include/bomb.h

   1 /*
   2   Pacman Arena
   3   Copyright (C) 2003 Nuno Subtil
   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.  See the
  13   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 /* $Id: bomb.h,v 1.3 2003/11/27 22:11:57 nsubtil Exp $ */
  21 #ifndef _BOMB_H
  22 #define _BOMB_H
  23
  24 #define BOMB_STATE_NONE 0
  25 #define BOMB_STATE_COUNTDOWN 1
  26 #define BOMB_STATE_EXPLOSION 2
  27
  28
  29 /* constants */
  30 #define BOMB_FLAME_TIME 0.5
  31 #define BOMB_FLAME_TIME_SQ (BOMB_FLAME_TIME * BOMB_FLAME_TIME)
  32
  33 #define BOMB_PARTICLE_LIFE 0.2
  34 #define BOMB_PARTICLE_FADE 0.3
  35 #define BOMB_PARTICLE_RATE 300.0
  36 #define BOMB_PARTICLE_SIZE 1.0
  37 #define BOMB_PARTICLE_SPREAD 0.5
  38 #define BOMB_PARTICLE_SPEED 0.02
  39 #define BOMB_PARTICLE_SPEED_SPREAD 0.005
  40 #define BOMB_PARTICLE_GRAVITY 0.01
  41
  42 /*
  43   flames start out from the bomb position with a starting speed V0
  44   they suffer constant acceleration such that they stop in BOMB_FLAME_TIME seconds
  45   thus:
  46   V0 = 2 * radius / BOMB_FLAME_TIME
  47   a = -2 * radius / BOMB_FLAME_TIME^2
  48 */
  49
  50 struct bomb
  51 {
  52         int id;
  53
  54         int owner;
  55
  56         float position[3];
  57         float time;
  58         float countdown;
  59         float radius;
  60         int state;
  61
  62         struct particle_src *trail_left;
  63         struct particle_src *trail_right;
  64         struct particle_src *trail_up;
  65         struct particle_src *trail_down;
  66         struct particle_src *explosion;
  67
  68         struct object *model;
  69         int n_frames;
  70 };
  71
  72 void bomb_new(struct game *game, int player_no, float radius);
  73 void bomb_explode(struct game *game, int bomb_no);
  74 void bomb_update(struct game *game, int bomb_no, float delta);
  75 void bomb_remove(struct game *game, int bomb_no);
  76
  77 #endif