SquirrelRNG.h

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/*
 * Copyright (c) 2025 Grzegorz Krug.
 * All Rights Reserved.
 */

 
#pragma once
 
 
#include "Components/ActorComponent.h"
 
 
#include  "SquirrelRNG.generated.h"
 

UCLASS(BlueprintType, Blueprintable, DefaultToInstanced)
class YASIUMATH_API USquirrel13 : public UObject {
public:
    GENERATED_BODY()
 
    USquirrel13() {};
 
    USquirrel13( unsigned int seed )
        : m_seed(seed), init_seed(seed) {};
 
    USquirrel13( int position, unsigned int seed )
        : m_position(position), m_seed(seed), init_position(position), init_seed(seed) {};
 
    USquirrel13( int position, unsigned int seed, unsigned int variant )
        : m_position(position), m_seed(seed), m_variant(variant), init_position(position), init_seed(seed) {};
 
    virtual void GetLifetimeReplicatedProps( TArray<class FLifetimeProperty>& OutLifetimeProps ) const override;

    virtual void Serialize( FArchive& Ar ) override;
 
 
protected:
    UPROPERTY(Replicated, SaveGame)
    int m_position{0};
 
    UPROPERTY(Replicated, SaveGame)
    uint32 m_seed{1};

    UPROPERTY(Replicated, SaveGame)
    int m_variant{0};
 
    UPROPERTY(Replicated)
    uint32 init_position = 0;
 
    UPROPERTY(Replicated)
    int32 init_seed = 0;
 
 
public:
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void InitBP( int seed, int position = 0 );

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    int GetCurrentInt( int min, int max ) const;

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    int GetNextInt( int min, int max );

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    double GetCurrentDouble() const;

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    double GetNextDouble();

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    int GetPosition() const;

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void SetPosition( int new_position );

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void OffsetPosition( int offset = 1 );

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    int32 GetSeed() const;

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void SetSeed( int new_seed );

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void SetNoiseVariant( int newVariant = 0 );

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void ResetSeedPos();
 
 
protected:
    virtual uint32 get_current_random() const;

    uint32 get_next_random();

    static uint32 RNG_0( int position, unsigned int seed );

    static uint32 RNG_1( int position, unsigned int seed );

    static uint32 RNG_2( int position, unsigned int seed );

    static uint32 RNG_3( int position, unsigned int seed );

    static uint32 RNG_4( int position, unsigned int seed );

    static uint32 RNG_5( int position, unsigned int seed );
};
 

UCLASS(BlueprintType, Blueprintable, meta=(BlueprintSpawnableComponent), DefaultToInstanced)
class YASIUMATH_API USquirrel13_RNGComponent : public UActorComponent {
    GENERATED_BODY()
 
 
public:
    USquirrel13_RNGComponent();
 
    virtual void GetLifetimeReplicatedProps( TArray<class FLifetimeProperty>& OutLifetimeProps ) const override;
 
    UPROPERTY(BlueprintReadWrite, Replicated, Category="Yasiu|RNG")
    TObjectPtr<USquirrel13> RNG;

    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void InitBP( int seed, int pos = 0 );
 
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    int32 GetSeed() const;
 
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void SetSeed( int64 Seed );
 
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    int GetPosition() const;
 
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    void SetPosition( int Pos );
 
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG", BlueprintPure=false)
    int GetCurrentInt( int min, int max ) const;
 
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    int GetNextInt( int min, int max );
 
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG", BlueprintPure=false)
    double GetCurrentDouble() const;
 
    UFUNCTION(BlueprintCallable, Category="Yasiu|RNG")
    double GetNextDouble();
};