src/explosions.cpp

   1 /*
   2 Copyright (C) 2004-2011 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 "explosions.h"
  22
  23 void addExplosion(float x, float y, int radius, Entity *owner)
  24 {
  25         audio.playSound(SND_GRENADE, CH_EXPLODE);
  26
  27         float dx, dy;
  28         int distX, distY;
  29         int distance;
  30
  31         Sprite *explosion = graphics.getSprite("Explosion", true);
  32
  33         for (int i = 0 ; i < radius ; i++)
  34         {
  35                 dx = Math::rrand(-radius, radius); dx /= 10;
  36                 dy = Math::rrand(-radius, radius); dy /= 10;
  37                 map.addParticle(x, y, dx, dy, Math::rrand(5, 30), graphics.white, explosion, PAR_WEIGHTLESS);
  38         }
  39
  40         Entity *enemy = (Entity*)map.enemyList.getHead();
  41
  42         while (enemy->next != NULL)
  43         {
  44                 enemy = (Entity*)enemy->next;
  45
  46                 if ((enemy->flags & ENT_IMMUNE) || (enemy->flags & ENT_IMMUNEEXPLODE))
  47                 {
  48                         continue;
  49                 }
  50
  51                 if (enemy->dead == DEAD_DYING)
  52                 {
  53                         continue;
  54                 }
  55
  56                 distX = (int)fabs(enemy->x + (enemy->width / 2) - x);
  57                 distY = (int)fabs(enemy->y + (enemy->height / 2) - y);
  58
  59                 distX *= distX;
  60                 distY *= distY;
  61
  62                 distance = (int)sqrt(distX + distY);
  63
  64                 if (radius - distance > 0)
  65                 {
  66                         if (enemy->health > 0)
  67                         {
  68                                 enemy->health -= radius - distance;
  69
  70                                 if (enemy->health <= 0)
  71                                 {
  72                                         checkObjectives("Enemy", false);
  73                                         checkObjectives(enemy->name, false);
  74                                 }
  75
  76                                 if (!(enemy->flags & ENT_STATIC))
  77                                 {
  78                                         if (enemy->flags & ENT_EXPLODES)
  79                                         {
  80                                                 audio.playSound(SND_ELECDEATH1 + Math::prand() % 3, CH_DEATH);
  81                                         }
  82                                         else
  83                                         {
  84                                                 if (game.gore)
  85                                                 {
  86                                                         audio.playSound(SND_DEATH1 + Math::prand() % 3, CH_DEATH);
  87                                                 }
  88                                         }
  89                                 }
  90
  91                                 if (owner == &player)
  92                                 {
  93                                         addPlayerScore(enemy->value);
  94                                 }
  95                         }
  96
  97                         for (int i = 0 ; i < 4 ; i++)
  98                         {
  99                                 (enemy->flags & ENT_EXPLODES) ? addSmokeAndFire(enemy, Math::rrand(-15, 5), Math::rrand(-15, 5), 2) : addBlood(enemy, Math::rrand(-5, 5), Math::rrand(-5, 5), 1);
 100                         }
 101
 102                         if (!(enemy->flags & ENT_STATIC))
 103                         {
 104                                 enemy->dx = Math::rrand(-5, 5);
 105                                 enemy->dy = Math::rrand(-5, 0);
 106                         }
 107                 }
 108         }
 109
 110         if ((player.immune) || (player.health <= -60) || (owner == &player) || (game.missionOver > 0))
 111         {
 112                 return;
 113         }
 114
 115         distX = (int)fabs(player.x + (player.width / 2) - x);
 116         distY = (int)fabs(player.y + (player.height / 2) - y);
 117
 118         distX *= distX;
 119         distY *= distY;
 120
 121         distance = (int)sqrt(distX + distY);
 122
 123         if (radius - distance >= 0)
 124                 throwAndDamageEntity(&player, 2, -3, 3, -8);
 125 }