ProjectileMovement UE4 source code

tick方程:

void UProjectileMovementComponent::InitializeComponent()
{
    Super::InitializeComponent();

    if (Velocity.SizeSquared() > 0.f)
    {
        // InitialSpeed > 0 overrides initial velocity magnitude.
        if (InitialSpeed > 0.f)
        {
            Velocity = Velocity.GetSafeNormal() * InitialSpeed;
        }

        if (bInitialVelocityInLocalSpace)
        {
            SetVelocityInLocalSpace(Velocity);
        }

        if (bRotationFollowsVelocity)
        {
            if (UpdatedComponent)
            {
                UpdatedComponent->SetWorldRotation(Velocity.Rotation());
            }
        }

        UpdateComponentVelocity();
        
        if (UpdatedPrimitive && UpdatedPrimitive->IsSimulatingPhysics())
        {
            UpdatedPrimitive->SetPhysicsLinearVelocity(Velocity);
        }
    }
}