gemrb/core/SpriteCover.cpp

   1 /* GemRB - Infinity Engine Emulator
   2  * Copyright (C) 2005 The GemRB Project
   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. See the
  12  * GNU General Public License for more details.
  13
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  17  *
  18  *
  19  */
  20
  21 #include "SpriteCover.h"
  22
  23 #include "Interface.h"
  24 #include "Video.h"
  25
  26 SpriteCover::SpriteCover()
  27 {
  28         pixels = 0;
  29 }
  30
  31 SpriteCover::~SpriteCover()
  32 {
  33         core->GetVideoDriver()->DestroySpriteCover(this);
  34 }
  35
  36 bool SpriteCover::Covers(int x, int y, int xpos, int ypos,
  37                                                  int width, int height) const
  38 {
  39         // if basepoint changed, no longer valid
  40         if (x != worldx || y != worldy) return false;
  41
  42         // top-left not covered
  43         if (xpos > XPos || ypos > YPos) return false;
  44
  45         // bottom-right not covered
  46         if (width-xpos > Width-XPos || height-ypos > Height-YPos) return false;
  47
  48         return true;
  49 }