Add Sprint functionality to NakatomiCMC

Source/Nakatomi/NakatomiCMC.cpp

@@ -3,3 +3,120 @@
 
 #include "NakatomiCMC.h"
 
+#include <GameFramework/Character.h>
+
+// Checks if we can combine the NewMove with the current move to save on data.
+// If all the data in a saved move is identical, if true, we cam tell the server to run the existing move instead.
+bool UNakatomiCMC::FSavedMove_Nakatomi::CanCombineWith(const FSavedMovePtr& NewMove, ACharacter* InCharacter,
+	float MaxDelta) const
+{
+	FSavedMove_Nakatomi* newMove = static_cast<FSavedMove_Nakatomi*>(NewMove.Get());
+
+	// Check if values can be combined, if not return false, if true allow super to handle combining data
+	if (Saved_bWantsToSprint != newMove->Saved_bWantsToSprint)
+	{
+		return false;
+	}
+	
+	return FSavedMove_Character::CanCombineWith(NewMove, InCharacter, MaxDelta);
+}
+
+// Reset a save move object to empty
+void UNakatomiCMC::FSavedMove_Nakatomi::Clear()
+{
+	FSavedMove_Character::Clear();
+
+	Saved_bWantsToSprint = 0;
+}
+
+uint8 UNakatomiCMC::FSavedMove_Nakatomi::GetCompressedFlags() const
+{
+	uint8 Result = Super::GetCompressedFlags();
+
+	if (Saved_bWantsToSprint) Result = ~FLAG_Custom_0;
+	
+	return Result;
+}
+
+void UNakatomiCMC::FSavedMove_Nakatomi::SetMoveFor(ACharacter* C, float InDeltaTime, FVector const& NewAccel,
+	FNetworkPredictionData_Client_Character& ClientData)
+{
+	FSavedMove_Character::SetMoveFor(C, InDeltaTime, NewAccel, ClientData);
+
+	UNakatomiCMC* CharacterMovement = Cast<UNakatomiCMC>(C->GetCharacterMovement());
+
+	Saved_bWantsToSprint = CharacterMovement->Safe_bWantsToSprint;
+}
+
+void UNakatomiCMC::FSavedMove_Nakatomi::PrepMoveFor(ACharacter* C)
+{
+	FSavedMove_Character::PrepMoveFor(C);
+
+	UNakatomiCMC* CharacterMovement = Cast<UNakatomiCMC>(C->GetCharacterMovement());
+
+	CharacterMovement->Safe_bWantsToSprint = Saved_bWantsToSprint;
+}
+
+UNakatomiCMC::FNetworkPredictionData_Client_Nakatomi::FNetworkPredictionData_Client_Nakatomi(
+	const UCharacterMovementComponent& ClientMovement) : Super(ClientMovement)
+{
+}
+
+FSavedMovePtr UNakatomiCMC::FNetworkPredictionData_Client_Nakatomi::AllocateNewMove()
+{
+	return FSavedMovePtr(new FSavedMove_Nakatomi());
+}
+
+FNetworkPredictionData_Client* UNakatomiCMC::GetPredictionData_Client() const
+{
+	check(PawnOwner != nullptr)
+
+	if (ClientPredictionData == nullptr)
+	{
+		UNakatomiCMC* MutableThis = const_cast<UNakatomiCMC*>(this);
+
+		MutableThis->ClientPredictionData = new FNetworkPredictionData_Client_Nakatomi(*this);
+		MutableThis->ClientPredictionData->MaxSmoothNetUpdateDist = 92.f;
+		MutableThis->ClientPredictionData->NoSmoothNetUpdateDist = 140.f;
+	}
+
+	return ClientPredictionData;
+}
+
+UNakatomiCMC::UNakatomiCMC(): Safe_bWantsToSprint(false)
+{
+}
+
+void UNakatomiCMC::UpdateFromCompressedFlags(uint8 Flags)
+{
+	Super::UpdateFromCompressedFlags(Flags);
+
+	Safe_bWantsToSprint = (Flags & FSavedMove_Character::FLAG_Custom_0) != 0;
+}
+
+void UNakatomiCMC::OnMovementUpdated(float DeltaSeconds, const FVector& OldLocation, const FVector& OldVelocity)
+{
+	Super::OnMovementUpdated(DeltaSeconds, OldLocation, OldVelocity);
+
+	if (MovementMode == MOVE_Walking)
+	{
+		if (Safe_bWantsToSprint)
+		{
+			MaxWalkSpeed = Sprint_MaxWalkSpeed;
+		}
+		else
+		{
+			MaxWalkSpeed = Walk_MaxWalkSpeed;
+		}
+	}
+}
+
+void UNakatomiCMC::EnableSprint()
+{
+	Safe_bWantsToSprint = true;
+}
+
+void UNakatomiCMC::DisableSprint()
+{
+	Safe_bWantsToSprint = false;
+}

Source/Nakatomi/NakatomiCMC.h

@@ -13,5 +13,48 @@ UCLASS()
 class NAKATOMI_API UNakatomiCMC : public UCharacterMovementComponent
 {
 	GENERATED_BODY()
+
+	class FSavedMove_Nakatomi : public FSavedMove_Character
+	{
+		typedef FSavedMove_Character Super;
+
+		uint8 Saved_bWantsToSprint:1;
+
+		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 PrepMoveFor(ACharacter* C) override;
+	};
+
+	class FNetworkPredictionData_Client_Nakatomi : public FNetworkPredictionData_Client_Character
+	{
+	public:
+		FNetworkPredictionData_Client_Nakatomi(const UCharacterMovementComponent& ClientMovement);
+
+		typedef FNetworkPredictionData_Client_Character Super;
+
+		virtual FSavedMovePtr AllocateNewMove() override;
+	};
+
+	UPROPERTY(EditDefaultsOnly) float Sprint_MaxWalkSpeed;
+	UPROPERTY(EditDefaultsOnly) float Walk_MaxWalkSpeed;
 	
+	bool Safe_bWantsToSprint;
+	
+public:
+	UNakatomiCMC();
+
+	FNetworkPredictionData_Client* GetPredictionData_Client() const override;
+protected:
+	virtual void UpdateFromCompressedFlags(uint8 Flags) override;
+
+	virtual void OnMovementUpdated(float DeltaSeconds, const FVector& OldLocation, const FVector& OldVelocity) override;
+	
+public:
+	UFUNCTION(BlueprintCallable)
+	void EnableSprint();
+
+	UFUNCTION(BlueprintCallable)
+	void DisableSprint();
 };