[Help]: Making a minigun turret's barrel spin without animations.

[legacy-717]

I need help making a minigun turret's barrels spin while firing without an animation. So far I've tried adding:

simulated function PostBeginPlay()
{
	local Rotator	R;

	super.PostBeginPlay();

	 R					= GetBoneRotation( 'Cannons' );
	 CurrentCannonRoll	= R.Yaw;
}

/*
Firing state:
Updates cannon rotation
*/
state Firing
{
    simulated function Tick(float deltaTime)
    {
		local rotator	R;

		if ( Instigator == None )
			return;

		if ( bWeaponIsFiring && (Level.TimeSeconds - LastFireTime > 0.5) )
			StopFiring();

		if ( bWeaponIsFiring )
		{ 
			// Increase rotation rate...
			if ( CurrentRollSpeed < CannonRollSpeed )
				CurrentRollSpeed += RollSpeedAcc * 4.f * deltaTime;	// faster acceleration when shooting
			else if ( CurrentRollSpeed > CannonRollSpeed )
				CurrentRollSpeed = CannonRollSpeed;
		}
		else
		{	
			// decrease rotation rate...
			if ( CurrentRollSpeed > 0 )
				CurrentRollSpeed -= RollSpeedAcc * deltaTime;
			
			// If rotation rate is null, exit state..
			if ( CurrentRollSpeed < 0 )
			{
				CurrentRollSpeed = 0;
				GotoState('');
			}
		}

		// Rotating cannon
		CurrentCannonRoll = (CurrentCannonRoll + CurrentRollSpeed * deltatime) % 65536;
		R.Roll = CurrentCannonRoll;
		Instigator.SetBoneRotation('Cannons', R, 0, 1.f);
    }

}

simulated Event StartFiring()
{
	bWeaponIsFiring	= true;
	
//	if ( Instigator != None )
//		Instigator.AmbientSound	= FiringSound;

	GotoState('Firing');
}

simulated function vector GetFireStart( vector RelOffset )
{
	local vector	X, Y, Z;

	GetViewAxes(X, Y, Z);
    return Instigator.Location + X*RelOffset.X + Y*RelOffset.Y + Z*RelOffset.Z;
}

simulated function GetViewAxes( out vector xaxis, out vector yaxis, out vector zaxis )
{
	GetAxes( Instigator.Rotation, xaxis, yaxis, zaxis );
}

simulated Event StopFiring()
{
	if ( !bWeaponIsFiring )
		return;

	bFiring	= false;
}

to the vehicle's weapon pawn and:

 
simulated function PostBeginPlay()
{
	local Rotator	R;

	super.PostBeginPlay();

	 R					= GetBoneRotation( 'Cannons' );
	 CurrentCannonRoll	= R.Yaw;
}

/*
Firing state:
Updates cannon rotation
*/
state Firing
{
    simulated function Tick(float deltaTime)
    {
		local rotator	R;

		if ( Instigator == None )
			return;

		if ( bIsRepeatingFF && (Level.TimeSeconds - LastFireTime > 0.5) )
			StopFiring();

		if ( bIsRepeatingFF )
		{ 
			// Increase rotation rate...
			if ( CurrentRollSpeed < CannonRollSpeed )
				CurrentRollSpeed += RollSpeedAcc * 4.f * deltaTime;	// faster acceleration when shooting
			else if ( CurrentRollSpeed > CannonRollSpeed )
				CurrentRollSpeed = CannonRollSpeed;
		}
		else
		{	
			// decrease rotation rate...
			if ( CurrentRollSpeed > 0 )
				CurrentRollSpeed -= RollSpeedAcc * deltaTime;
			
			// If rotation rate is null, exit state..
			if ( CurrentRollSpeed < 0 )
			{
				CurrentRollSpeed = 0;
				GotoState('');
			}
		}

		// Rotating cannon
		CurrentCannonRoll = (CurrentCannonRoll + CurrentRollSpeed * deltatime) % 65536;
		R.Roll = CurrentCannonRoll;
		Instigator.SetBoneRotation('Cannons', R, 0, 1.f);
    }

}


simulated Event StartFiring()
{
	bIsRepeatingFF	= true;
	
//	if ( Instigator != None )
//		Instigator.AmbientSound	= FiringSound;

	GotoState('Firing');
}

simulated function vector GetFireStart( vector RelOffset )
{
	local vector	X, Y, Z;

	GetViewAxes(X, Y, Z);
    return Instigator.Location + X*RelOffset.X + Y*RelOffset.Y + Z*RelOffset.Z;
}

simulated function GetViewAxes( out vector xaxis, out vector yaxis, out vector zaxis )
{
	GetAxes( Instigator.Rotation, xaxis, yaxis, zaxis );
}

simulated Event StopFiring()
{
	if ( !bFiring )
		return;

	bIsRepeatingFF	= false;
}

to my vehicle's weapon with no effect. (code adapted from the AS minigun turret)
btw-I havent gotten any odd messages in the log file and the bone name is correct.

[Xyx]

Stick in some debug lines. Some people like using the log for that:

Log("this is written in the log");

I like broadcasting them:

Level.Game.Broadcast(Instigator.Controller, "this is broadcasted in the chat", 'Say');

Try to figure out 1) if the functions are being called at all, 2) what rotation is calculated, 3) if the rotation is being applied.

[legacy-717]

^Thanks agin Xyx, it turns out none of it was being called. :bulb: :sigh: I'll double check the ons source code to see if I'm using the right function.