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);
}
}
}
void UObstacleMovementComponent::TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction *ThisTickFunction)
{
Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
if (!UpdatedComponent)
{
return;
}
AActor* ActorOwner = UpdatedComponent->GetOwner();
if (!ActorOwner || ActorOwner->IsPendingKill())
{
return;
}
FVector CurrentLocation = UpdatedComponent->GetComponentLocation();
FRotator CurrentRotation = UpdatedComponent->GetComponentRotation();
if (MovingRight)
{
CurrentLocation.Y += MovementSpeed * DeltaTime;
if (CurrentLocation.Y >= RightMovementTarget)
{
MovingRight = !MovingRight;
CurrentLocation.Y = RightMovementTarget;
}
}
else
{
CurrentLocation.Y -= MovementSpeed * DeltaTime;
if (CurrentLocation.Y <= LeftMovementTarget)
{
MovingRight = !MovingRight;
CurrentLocation.Y = LeftMovementTarget;
}
}
FHitResult Hit(1.0f);
MoveUpdatedComponent(CurrentLocation - UpdatedComponent->GetComponentLocation(), CurrentRotation, true, &Hit);
// If we hit a trigger that destroyed us, abort.
if (ActorOwner->IsPendingKill() || !UpdatedComponent)
{
return;
}
UpdateComponentVelocity();
}
void UFloatingPawnMovement::TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction *ThisTickFunction)
{
Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
if (!PawnOwner || !UpdatedComponent || ShouldSkipUpdate(DeltaTime))
{
return;
}
const AController* Controller = PawnOwner->GetController();
if (Controller && Controller->IsLocalController())
{
ApplyControlInputToVelocity(DeltaTime);
LimitWorldBounds();
bPositionCorrected = false;
// Move actor
FVector Delta = Velocity * DeltaTime;
if (!Delta.IsNearlyZero(1e-6f))
{
const FVector OldLocation = UpdatedComponent->GetComponentLocation();
const FRotator Rotation = UpdatedComponent->GetComponentRotation();
FVector TraceStart = OldLocation;
FHitResult Hit(1.f);
SafeMoveUpdatedComponent(Delta, Rotation, true, Hit);
if (Hit.IsValidBlockingHit())
{
HandleImpact(Hit, DeltaTime, Delta);
// Try to slide the remaining distance along the surface.
SlideAlongSurface(Delta, 1.f-Hit.Time, Hit.Normal, Hit, true);
}
// Update velocity
// We don't want position changes to vastly reverse our direction (which can happen due to penetration fixups etc)
if (!bPositionCorrected)
{
const FVector NewLocation = UpdatedComponent->GetComponentLocation();
Velocity = ((NewLocation - OldLocation) / DeltaTime);
}
}
// Finalize
UpdateComponentVelocity();
}
};
void UGridMovementComponent::TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction *ThisTickFunction)
{
Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
if (Moving)
{
/* Find the next location */
Distance = FMath::Min(Spline->GetSplineLength(), Distance + (MaxSpeed * DeltaTime));
/* Grab our current transform so we can find the velocity if we need it later */
AActor *Owner = GetOwner();
FTransform OldTransform = Owner->GetTransform();
/* Find the next loaction from the spline*/
FTransform NewTransform = Spline->GetTransformAtDistanceAlongSpline(Distance, ESplineCoordinateSpace::Local);
/* Restrain rotation axis */
FRotator Rotation = NewTransform.Rotator();
Rotation.Roll = LockRoll ? 0 : Rotation.Roll;
Rotation.Pitch = LockPitch ? 0 : Rotation.Pitch;
Rotation.Yaw = LockYaw ? 0 : Rotation.Yaw;
NewTransform.SetRotation(Rotation.Quaternion());
Owner->SetActorTransform(NewTransform);
/* Check if we're reached our destination*/
if (Distance >= Spline->GetSplineLength())
{
Moving = false;
Distance = 0;
Velocity = FVector::ZeroVector;
OnMovementEndEvent.Broadcast();
}
else
{
