Add Input Actions to Dash on character

Source/Nakatomi/NakatomiCMC.cpp

@@ -32,6 +32,11 @@ bool UNakatomiCMC::FSavedMove_Nakatomi::CanCombineWith(const FSavedMovePtr& NewM
 		return false;
 	}
 
+	if (Saved_bWantsToDash != newMove->Saved_bWantsToDash)
+	{
+		return false;
+	}
+	
 	return FSavedMove_Character::CanCombineWith(NewMove, InCharacter, MaxDelta);
 }
 
@@ -41,6 +46,9 @@ void UNakatomiCMC::FSavedMove_Nakatomi::Clear()
 	FSavedMove_Character::Clear();
 
 	Saved_bWantsToSprint = 0;
+	Saved_bWantsToSlide = 0;
+	Saved_bWantsToAds = 0;
+	Saved_bWantsToDash = 0;
 }
 
 uint8 UNakatomiCMC::FSavedMove_Nakatomi::GetCompressedFlags() const
@@ -48,6 +56,7 @@ uint8 UNakatomiCMC::FSavedMove_Nakatomi::GetCompressedFlags() const
 	uint8 Result = Super::GetCompressedFlags();
 
 	if (Saved_bWantsToSprint) Result = ~FLAG_Custom_0;
+	if (Saved_bWantsToDash) Result = ~FLAG_Dash;
 	
 	return Result;
 }
@@ -62,6 +71,7 @@ void UNakatomiCMC::FSavedMove_Nakatomi::SetMoveFor(ACharacter* C, float InDeltaT
 	Saved_bWantsToSprint = CharacterMovement->Safe_bWantsToSprint;
 	Saved_bWantsToSlide = CharacterMovement->Safe_bWantsToSlide;
 	Saved_bWantsToAds = CharacterMovement->Safe_bWantsToAds;
+	Saved_bWantsToDash = CharacterMovement->Safe_bWantsToDash;
 }
 
 void UNakatomiCMC::FSavedMove_Nakatomi::PrepMoveFor(ACharacter* C)
@@ -73,6 +83,7 @@ void UNakatomiCMC::FSavedMove_Nakatomi::PrepMoveFor(ACharacter* C)
 	CharacterMovement->Safe_bWantsToSprint = Saved_bWantsToSprint;
 	CharacterMovement->Safe_bWantsToSlide = Saved_bWantsToSlide;
 	CharacterMovement->Safe_bWantsToAds = Saved_bWantsToAds;
+	CharacterMovement->Safe_bWantsToDash = Saved_bWantsToDash;
 }
 
 UNakatomiCMC::FNetworkPredictionData_Client_Nakatomi::FNetworkPredictionData_Client_Nakatomi(
@@ -106,6 +117,7 @@ void UNakatomiCMC::UpdateFromCompressedFlags(uint8 Flags)
 	Super::UpdateFromCompressedFlags(Flags);
 
 	Safe_bWantsToSprint = (Flags & FSavedMove_Character::FLAG_Custom_0) != 0;
+	Safe_bWantsToDash = (Flags & FSavedMove_Nakatomi::FLAG_Dash) != 0;
 }
 
 void UNakatomiCMC::OnMovementUpdated(float DeltaSeconds, const FVector& OldLocation, const FVector& OldVelocity)
@@ -154,6 +166,7 @@ bool UNakatomiCMC::CanCrouchInCurrentState() const
 
 void UNakatomiCMC::UpdateCharacterStateBeforeMovement(float DeltaSeconds)
 {
+	// Slide
 	if (MovementMode == MOVE_Walking && Safe_bWantsToSlide && !Safe_bWantsToAds)
 	{
 		FHitResult PotentialSlideSurface;
@@ -168,6 +181,13 @@ void UNakatomiCMC::UpdateCharacterStateBeforeMovement(float DeltaSeconds)
 		ExitSlide();
 	}
 
+	// Dash
+	if (Safe_bWantsToDash && CanDash() && !Safe_bWantsToAds)
+	{
+		PerformDash();
+		Safe_bWantsToDash = false;
+	}
+	
 	Super::UpdateCharacterStateBeforeMovement(DeltaSeconds);
 }
 
@@ -225,6 +245,27 @@ void UNakatomiCMC::DisableAds()
 	Safe_bWantsToAds = false;
 }
 
