src/control/haptic_manager.cpp

   1 /*
   2  *  SuperTux
   3  *  Copyright (C) 2010 Florian Forster <octo at verplant.org>
   4  *
   5  *  This program is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include "control/haptic_manager.hpp"
  20 #include "util/log.hpp"
  21
  22 HapticManager::HapticManager () /* {{{ */
  23 {
  24   int i;
  25
  26   _device = NULL;
  27   memset (_effects, 0, sizeof (_effects));
  28   for (i = 0; i < ST_HAPTIC_EFFECT_MAX; i++)
  29     _effect_ids[i] = -1;
  30 } /* }}} HapticManager */
  31
  32 /* Public methods */
  33 void HapticManager::addJoystick (SDL_Joystick *j) { /* {{{ */
  34   int supported;
  35
  36   if (j == NULL)
  37     return;
  38
  39   if (_device != NULL)
  40     return;
  41
  42   if (SDL_JoystickIsHaptic (j) <= 0)
  43     return;
  44
  45   _device = SDL_HapticOpenFromJoystick (j);
  46   if (_device == NULL)
  47     return;
  48
  49   supported = SDL_HapticQuery (_device);
  50   if ((supported & SDL_HAPTIC_SINE) == 0)
  51   {
  52     SDL_HapticClose (_device);
  53     _device = NULL;
  54     return;
  55   }
  56
  57   /* Setup buttjump */
  58   _effects[ST_HAPTIC_EFFECT_BUTTJUMP].type = SDL_HAPTIC_SINE;
  59   _effects[ST_HAPTIC_EFFECT_BUTTJUMP].periodic.direction.type = SDL_HAPTIC_POLAR;
  60   _effects[ST_HAPTIC_EFFECT_BUTTJUMP].periodic.direction.dir[0] = 18000; /* south */
  61   _effects[ST_HAPTIC_EFFECT_BUTTJUMP].periodic.period = 50;
  62   _effects[ST_HAPTIC_EFFECT_BUTTJUMP].periodic.magnitude = 0x4FFF;
  63   _effects[ST_HAPTIC_EFFECT_BUTTJUMP].periodic.length = 250;
  64   _effects[ST_HAPTIC_EFFECT_BUTTJUMP].periodic.attack_length = 0;
  65   _effects[ST_HAPTIC_EFFECT_BUTTJUMP].periodic.fade_length = 0;
  66
  67   _effect_ids[ST_HAPTIC_EFFECT_BUTTJUMP] = SDL_HapticNewEffect (_device,
  68       &_effects[ST_HAPTIC_EFFECT_BUTTJUMP]);
  69   if (_effect_ids[ST_HAPTIC_EFFECT_BUTTJUMP] < 0)
  70   {
  71     SDL_HapticClose (_device);
  72     _device = NULL;
  73     return;
  74   }
  75
  76   log_debug << "Haptic manager: Successfully added joystick." << std::endl;
  77   return;
  78 } /* }}} void addJoystick */
  79
  80 void HapticManager::playEffect (haptic_effect_t idx) { /* {{{ */
  81   if ((idx < 0) || (idx >= ST_HAPTIC_EFFECT_MAX))
  82     return;
  83
  84   if (_device == NULL)
  85     return;
  86
  87   if (_effect_ids[idx] < 0)
  88     return;
  89
  90   SDL_HapticRunEffect (_device, _effect_ids[idx],
  91       /* iterations = */ 1);
  92 } /* }}} void playEffect */
  93
  94 /* vim: set sw=2 sts=2 et fdm=marker : */