I built a pan balance to determine how much the player in a seat weighs.

Contraption

Posted May 26, 2020, 10:52 PM UTC

11413
TruePikachuOP•

Turns out, the player is always weightless, and hammering downwards doesn't apply a downwards force.

Before anyone asks, the toilet-paper-roll-on-an-engine is used to keep physics active on the entire balance; without it, the balance will stop moving instead of moving slowly.

The balance itself is available here for your own experiments.

18
Blutmes•

Try crouching in it. Lol for some reason crouching forces things down.

10
TruePikachuOP•

I just tested this, it does indeed apply a downwards force, which is interesting and might be usable for some sort of fuel-and-controller-free elevator design that uses a counterbalance.

1
sucr4m•

some youtuber tested a shitload of stuff like this way back when the game came out.

is the rotating toilett paper there to the bearings react faster? because when he did it back then the statement was something like it wouldnt work well with bearings.

2
TruePikachuOP•

The way stuff works is that if parts haven't moved enough over a specific time period, the physics engine assumes the parts are stationary and stops simulating them until something comes close enough that it might affect them. With the toilet paper, that one part is continuously moving enough to prevent physics from stopping.

6
sucr4m•

thats what i thought, thanks for confirming.

1
passesfornormal•

That's really enlightening. Explains why the game lags out when a moving vehicle crashes into a stationary vehicle.

1
TruePikachuOP•

That's actually partially due to a second effect, caused by having many parts close enough together. Here, the game has to check if the parts are close enough together that they're colliding. For 5 parts, it's 10 checks. For 10 parts, it's 45 checks. For 20 parts, it's 190 checks. For 30 parts, 435 checks...you can see the number rises quickly.

This is an unavoidable problem for physics simulations, I might mention, and Axolot can't be held responsible for this limitation.

3
passesfornormal•

Would it be fair to say that number of "parts" on a vehicle is the number of separate weld highlightable locations?

So a single vehicle with complex custom suspension may be 30+ parts all on it's own.

1
Funtime42069•

This might explain why my smasher works fine when i watch it from a distance but when i stand inside, it stops working after 1 or 2 kills

1
Extraltodeus•

Wouldn't, logic gates blinking not work? Since an automatic farming machine can trigger motors and thus enable the physics. Or using and engine/piston is the only way?

1
TruePikachuOP•

Logic gate logic doesn't depend on physics moving on the contraption.

1
bkconn•

It makes sense because neither player weight nor inventory weight has any effect on the balance of a vehicle.

1