sdl/input.c

   1 /*
   2  * input.c
   3  * Copyright (C) 1998 Brainchild Design - http://brainchilddesign.com/
   4  *
   5  * Copyright (C) 2001 Chuck Mason <cemason@users.sourceforge.net>
   6  *
   7  * Copyright (C) 2002 Florian Schulze <crow@icculus.org>
   8  *
   9  * This file is part of Jump'n'Bump.
  10  *
  11  * Jump'n'Bump is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * Jump'n'Bump is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  24  */
  25
  26 #include "globals.h"
  27
  28 static int num_joys=0;
  29 static SDL_Joystick *joys[4];
  30
  31 /* assumes joysticks have at least one button, could check numbuttons first? */
  32 #define JOY_LEFT(num) (num_joys>num && SDL_JoystickGetAxis(joys[num], 0)<-3200)
  33 #define JOY_RIGHT(num) (num_joys>num && SDL_JoystickGetAxis(joys[num], 0)>3200)
  34 /* I find using the vertical axis to be annoying -- dnb */
  35 #define JOY_JUMP(num) (num_joys>num && SDL_JoystickGetButton(joys[num], 0))
  36
  37 int calib_joy(int type)
  38 {
  39         return 1;
  40 }
  41
  42 void update_player_actions(void)
  43 {
  44         int tmp;
  45
  46         if (client_player_num < 0) {
  47                 tmp = (key_pressed(KEY_PL1_LEFT) == 1) || JOY_LEFT(3);
  48                 if (tmp != player[0].action_left)
  49                         tellServerPlayerMoved(0, MOVEMENT_LEFT, tmp);
  50                 tmp = (key_pressed(KEY_PL1_RIGHT) == 1) || JOY_RIGHT(3);
  51                 if (tmp != player[0].action_right)
  52                         tellServerPlayerMoved(0, MOVEMENT_RIGHT, tmp);
  53                 tmp = (key_pressed(KEY_PL1_JUMP) == 1) || JOY_JUMP(3);
  54                 if (tmp != player[0].action_up)
  55                         tellServerPlayerMoved(0, MOVEMENT_UP, tmp);
  56
  57                 tmp = (key_pressed(KEY_PL2_LEFT) == 1) || JOY_LEFT(2);
  58                 if (tmp != player[1].action_left)
  59                         tellServerPlayerMoved(1, MOVEMENT_LEFT, tmp);
  60                 tmp = (key_pressed(KEY_PL2_RIGHT) == 1) || JOY_RIGHT(2);
  61                 if (tmp != player[1].action_right)
  62                         tellServerPlayerMoved(1, MOVEMENT_RIGHT, tmp);
  63                 tmp = (key_pressed(KEY_PL2_JUMP) == 1) || JOY_JUMP(2);
  64                 if (tmp != player[1].action_up)
  65                         tellServerPlayerMoved(1, MOVEMENT_UP, tmp);
  66
  67                 tmp = (key_pressed(KEY_PL3_LEFT) == 1) || JOY_LEFT(1);
  68                 if (tmp != player[2].action_left)
  69                         tellServerPlayerMoved(2, MOVEMENT_LEFT, tmp);
  70                 tmp = (key_pressed(KEY_PL3_RIGHT) == 1) || JOY_RIGHT(1);
  71                 if (tmp != player[2].action_right)
  72                         tellServerPlayerMoved(2, MOVEMENT_RIGHT, tmp);
  73                 tmp = (key_pressed(KEY_PL3_JUMP) == 1) || JOY_JUMP(1);
  74                 if (tmp != player[2].action_up)
  75                         tellServerPlayerMoved(2, MOVEMENT_UP, tmp);
  76
  77                 tmp = (key_pressed(KEY_PL4_LEFT) == 1) || JOY_LEFT(0);
  78                 if (tmp != player[3].action_left)
  79                 tellServerPlayerMoved(3, MOVEMENT_LEFT, tmp);
  80                 tmp = (key_pressed(KEY_PL4_RIGHT) == 1) || JOY_RIGHT(0);
  81                 if (tmp != player[3].action_right)
  82                 tellServerPlayerMoved(3, MOVEMENT_RIGHT, tmp);
  83                 tmp = (key_pressed(KEY_PL4_JUMP) == 1) || JOY_JUMP(0);
  84                 if (tmp != player[3].action_up)
  85                 tellServerPlayerMoved(3, MOVEMENT_UP, tmp);
  86         } else {
  87                 tmp = (key_pressed(KEY_PL1_LEFT) == 1) || JOY_LEFT(0);
  88                 if (tmp != player[client_player_num].action_left)
  89                         tellServerPlayerMoved(client_player_num, MOVEMENT_LEFT, tmp);
  90                 tmp = (key_pressed(KEY_PL1_RIGHT) == 1) || JOY_RIGHT(0);
  91                 if (tmp != player[client_player_num].action_right)
  92                         tellServerPlayerMoved(client_player_num, MOVEMENT_RIGHT, tmp);
  93                 tmp = (key_pressed(KEY_PL1_JUMP) == 1) || JOY_JUMP(0);
  94                 if (tmp != player[client_player_num].action_up)
  95                         tellServerPlayerMoved(client_player_num, MOVEMENT_UP, tmp);
  96         }
  97 }
  98
  99 void init_inputs(void)
 100 {
 101         int i;
 102
 103         num_joys = SDL_NumJoysticks();
 104         for(i = 0; i < 4 && i < num_joys; ++i)
 105                 joys[i] = SDL_JoystickOpen(i);
 106
 107         main_info.mouse_enabled = 0;
 108         main_info.joy_enabled = 0;
 109 }