+void UNakatomiCMC::EnableDash()
+{
+	float CurrentTime = GetWorld()->GetTimeSeconds();
+
+	if (CurrentTime - DashStartTime >= Dash_CooldownDuration)
+	{
+		Safe_bWantsToDash = true;
+	}
+	else
+	{
+		GetWorld()->GetTimerManager().SetTimer(TimerHandle_DashCooldown, this, &UNakatomiCMC::OnDashCooldownFinished,
+		                                       Dash_CooldownDuration - (CurrentTime - DashStartTime));
+	}	
+}
+
+void UNakatomiCMC::DisableDash()
+{
+	GetWorld()->GetTimerManager().ClearTimer(TimerHandle_DashCooldown);
+	Safe_bWantsToDash = false;
+}
+
 bool UNakatomiCMC::IsCustomMovementMode(ECustomMovementMove InCustomMovementMode) const
 {
 	return MovementMode == MOVE_Custom && CustomMovementMode == InCustomMovementMode;
@@ -322,3 +363,29 @@ bool UNakatomiCMC::GetSlideSurface(FHitResult& Hit) const
 	
 	return GetWorld()->LineTraceSingleByProfile(Hit, Start, End, ProfileName);
 }
+
+void UNakatomiCMC::OnDashCooldownFinished()
+{
+	Safe_bWantsToDash = true;
+}
+
+bool UNakatomiCMC::CanDash()
+{
+	return (IsWalking() || IsFalling()) && !IsCrouching() && !Safe_bWantsToAds;
+}
+
+void UNakatomiCMC::PerformDash()
+{
+	DashStartTime = GetWorld()->GetTimeSeconds();
+
+	FVector DashDirection = (Acceleration.IsNearlyZero() ? UpdatedComponent->GetForwardVector() : Acceleration).GetSafeNormal2D();
+	Velocity = Dash_Impulse * (DashDirection + FVector::UpVector * .1f);
+
+	FQuat NewRotation = FRotationMatrix::MakeFromXZ(DashDirection, FVector::UpVector).ToQuat();
+	FHitResult Hit;
+	SafeMoveUpdatedComponent(FVector::ZeroVector, NewRotation, false, Hit);
+
+	SetMovementMode(MOVE_Falling);
+
+	DashStartDelegate.Broadcast();
+}

Source/Nakatomi/NakatomiCMC.h

@@ -7,11 +7,14 @@
 #include "GameFramework/CharacterMovementComponent.h"
 #include "NakatomiCMC.generated.h"
 
+DECLARE_DYNAMIC_MULTICAST_DELEGATE(FDashStartDelegate);
+
 UENUM(BlueprintType)
 enum ECustomMovementMove
 {
 	CMOVE_None UMETA(Hidden),
 	CMOVE_Slide UMETA(DisplayName = "Slide"),
+	CMOVE_Dash UMETA(DisplayName = "Dash"),
 	CMOVE_MAX UMETA(Hidden),
 };
 
@@ -25,19 +28,29 @@ class NAKATOMI_API UNakatomiCMC : public UCharacterMovementComponent
 
 	class FSavedMove_Nakatomi : public FSavedMove_Character
 	{
-		typedef FSavedMove_Character Super;
+		using Super = FSavedMove_Character;
+
+	public:
+		enum CompressedFlags
+		{
+			FLAG_Sprint = 0x10,
+			FLAG_Dash = 0x20,
+			FLAG_Custom2 = 0x30,
+			FLAG_Custom3 = 0x40,
+		};
 
 		// Flag
 		uint8 Saved_bWantsToSprint : 1;
-		
 		uint8 Saved_bWantsToSlide : 1;
-
 		uint8 Saved_bWantsToAds : 1;
+		uint8 Saved_bWantsToDash : 1;
 
-		virtual bool CanCombineWith(const FSavedMovePtr& NewMove, ACharacter* InCharacter, float MaxDelta) const override;
+		virtual bool
+		CanCombineWith(const FSavedMovePtr& NewMove, ACharacter* InCharacter, float MaxDelta) const override;
 		virtual void Clear() override;
 		virtual uint8 GetCompressedFlags() const override;
-		virtual void SetMoveFor(ACharacter* C, float InDeltaTime, FVector const& NewAccel, FNetworkPredictionData_Client_Character& ClientData) override;
+		virtual void SetMoveFor(ACharacter* C, float InDeltaTime, const FVector& NewAccel,
+		                        FNetworkPredictionData_Client_Character& ClientData) override;
 		virtual void PrepMoveFor(ACharacter* C) override;
 	};
 
@@ -46,7 +59,7 @@ class NAKATOMI_API UNakatomiCMC : public UCharacterMovementComponent
 	public:
 		FNetworkPredictionData_Client_Nakatomi(const UCharacterMovementComponent& ClientMovement);
 
