blender/source/gameengine/GameLogic/Joystick/SCA_JoystickEvents.cpp

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/**
* ***** BEGIN GPL LICENSE BLOCK *****
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*
* 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 2
* of the License, or (at your option) any later version.
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*
* 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, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): snailrose.
*
* ***** END GPL LICENSE BLOCK *****
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*/
#ifndef DISABLE_SDL
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#include <SDL.h>
#endif
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#include "SCA_Joystick.h"
#include "SCA_JoystickPrivate.h"
#ifndef DISABLE_SDL
void SCA_Joystick::OnAxisMotion(SDL_Event* sdl_event)
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{
pFillAxes();
m_axisnum = sdl_event->jaxis.axis;
m_axisvalue = sdl_event->jaxis.value;
m_istrig_axis = 1;
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}
void SCA_Joystick::OnHatMotion(SDL_Event* sdl_event)
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{
m_hatdir = sdl_event->jhat.value;
m_hatnum = sdl_event->jhat.hat;
m_istrig_hat = 1;
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}
void SCA_Joystick::OnButtonUp(SDL_Event* sdl_event)
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{
m_istrig_button = 1;
/* this is needed for the "all events" option
* so we know if there are no buttons pressed */
int i;
for (i=0; i<m_buttonmax; i++) {
if (SDL_JoystickGetButton(m_private->m_joystick, i)) {
m_buttonnum = i;
return;
}
}
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m_buttonnum = -2;
}
void SCA_Joystick::OnButtonDown(SDL_Event* sdl_event)
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{
if(sdl_event->jbutton.button <= m_buttonmax) /* unsigned int so always above 0 */
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{
m_istrig_button = 1;
m_buttonnum = sdl_event->jbutton.button;
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}
}
void SCA_Joystick::OnNothing(SDL_Event* sdl_event)
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{
m_istrig_axis = m_istrig_button = m_istrig_hat = 0;
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}
/* only handle events for 1 joystick */
void SCA_Joystick::HandleEvents(void)
{
SDL_Event sdl_event;
int i;
for (i=0; i<JOYINDEX_MAX; i++) {
if(SCA_Joystick::m_instance[i])
SCA_Joystick::m_instance[i]->OnNothing(&sdl_event);
}
if(SDL_PollEvent(&sdl_event))
{
/* Note! m_instance[sdl_event.jaxis.which]
* will segfault if over JOYINDEX_MAX, not too nice but what are the chances? */
switch(sdl_event.type)
{
case SDL_JOYAXISMOTION:
SCA_Joystick::m_instance[sdl_event.jaxis.which]->OnAxisMotion(&sdl_event);
break;
case SDL_JOYHATMOTION:
SCA_Joystick::m_instance[sdl_event.jhat.which]->OnHatMotion(&sdl_event);
break;
case SDL_JOYBUTTONUP:
SCA_Joystick::m_instance[sdl_event.jbutton.which]->OnButtonUp(&sdl_event);
break;
case SDL_JOYBUTTONDOWN:
SCA_Joystick::m_instance[sdl_event.jbutton.which]->OnButtonDown(&sdl_event);
break;
#if 0 /* Not used yet */
case SDL_JOYBALLMOTION:
SCA_Joystick::m_instance[sdl_event.jball.which]->OnBallMotion(&sdl_event);
break;
#endif
default:
printf("SCA_Joystick::HandleEvents, Unknown SDL event, this should not happen\n");
break;
}
}
}
#endif