src/client/joystick_controller.h

   1 /*
   2 Minetest
   3 Copyright (C) 2016 est31, <MTest31@outlook.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #ifndef JOYSTICK_HEADER
  21 #define JOYSTICK_HEADER
  22
  23 #include "irrlichttypes_extrabloated.h"
  24 #include "keys.h"
  25 #include <bitset>
  26 #include <vector>
  27
  28 enum JoystickAxis {
  29         JA_SIDEWARD_MOVE,
  30         JA_FORWARD_MOVE,
  31
  32         JA_FRUSTUM_HORIZONTAL,
  33         JA_FRUSTUM_VERTICAL,
  34
  35         // To know the count of enum values
  36         JA_COUNT,
  37 };
  38
  39 struct JoystickAxisLayout {
  40         u16 axis_id;
  41         // -1 if to invert, 1 if to keep it.
  42         int invert;
  43 };
  44
  45
  46 struct JoystickCombination {
  47
  48         virtual bool isTriggered(const irr::SEvent::SJoystickEvent &ev) const=0;
  49
  50         GameKeyType key;
  51 };
  52
  53 struct JoystickButtonCmb : public JoystickCombination {
  54
  55         JoystickButtonCmb() {}
  56         JoystickButtonCmb(GameKeyType key, u32 filter_mask, u32 compare_mask) :
  57                 filter_mask(filter_mask),
  58                 compare_mask(compare_mask)
  59         {
  60                 this->key = key;
  61         }
  62
  63         virtual bool isTriggered(const irr::SEvent::SJoystickEvent &ev) const;
  64
  65         u32 filter_mask;
  66         u32 compare_mask;
  67 };
  68
  69 struct JoystickAxisCmb : public JoystickCombination {
  70
  71         JoystickAxisCmb() {}
  72         JoystickAxisCmb(GameKeyType key, u16 axis_to_compare, int direction, s16 thresh) :
  73                 axis_to_compare(axis_to_compare),
  74                 direction(direction),
  75                 thresh(thresh)
  76         {
  77                 this->key = key;
  78         }
  79
  80         virtual bool isTriggered(const irr::SEvent::SJoystickEvent &ev) const;
  81
  82         u16 axis_to_compare;
  83
  84         // if -1, thresh must be smaller than the axis value in order to trigger
  85         // if  1, thresh must be bigger  than the axis value in order to trigger
  86         int direction;
  87         s16 thresh;
  88 };
  89
  90 struct JoystickLayout {
  91         std::vector<JoystickButtonCmb> button_keys;
  92         std::vector<JoystickAxisCmb> axis_keys;
  93         JoystickAxisLayout axes[JA_COUNT];
  94         s16 axes_dead_border;
  95 };
  96
  97 class JoystickController {
  98
  99 public:
 100         JoystickController();
 101
 102         void onJoystickConnect(const std::vector<irr::SJoystickInfo> &joystick_infos);
 103
 104         bool handleEvent(const irr::SEvent::SJoystickEvent &ev);
 105         void clear();
 106
 107         bool wasKeyDown(GameKeyType b)
 108         {
 109                 bool r = m_past_pressed_keys[b];
 110                 m_past_pressed_keys[b] = false;
 111                 return r;
 112         }
 113         bool getWasKeyDown(GameKeyType b)
 114         {
 115                 return m_past_pressed_keys[b];
 116         }
 117         void clearWasKeyDown(GameKeyType b)
 118         {
 119                 m_past_pressed_keys[b] = false;
 120         }
 121
 122         bool wasKeyReleased(GameKeyType b)
 123         {
 124                 bool r = m_past_released_keys[b];
 125                 m_past_released_keys[b] = false;
 126                 return r;
 127         }
 128         bool getWasKeyReleased(GameKeyType b)
 129         {
 130                 return m_past_pressed_keys[b];
 131         }
 132         void clearWasKeyReleased(GameKeyType b)
 133         {
 134                 m_past_pressed_keys[b] = false;
 135         }
 136
 137         bool isKeyDown(GameKeyType b)
 138         {
 139                 return m_pressed_keys[b];
 140         }
 141
 142         s16 getAxis(JoystickAxis axis)
 143         {
 144                 return m_axes_vals[axis];
 145         }
 146
 147         s16 getAxisWithoutDead(JoystickAxis axis);
 148
 149         f32 doubling_dtime;
 150
 151 private:
 152         void setLayoutFromControllerName(const std::string &name);
 153
 154         JoystickLayout m_layout;
 155
 156         s16 m_axes_vals[JA_COUNT];
 157
 158         u8 m_joystick_id;
 159
 160         std::bitset<KeyType::INTERNAL_ENUM_COUNT> m_pressed_keys;
 161
 162         f32 m_internal_time;
 163
 164         f32 m_past_pressed_time[KeyType::INTERNAL_ENUM_COUNT];
 165
 166         std::bitset<KeyType::INTERNAL_ENUM_COUNT> m_past_pressed_keys;
 167         std::bitset<KeyType::INTERNAL_ENUM_COUNT> m_past_released_keys;
 168 };
 169
 170 #endif