Character falls through floor when falling at high speed

[ewokdanceparty]

Hi all, in my game I would like each jump to last 0.25 seconds. The problem is, when I tune gravity and jump speed for that air time, the character sometimes falls through the floor. I would like this not to happen in my game. This appears to be a bug, but maybe there's a way to mitigate this without changing the source code?

To replicate, go to:

On https://3000.kaboomjs.com/play?example=platformer

Set the following parameters:

setGravity(30000)
JUMP_FORCE = 3750

And then try jumping.

(I normally set gravity and jump speed to half those values, but then the character will only occasionally fall through the floor. If I don't set gravity and jump speed to be fairly high, I can't get a jump with a satisfying height that lasts 0.25s).

This appears similar to an issue that was closed in 2021.

Thank you!

[gunikas]

I have a similar problem with the play character falling through the ground occasionally. gravity is just set to 3000

[qsun81]

same here. gravity is set to 2000, but my character falls down through the platform.

[dratner]

+1

[pjoe]

Seeing this also, toying with a platformer, but when player falls off platform and keeps falling long enough velocity gets high enough (because of gravity) that the player falls right through lower platforms. Is there alternatively a good way to limit the max speed of e.g. a falling player?

EDIT: using ver. 3000.0.14

[ganevdev]

Seeing this also, toying with a platformer, but when player falls off platform and keeps falling long enough velocity gets high enough (because of gravity) that the player falls right through lower platforms. Is there alternatively a good way to limit the max speed of e.g. a falling player?

EDIT: using ver. 3000.0.14

Here: https://kaboomjs.com/#BodyCompOpt there is maxVelocity param for body - I think with this you can set the maximum velocity that the body can have, drag and gravityScale parameters may also help with this.