79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
#ifndef _JOYSTICK_H_
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#define _JOYSTICK_H_
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#include "Button.h"
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#include "Matrix.h"
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#include <Arduino.h>
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#include <Mux.h>
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using namespace admux;
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// If you're using the arduino-big-joystick firmware, these numbers can't be
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// changed. If you're writing your own Report Descriptor, tune these to match by
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// defining them *before* you include Joystick.h.
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#ifndef JOYSTICK_NUM_AXES
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#define JOYSTICK_NUM_AXES 8
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#endif
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#ifndef JOYSTICK_NUM_BUTTONS
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#define JOYSTICK_NUM_BUTTONS 40
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#endif
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#define JOYSTICK_NUM_BYTES (JOYSTICK_NUM_BUTTONS+7)/8
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struct JoyReport {
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int16_t axis[JOYSTICK_NUM_AXES];
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uint8_t button[JOYSTICK_NUM_BYTES];
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};
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bool operator ==(JoyReport a, JoyReport b);
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bool operator !=(JoyReport a, JoyReport b);
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class Joystick {
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public:
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Joystick(bool debug=false);
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void Init();
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void Update();
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// Add a button to the joystick.
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// Button types are documented in the ButtonType enum.
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// If `pullup` is true, your button should connect the pin to ground. (also be sure that your board supports INPUT_PULLUP on that pin)
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// If `pullup` is false, your button should connect the pin to VCC.
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// Setting `analogOnly` to true indicates your button *must* be read with analog code, such as the A6 and A7 pins
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// on the Arduino Nano.
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void AddButton(uint8_t pin, ButtonType type, bool pullup=true);
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void AddMuxButton(uint8_t channel, Mux* mux, ButtonType type, bool pullup=true);
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void AddMatrixButton(uint8_t row, uint8_t col, Matrix* matrix, ButtonType type, bool pullup=true);
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// Add a rotary encoder. ENCODER button types allow you to treat an encoder as a momentary button or an axis (TODO)
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void AddEncoder(uint8_t pin1, uint8_t pin2, ButtonType type);
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// Add an analog axis to the joystick. THIS METHOD IS NOT CURRENTLY TESTED OR SUPPORTED. It might work, but probably not.
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void AddAxis(uint8_t pin);
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// These members should not be used by end users; todo: remember how friend classes work
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void PressButton(uint8_t button);
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void ReleaseButton(uint8_t button);
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private:
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void SetAxis(uint8_t axis, int16_t value);
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void ReleaseAllButtons();
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void Write();
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void _UpdateAxis(uint8_t index);
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void _addButton(ButtonType type, Reader* reader);
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Button* _buttons[JOYSTICK_NUM_BUTTONS];
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uint8_t _num_buttons;
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uint8_t _virtual_buttons; // a single user-defined button can have multiple virtual buttons.
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uint8_t _axes[JOYSTICK_NUM_AXES];
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uint8_t _num_axes;
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JoyReport _joyReport;
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bool _debug;
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};
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#endif
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