Refactor CMC and fix camera combat path reference

Pawn_Unreal/Source/Pawn/Private/Characters/PwnCharacterMovementComponent.cpp

@@ -86,32 +86,12 @@ void UPwnCharacterMovementComponent::EnterSplineFollowMode() {
 	IsFollowingSpline = true;
 	SetMovementMode(MOVE_Custom, SplineWalking);
 
-	const UPwnGameplayModeSubsystem* Subsystem = GetWorld()->GetSubsystem<UPwnGameplayModeSubsystem>();
-	check(Subsystem);
-
-
-	APwnCombatPlatformerPath* OutCombatPath;
-	if (Subsystem->FindClosestCombatPathLocation(UpdatedComponent->GetComponentLocation(), OutCombatPath)) {
-		CombatPath = OutCombatPath;
-		DotDirection = CombatPath->Reversed ? -1.0f : 1.0f;
-
-		const float ClosestInputKey = CombatPath->Spline->FindInputKeyClosestToWorldLocation(UpdatedComponent->GetComponentLocation());
-		FVector ClosestLocation = CombatPath->Spline->GetLocationAtSplineInputKey(ClosestInputKey, ESplineCoordinateSpace::World);
-
-		FHitResult Hit;
-		if (GetWorld()->LineTraceSingleByChannel(Hit, ClosestLocation, ClosestLocation + FVector(0.0f, 0.0f, -LineTraceDistance),
-			ECC_Visibility, IGNORE_OWNER_PARAMS)) {
-			const float SplineKey = CombatPath->FlattenedSpline->FindInputKeyClosestToWorldLocation(Hit.ImpactPoint);
-			DistanceAlongSpline = CombatPath->FlattenedSpline->GetDistanceAlongSplineAtSplineInputKey(SplineKey);
-
-			ClosestLocation.Z += CharacterOwner->GetCapsuleComponent()->GetScaledCapsuleHalfHeight();
-			UpdatedComponent->SetWorldLocation(ClosestLocation);
-		}
-	}
+	UpdateCurrentCombatPath(true);
 }
 
 void UPwnCharacterMovementComponent::ExitSplineFollowMode() {
 	IsFollowingSpline = false;
+	CombatPath = nullptr;
 	SetMovementMode(MOVE_Walking);
 }
 
@@ -119,6 +99,36 @@ bool UPwnCharacterMovementComponent::IsCustomMovementMode(const ECustomMovementM
 	return MovementMode == MOVE_Custom && CustomMovementMode == Mode;
 }
 
+bool UPwnCharacterMovementComponent::LineTraceToGround(FHitResult& OutHit, const FVector& StartLocation) const {
+	const FVector EndLocation = StartLocation + FVector(0.0f, 0.0f, -LineTraceDistance);
+	return GetWorld()->LineTraceSingleByChannel(OutHit, StartLocation, EndLocation, ECC_Visibility, IGNORE_OWNER_PARAMS);
+}
+
+void UPwnCharacterMovementComponent::UpdateCurrentCombatPath(const bool UpdateLocation) {
+	APwnCombatPlatformerPath* OutCombatPath;
+	FHitResult Hit;
+	if (LineTraceToGround(Hit, UpdatedComponent->GetComponentLocation())
+		&& UPwnGameplayModeSubsystem::Get(this).FindClosestCombatPathLocation(Hit.ImpactPoint, OutCombatPath)
+		&& OutCombatPath != CombatPath) {
+		CombatPath = OutCombatPath;
+		DotDirection = CombatPath->Reversed ? -1.0f : 1.0f;
+
+		const float ClosestInputKey = CombatPath->Spline->FindInputKeyClosestToWorldLocation(UpdatedComponent->GetComponentLocation());
+		const FVector ClosestLocation = CombatPath->Spline->GetLocationAtSplineInputKey(ClosestInputKey, ESplineCoordinateSpace::World);
+
+		if (LineTraceToGround(Hit, ClosestLocation)) {
+			const float SplineKey = CombatPath->FlattenedSpline->FindInputKeyClosestToWorldLocation(Hit.ImpactPoint);
+			DistanceAlongSpline = CombatPath->FlattenedSpline->GetDistanceAlongSplineAtSplineInputKey(SplineKey);
+
+			if (UpdateLocation) {
+				FVector NewLocation = Hit.ImpactPoint;
+				NewLocation.Z += CharacterOwner->GetCapsuleComponent()->GetScaledCapsuleHalfHeight();
+				UpdatedComponent->SetWorldLocation(NewLocation);
+			}
+		}
+	}
+}
+
 void UPwnCharacterMovementComponent::UpdateTangentAndAcceleration() {
 	Tangent2D = CombatPath->FlattenedSpline->GetTangentAtDistanceAlongSpline(DistanceAlongSpline, ESplineCoordinateSpace::World).GetSafeNormal2D();
 	// Recalculate acceleration so the input is relative to the spline
@@ -150,9 +160,7 @@ void UPwnCharacterMovementComponent::UpdatePawnVelocity(const float TimeTick) {
 
 void UPwnCharacterMovementComponent::UpdateDistanceAlongSpline() {
 	FHitResult Hit;
-	if (GetWorld()->LineTraceSingleByChannel(Hit, UpdatedComponent->GetComponentLocation(),
-	                                         UpdatedComponent->GetComponentLocation() + FVector(0.0f, 0.0f, -LineTraceDistance),
-	                                         ECC_Visibility, IGNORE_OWNER_PARAMS)) {
+	if (LineTraceToGround(Hit, UpdatedComponent->GetComponentLocation())) {
 		const FVector ImpactPoint = Hit.ImpactPoint;
 		const float InputKey = CombatPath->FlattenedSpline->FindInputKeyClosestToWorldLocation(ImpactPoint);
 		DistanceAlongSpline = CombatPath->FlattenedSpline->GetDistanceAlongSplineAtSplineInputKey(InputKey);
@@ -171,6 +179,8 @@ void UPwnCharacterMovementComponent::PhysSplineWalking(const float DeltaTime, in
 		return;
 	}
 
