groupRoaming.cc

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00001 //
00002 // Copyright (C) 2006 Institut fuer Telematik, Universitaet Karlsruhe (TH)
00003 //
00004 // This program is free software; you can redistribute it and/or
00005 // modify it under the terms of the GNU General Public License
00006 // as published by the Free Software Foundation; either version 2
00007 // of the License, or (at your option) any later version.
00008 //
00009 // This program is distributed in the hope that it will be useful,
00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 // GNU General Public License for more details.
00013 //
00014 // You should have received a copy of the GNU General Public License
00015 // along with this program; if not, write to the Free Software
00016 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
00017 //
00018 
00024 #include "groupRoaming.h"
00025 
00026 groupRoaming::groupRoaming(double areaDimension, double speed, NeighborMap *Neighbors, GlobalCoordinator* coordinator, CollisionList* CollisionRect, int groupSize)
00027              :MovementGenerator(areaDimension, speed, Neighbors, coordinator, CollisionRect)
00028 {
00029     groupNr = coordinator->getPeerCount() / groupSize;
00030 
00031     if((coordinator->getPeerCount() % groupSize) == 0) {
00032         target.x = uniform(0.0, areaDimension);
00033         target.y = uniform(0.0, areaDimension);
00034         coordinator->increasePositionSize();
00035         coordinator->setPosition(groupNr, target);
00036     }
00037     else {
00038         target = coordinator->getPosition(groupNr);
00039     }
00040 
00041     coordinator->increasePeerCount();
00042 }
00043 
00044 
00045 void groupRoaming::move()
00046 {
00047     if(coordinator->getPosition(groupNr) != target) {
00048         target = coordinator->getPosition(groupNr);
00049     }
00050 
00051     flock();
00052     position += direction * speed;
00053     if(testBounds()) {
00054         position += direction * speed * 2;
00055         testBounds();
00056     }
00057 
00058     if(target.distanceSqr(position) < speed * speed) {
00059         target.x = uniform(0.0, areaDimension);
00060         target.y = uniform(0.0, areaDimension);
00061         coordinator->setPosition(groupNr, target);
00062     }
00063 }
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