breakhack/src/keyboard.c

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2018-02-16 18:11:26 +01:00
/*
* BreakHack - A dungeone crawler RPG
* Copyright (C) 2018 Linus Probert <linus.probert@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "keyboard.h"
#include "util.h"
static bool
extract_key(Direction dir, SDL_Event *event)
{
Uint32 key = event->key.keysym.sym;
switch (dir) {
case UP:
return key == SDLK_UP
|| key == SDLK_w
|| key == SDLK_k;
case DOWN:
return key == SDLK_DOWN
|| key == SDLK_s
|| key == SDLK_j;
case LEFT:
return key == SDLK_LEFT
|| key == SDLK_a
|| key == SDLK_h;
case RIGHT:
return key == SDLK_RIGHT
|| key == SDLK_l
|| key == SDLK_d;
default:
return false;
}
}
bool
keyboard_direction_press(Direction dir, SDL_Event *event)
{
if (event->type != SDL_KEYDOWN)
return false;
return extract_key(dir, event);
}
bool
keyboard_direction_release(Direction dir, SDL_Event *event)
{
if (event->type != SDL_KEYUP)
return false;
return extract_key(dir, event);
}
bool
keyboard_press(Uint32 key, SDL_Event *event)
{
if (event->type != SDL_KEYDOWN)
return false;
return key == (Uint32) event->key.keysym.sym;
}
bool
keyboard_release(Uint32 key, SDL_Event *event)
{
if (event->type != SDL_KEYUP)
return false;
return key == (Uint32) event->key.keysym.sym;
}
bool
keyboard_mod_press(Uint32 key, Uint32 mod, SDL_Event *event)
{
if (event->type != SDL_KEYDOWN)
return false;
if (!(event->key.keysym.mod & mod))
return false;
return key == (Uint32) event->key.keysym.sym;
}