src/CParticle.cpp

   1 /*
   2 Copyright © 2004 Parallel Realities
   3 Copyright © 2007-2008 Kővágó Zoltán <DirtY.iCE.hu@gmail.com>
   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 "CParticle.h"
  23
  24 Particle::Particle()
  25 {
  26         x = y = 0;
  27         dx = dy = 0;
  28         sprite = NULL;
  29         color = 0;
  30         next = NULL;
  31 }
  32
  33 void Particle::set(float x, float y, float dx, float dy, int color, int health, int flags)
  34 {
  35         this->x = x;
  36         this->y = y;
  37         this->dx = dx;
  38         this->dy = dy;
  39         this->color = color;
  40         this->health = health;
  41         this->flags = flags;
  42 }
  43
  44 void Particle::setSprite(Sprite *sprite)
  45 {
  46         if (sprite == NULL)
  47                 return;
  48
  49         this->sprite = sprite;
  50
  51         currentFrame = rand() % (sprite->maxFrames + 1);
  52         currentTime = 1;
  53 }
  54
  55 SDL_Surface *Particle::getFrame()
  56 {
  57         currentTime--;
  58
  59         if (currentTime == 0)
  60         {
  61                 currentFrame++;
  62                 sprite->getNextFrame(&currentFrame, &currentTime);
  63         }
  64
  65         return sprite->image[currentFrame];
  66 }
  67
  68 void Particle::move()
  69 {
  70         x += dx;
  71         y += dy;
  72 }