circuitpython/shared-bindings/gamepad/GamePad.c

158 lines
6.1 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Radomir Dopieralski for Adafruit Industries
*
* 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 "shared-bindings/gamepad/GamePad.h"
#include "py/obj.h"
#include "py/runtime.h"
#include "py/mphal.h"
#include "py/gc.h"
#include "py/mpstate.h"
#include "shared-bindings/gamepad/__init__.h"
#include "shared-bindings/digitalio/DigitalInOut.h"
#include "supervisor/shared/translate.h"
#include "supervisor/shared/tick.h"
//| class GamePad:
//| """Scan buttons for presses
//|
//| Usage::
//|
//| import board
//| import digitalio
//| import gamepad
//| import time
//|
//| B_UP = 1 << 0
//| B_DOWN = 1 << 1
//|
//|
//| pad = gamepad.GamePad(
//| digitalio.DigitalInOut(board.D10),
//| digitalio.DigitalInOut(board.D11),
//| )
//|
//| y = 0
//| while True:
//| buttons = pad.get_pressed()
//| if buttons & B_UP:
//| y -= 1
//| print(y)
//| elif buttons & B_DOWN:
//| y += 1
//| print(y)
//| time.sleep(0.1)
//| while buttons:
//| # Wait for all buttons to be released.
//| buttons = pad.get_pressed()
//| time.sleep(0.1)"""
//|
//| def __init__(self, b1: Any, b2: Any, b3: Any, b4: Any, b5: Any, b6: Any, b7: Any, b8: Any):
//| """Initializes button scanning routines.
//|
//| The ``b1``-``b8`` parameters are ``DigitalInOut`` objects, which
//| immediately get switched to input with a pull-up, (unless they already
//| were set to pull-down, in which case they remain so), and then scanned
//| regularly for button presses. The order is the same as the order of
//| bits returned by the ``get_pressed`` function. You can re-initialize
//| it with different keys, then the new object will replace the previous
//| one.
//|
//| The basic feature required here is the ability to poll the keys at
//| regular intervals (so that de-bouncing is consistent) and fast enough
//| (so that we don't miss short button presses) while at the same time
//| letting the user code run normally, call blocking functions and wait
//| on delays.
//|
//| They button presses are accumulated, until the ``get_pressed`` method
//| is called, at which point the button state is cleared, and the new
//| button presses start to be recorded."""
//| ...
//|
STATIC mp_obj_t gamepad_make_new(const mp_obj_type_t *type, size_t n_args,
const mp_obj_t *args, mp_map_t *kw_args) {
if (n_args > 8 || n_args == 0) {
mp_raise_TypeError(translate("argument num/types mismatch"));
}
for (size_t i = 0; i < n_args; ++i) {
assert_digitalinout(args[i]);
}
gamepad_obj_t* gamepad_singleton = MP_STATE_VM(gamepad_singleton);
if (!gamepad_singleton ||
!MP_OBJ_IS_TYPE(MP_OBJ_FROM_PTR(gamepad_singleton), &gamepad_type)) {
gamepad_singleton = m_new_ll_obj(gamepad_obj_t);
gamepad_singleton->base.type = &gamepad_type;
if (!MP_STATE_VM(gamepad_singleton)) {
supervisor_enable_tick();
}
MP_STATE_VM(gamepad_singleton) = gamepad_singleton;
}
common_hal_gamepad_gamepad_init(gamepad_singleton, args, n_args);
return MP_OBJ_FROM_PTR(gamepad_singleton);
}
//| def get_pressed(self, ) -> Any:
//| """Get the status of buttons pressed since the last call and clear it.
//|
//| Returns an 8-bit number, with bits that correspond to buttons,
//| which have been pressed (or held down) since the last call to this
//| function set to 1, and the remaining bits set to 0. Then it clears
//| the button state, so that new button presses (or buttons that are
//| held down) can be recorded for the next call."""
//| ...
//|
STATIC mp_obj_t gamepad_get_pressed(mp_obj_t self_in) {
gamepad_obj_t* gamepad_singleton = MP_STATE_VM(gamepad_singleton);
mp_obj_t pressed = MP_OBJ_NEW_SMALL_INT(gamepad_singleton->pressed);
gamepad_singleton->pressed = gamepad_singleton->last;
return pressed;
}
MP_DEFINE_CONST_FUN_OBJ_1(gamepad_get_pressed_obj, gamepad_get_pressed);
//| def deinit(self, ) -> Any:
//| """Disable button scanning."""
//| ...
//|
STATIC mp_obj_t gamepad_deinit(mp_obj_t self_in) {
common_hal_gamepad_gamepad_deinit(self_in);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(gamepad_deinit_obj, gamepad_deinit);
STATIC const mp_rom_map_elem_t gamepad_locals_dict_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_get_pressed), MP_ROM_PTR(&gamepad_get_pressed_obj)},
{ MP_OBJ_NEW_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&gamepad_deinit_obj)},
};
STATIC MP_DEFINE_CONST_DICT(gamepad_locals_dict, gamepad_locals_dict_table);
const mp_obj_type_t gamepad_type = {
{ &mp_type_type },
.name = MP_QSTR_GamePad,
.make_new = gamepad_make_new,
.locals_dict = (mp_obj_dict_t*)&gamepad_locals_dict,
};