Jump in direction of player input

SwordNGun/Source/SwordNGun/Private/Characters/SNGCharacterBase.cpp

@@ -69,6 +69,7 @@ ASNGCharacterBase::ASNGCharacterBase(const FObjectInitializer& ObjectInitializer
 		UE_LOG(LogTemp, Warning, TEXT("SNGCharacterBase :: Could not get skeletal mesh. Did you forget to set it?"));
 	}
 
+	InputThreshold = 0.1f;
 
 	DefaultFOV = 90.0f;
 	SprintFOV = 110.0f;
@@ -206,29 +207,52 @@ void ASNGCharacterBase::Tick(float DeltaTime)
 	if(CharacterMovementDebug)
 	{
 		float LateralSpeed = GetVelocity().Size2D();
+		FVector VelocityDir = GetVelocity();
+		VelocityDir.Normalize();
+		FVector LateralVelocityDir = FVector(VelocityDir.X, VelocityDir.Y, 0.0f); 
+		
 		FVector StartPos(GetActorLocation().X,
 						 GetActorLocation().Y,
 						GetActorLocation().Z - GetCapsuleComponent()->GetScaledCapsuleHalfHeight());
 		FVector ActorForward = UKismetMathLibrary::GetForwardVector(GetActorRotation());
-		DrawDebugDirectionalArrow(GetWorld(),
-			StartPos, StartPos + (ActorForward * ((LateralSpeed / GetCharacterMovement()->MaxWalkSpeed) * 100.0f)),
-			10.0f, FColor::Blue, false, -1.0f, 0, 2.0f);
 
+		// Draw arrow showing velocity 
+		DrawDebugDirectionalArrow(GetWorld(),
+			StartPos, StartPos + (VelocityDir * ((GetVelocity().Size() / GetCharacterMovement()->MaxWalkSpeed) * 100.0f)),
+			10.0f, FColor::Yellow, false, -1.0f, 0, 2.0f);
+		
+		// Draw arrow showing lateral velocity
+		StartPos.Z += 1; // avoid z-fighting
+		DrawDebugDirectionalArrow(GetWorld(),
+			StartPos, StartPos + (LateralVelocityDir * ((LateralSpeed / GetCharacterMovement()->MaxWalkSpeed) * 100.0f)),
+			10.0f, FColor::Orange, false, -1.0f, 0, 2.0f);
+		
+		// draw arrow showing what direction the player is inputting (WASD or right thumbstick) in the world relative to the camera 
 		FVector CurrInputDirection = GetInputAsWorldDirection();
 		CurrInputDirection.Normalize();
+		StartPos.Z += 1; // avoid z-fighting
 		DrawDebugDirectionalArrow(GetWorld(), StartPos, StartPos + (CurrInputDirection * 100.0f),
 		10.0f, FColor::Purple, false, -1.0f, 0, 2.0f);
 
+		// Draw arrow showing where character is facing
+		StartPos.Z += 1; // avoid z-fighting
+		DrawDebugDirectionalArrow(GetWorld(),
+			StartPos, StartPos + (ActorForward * 100.0f),
+			10.0f, FColor::Blue, false, -1.0f, 0, 2.0f);
+		
 		FString DebugMsg = FString::Printf(TEXT("MaxWalkSpeed: %f"), GetCharacterMovement()->MaxWalkSpeed);
 		GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Magenta, DebugMsg);
 		
-		
 		DebugMsg = FString::Printf(TEXT("LateralSpeed: %f"), LateralSpeed);
 		GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Magenta, DebugMsg);
 		
 		DebugMsg = FString::Printf(TEXT("RotationRate: %s"), *GetCharacterMovement()->RotationRate.ToString());
 		GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Magenta, DebugMsg);
 
+		bool InputThresholdIsMet = CurrInputDirection.Size2D() >= InputThreshold;
+		DebugMsg = FString::Printf(TEXT("InputThresholdIsMet: %hs"), InputThresholdIsMet ? "true" : "false");
+		GEngine->AddOnScreenDebugMessage(-1, 0.0f, FColor::Magenta, DebugMsg);
+		
 		if(ShowCharacterTrajectory)
 		{
 			if(GetWorld()->TimeSeconds - LastSavedPosTime >= TrajectoryPeriod)
@@ -260,6 +284,6 @@ void ASNGCharacterBase::SetupPlayerInputComponent(UInputComponent* PlayerInputCo
 
 	// actions
 	PlayerInputComponent->BindAction("Jump", IE_Pressed, this, &ASNGCharacterBase::StartJump);
-	PlayerInputComponent->BindAction("Jump", IE_Released, this, &ASNGCharacterBase::StopJumping);
+	//PlayerInputComponent->BindAction("Jump", IE_Released, this, &ASNGCharacterBase::StopJumping);
 }
 

SwordNGun/Source/SwordNGun/Private/Components/SNGCharacterMovementComponent.cpp

@@ -3,6 +3,7 @@
 
 #include "Components/SNGCharacterMovementComponent.h"
 
