added:

No try to move your character with it, instead of using multiply calls of c_move instruction.
You'll need to make only one call with "my.dist_x" and then change all those three defines.
BTW, for gravity you better use absolute force, like this:

May be this will help you to solve the problem, it may be was caused by multiply c_move calls.

I didn't really look at your code (should do that though), but I'm using a modified version of the improved player movement code and I've never had the problem of sinking in the floor after a jump. So I figure it might be worth your time to take a look at the simple jump code in it and see what they did differently.

3run: this code is not for movement.. just for jumping

malice: can't use it cause i need those sibgle parts instead of 1 function

You use obj.in_jump to track it's jump state, have you watched this var to see if it enters the land state late? Also I'm not sure what obj.objekthoehe is but is it possible that your condition in land is being set to low by this?

objekthoehe = height of the object (max_z*2)

could this be your problem.

while(obj.roofdist > (obj.objekthoehe/2))

this is the model center plus max height. But you what the model to stop at the positive min.z , wouldn't simple removing the "/2" fix your problem?

You were changing something called direction in X coordinates. Change movement as I said.

no, that's just for other objects. player movement is in another script.


can't try to erase *2
at the moment i'm sitting in a restaurant - will try it later

OK... I'll wait.
Leave
creator.objekthoehe = (creator.max_z*2);
but change
while(obj.roofdist > (obj.objekthoehe/2))
to
while(obj.roofdist > (obj.objekthoehe))