BPFunLib_Ballistic.h

/* 
 * Copyright (c) 2026 Grzegorz Krug.
 * All Rights Reserved.
 */
 
#pragma once
 
 
#include "YasiuMathBP/YasiuMathBPLibrary.h"
#include "YasiuMathLib.h"
 
 
#include "BPFunLib_Ballistic.generated.h"
 

USTRUCT(BlueprintType, Category="YasiuMath|Ballistics")
struct FBallisticObject {
    GENERATED_BODY()
 
    
    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    FVector Position;

    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    FVector Velocity;

    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    FVector Acceleration;

    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    float MaxSpeed = 0;

    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    float AirFrictionCoeff = 0;
 
    YasiuMath::Ballistics::ProjectileDynamicState<double> ToDynamicObject() const;
 
    FBallisticObject& FromDynamic( const YasiuMath::Ballistics::ProjectileDynamicState<double>& Ob );
};
 

USTRUCT(BlueprintType, Category="YasiuMath|Ballistics")
struct FBallisticInterceptor {
    GENERATED_BODY()
 
    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    FVector Position;

    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    double InitialSpeed = 0;

    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    double Acceleration = 0;

    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    double MaxSpeed = 0;

    UPROPERTY(BlueprintReadWrite, Category="YasiuMath")
    double AirResistance = 0;
 
    YasiuMath::Ballistics::InterceptorParams<double> ToInterceptor() const;
 
    void FromInterceptor( const YasiuMath::Ballistics::InterceptorParams<double>& Ob );
};
 

UCLASS(BlueprintType)
class UYasiuMathFL_Ballistics : public UYasiuMathFunctionLibrary {
    GENERATED_BODY()
 
 
public:
    UFUNCTION(BlueprintCallable, BlueprintPure=false, Category="YasiuMath|Ballistics")
    static FBallisticObject DiscreteStep( const FBallisticObject& Ob, const float DeltaStep );

    UFUNCTION(BlueprintCallable, BlueprintPure=false, Category="YasiuMath|Ballistics")
    static FBallisticObject AutoStep( const FBallisticObject& Ob, const float PredictTime, const float DeltaStep );

    UFUNCTION(BlueprintCallable, BlueprintPure=false, Category="YasiuMath|Ballistics")
    static bool Intercept_Linear(
        const FVector& TargetPosition,
        const FVector& TargetVelocity,
        double InterceptSpeed,
        FVector& HitLocation,
        double& HitTime
    );

    UFUNCTION(BlueprintCallable, BlueprintPure=false, Category="YasiuMath|Ballistics")
    static bool Intercept_Dynamic(
        const FBallisticObject& Target,
        const FBallisticInterceptor Interceptor,
        double MaxQueryTime,
        double StepTime,
        double AccurateStepTime,
        FVector& HitLocation,
        double& HitTime
    );
};