I have a
double helix minecart spiral carved, the blue track is for going down, the red one has highest rollers on every odd level for bringing up carts.
I double checked to make sure that all tracks are connected, all ramps have two directional tracks carved on them, the game does not give me the dir/connect error, so I don't make the common mistakes.
The problems is, the downward track is slow. It looks like somehow the cart gets stuck on every 4th downward ramp for 18-20 ticks, collects some momentum, continues, then get stuck again on the 4th ramp. I counted the ticks, and this pattern emerges:
feature tick
track 1
DOWN ramp 4
track/corner 1
DOWN ramp 4
track 1
DOWN ramp 3
track/corner 1
DOWN ramp 18
track 1
DOWN ramp 4
track/corner 1
DOWN ramp 4
track 1
DOWN ramp 3
track/corner 1
DOWN ramp 19
So it looks like somehow every
second corner track slows down the cart to a crawl. Which shouldn't be possible, as we can see the cart spends 3-4 ticks on the other 3 ramps, resulting in at least 40-50.000 extra speed, and the corner speed penalty is only ~1000.
The upward ramp with the rollers does not show this slowdown, the speed is consistent, but when I changed the direction by switching off the rollers and pushing the cart down that way the same thing happened.
Does anybody have any idea what's happening here?
EDIT: It's even more weird than I thought before: I can derail the cart at the corner (just before the slowdown is happening) if I remove the corner wall. So it has more than 50.000 speed on entering the level, that goes close to zero at the corner or the entry point of the next down ramp. I built a quick test fort to make sure that it's not my save that's bugged. Same thing is happening.
It looks like the ramp is behaving as an up and down ramp
at the same time. The cart enters, loses momentum as if on an up ramp, then rolls down, continues and gains momentum. Weird.
Edit2: IT's definetly the ramp, not the corner: If I build a track over the ramp and lead the minecart onto another ramp it can go up without a problem.