text: 
  //====================================================================================================================================================
  // Copyright 2020 Lake Orion Robotics FIRST Team 302 
  //
  // Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), 
  // to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
  // and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
  //
  // The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
  //
  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
  // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
  // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE 
  // OR OTHER DEALINGS IN THE SOFTWARE.
  //====================================================================================================================================================
  
  #include <gamepad/axis/DeadbandValue.h>
  
  #include <cmath>
  
  
  //==================================================================================
  /// <summary>
  /// Method:         GetInstance
  /// Description:    Static singleton method to create the object
  /// </summary>
  //==================================================================================
  DeadbandValue* DeadbandValue::m_instance = nullptr;
  DeadbandValue* DeadbandValue::GetInstance()
  {
      if (m_instance == nullptr)
      {
          m_instance = new DeadbandValue();
      }
      return m_instance;
  }
  
  //==================================================================================
  /// <summary>
  /// Method:         ApplyDeadband
  /// Description:    Apply the standard deadband
  /// </summary>
  //==================================================================================
  double DeadbandValue::ApplyDeadband
  (
      double inputVal // <I> - value to apply profile to
  ) const
  {
      auto val = inputVal;
      if ( std::abs(val) < IDeadband::M_DEADBAND_VALUE )
      {
          val = 0.0;
      }
      else if ( val > 0.0 )
      {
          val -= IDeadband::M_DEADBAND_VALUE;         // shift deadband to 0.0
          val /= (1.0 - IDeadband::M_DEADBAND_VALUE); // scale value to the range
      }
      else if ( val < 0.0 )
      {
          val += IDeadband::M_DEADBAND_VALUE;         // shift deadband to 0.0
          val /= (1.0 - IDeadband::M_DEADBAND_VALUE); // scale value to range
      }
      return val;
  }
  
  
  