+	UpdateCurrentCombatPath(); /* -- PAWN MODIFICATIONS -- */
+
 	if (!CharacterOwner || (!CharacterOwner->Controller && !bRunPhysicsWithNoController && !HasAnimRootMotion() && !CurrentRootMotion.
 		HasOverrideVelocity() && (CharacterOwner->GetLocalRole() != ROLE_SimulatedProxy))) {
 		Acceleration = FVector::ZeroVector;
@@ -368,13 +378,12 @@ void UPwnCharacterMovementComponent::PhysSplineWalking(const float DeltaTime, in
 	UpdateLocationOnFlattenedSpline();
 }
 
-UE_DISABLE_OPTIMIZATION
-
 void UPwnCharacterMovementComponent::PhysSplineFalling(const float DeltaTime, int32 Iterations) {
 	if (DeltaTime < MIN_TICK_TIME) {
 		return;
 	}
 
+	UpdateCurrentCombatPath(); /* -- PAWN MODIFICATIONS -- */
 	UpdateTangentAndAcceleration(); /* -- PAWN MODIFICATIONS -- */
 
 	FVector FallAcceleration = GetFallingLateralAcceleration(DeltaTime);
@@ -579,8 +588,6 @@ void UPwnCharacterMovementComponent::PhysSplineFalling(const float DeltaTime, in
 						           : NewVelocity;
 				}
 
-				//UpdatePawnVelocity(TimeTick); /* -- PAWN MODIFICATIONS -- */
-
 				if (SubTimeTickRemaining > UE_KINDA_SMALL_NUMBER && (Delta | Adjusted) > 0.f) {
 					// Move in deflected direction.
 					SafeMoveUpdatedComponent(Delta, PawnRotation, true, Hit);
@@ -631,7 +638,6 @@ void UPwnCharacterMovementComponent::PhysSplineFalling(const float DeltaTime, in
 							Velocity = HasAnimRootMotion() || CurrentRootMotion.HasOverrideVelocityWithIgnoreZAccumulate()
 								           ? FVector(Velocity.X, Velocity.Y, NewVelocity.Z)
 								           : NewVelocity;
-							//UpdatePawnVelocity(TimeTick); /* -- PAWN MODIFICATIONS -- */
 						}
 
 						// bDitch=true means that pawn is straddling two slopes, neither of which it can stand on
@@ -661,8 +667,6 @@ void UPwnCharacterMovementComponent::PhysSplineFalling(const float DeltaTime, in
 								Velocity.Y += 0.25f * GetMaxSpeed() * (RandomStream.FRand() - 0.5f);
 								Velocity.Z = FMath::Max<float>(JumpZVelocity * 0.25f, 1.f);
 
-								//UpdatePawnVelocity(TimeTick); /* -- PAWN MODIFICATIONS -- */
-
 								Delta = Velocity * TimeTick;
 
 								SafeMoveUpdatedComponent(Delta, PawnRotation, true, Hit);
@@ -683,5 +687,3 @@ void UPwnCharacterMovementComponent::PhysSplineFalling(const float DeltaTime, in
 	UpdateDistanceAlongSpline();
 	UpdateLocationOnFlattenedSpline();
 }
-
-UE_ENABLE_OPTIMIZATION

Pawn_Unreal/Source/Pawn/Private/GameplayModes/PwnGameplayModeSubsystem.cpp

@@ -3,6 +3,13 @@
 #include "Components/SplineComponent.h"
 #include "GameplayModes/Combat/PwnCombatPlatformerPath.h"
 
+UPwnGameplayModeSubsystem& UPwnGameplayModeSubsystem::Get(const UObject* WorldContextObject) {
+	const UWorld* World = GEngine->GetWorldFromContextObjectChecked(WorldContextObject);
+	UPwnGameplayModeSubsystem* GameplayModeSubsystem = World->GetSubsystem<UPwnGameplayModeSubsystem>();
+	check(GameplayModeSubsystem);
+	return *GameplayModeSubsystem;
+}
+
 void UPwnGameplayModeSubsystem::Initialize(FSubsystemCollectionBase& Collection) {
 	Super::Initialize(Collection);
 	CurrentGameplayMode = EPwnGameplayMode::Narrative;

Pawn_Unreal/Source/Pawn/Public/Characters/PwnCharacterMovementComponent.h

@@ -51,6 +51,10 @@ public:
 	bool IsCustomMovementMode(const ECustomMovementMode Mode) const;
 
 private:
+	bool LineTraceToGround(FHitResult& OutHit, const FVector& StartLocation) const;
+	
+	void UpdateCurrentCombatPath(const bool UpdateLocation = false);
+
 	/**
 	 * Updates the tangent in function of the current distance along the spline. Then updates the acceleration so it will simulate an input in the
 	 * direction of the tangent.

Pawn_Unreal/Source/Pawn/Public/GameplayModes/PwnGameplayModeSubsystem.h

@@ -19,6 +19,8 @@ class PAWN_API UPwnGameplayModeSubsystem : public UWorldSubsystem {
 	GENERATED_BODY()
 
 public:
+	static UPwnGameplayModeSubsystem& Get(const UObject* WorldContextObject);
+	
 	virtual void Initialize(FSubsystemCollectionBase& Collection) override;
 
 	virtual void Deinitialize() override;