51 - Leaning and Strafing

Source/Blaster/Character/BlasterAnimInstance.cpp

@@ -5,6 +5,7 @@
 
 #include "BlasterCharacter.h"
 #include "GameFramework/CharacterMovementComponent.h"
+#include "Kismet/KismetMathLibrary.h"
 
 void UBlasterAnimInstance::NativeInitializeAnimation()
 {
@@ -33,4 +34,18 @@ void UBlasterAnimInstance::NativeUpdateAnimation(float DeltaSeconds)
 	bWeaponEquipped = BlasterCharacter->IsWeaponEquipped();
 	bIsCrouched = BlasterCharacter->bIsCrouched;
 	bAiming = BlasterCharacter->IsAiming();
+
+	// Offset Yaw for Strafing
+	FRotator AimRotation = BlasterCharacter->GetBaseAimRotation();
+	FRotator MovementRotation = UKismetMathLibrary::MakeRotFromX(BlasterCharacter->GetVelocity());
+	FRotator DeltaRot = UKismetMathLibrary::NormalizedDeltaRotator(MovementRotation, AimRotation);
+	DeltaRotation = FMath::RInterpTo(DeltaRotation, DeltaRot, DeltaSeconds, 6.f);
+	YawOffset = DeltaRotation.Yaw;
+	
+	CharacterRotationLastFrame = CharacterRotation;
+	CharacterRotation = BlasterCharacter->GetActorRotation();
+	const FRotator Delta = UKismetMathLibrary::NormalizedDeltaRotator(CharacterRotation, CharacterRotationLastFrame);
+	const float Target = Delta.Yaw / DeltaSeconds;
+	const float Interp = FMath::FInterpTo(Lean, Target, DeltaSeconds, 6.f);
+	Lean = FMath::Clamp(Interp, -90.f, 90.f);
 }

Source/Blaster/Character/BlasterAnimInstance.h

@@ -41,4 +41,14 @@ private:
 	
 	UPROPERTY(BlueprintReadOnly, Category="Movement", meta=(AllowPrivateAccess = "true"))
 	bool bAiming;
+
+	UPROPERTY(BlueprintReadOnly, Category="Movement", meta=(AllowPrivateAccess = "true"))
+	float YawOffset;
+
+	UPROPERTY(BlueprintReadOnly, Category="Movement", meta=(AllowPrivateAccess = "true"))
+	float Lean;
+
+	FRotator CharacterRotationLastFrame;
+	FRotator CharacterRotation;
+	FRotator DeltaRotation;
 };

Source/Blaster/Components/CombatComponent.cpp

@@ -6,6 +6,7 @@
 #include "Blaster/Character/BlasterCharacter.h"
 #include "Blaster/Weapon/Weapon.h"
 #include "Engine/SkeletalMeshSocket.h"
+#include "GameFramework/CharacterMovementComponent.h"
 #include "Net/UnrealNetwork.h"
 
 UCombatComponent::UCombatComponent()
@@ -24,6 +25,15 @@ void UCombatComponent::SetAiming(bool bIsAiming)
 	ServerSetAiming(bIsAiming);
 }
 
+void UCombatComponent::OnRep_EquippedWeapon()
+{
+	if (EquippedWeapon && Character)
+	{
+		Character->GetCharacterMovement()->bOrientRotationToMovement = false;
+		Character->bUseControllerRotationYaw = true;
+	}
+}
+
 void UCombatComponent::ServerSetAiming_Implementation(bool bIsAiming)
 {
 	bAiming = bIsAiming;
@@ -55,4 +65,6 @@ void UCombatComponent::EquipWeapon(AWeapon* WeaponToEquip)
 		HandSocket->AttachActor(EquippedWeapon, Character->GetMesh());
 	}
 	EquippedWeapon->SetOwner(Character);
+	Character->GetCharacterMovement()->bOrientRotationToMovement = false;
+	Character->bUseControllerRotationYaw = true;
 }

Source/Blaster/Components/CombatComponent.h

@@ -28,10 +28,13 @@ protected:
 	UFUNCTION(Server, Reliable)
 	void ServerSetAiming(bool bIsAiming);
 
+	UFUNCTION()
+	void OnRep_EquippedWeapon();
+
 private:
 	class ABlasterCharacter* Character;
 	
-	UPROPERTY(Replicated)
+	UPROPERTY(ReplicatedUsing=OnRep_EquippedWeapon)
 	class AWeapon* EquippedWeapon;
 
 	UPROPERTY(Replicated)