113 lines
3.5 KiB
C++
113 lines
3.5 KiB
C++
/***************************************************************************
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alienBlaster
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Copyright (C) 2004
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Paul Grathwohl, Arne Hormann, Daniel Kuehn, Soenke Schwardt
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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***************************************************************************/
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using namespace std;
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#include <vector>
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#include "input.h"
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#include "SDL.h"
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#include "settings.h"
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Input input;
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const int initialSensitivity = 4096;
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Input::Input(){
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joystick = 0;
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getJoystick();
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}
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Input::~Input(){
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freeJoystick();
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joystick = 0;
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}
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void Input::getJoystick() {
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if (joystick) return;
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if (!SDL_InitSubSystem(SDL_INIT_JOYSTICK)) {
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SDL_JoystickEventState(SDL_ENABLE);
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if (SDL_NumJoysticks() > 0) {
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joystick = SDL_JoystickOpen(0);
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} else {
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freeJoystick();
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}
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}
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}
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void Input::freeJoystick() {
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if (joystick) {
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SDL_JoystickClose(joystick);
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joystick = 0;
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}
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SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
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}
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#ifdef DEBUG
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const bool pressed(const SDL_Event& event) {
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if (event.type == SDL_JOYBUTTONDOWN || event.type == SDL_KEYDOWN) return true;
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if (event.type == SDL_JOYAXISMOTION) return event.jaxis.value / 3200;
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return false;
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}
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void debugEvent(const SDL_Event& event, const SDLKey code) {
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if (event.type == SDL_JOYBUTTONDOWN || event.type == SDL_JOYBUTTONUP) {
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printf("Joystick button%d event: %s (%d)\n",
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event.jbutton.button, (pressed(event)) ? "pressed" : "released", code);
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} else if (event.type == SDL_JOYAXISMOTION && pressed(event)) {
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printf("Joystick axis%d event: %s (%d)\n",
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event.jaxis.axis, (event.jaxis.value > 0) ? "raised" : "lowered", code);
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}
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}
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const SDLKey translateEvent(const SDL_Event& event) {
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if (event.type == SDL_KEYDOWN || event.type == SDL_KEYUP) {
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return event.key.keysym.sym;
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}
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if (event.type == SDL_JOYAXISMOTION) {
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return (SDLKey) (1024 + event.jaxis.axis * 2 + ((event.jaxis.value > 0) ? 1 : 0));
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}
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if (event.type == SDL_JOYBUTTONDOWN || event.type == SDL_JOYBUTTONUP) {
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return (SDLKey) (1040 + event.jbutton.button);
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}
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return (SDLKey) 0;
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}
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#endif
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const SDLKey Input::translate(const SDL_Event& event) {
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#ifdef DEBUG
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debugEvent(event, translateEvent(event));
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#endif
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if (event.type == SDL_KEYDOWN || event.type == SDL_KEYUP) {
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return event.key.keysym.sym;
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}
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if (event.type == SDL_JOYAXISMOTION) {
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return (SDLKey) (1024 + event.jaxis.axis * 2 + ((event.jaxis.value > 0) ? 1 : 0));
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}
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if (event.type == SDL_JOYBUTTONDOWN || event.type == SDL_JOYBUTTONUP) {
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return (SDLKey) (1040 + event.jbutton.button);
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}
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return (SDLKey) 0;
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}
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const bool Input::isPressed(const SDL_Event& event) {
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if (event.type == SDL_JOYBUTTONDOWN || event.type == SDL_KEYDOWN || event.type == SDL_MOUSEBUTTONDOWN) return true;
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if (event.type == SDL_JOYAXISMOTION) return event.jaxis.value / initialSensitivity;
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return false;
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}
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