src/triggers.cpp

   1 /*
   2 Copyright (C) 2004-2011 Parallel Realities
   3 Copyright (C) 2011-2015 Perpendicular Dimensions
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (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.
  13
  14 See the GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 */
  21
  22 #include "triggers.h"
  23
  24 /**
  25 * Checks against various objects (Train, SpawnPoint, Teleporter, Trap)
  26 * to see if they should be activated. If the
  27 * object name matches the link name, it's active status is changed.
  28 * @param linkName The name of the link to check against
  29 * @param activateMessage The message to display on successful trigger
  30 * @param active The new status of the object
  31 */
  32 void activateTrigger(const char *linkName, const char *activateMessage, bool active)
  33 {
  34         if (strcmp(linkName, "@none@") == 0)
  35                 return;
  36
  37         if (strcmp(linkName, "WATERLEVEL") == 0)
  38         {
  39                 int newLevel = atoi(activateMessage);
  40
  41                 // only if the new level is less than our current level
  42                 // (ie - raising water up!)
  43                 if (newLevel < map.waterLevel)
  44                 {
  45                         map.requiredWaterLevel = atoi(activateMessage);
  46                         engine.setInfoMessage("Water level is rising", 1, INFO_ACTIVATE);
  47                 }
  48                 return;
  49         }
  50
  51         if (strcmp(linkName, "OBSTACLERESET") == 0)
  52         {
  53                 if (!active)
  54                         return;
  55
  56                 Entity *obstacle = (Entity*)map.obstacleList.getHead();
  57
  58                 while (obstacle->next != NULL)
  59                 {
  60                         obstacle = (Entity*)obstacle->next;
  61
  62                         if (strcmp(obstacle->name, activateMessage) == 0)
  63                         {
  64                                 addTeleportParticles(obstacle->x + (obstacle->width / 2), obstacle->y + (obstacle->height / 2), 50, SND_TELEPORT2);
  65                                 obstacle->place(obstacle->tx, obstacle->ty);
  66                                 Math::removeBit(&obstacle->flags, ENT_TELEPORTING);
  67                                 obstacle->dx = obstacle->dy = 0;
  68                                 obstacle->environment = ENV_AIR;
  69                                 addTeleportParticles(obstacle->x + (obstacle->width / 2), obstacle->y + (obstacle->height / 2), 50, SND_TELEPORT2);
  70                         }
  71                 }
  72
  73                 engine.setInfoMessage("Obstacles Reset", 0, INFO_ACTIVATE);
  74
  75                 return;
  76         }
  77
  78         bool linkOkay = false;
  79
  80         Train *train = (Train*)map.trainList.getHead();
  81         SpawnPoint *sp = (SpawnPoint*)map.spawnList.getHead();
  82         Teleporter *tele = (Teleporter*)map.teleportList.getHead();
  83         Trap *trap = (Trap*)map.trapList.getHead();
  84
  85         while (train->next != NULL)
  86         {
  87                 train = (Train*)train->next;
  88
  89                 if (strcmp(linkName, train->name) == 0)
  90                 {
  91                         train->active = active;
  92                         if ((train->active) && (strcmp(activateMessage, "@none@")))
  93                                 engine.setInfoMessage(activateMessage, 1, INFO_ACTIVATE);
  94
  95                         if (train->type != TR_TRAIN)
  96                                 audio.playSound(SND_OPENDOOR, CH_TOUCH);
  97
  98                         linkOkay = true;
  99                 }
 100         }
 101
 102         while (sp->next != NULL)
 103         {
 104                 sp = (SpawnPoint*)sp->next;
 105
 106                 if (strcmp(linkName, sp->name) == 0)
 107                 {
 108                         sp->active = !sp->active;
 109                         if ((sp->active) && (strcmp(activateMessage, "@none@")))
 110                                 engine.setInfoMessage(activateMessage, 1, INFO_ACTIVATE);
 111
 112                         linkOkay = true;
 113                 }
 114         }
 115
 116         while (tele->next != NULL)
 117         {
 118                 tele = (Teleporter*)tele->next;
 119
 120                 if (strcmp(linkName, tele->name) == 0)
 121                 {
 122                         tele->active = active;
 123                         if ((tele->active) && (strcmp(activateMessage, "@none@")))
 124                                 engine.setInfoMessage(activateMessage, 1, INFO_ACTIVATE);
 125
 126                         linkOkay = true;
 127                 }
 128         }
 129
 130         while (trap->next != NULL)
 131         {
 132                 trap = (Trap*)trap->next;
 133
 134                 if (strcmp(linkName, trap->name) == 0)
 135                 {
 136                         toggleTrap(trap);
 137                         if (strcmp(activateMessage, "@none@"))
 138                                 engine.setInfoMessage(activateMessage, 1, INFO_ACTIVATE);
 139                         linkOkay = true;
 140                 }
 141         }
 142
 143         if (linkOkay)
 144         {
 145                 showMessageLineDef(linkName, active);
 146         }
 147         else
 148         {
 149                 debug(("WARNING : No such object '%s'!\n", linkName));
 150         }
 151 }