Fixed AP Generator for 2 points

src/de/tud/kom/p2psim/impl/topology/movement/modularosm/attraction/TwoPointFixedAttractionGenerator.java

+/*
+ * 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package de.tud.kom.p2psim.impl.topology.movement.modularosm.attraction;
+
+import java.util.List;
+import de.tud.kom.p2psim.api.topology.Topology;
+import de.tud.kom.p2psim.impl.topology.util.PositionVector;
+import de.tudarmstadt.maki.simonstrator.api.Binder;
+import de.tudarmstadt.maki.simonstrator.api.component.sensor.location.AttractionPoint;
+
+/**
+ * Implementation of the interface {@link AttractionGenerator}.
+ * 
+ * Generates the given number of {@link AttractionPoint}s and sets the
+ * position randomly within the world dimensions.
+ * 
+ * @author  Julian Zobel
+ * @version 1.0, Nov 2018
+ */
+public class TwoPointFixedAttractionGenerator implements IAttractionGenerator {
+
+	private PositionVector worldDimension;
+	
+	public TwoPointFixedAttractionGenerator() {
+		
+		this.worldDimension = Binder.getComponentOrNull(Topology.class)
+				.getWorldDimensions();
+				
+		createAttractionPoints();
+	}
+
+	@Override
+	public List<AttractionPoint> getAttractionPoints() {
+		if(attractionPoints.isEmpty())
+			createAttractionPoints();
+		
+		return attractionPoints;
+	}
+	
+	private void createAttractionPoints() {
+		
+		double x = worldDimension.getX();
+		double y = worldDimension.getY();
+		
+		PositionVector p1 = new PositionVector(0 + 0.1 * x, y/2);		
+		AttractionPoint ap1 = new AttractionPointImpl("AP1", p1);
+		attractionPoints.add(ap1);
+		
+		PositionVector p2 = new PositionVector(0.9 * x, y/2);		
+		AttractionPoint ap2 = new AttractionPointImpl("AP2", p2);
+		attractionPoints.add(ap2);
+	}
+
+	
+}