src/triggers.cpp

   1 /*
   2 Copyright (C) 2004-2010 Parallel Realities
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the 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, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "triggers.h"
  22
  23 /**
  24 * Checks against various objects (Train, SpawnPoint, Teleporter, Trap)
  25 * to see if they should be activated. If the
  26 * object name matches the link name, it's active status is changed.
  27 * @param linkName The name of the link to check against
  28 * @param activateMessage The message to display on successful trigger
  29 * @param active The new status of the object
  30 */
  31 void activateTrigger(const char *linkName, const char *activateMessage, bool active)
  32 {
  33         if (strcmp(linkName, "@none@") == 0)
  34                 return;
  35
  36         if (strcmp(linkName, "WATERLEVEL") == 0)
  37         {
  38                 int newLevel = atoi(activateMessage);
  39
  40                 // only if the new level is less than our current level
  41                 // (ie - raising water up!)
  42                 if (newLevel < map.waterLevel)
  43                 {
  44                         map.requiredWaterLevel = atoi(activateMessage);
  45                         engine.setInfoMessage("Water level is rising", 1, INFO_ACTIVATE);
  46                 }
  47                 return;
  48         }
  49
  50         if (strcmp(linkName, "OBSTACLERESET") == 0)
  51         {
  52                 if (!active)
  53                         return;
  54
  55                 Entity *obstacle = (Entity*)map.obstacleList.getHead();
  56
  57                 while (obstacle->next != NULL)
  58                 {
  59                         obstacle = (Entity*)obstacle->next;
  60
  61                         if (strcmp(obstacle->name, activateMessage) == 0)
  62                         {
  63                                 addTeleportParticles(obstacle->x + (obstacle->width / 2), obstacle->y + (obstacle->height / 2), 50, SND_TELEPORT2);
  64                                 obstacle->place(obstacle->tx, obstacle->ty);
  65                                 Math::removeBit(&obstacle->flags, ENT_TELEPORTING);
  66                                 obstacle->dx = obstacle->dy = 0;
  67                                 obstacle->environment = ENV_AIR;
  68                                 addTeleportParticles(obstacle->x + (obstacle->width / 2), obstacle->y + (obstacle->height / 2), 50, SND_TELEPORT2);
  69                         }
  70                 }
  71
  72                 engine.setInfoMessage("Obstacles Reset", 0, INFO_ACTIVATE);
  73
  74                 return;
  75         }
  76
  77         bool linkOkay = false;
  78
  79         Train *train = (Train*)map.trainList.getHead();
  80         SpawnPoint *sp = (SpawnPoint*)map.spawnList.getHead();
  81         Teleporter *tele = (Teleporter*)map.teleportList.getHead();
  82         Trap *trap = (Trap*)map.trapList.getHead();
  83
  84         while (train->next != NULL)
  85         {
  86                 train = (Train*)train->next;
  87
  88                 if (strcmp(linkName, train->name) == 0)
  89                 {
  90                         train->active = active;
  91                         if ((train->active) && (strcmp(activateMessage, "@none@")))
  92                                 engine.setInfoMessage(activateMessage, 1, INFO_ACTIVATE);
  93
  94                         if (train->type != TR_TRAIN)
  95                                 audio.playSound(SND_OPENDOOR, CH_TOUCH);
  96
  97                         linkOkay = true;
  98                 }
  99         }
 100
 101         while (sp->next != NULL)
 102         {
 103                 sp = (SpawnPoint*)sp->next;
 104
 105                 if (strcmp(linkName, sp->name) == 0)
 106                 {
 107                         sp->active = !sp->active;
 108                         if ((sp->active) && (strcmp(activateMessage, "@none@")))
 109                                 engine.setInfoMessage(activateMessage, 1, INFO_ACTIVATE);
 110
 111                         linkOkay = true;
 112                 }
 113         }
 114
 115         while (tele->next != NULL)
 116         {
 117                 tele = (Teleporter*)tele->next;
 118
 119                 if (strcmp(linkName, tele->name) == 0)
 120                 {
 121                         tele->active = active;
 122                         if ((tele->active) && (strcmp(activateMessage, "@none@")))
 123                                 engine.setInfoMessage(activateMessage, 1, INFO_ACTIVATE);
 124
 125                         linkOkay = true;
 126                 }
 127         }
 128
 129         while (trap->next != NULL)
 130         {
 131                 trap = (Trap*)trap->next;
 132
 133                 if (strcmp(linkName, trap->name) == 0)
 134                 {
 135                         toggleTrap(trap);
 136                         if (strcmp(activateMessage, "@none@"))
 137                                 engine.setInfoMessage(activateMessage, 1, INFO_ACTIVATE);
 138                         linkOkay = true;
 139                 }
 140         }
 141
 142         if (linkOkay)
 143         {
 144                 showMessageLineDef(linkName, active);
 145         }
 146         else
 147         {
 148                 debug(("WARNING : No such object '%s'!\n", linkName));
 149         }
 150 }