JOODE: joint problem

Game Mechanics
#1

Ok I tried the test cases also without my changes - same thing. So I think its not my code, so I’ll commit it, because it makes reading probably a big deal easier.

but never the less we’ll have to investigate, why the following test cases don’t work:

CubeSliderTest - no movement
KinematicLoop - no movement
TwoBodyBallTest - no movement
TwoBodyHingeTest - no movement

attached to this problem might be the issue, that I had to change that line in Geom.java:

this.parent_space = space;

to

this.parent_space = null;

please note, that I actually only rechanged that line to how it was in version 1.5 of Geom.java.
@hdietrich: why did you change it?

mmh I just noted, that in TwoBodyBallTest, it doesn’t print “step”. Maybe simply it’s not stepped.

#2

nope - it’s stepping - the view gets refreshed

#3

mmh somehow the forces applied at the beginning get removed before the first step, because, if I apply them later on it works just fine. - damn me - that’s me the problem maker! It’s because of my FPS thingi: Because the stepsize is unknown at the first frame, I simply have it set as 0 (better do less in the first frame than too much) So the applied forces have no result! (0s of 20000N has no effect!) - so no real bug :slight_smile:

#4

Damn, I was accidentially checking in this piece of code. I must have messed up the changes I have made to the geometry objects with some tests I have done to see what has to be cleaned up and what can be cleaned up. I am sorry!