-		typedef FNetworkPredictionData_Client_Character Super;
+		using Super = FNetworkPredictionData_Client_Character;
 
 		virtual FSavedMovePtr AllocateNewMove() override;
 	};
@@ -75,20 +88,35 @@ class NAKATOMI_API UNakatomiCMC : public UCharacterMovementComponent
 	UPROPERTY(EditDefaultsOnly)
 	float Ads_Multiplier = 0.5f;
 
+	UPROPERTY(EditDefaultsOnly)
+	float Dash_Impulse = 1500.0f;
+
+	UPROPERTY(EditDefaultsOnly)
+	float Dash_CooldownDuration = 1.0f;
+
 	bool Safe_bWantsToSprint;
 	bool Safe_bWantsToSlide;
 	bool Safe_bWantsToAds;
+	bool Safe_bWantsToDash;
+
+	float DashStartTime;
+	FTimerHandle TimerHandle_DashCooldown;
 
 	UPROPERTY(Transient)
 	ANakatomiCharacter* NakatomiCharacterOwner;
 
+public:
+	UPROPERTY(BlueprintAssignable)
+	FDashStartDelegate DashStartDelegate;
+
 public:
 	UNakatomiCMC();
 
 protected:
-	void InitializeComponent() override;
+	virtual void InitializeComponent() override;
+
+	virtual FNetworkPredictionData_Client* GetPredictionData_Client() const override;
 
-	FNetworkPredictionData_Client* GetPredictionData_Client() const override;
 protected:
 	virtual void UpdateFromCompressedFlags(uint8 Flags) override;
 
@@ -127,16 +155,22 @@ public:
 	UFUNCTION(BlueprintCallable)
 	void DisableAds();
 
+	UFUNCTION(BlueprintCallable)
+	void EnableDash();
+
+	UFUNCTION(BlueprintCallable)
+	void DisableDash();
+
 	UFUNCTION()
 	bool IsCustomMovementMode(ECustomMovementMove InCustomMovementMode) const;
 
 private:
-
 	void EnterSlide();
-
 	void ExitSlide();
-
 	void PhysSlide(float deltaTime, int32 Iterations); // Every movement mode requires a physics function to work
-
 	bool GetSlideSurface(FHitResult& Hit) const;
+
+	void OnDashCooldownFinished();
+	bool CanDash();
+	void PerformDash();
 };

Source/Nakatomi/PlayerCharacter.cpp

@@ -199,6 +199,12 @@ void APlayerCharacter::SetupPlayerInputComponent(UInputComponent* PlayerInputCom
 			Input->BindAction(SlideAction, ETriggerEvent::Started, this, &APlayerCharacter::BeginSlideCallback);
 			Input->BindAction(SlideAction, ETriggerEvent::Completed, this, &APlayerCharacter::EndSlideCallback);
 		}
+
+		if (DashAction)
+		{
+			Input->BindAction(DashAction, ETriggerEvent::Started, this, &APlayerCharacter::BeginDashCallback);
+			Input->BindAction(DashAction, ETriggerEvent::Completed, this, &APlayerCharacter::EndDashCallback);
+		}
 	}
 }
 
@@ -570,6 +576,22 @@ void APlayerCharacter::EndSlideCallback(const FInputActionInstance& Instance)
 	}
 }
 
+void APlayerCharacter::BeginDashCallback(const FInputActionInstance& Instance)
+{
+	if (UNakatomiCMC* cmc = GetCharacterMovementComponent())
+	{
+		cmc->EnableDash();
+	}
+}
+
+void APlayerCharacter::EndDashCallback(const FInputActionInstance& Instance)
+{
+	if (UNakatomiCMC* cmc = GetCharacterMovementComponent())
+	{
+		cmc->DisableDash();
+	}
+}
+
 void APlayerCharacter::OnFire()
 {
 	if (!IsFiring || CurrentWeapon->GetAmmoCount() == 0)

Source/Nakatomi/PlayerCharacter.h

@@ -71,6 +71,9 @@ public:
 	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite)
 	UInputAction* SlideAction;
 
+	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite)
+	UInputAction* DashAction;
+	
 	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite)
 	TSoftObjectPtr<UInputMappingContext> InputMappingContext;
 
@@ -186,6 +189,10 @@ public:
 
 	void EndSlideCallback(const FInputActionInstance& Instance);
 
+	void BeginDashCallback(const FInputActionInstance& Instance);
+
+	void EndDashCallback(const FInputActionInstance& Instance);
+	
 	virtual void OnFire() override;
 
 	void WeaponCooldownHandler();