84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
#ifndef _JOYSTICK_H_
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#define _JOYSTICK_H_
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#include <Arduino.h>
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#include <Bounce2.h>
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#include <list>
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using std::list;
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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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enum ButtonType {
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BUTTON_PASSTHRU = 0x1, // always use the (debounced) absolute state of the input
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BUTTON_PULSED = 0x2, // on button press, send an on signal followed immediately by an off signal.
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BUTTON_PULSED_DOUBLE_ACTION = 0x4, // Send a button press twice - once for press and once for release.
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BUTTON_PULSED_DOUBLE_ACTION_SPLIT = 0x8, // Send two separate button presses - one button on press, another on release.
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BUTTON_LATCHED_MOMENTARY = 0x10
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};
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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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struct Button {
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ButtonType type;
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Bounce bouncer;
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uint8_t index0;
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uint8_t index1; // only used by BUTTON_PULSED_DOUBLE_ACTION_SPLIT
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bool pressed = false; // only used by BUTTON_LATCHED_MOMENTARY
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bool inverted = false; // if true, send button press on release and vice versa.
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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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void AddButton(uint8_t pin, ButtonType type, bool pullup=true);
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void AddAxis(uint8_t pin); // Axes don't actually work yet!
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// Public access to these functions is deprecated and they may become private in a future
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// version. Prefer the above API instead.
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void SetAxis(uint8_t axis, int16_t value);
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void PressButton(uint8_t button);
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void ReleaseButton(uint8_t button);
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void ReleaseAllButtons();
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void Write();
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private:
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void _ReleasePulsedButtons();
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void _UpdateButton(uint8_t index);
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void _UpdateAxis(uint8_t index);
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Button _buttons[JOYSTICK_NUM_BUTTONS];
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uint8_t _num_buttons;
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uint8_t _last_button_index; // a single physical button can have multiple logical buttons. _last_button_index tracks the number of logical / virtual buttons we have defined.
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bool _have_pulsed_button;
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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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// Internal use only.
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#define _BUTTON_PULSED_TYPES (BUTTON_PULSED | BUTTON_PULSED_DOUBLE_ACTION | BUTTON_PULSED_DOUBLE_ACTION_SPLIT)
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#endif
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