invertValueTransform.h

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/******************************************************************************
** Copyright (c) 2025 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/
 
//! \file
//! \brief Value transformation that inverts input values
 
#pragma once
 
#include "vreInput/export.h"
#include "vreInput/valueTransform.h"
 
namespace makVre
{
//! \brief Value transformation that reverses the sign of input values
//!
//! This transform inverts input values by negating them (multiplying by -1).
//! It's useful for reversing the direction of controls, such as inverting
//! a joystick's Y-axis for flight controls or camera look.
class VREINPUT_DLL DtInvertValueTransform : public DtValueTransform
{
public:
   //! \brief Default constructor
   DtInvertValueTransform();
 
   //! \brief Virtual destructor
   virtual ~DtInvertValueTransform() override;
 
   //! \brief Initialize the inversion transform from configuration
   //!
   //! Configures the inversion transform based on the configuration table.
   //! Does not require specific configuration parameters as inversion
   //! is a simple operation that always negates the input value.
   //!
   //! \param config Pointer to the configuration table
   virtual void init(DtInitTable* config) override;
 
   //! \brief Apply the inversion transformation to an input value
   //!
   //! Negates the input value by multiplying it by -1.0.
   //!
   //! \param value The raw input value to transform
   //! \return The transformed value (input * -1.0)
   virtual float transform(float value) override;
 
protected:
   // No additional members needed for this simple transformation
};
 
} // namespace makVre