praktikum-holons/src/psoAlgoCode/Particle.java

package psoAlgoCode;

import java.util.Vector;

public class Particle {
	//Number of dimensions of the particle
	private int dim;
	//Value for the local best -> best value for this particle so far
	private double local_best;
	//Current value of the particle -> value in this iteration
	private double actual_value;
	
	//Each particle possesses a position and a velocity in every dimension
	private Coordinate<Vector<Object>> posAdvanced;
	private Coordinate<Vector<Object>> velAdvanced;
	//The corresponding position for the local best value
	private Coordinate<Vector<Object>> localBestPosAdv;

	/**
	 * Create a particle
	 * @param dimensions number of dimensions for this particle
	 */
	public Particle(int dimensions) {
		this.dim = dimensions;
		posAdvanced = new Coordinate<Vector<Object>>();
		velAdvanced = new Coordinate<Vector<Object>>();
		local_best = Double.POSITIVE_INFINITY;
		actual_value = Double.POSITIVE_INFINITY;
	}

	// Getters
	public int getDimensions() {
		return dim;
	}

	public Coordinate<Vector<Object>> getPositionAdv() {
		return posAdvanced;
	}

	public Coordinate<Vector<Object>> getVelocityAdv() {
		return velAdvanced;
	}

	public Coordinate<Vector<Object>> getBestLocalPosAdv() {
		return localBestPosAdv;
	}

	public double getLocalBestValue() {
		return local_best;
	}

	public double getActualValue() {
		return actual_value;
	}

	// Setters
	public void setDimensions(int dim) {
		this.dim = dim;
	}

	public void setPositionAdv(Coordinate<Vector<Object>> new_pos) {
		this.posAdvanced = new_pos;
	}

	public void setVelocityAdv(Coordinate<Vector<Object>> new_vel) {
		this.velAdvanced = new_vel;
	}

	public void setActualValue(double v) {
		this.actual_value = v;
	}

	// Update Functions

	public void updateLocalBest() {
		if (actual_value < local_best) {
			this.local_best = this.actual_value;
			this.localBestPosAdv = this.posAdvanced;
		}
	}
}