Actor rotation problem

Community Community & Industry Discussion
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1

Hello guys, I’m trying to rotate a revolver handgun cylinder each shot by i had a problem after three 3 shots when roll is near to 180 …

    void Weapon::FireWeapon()
    {
    	Super::FireWeapon();
    
    	float CurrentRoll = CylinderComp->RelativeRotation.Roll;    

    	if (CurrentAmmo -1 < MaxAmmo / 2)
    	{
    		MaxRoll = ((CurrentAmmo * -1) * 60);
    	}
    	else
    	{
                //This section works for three first shot
    		MaxRoll = (MaxAmmo - CurrentAmmo + 1) * 60;
    	}

    	GetWorldTimerManager().SetTimer(TimerHandle_CylinderAnim, this, &Weapon::AnimateCylinder, 0.01, true);
    
    }

void Weapon::AnimateCylinder()
{
	float CurrentRoll = CylinderComp->RelativeRotation.Roll;
	FRotator CurrentRotation = CylinderComp->RelativeRotation;
	float TargetRoll = 0;

	TargetRoll = FMath::FInterpTo(CurrentRoll, MaxRoll, GetWorld()->GetDeltaSeconds(), 18);

	CurrentRotation.Roll = TargetRoll;

	CylinderComp->SetRelativeRotation(CurrentRotation.Quaternion());

	if (TargetRoll >= MaxRoll)
	{
		GetWorldTimerManager().ClearTimer(TimerHandle_CylinderAnim);
	}
}

The problem is i don’t know how to handle when degree is greater than 180 as UE4 rotation system is a little bit different!

Regards

2

Hello guys I found the solution, It works now, if anybody have similar problem on rotation can use this:

void Weapon::FireWeapon()
{
	Super::FireWeapon();

	MaxRoll = (MaxAmmoPerClip - CurrentAmmo + 1) * 60;

	GetWorldTimerManager().SetTimer(TimerHandle_CylinderAnim, this, &Weapon::AnimateCylinder, 0.01, true);
}

void Weapon::AnimateCylinder()
{

	FRotator TargetRotation = FRotator(0,0, MaxRoll);

	CylinderComp->SetRelativeRotation(FMath::RInterpConstantTo(CylinderComp->RelativeRotation, TargetRotation, GetWorld()->GetDeltaSeconds(), 500));
	
	if (CylinderComp->RelativeRotation.Equals(TargetRotation, 1))
	{
		GetWorldTimerManager().ClearTimer(TimerHandle_CylinderAnim);
	}

}