/*
* Copyright (c) 2005-2010 KOM – Multimedia Communications Lab
*
* This file is part of PeerfactSim.KOM.
*
* PeerfactSim.KOM is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* PeerfactSim.KOM is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with PeerfactSim.KOM. If not, see .
*
*/
package de.tud.kom.p2psim.impl.topology.movement;
import java.util.Set;
import de.tud.kom.p2psim.api.topology.movement.MovementSupported;
import de.tud.kom.p2psim.api.topology.movement.SimLocationActuator;
import de.tud.kom.p2psim.impl.topology.util.PositionVector;
/**
* The Movement Supported Components move to one Position. It is possible to set
* the speed for every movement.
* The method setTimeBetweenMoveOperations must be called, to start the periodic
* operation!
*
* @author Christoph Muenker
* @version 1.0, 21.11.2012
*/
public class TargetMovement extends AbstractMovementModel {
private double x = 0;
private double y = 0;
private double distance;
public TargetMovement() {
super();
}
@Override
public void move() {
Set comps = getComponents();
for (SimLocationActuator comp : comps) {
PositionVector pos = comp.getRealPosition();
if (Math.round(pos.getX()) == x && Math.round(pos.getY()) == y) {
continue;
}
PositionVector rVec = new PositionVector(x, y);
rVec = rVec.minus(pos);
double length = rVec.distanceTo(new PositionVector(0, 0));
PositionVector vec;
if (length > distance) {
vec = new PositionVector(rVec.getX() / length * distance,
rVec.getY() / length * distance);
} else {
vec = rVec;
}
updatePosition(comp, pos.plus(vec));
}
}
public void setX(double x) {
this.x = x;
}
public void setY(double y) {
this.y = y;
}
public void setDistancePerMovement(double distance) {
this.distance = Math.abs(distance);
}
}