How to Limit Directional Influence in Air

[AwesomeHighFive]

Thanks for your time.

By default, Unreal allows the player to influence their direction in the air by pressing wasd (or arrow keys). You get a constant speed boost, and it's almost instantaneous, which is highly unrealistic.

More power to you if you want something like that, but I'm shooting for absolute realism here, where you can influence just a little bit, but nothing like the massive speed boosts you get now.

Can anyone help me understand how to limit this while in the air? I want to keep "PHYS_Falling" if possible, and it makes sense to stay in the PlayerWalking state. I know that it has something to do with PlayerInput.aForward, PlayerInput.aStrafe, the Pawn's Velocity X and Y vectors (relative to the world?).

Thanks in any case,
--AHF

[TheAgent]

I believe its a variable called "AirControl"

[evr]

More power to you if you want something like that, but I'm shooting for absolute realism here, where you can influence just a little bit, but nothing like the massive speed boosts you get now.

Absolute realism would be no influence at all. (AirControl=0.0)

[AwesomeHighFive]

Added line "airControl=0.0f;" to the end of MyPawn :: DefaultProperties with no change in functionality. Mind you I do want a little bit of "nudge" (I figure you can lurch sideways in the air a bit even if you're falling, waving your arms like a maniac, etc) but I wanted to test it at absolute 0 just to see if it had any effect at all, but it doesn't seem to.

Maybe this variable is named poorly, or archaic?

[evr]

Which pawn class are you extending?

[AwesomeHighFive]

UTPawn - the last one before DummyPawn.

[evr]

Well, as you can see here, whenever a UTPawn lands the AirControl is reset to DefaultAirControl.

event Landed(vector HitNormal, actor FloorActor)
{
	local vector Impulse;

	Super.Landed(HitNormal, FloorActor);

	// adds impulses to vehicles and dynamicSMActors (e.g. KActors)
	Impulse.Z = Velocity.Z * 4.0f; // 4.0f works well for landing on a Scorpion
	if (UTVehicle(FloorActor) != None)
	{
		UTVehicle(FloorActor).Mesh.AddImpulse(Impulse, Location);
	}
	else if (DynamicSMActor(FloorActor) != None)
	{
		DynamicSMActor(FloorActor).StaticMeshComponent.AddImpulse(Impulse, Location);
	}

	if ( Velocity.Z < -200 )
	{
		OldZ = Location.Z;
		bJustLanded = bUpdateEyeHeight && (Controller != None) && Controller.LandingShake();
	}

	if (UTInventoryManager(InvManager) != None)
	{
		UTInventoryManager(InvManager).OwnerEvent('Landed');
	}
	if ((MultiJumpRemaining < MaxMultiJump && bStopOnDoubleLanding) || bDodging || Velocity.Z < -2 * JumpZ)
	{
		// slow player down if double jump landing
		Velocity.X *= 0.1;
		Velocity.Y *= 0.1;
	}

	AirControl = DefaultAirControl;
	MultiJumpRemaining = MaxMultiJump;
	bDodging = false;
	bReadyToDoubleJump = false;
	if (UTBot(Controller) != None)
	{
		UTBot(Controller).ImpactVelocity = vect(0,0,0);
	}

	if(!bHidden)
	{
		PlayLandingSound();
	}
	if (Velocity.Z < -MaxFallSpeed)
	{
		SoundGroupClass.Static.PlayFallingDamageLandSound(self);
	}
	else if (Velocity.Z < MaxFallSpeed * -0.5)
	{
		SoundGroupClass.Static.PlayLandSound(self);
	}

	SetBaseEyeheight();
}

You need to change DefaultAirControl also.

defaultproperties
{
	AirControl=0.0
	DefaultAirControl=0.0
}

[AwesomeHighFive]

You made me feel like this.



<3