Velocity = (NewTransform.GetLocation() - OldTransform.GetLocation()) * (1 / DeltaTime);
}
// update velocity so it can be fetched by the pawn
UpdateComponentVelocity();
}
}
void UProjectileMovementComponent::TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction *ThisTickFunction)
{
QUICK_SCOPE_CYCLE_COUNTER( STAT_ProjectileMovementComponent_TickComponent );
// skip if don't want component updated when not rendered or updated component can't move
if (HasStoppedSimulation() || ShouldSkipUpdate(DeltaTime))
{
return;
}
Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
AActor* ActorOwner = UpdatedComponent->GetOwner();
if ( !ActorOwner || !CheckStillInWorld() )
{
return;
}
if (UpdatedComponent->IsSimulatingPhysics())
{
return;
}
float RemainingTime = DeltaTime;
uint32 NumBounces = 0;
int32 Iterations = 0;
FHitResult Hit(1.f);
while( RemainingTime >= MIN_TICK_TIME && (Iterations < MaxSimulationIterations) && !ActorOwner->IsPendingKill() && !HasStoppedSimulation() )
{
Iterations++;
// subdivide long ticks to more closely follow parabolic trajectory
const float TimeTick = ShouldUseSubStepping() ? GetSimulationTimeStep(RemainingTime, Iterations) : RemainingTime;
RemainingTime -= TimeTick;
Hit.Time = 1.f;
const FVector OldVelocity = Velocity;
const FVector MoveDelta = ComputeMoveDelta(OldVelocity, TimeTick);
const FRotator NewRotation = (bRotationFollowsVelocity && !OldVelocity.IsNearlyZero(0.01f)) ? OldVelocity.Rotation() : ActorOwner->GetActorRotation();
// Move the component
if (bShouldBounce)
{
// If we can bounce, we are allowed to move out of penetrations, so use SafeMoveUpdatedComponent which does that automatically.
SafeMoveUpdatedComponent( MoveDelta, NewRotation, true, Hit );
}
else
{
// If we can't bounce, then we shouldn't adjust if initially penetrating, because that should be a blocking hit that causes a hit event and stop simulation.
TGuardValue<EMoveComponentFlags> ScopedFlagRestore(MoveComponentFlags, MoveComponentFlags | MOVECOMP_NeverIgnoreBlockingOverlaps);
MoveUpdatedComponent(MoveDelta, NewRotation, true, &Hit );
}
// If we hit a trigger that destroyed us, abort.
if( ActorOwner->IsPendingKill() || HasStoppedSimulation() )
{
return;
}
// Handle hit result after movement
if( !Hit.bBlockingHit )
{
PreviousHitTime = 1.f;
bIsSliding = false;
// Only calculate new velocity if events didn't change it during the movement update.
if (Velocity == OldVelocity)
{
Velocity = ComputeVelocity(Velocity, TimeTick);
}
}
else
{
// Only calculate new velocity if events didn't change it during the movement update.
if (Velocity == OldVelocity)
{
// re-calculate end velocity for partial time
Velocity = (Hit.Time > KINDA_SMALL_NUMBER) ? ComputeVelocity(OldVelocity, TimeTick * Hit.Time) : OldVelocity;
}
// Handle blocking hit
float SubTickTimeRemaining = TimeTick * (1.f - Hit.Time);
const EHandleBlockingHitResult HandleBlockingResult = HandleBlockingHit(Hit, TimeTick, MoveDelta, SubTickTimeRemaining);
if (HandleBlockingResult == EHandleBlockingHitResult::Abort || HasStoppedSimulation())
{
break;
}
else if (HandleBlockingResult == EHandleBlockingHitResult::Deflect)
{
NumBounces++;
HandleDeflection(Hit, OldVelocity, NumBounces, SubTickTimeRemaining);
PreviousHitTime = Hit.Time;
PreviousHitNormal = ConstrainNormalToPlane(Hit.Normal);
}
else if (HandleBlockingResult == EHandleBlockingHitResult::AdvanceNextSubstep)
{
// Reset deflection logic to ignore this hit
PreviousHitTime = 1.f;
}
else
{
// Unhandled EHandleBlockingHitResult
checkNoEntry();
}
// A few initial bounces should add more time and iterations to complete most of the simulation.
