

@@reasonnotfound Thank you! Good luck! Waiting for next update!

[@Artybayt]

Good idea. Nice execution.

[@coderflowerdev]

This is very cool!

[@davidmurphy563]

Hey buddy, quick question if you don't mind: I see you used a Path for the tracks. Did you add a PathFollow with a MeshInstance child for each track segment? I see that the track moves with the suspension. How did you approach this? Did you vertically offset the track segment mesh or did you update the path each frame? ps. great work here, hats off to you.

[@reasonnotfound]

Exactly. A lot of MeshInstances with PathFollow following a Path. I think there is somewhere a offset property, that offsets each PathFollow on the path.

[@davidmurphy563]

@@reasonnotfound ok buddy, I can do that no problem. Obviously the curve changes with the suspension. You seem to be changing the track curve vertices each frame based on the wheel position. That's easy enough to code but isn't recalculating the curve each that super expensive?? Isn't the curve effectively baked?

[@reasonnotfound]

@@davidmurphy563 I did not think about performance too much. I sort of expected that baking the path should not be a huge deal considering that the track uses only few points. (Did not test this though)

[@davidmurphy563]

@@reasonnotfound Yeah, I think I'll take the "worry about it if and when it becomes an issue" approach. I will set all the vertices in one pass per frame though. Thanks so much for your help. Beautiful job with your tank.

[@davidmurphy563]

@@reasonnotfound So you know, I implemented it and it's working great with no performance issues. Just want to thank you for your help.

[@GameDevGeeks]

NICE

[@atirutwattanamongkol8806]

War Thunder Godot edition when

[@luiwolff3545]

can we get a tutorial or some code? would be very helpful!

[@reasonnotfound]

I had problems myself with the solution. It's quite complex thing to make correctly.

[@bodamat]

@@reasonnotfound but it works :) This is interesting more how :)

[@ThatPianoNoob]

@@bodamat not sure it does.. the fact that he doesnt move it forward makes me think it just works up and down. Which is cool but not very useful.

[@batty251]

This looks good however make another 10+ of these while other physics and other particles going off it all might bottleneck as recasting is all maths so it eats up memory quick.

[@reasonnotfound]

Not sure, I don't have the project files anymore. I had more then 10 of these use rigidbody for each moveable part, where parts were connected with constraint joints. I would be surprised if raycasted solution would struggle with performance.

[@BitorBit_]

Sourse code?

[@GEK0dev]

War thunder be like

[@fedyfausto]

There is some code?

[@Gatfim.official]

Sistema parecido com o war thunder mobile

[@linovermac]

please project files and source codes github link :)