Starting multiplayer Marble game

Source/BigMarbleWorld/Public/Marble/MarbleMovementComponent.h

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+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Components/ActorComponent.h"
+#include "MarbleMovementComponent.generated.h"
+
+class USphereComponent;
+
+UCLASS(ClassGroup=(Custom), meta=(BlueprintSpawnableComponent))
+class BIGMARBLEWORLD_API UMarbleMovementComponent : public UActorComponent
+{
+	GENERATED_BODY()
+
+public:
+	// Sets default values for this component's properties
+	UMarbleMovementComponent();
+	
+	UFUNCTION(BlueprintCallable, Category = "Marble|Movement")
+	void SetMoveDirection(FVector WorldDirection);
+	
+	UFUNCTION(BlueprintCallable, Category = "Marble|Movement")
+	void BeginJump();
+	
+	UFUNCTION(BlueprintCallable, Category = "Marble|Jump")
+	void EndJump();
+	
+	UFUNCTION(BlueprintCallable, Category = "Marble|State")
+	bool IsGrounded() const;
+	
+	// Called when the game starts
+	virtual void BeginPlay() override;
+	
+	// Called every frame
+	virtual void TickComponent(float DeltaTime, ELevelTick TickType,
+	                           FActorComponentTickFunction* ThisTickFunction) override;
+	
+	UFUNCTION(BlueprintCallable, Category = "Marble|Network")
+	bool IsLocallyControlling() const;
+	
+protected:
+	
+	UFUNCTION(Server, Unreliable)
+	void ServerSetMoveDirection(FVector WorldDirection);
+	
+	UFUNCTION(Server, Unreliable)
+	void ServerSyncTransform(
+		FVector_NetQuantize100 Location,
+		FRotator Rotation,
+		FVector_NetQuantize100 LinearVel,
+		FVector_NetQuantize100 AngularVel
+	);
+	
+	UFUNCTION(NetMulticast, Unreliable)
+	void MulticastSyncTransform(
+		FVector_NetQuantize100 Location,
+		FRotator Rotation,
+		FVector_NetQuantize100 LinearVel,
+		FVector_NetQuantize100 AngularVel
+	);
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Movement")
+	float RollForce = 1200.0f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Movement")
+	float MaxAngularSpeed = 8.0f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Movement")
+	float MoveForce = 400.0f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Movement")
+	float MaxLinearSpeed = 1200.0f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Movement")
+	float AerialControlFactor = 0.3f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Jump")
+	float JumpInitialImpulse = 350.0f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Jump")
+	float JumpHoldForce = 1800.0f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Jump")
+	float MaxJumpHoldDuration = 0.3f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Jump")
+	float GroundCheckDistance = 5.0f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Network")
+	float SyncSendRate = 20.0f;
+	
+	UPROPERTY(EditAnywhere, Category = "Marble|Network")
+	float ProxyCorrectionSpeed = 10.0f;
+	
+private:
+	
+	UPROPERTY(Transient)
+	TObjectPtr<USphereComponent> PhysicsSphere; // Resolved from owner
+	
+	UPROPERTY(BlueprintReadOnly, Category = "Marble|Movement", meta = (AllowPrivateAccess = "true"))
+	FVector CachedMoveDirection = FVector::ZeroVector;
+	
+	float SyncTimer = 0.0f;
+	
+	bool bIsJumping = false;
+	float JumpHoldElapsed = 0.0f;
+	
+	FVector_NetQuantize100 ProxyTargetLocation;
+	FRotator ProxyTargetRotation = FRotator::ZeroRotator;
+	FVector_NetQuantize100 ProxyTargetLinearVel;
+	FVector_NetQuantize100 ProxyTargetAngularVel;
+	bool bHasProxyTarget = false;
+	
+	void TickControlling(float DeltaTime);
+	void TickProxy(float DeltaTime);
+	
+};