if (NumBounces <= 2 && SubTickTimeRemaining >= MIN_TICK_TIME)
{
RemainingTime += SubTickTimeRemaining;
Iterations--;
}
}
}
UpdateComponentVelocity();
}
void UInterpToMovementComponent::TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction *ThisTickFunction)
{
QUICK_SCOPE_CYCLE_COUNTER(STAT_InterpToMovementComponent_TickComponent);
Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
// skip if don't want component updated when not rendered or updated component can't move
if (!UpdatedComponent || ShouldSkipUpdate(DeltaTime))
{
return;
}
AActor* ActorOwner = UpdatedComponent->GetOwner();
if (!ActorOwner || !CheckStillInWorld())
{
return;
}
if (UpdatedComponent->IsSimulatingPhysics())
{
return;
}
if((bStopped == true ) || ( ActorOwner->IsPendingKill() ) )
{
return;
}
if( ControlPoints.Num()== 0 )
{
return;
}
// This will update any control points coordinates that are linked to actors.
UpdateControlPoints(false);
float RemainingTime = DeltaTime;
int32 NumBounces = 0;
int32 Iterations = 0;
FHitResult Hit(1.f);
FVector WaitPos = FVector::ZeroVector;
if (bIsWaiting == true)
{
WaitPos = UpdatedComponent->GetComponentLocation();
}
while (RemainingTime >= MIN_TICK_TIME && (Iterations < MaxSimulationIterations) && !ActorOwner->IsPendingKill() && UpdatedComponent)
{
Iterations++;
const float TimeTick = ShouldUseSubStepping() ? GetSimulationTimeStep(RemainingTime, Iterations) : RemainingTime;
RemainingTime -= TimeTick;
// Calculate the current time with this tick iteration
float Time = FMath::Clamp(CurrentTime + ((DeltaTime*TimeMultiplier)*CurrentDirection),0.0f,1.0f);
FVector MoveDelta = ComputeMoveDelta(Time);
// Update the rotation on the spline if required
FRotator CurrentRotation = UpdatedComponent->GetComponentRotation();
// Move the component
if ((bPauseOnImpact == false ) && (BehaviourType != EInterpToBehaviourType::OneShot))
{
// If we can bounce, we are allowed to move out of penetrations, so use SafeMoveUpdatedComponent which does that automatically.
SafeMoveUpdatedComponent(MoveDelta, CurrentRotation, true, Hit);
}
else
{
// If we can't bounce, then we shouldn't adjust if initially penetrating, because that should be a blocking hit that causes a hit event and stop simulation.
TGuardValue<EMoveComponentFlags> ScopedFlagRestore(MoveComponentFlags, MoveComponentFlags | MOVECOMP_NeverIgnoreBlockingOverlaps);
MoveUpdatedComponent(MoveDelta, CurrentRotation, true, &Hit);
}
//DrawDebugPoint(GetWorld(), UpdatedComponent->GetComponentLocation(), 16, FColor::White,true,5.0f);
// If we hit a trigger that destroyed us, abort.
if (ActorOwner->IsPendingKill() || !UpdatedComponent)
{
return;
}
// Handle hit result after movement
if (!Hit.bBlockingHit)
{
// If we were 'waiting' were not any more - broadcast we are off again
if( bIsWaiting == true )
{
OnWaitEndDelegate.Broadcast(Hit, Time);
bIsWaiting = false;
}
else
{
CalculateNewTime(CurrentTime, TimeTick, Hit, true, bStopped);
if (bStopped == true)
{
return;
}
}
}
else
{
if (HandleHitWall(Hit, TimeTick, MoveDelta))
{
break;
}
NumBounces++;
float SubTickTimeRemaining = TimeTick * (1.f - Hit.Time);
// A few initial bounces should add more time and iterations to complete most of the simulation.
if (NumBounces <= 2 && SubTickTimeRemaining >= MIN_TICK_TIME)
{
RemainingTime += SubTickTimeRemaining;
Iterations--;
}
}
}
if( bIsWaiting == false )
{
FHitResult DummyHit;
CurrentTime = CalculateNewTime(CurrentTime, DeltaTime, DummyHit, false, bStopped);
}
UpdateComponentVelocity();
}
