Changing vehicle speed

Has anyone managed this? I thought I had at least changed the torque at some point but I've lost that code.

32 Replies

Ok, I think I just answered my own question. This seems to affect acceleration and such but I'm guessing the top speed is being limited in the vanilla code somewhere

Robb•3w ago

I think SifVerT had a vehicle tweaks mod but if I recall correctly it did handling and not top speed

SirDigbyOP•3w ago

Note to self, don't disable tick - speed limiting isn't happening there

SirDigbyOP•3w ago

Was thinking maybe they were doing something like this

SirDigbyOP•3w ago

Yeah, they must be imposing a hard speed limit somewhere

Robb•3w ago

I'm not sure, if you drive a vehicle down a steep slope can you get a higher top speed than flat ground?

SirDigbyOP•3w ago

Nope I did find this in FGWheeledVehicle but changing it doesn't seem to do anything

    UFUNCTION( BlueprintCallable, Category = "Vehicle" )
    void SetSpeedLimit( int speedLimit ) { mSpeedLimit = speedLimit; }

    UFUNCTION( BlueprintCallable, Category = "Vehicle" )
    void SetSpeedLimit( int speedLimit ) { mSpeedLimit = speedLimit; }

Rex•3w ago

What is different between the various vehicles in the game? IIRC they have different speeds

magicalwords•2w ago

It's dirty but look for the move component that contains FVehicleEngineConfig , definitely can increase the max speed / acceleration (max rpm / rev rates) but things get slippery. Mario cart mod soon(tm). Probably the setter touches the torque curve here you could try changing the transmission config instead. you may have to change max speed in addition, idk

SirDigbyOP•2w ago

@Co5teL could you share how you upped the speed for https://ficsit.app/mod/GoldenFactoryCart ?

Co5teL•2w ago

one time i made it go with 140km/h but it was too fast. let me see here ... 1 sec

Co5teL•2w ago

there it is

SirDigbyOP•2w ago

So was it changing the torque and rpm?

Co5teL•2w ago

yea

SirDigbyOP•2w ago

Hmm, ok. I tried changing the torque but will need to figure out how I can edit the RPM on existing vehicles

Co5teL•2w ago

its easy

SirDigbyOP•2w ago

Well I'm trying to edit vanilla vehicles, not make new ones

Co5teL•2w ago

the rpm goes with the torque graph 1st up aaaaaaaaa 1 thing about torque is that if you add more torque the vehicle will loose grip so it also needs a little more mass also mine is good as it is ... but i could not make it have multiple gears .. must be locked for the factory cart i put the gears from the other vehicle but it does not change gear... you must read about the final ratio the FINAL RATIO is what gives speed overall

SirDigbyOP•2w ago

Now we're cooking with gas

SirDigbyOP•2w ago

For any curious, this is what I ended up doing

void USirenSpeed_BPFL::SetEngineSpeed(UFGWheeledVehicleMovementComponent* movementComp, float newRPM, float newTorque)
{
    movementComp->EngineSetup.MaxRPM = newRPM;
    movementComp->EngineSetup.MaxTorque = newTorque;

    movementComp->RecreatePhysicsState();
}

void USirenSpeed_BPFL::SetEngineSpeed(UFGWheeledVehicleMovementComponent* movementComp, float newRPM, float newTorque)
{
    movementComp->EngineSetup.MaxRPM = newRPM;
    movementComp->EngineSetup.MaxTorque = newTorque;

    movementComp->RecreatePhysicsState();
}

Robb•2w ago

Does it still handle fine without mass changes?

SirDigbyOP•2w ago

Well, no

Robb•2w ago

I am sensing that perhaps your mod does not care about the handling, in focused pursuit of only speed, haha

SirDigbyOP•2w ago

https://tenor.com/view/mcqueen-gif-9449693085032454841

Tenor

SirDigbyOP•2w ago

It is a little janky if you do it while driving because it has to reset the vehicle physics

Robb•2w ago

Wonder if it's possible to carry over any of the speed to the new physics sim somehow

SirDigbyOP•7d ago

Don't see a way to set the current speed, just how to get it Just tried getting/setting the velocity as well and that didn't work

Rex•7d ago

Have you considered Simply™ strapping a rocket to the Factory Cart?

Robb•7d ago

I am guessing it would be more complex than that anyways... There is probably some internal engine simulation and calling that reset probably reinitializes it to be at 0rpm or whatever For the CCS mod, I implemented the unstuck by applying impulse to... I think it was the skeletal mesh. You might be able to give it a little push to start off with that based on what the velocity used to be

D4rk•4d ago

IIRC, the last time I tried this, I had to change the engine torque float curve assets, similar to what BabaBooie had to do for SpeedyTrainRedux. Check the source for that mod.

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Changing vehicle speed

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