src/common/landscapemap/TargetGroupsGroupEntry.cpp

   1 ////////////////////////////////////////////////////////////////////////////////
   2 //    Scorched3D (c) 2000-2009
   3 //
   4 //    This file is part of Scorched3D.
   5 //
   6 //    Scorched3D is free software; you can redistribute it and/or modify
   7 //    it under the terms of the GNU General Public License as published by
   8 //    the Free Software Foundation; either version 2 of the License, or
   9 //    (at your option) any later version.
  10 //
  11 //    Scorched3D is distributed in the hope that it will be useful,
  12 //    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //    GNU General Public License for more details.
  15 //
  16 //    You should have received a copy of the GNU General Public License
  17 //    along with Scorched3D; if not, write to the Free Software
  18 //    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 ////////////////////////////////////////////////////////////////////////////////
  20
  21 #include <landscapemap/TargetGroupsGroupEntry.h>
  22 #include <landscapemap/HeightMap.h>
  23 #include <common/Defines.h>
  24 #include <common/Vector.h>
  25
  26 TargetGroupsGroupEntry::TargetGroupsGroupEntry(
  27         const char *name, HeightMap &map) :
  28         TargetGroupsSetEntry(name),
  29         distance_(0)
  30 {
  31         mapWidthMult_ = 4;
  32         mapHeightMult_ = 4;
  33         mapWidth_ = map.getMapWidth() / mapWidthMult_;
  34         mapHeight_ = map.getMapHeight() / mapHeightMult_;
  35
  36         distance_ = new float[mapWidth_ * mapHeight_];
  37         for (int a=0; a<mapWidth_; a++)
  38         {
  39                 for (int b=0; b<mapHeight_; b++)
  40                 {
  41                         distance_[a + b * mapWidth_] = 255.0f;
  42                 }
  43         }
  44 }
  45
  46 TargetGroupsGroupEntry::~TargetGroupsGroupEntry()
  47 {
  48         delete [] distance_;
  49 }
  50
  51 float TargetGroupsGroupEntry::getDistance(int x, int y)
  52 {
  53         x /= mapWidthMult_;
  54         y /= mapHeightMult_;
  55
  56         if (x >=0 && x < mapWidth_ && y >=0 && y < mapHeight_)
  57         {
  58                 return distance_[x + y * mapWidth_];
  59         }
  60         return 255.0f;
  61 }
  62
  63 void TargetGroupsGroupEntry::addObject(TargetGroup *object, bool thin)
  64 {
  65         TargetGroupsSetEntry::addObject(object, thin);
  66
  67         static unsigned int objectCount = 0;
  68         if (thin && objectCount++ % 3 != 0) return;
  69
  70         int x = object->getPosition()[0].asInt();
  71         int y = object->getPosition()[1].asInt();
  72
  73         x /= mapWidthMult_;
  74         y /= mapHeightMult_;
  75
  76         if (x >=0 && x < mapWidth_ && y >=0 && y < mapHeight_)
  77         {
  78                 Vector posA(x, y, 0);
  79                 for (int a=0; a<mapWidth_; a++)
  80                 {
  81                         for (int b=0; b<mapHeight_; b++)
  82                         {
  83                                 Vector posB(a, b, 0);
  84                                 posB -= posA;
  85                                 float d = posB.Magnitude();
  86                                 distance_[a + b * mapWidth_] = MIN(distance_[a + b * mapWidth_], d);
  87                         }
  88                 }
  89         }
  90 }
  91
  92 bool TargetGroupsGroupEntry::removeObject(TargetGroup *object)
  93 {
  94         int x = object->getPosition()[0].asInt();
  95         int y = object->getPosition()[1].asInt();
  96
  97         x /= mapWidthMult_;
  98         y /= mapHeightMult_;
  99         if (x >=0 && x < mapWidth_ && y >=0 && y < mapHeight_)
 100         {
 101                 distance_[x + y * mapWidth_] += 2.0f;
 102         }
 103
 104         return TargetGroupsSetEntry::removeObject(object);
 105 }