ProjectilePathSelector.h

이 파일의 문서화 페이지로 가기

// Fill out your copyright notice in the Description page of Project Settings.
 
#pragma once
 
#include "CK_UE.h"
#include "ProjectilePathSelector.generated.h"
 
class AActor;
struct FTargetSelectionResult;
 
 
USTRUCT(BlueprintType)
struct CK_UE_API FProjectilePathResult
{
    GENERATED_BODY()
 
public:
    UPROPERTY(BlueprintReadOnly, Category = "ProjectilePath")
    FVector TargetLocation = FVector::ZeroVector;
 
    UPROPERTY(BlueprintReadOnly, Category = "ProjectilePath")
    FVector GroundLocation = FVector::ZeroVector;
 
    UPROPERTY(BlueprintReadOnly, Category = "ProjectilePath")
    float HeightAboveGround = 0.0f;
 
    UPROPERTY(BlueprintReadOnly, Category = "ProjectilePath")
    float PathAlpha = 0.0f;
};
 
 
USTRUCT(BlueprintType)
struct CK_UE_API FWeaponRequestImpactResult
{
    GENERATED_BODY()
 
public:
    UPROPERTY(BlueprintReadOnly, Category = "ProjectilePath")
    FVector TargetLocation = FVector::ZeroVector;
 
    UPROPERTY(BlueprintReadOnly, Category = "ProjectilePath")
    FVector ImpactPoint = FVector::ZeroVector;
 
    UPROPERTY(BlueprintReadOnly, Category = "ProjectilePath")
    float TargetDistance = 0.0f;
};
 
 
USTRUCT(BlueprintType)
struct CK_UE_API FProjectilePathSelector
{
    GENERATED_BODY()
 
public:
    bool ResolveImpactPoint(const AActor* RequestingActor, const FTargetSelectionResult& TargetResult, float MaxImpactDistance, float ImpactObstructionOffset, FWeaponRequestImpactResult& OutImpactResult) const;
    bool ResolveLaunchPath(const AActor* RequestingActor, const FVector& ImpactPoint, float SpawnHeightAboveImpact, float SpawnLateralOffset, float SpawnForwardOffset, FVector& OutFrom, FVector& OutDirection) const;
    bool ResolveTargetHeightLocation(const UObject* WorldContextObject, const FVector& PathStart, const FVector& PathEnd, float TargetHeight, FProjectilePathResult& OutResult) const;
 
private:
    float ClampDistanceByObstruction(const AActor* RequestingActor, const FVector& StartLocation, const FVector& Direction, float Distance, float ImpactObstructionOffset) const;
    bool BSForHeight(const FVector& PathStart, const FVector& PathEnd, float TargetHeight, FProjectilePathResult& OutResult, float PreviousAlpha, float PreviousDelta, float CurrentAlpha, float CurrentDelta, bool& bValue) const;
    bool EvaluateHeightAtAlpha(const FVector& PathStart, const FVector& PathEnd, float Alpha, float TargetHeight, FProjectilePathResult& OutResult) const;
    bool FindGroundLocation(const FVector& PathLocation, FVector& OutGroundLocation) const;
 
private:
    float GroundTraceUpOffset = 1000.0f;
    float GroundTraceDownDistance = 10000.0f;
 
    int32 SegmentCount = 16;
    int32 BinarySearchIterationCount = 12;
 
private:
    UPROPERTY(Transient)
    mutable TObjectPtr<UWorld> CachedWorld;
};