+#include "Characters/SNGCharacterBase.h"
 #include "GameFramework/Character.h"
 #include "Kismet/KismetMathLibrary.h"
 #include "PhysicsEngine/PhysicsSettings.h"
@@ -33,6 +34,8 @@ USNGCharacterMovementComponent::USNGCharacterMovementComponent()
 	// jump
 	MaxJumpHeight = 250.0f;
 	DesiredJumpDuration = 0.75f;
+	DefaultJumpLateralVelocity = DefaultMaxWalkSpeed;
+	LateralVelocityScaling = FVector2D(1.0f, 1.0f);
 	ComputeGravityScaleAndJumpZVelocity();
 
 	// dash
@@ -78,16 +81,16 @@ void USNGCharacterMovementComponent::RestoreMovementDefaults()
 
 void USNGCharacterMovementComponent::Dash()
 {
-	FLaunchParameters LaunchParams;
+	FLaunchParameters DashParams;
-	LaunchParams.bOverrideX = true;
+	DashParams.bOverrideLateralVelocityClamping = true;
-	LaunchParams.bOverrideY = true;
+	DashParams.bOverrideX = true;
-	LaunchParams.bOverrideZ = true;
+	DashParams.bOverrideY = true;
-	LaunchParams.bOverrideMovementMode = false;
+	DashParams.bOverrideZ = true;
-	LaunchParams.GroundFriction = DashGroundFriction;
+	DashParams.bOverrideMovementMode = false;
-	LaunchParams.GravityScale = DashGravityScale;
+	DashParams.GroundFriction = DashGroundFriction;
-	LaunchParams.FloatTime = DashFloatTime;
+	DashParams.GravityScale = DashGravityScale;
-	LaunchParams.SlideTime = DashSlideTime;
+	DashParams.FloatTime = DashFloatTime;
-	
+	DashParams.SlideTime = DashSlideTime;
 	
 	// sets gravity and friction targets which will start interpolating after float time and slide time elapse respectively
 	TargetGravityScale = DefaultGravityScale;
@@ -95,12 +98,12 @@ void USNGCharacterMovementComponent::Dash()
 	GravityScaleInterpSpeed = DashGravityToDefaultSpeed;
 	GroundFrictionInterpSpeed = DashGroundFrictionToDefaultSpeed;
 	
-	FRotator CharacterRot = FRotator(0.0f, GetCharacterOwner()->GetActorRotation().Yaw, 0.0f);
+	FRotator CharacterRot = FRotator(0.0f, CharacterOwner->GetActorRotation().Yaw, 0.0f);
 	FVector LaunchDir = FVector(UKismetMathLibrary::GetForwardVector(CharacterRot));
 	LaunchDir.Normalize();
 
-	LaunchParams.Velocity = LaunchDir * DashVelocity;
+	DashParams.Velocity = LaunchDir * DashVelocity;
-	LaunchCharacter(LaunchParams);
+	LaunchCharacter(DashParams);
 }
 
 #if WITH_EDITOR
@@ -136,7 +139,6 @@ void USNGCharacterMovementComponent::LaunchCharacter(const FLaunchParameters Lau
 {
 	Velocity *= LaunchParams.VelocityScale;
 	
-	// 
 	if(LaunchParams.bOverrideX)
 	{
 		Velocity.X = LaunchParams.Velocity.X;
@@ -164,6 +166,14 @@ void USNGCharacterMovementComponent::LaunchCharacter(const FLaunchParameters Lau
 		Velocity.Z += LaunchParams.Velocity.Z;
 	}
 
+	if(!LaunchParams.bOverrideLateralVelocityClamping)
+	{
+		// clamp lateral velocity to max walk speed
+		FVector LateralVelocity = FVector(Velocity.X, Velocity.Y, 0.0f);
+		LateralVelocity = LateralVelocity.GetClampedToMaxSize(DefaultMaxWalkSpeed);
+		Velocity = FVector(LateralVelocity.X, LateralVelocity.Y, Velocity.Z);
+	}
+	
 	GroundFriction = LaunchParams.bUseDefaultGroundFriction ? DefaultGroundFriction : LaunchParams.GroundFriction;
 	GravityScale = LaunchParams.bUseDefaultGravityScale ? DefaultGravityScale : LaunchParams.GravityScale;
 	FloatTime = LaunchParams.FloatTime;
@@ -192,13 +202,27 @@ bool USNGCharacterMovementComponent::DoJump(bool bReplayingMoves)
 		// Don't jump if we can't move up/down.
 		if (!bConstrainToPlane || FMath::Abs(PlaneConstraintNormal.Z) != 1.f)
 		{
-
+			ASNGCharacterBase* CharacterOwnerAsSNGChar = Cast<ASNGCharacterBase>(CharacterOwner);
+			if(CharacterOwnerAsSNGChar)
+			{
 				FLaunchParameters JumpParams;
+
+				FVector WorldInputDir = CharacterOwnerAsSNGChar->GetInputAsWorldDirection();
+				if(WorldInputDir.Size2D() >= CharacterOwnerAsSNGChar->GetInputThreshold())
+				{
+					FVector JumpLateralVelocity = WorldInputDir * DefaultJumpLateralVelocity;
+					JumpParams.Velocity.X = JumpLateralVelocity.X;
+					JumpParams.Velocity.Y = JumpLateralVelocity.Y;
+				}
+				
 				JumpParams.Velocity.Z = DefaultJumpZVelocity;
+				JumpParams.bOverrideLateralVelocityClamping = false;
 				JumpParams.bOverrideX = false;
 				JumpParams.bOverrideY = false;
 				JumpParams.bOverrideZ = true;
 
