File evaJoystick.h

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#pragma once

#include "evaStdReaders.h"

namespace eva
{
  template <class TReader, unsigned short tMinPos = 0, unsigned short tMiddlePos = 512, unsigned short tMaxPos = 1024>
  class Joystick : public TReader
  {
  public:
    Joystick() : trim(0), aDeadZone(0)
    {
    }

    template <typename... Args>
    Joystick(unsigned char aDeadZone, Args... args) : TReader(args...) , trim(0), deadZone(aDeadZone)
    {
    }

    signed short getValue(unsigned short aMinPos, unsigned short aMiddlePos, unsigned short aMaxPos)
    {
      signed short value = TReader::getValue();
      if ((value < aMiddlePos) ^ (aMinPos < aMaxPos))
        return constrain(map(value, aMiddlePos, aMaxPos, this->trim - this->deadZone, 1000), this->trim, 1000);
      else
        return constrain(map(value, aMinPos, aMiddlePos, -1000, this->trim + this->deadZone), -1000, this->trim);
    }

    signed short getValue()
    {
      return getValue(tMinPos, tMiddlePos, tMaxPos);
    }

    void setTrim(short trim)
    {
      this->trim = constrain(trim, -127, 127);
    }

    void addTrim(short trimIncrement)
    {
      this->trim = constrain(this->trim + trimIncrement, -127, 127);
    }

    signed short getTrim()
    {
      return this->trim;
    }

    void setDeadZone(unsigned char deadZone)
    {
      this->deadZone = deadZone;
    }

    unsigned char getDeadZone()
    {
      return this->deadZone;
    }

  private:
    signed char trim;
    unsigned char deadZone;
  };

  template <int tPin, int tPinMode, unsigned short tMinPos, unsigned short tMaxPos>
  using PinSymmetricJoystick = Joystick<AnalogPinReader<tPin, tPinMode>, tMinPos, (tMaxPos + tMinPos) / 2, tMaxPos>;
  template <int tPin, int tPinMode, unsigned short tMinPos, unsigned short tMiddlePos, unsigned short tMaxPos>
  using PinJoystick = Joystick<AnalogPinReader<tPin, tPinMode>, tMinPos, tMiddlePos, tMaxPos>;
};