WindSourceSceneProxy.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Math/Vector.h"
 
 
class FWindData
{
public:
    FWindData()
        : Speed(0.0f)
        , MinGustAmt(0.0f)
        , MaxGustAmt(0.0f)
        , Direction(1.0f, 0.0f, 0.0f)
    {
    }
 
    ENGINE_API void PrepareForAccumulate();
    ENGINE_API void AddWeighted(const FWindData& InWindData, float Weight);
    ENGINE_API void NormalizeByTotalWeight(float TotalWeight);
 
    float Speed;
    float MinGustAmt;
    float MaxGustAmt;
    FVector Direction;
};
 
 
class FWindSourceSceneProxy
{
public: 
 
    FWindSourceSceneProxy(const FVector& InDirection, float InStrength, float InSpeed, float InMinGustAmt, float InMaxGustAmt) :
      Position(FVector::ZeroVector),
          Direction(InDirection),
          Strength(InStrength),
          Speed(InSpeed),
          MinGustAmt(InMinGustAmt),
          MaxGustAmt(InMaxGustAmt),
          Radius(0),
          bIsPointSource(false)
      {}
 
    FWindSourceSceneProxy(const FVector& InPosition, float InStrength, float InSpeed, float InMinGustAmt, float InMaxGustAmt, float InRadius) :
      Position(InPosition),
          Direction(FVector::ZeroVector),
          Strength(InStrength),
          Speed(InSpeed),
          MinGustAmt(InMinGustAmt),
          MaxGustAmt(InMaxGustAmt),
          Radius(InRadius),
          bIsPointSource(true)
      {}
 
      ENGINE_API bool GetWindParameters(const FVector& EvaluatePosition, FWindData& WindData, float& Weight) const;
      ENGINE_API bool GetDirectionalWindParameters(FWindData& WindData, float& Weight) const;
      ENGINE_API void ApplyWorldOffset(FVector InOffset);
 
private:
 
    FVector Position;
    FVector Direction;
    float Strength;
    float Speed;
    float MinGustAmt;
    float MaxGustAmt;
    float Radius;
    bool bIsPointSource;
};