+				JumpParams.VelocityScale = FVector(LateralVelocityScaling, 1.0f);
+				
 				JumpParams.bUseDefaultGroundFriction = true;
 				JumpParams.bUseDefaultGravityScale = true;
 			
@@ -208,6 +232,12 @@ bool USNGCharacterMovementComponent::DoJump(bool bReplayingMoves)
 				LaunchCharacter(JumpParams);
 				return true;
 			}
+			else
+			{
+				UE_LOG(LogTemp, Error, TEXT("SNGCharacterMovementComponent :: DoJump :: Could not cast CharacterOwner to ASNGCharacterBase"));
+				return false;
+			}
+		}
 	}
 	
 	return false;

SwordNGun/Source/SwordNGun/Public/Characters/SNGCharacterBase.h

@@ -18,6 +18,10 @@ public:
 	// Sets default values for this character's properties
 	ASNGCharacterBase(const FObjectInitializer& ObjectInitializer);
 
+	FVector GetInputAsWorldDirection();
+
+	FORCEINLINE float GetInputThreshold() { return InputThreshold; } 
+	
 protected:
 	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category="Components")
 	UCameraComponent* CameraComponent;
@@ -28,6 +32,10 @@ protected:
 	UPROPERTY(BlueprintReadOnly)
 	FVector2D InputDirection;
 
+	/** Magnitude InputDirection needs to meet for the input to be considered "non-zero" */
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category="Input")
+	float InputThreshold;
+	
 	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category="Animations")
 	UAnimMontage* JumpNeutralMontage;
 	
@@ -73,8 +81,6 @@ protected:
 	// Called when the game starts or when spawned
 	virtual void BeginPlay() override;
 	
-	FVector GetInputAsWorldDirection();
-	
 public:	
 	// Called every frame
 	virtual void Tick(float DeltaTime) override;

SwordNGun/Source/SwordNGun/Public/Components/SNGCharacterMovementComponent.h

@@ -22,6 +22,10 @@ struct FLaunchParameters
 	UPROPERTY(EditAnywhere, BlueprintReadWrite)
 	FVector VelocityScale;
 
+	/** If true, lateral velocity will NOT be clamped to max walk speed after performing all other velocity update operations */ 
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	bool bOverrideLateralVelocityClamping;
+	
 	/**
 	 *	Should the X component of character's velocity be overriden with Velocity parameter or added?
 	 *	Default is false which means Velocity X component will be added to current character's velocity
@@ -84,6 +88,7 @@ struct FLaunchParameters
 	FLaunchParameters()
 	: Velocity(FVector::ZeroVector)
 	, VelocityScale(FVector::OneVector)
+	, bOverrideLateralVelocityClamping(false)
 	, bOverrideX(false)
 	, bOverrideY(false)
 	, bOverrideZ(false)
@@ -227,10 +232,6 @@ protected:
 	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category="SNG Character Movement|Defaults|Air", meta=(ClampMin="0", UIMin="0"))
 	float DefaultGravityScale;
 
-	/** How much to dampen lateral velocities at the start of a jump */
-	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category="SNG Character Movement|Defaults|Air", meta=(ClampMin="0", UIMin="0"))
-	float LateralVelocityDampening;
-
 	/** Gravity Scale we want character to interpolate to. Interpolated based on GravityScaleInterpSpeed. */
 	UPROPERTY(BlueprintReadWrite)
 	float TargetGravityScale;
@@ -260,7 +261,7 @@ protected:
 	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category="SNG Character Movement|Jump", meta=(ClampMin="0", UIMin="0"))
 	float DesiredJumpDuration;
 	
-	/** Force to continuously apply to character when they are holding the jump button */
+	/** Z velocity set on the character when they are press the jump button */
 	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category="SNG Character Movement|Jump", meta=(ClampMin="0", UIMin="0"))
 	float DefaultJumpZVelocity;
 	
@@ -272,6 +273,18 @@ protected:
 	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category="SNG Character Movement|Jump", meta=(ClampMin="0", UIMin="0"))
 	float MaxJumpTime;
 
+	/**
+	 *	Lateral velocity to set when the player initiates jump and is holding a direction.
+	 *
+	 *	This value is multiplied by the world direction the player is inputting.
+	 */
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category="SNG Character Movement|Jump", meta=(ClampMin="0", UIMin="0"))
+	float DefaultJumpLateralVelocity;
+	
+	/** How much to scale lateral velocity by when a jump is initiated */
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category="SNG Character Movement|Jump", meta=(ClampMin="0", UIMin="0"))
+	FVector2D LateralVelocityScaling;
+	
 	void ComputeGravityScaleAndJumpZVelocity();
 	
 	virtual bool DoJump(bool bReplayingMoves) override;