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package jcgp.backend.population;
import java.util.ArrayList;
import java.util.Arrays;
import jcgp.backend.exceptions.InsufficientConnectionsException;
import jcgp.backend.function.Function;
public class Node extends Gene implements MutableElement, Connection {
private Function function;
private Connection[] connections;
private int column, row;
private Chromosome chromosome;
public Node(Chromosome chromosome, int row, int column, int arity) {
this.chromosome = chromosome;
this.column = column;
this.row = row;
}
@Override
public Object getValue() {
return function.run(Arrays.copyOfRange(connections, 0, function.getArity()));
}
public void setFunction(Function newFunction) {
function = newFunction;
}
@Override
public void setConnection(int index, Connection newConnection) {
if (newConnection instanceof Node) {
if (((Node) newConnection).getColumn() < column) {
connections[index] = newConnection;
chromosome.recomputeActiveNodes();
}
}
}
public void initialise(Function newFunction, Connection ... newConnections) throws InsufficientConnectionsException {
function = newFunction;
if (newConnections.length == chromosome.getResources().arity()) {
connections = newConnections;
} else {
throw new InsufficientConnectionsException();
}
}
public int getColumn() {
return column;
}
public int getRow() {
return row;
}
public Function getFunction() {
return function;
}
public Connection getConnection(int index) {
return connections[index];
}
public void getActive(ArrayList<Node> activeNodes) {
if (!activeNodes.contains(this)) {
activeNodes.add(this);
}
for (int i = 0; i < function.getArity(); i++) {
if (connections[i] instanceof Node) {
((Node) connections[i]).getActive(activeNodes);
}
}
}
@Override
public boolean copyOf(MutableElement m) {
if (this != m) {
if (m instanceof Node) {
Node n = (Node) m;
if (function == n.getFunction()) {
if (column == n.getColumn() && row == n.getRow()) {
for (int i = 0; i < connections.length; i++) {
if (connections[i] != n.getConnection(i)) {
if (connections[i] instanceof Input && n.getConnection(i) instanceof Input) {
if (((Input) connections[i]).getIndex() != ((Input) n.getConnection(i)).getIndex()) {
return false;
}
} else if (connections[i] instanceof Node && n.getConnection(i) instanceof Node) {
if (((Node) connections[i]).getRow() != ((Node) n.getConnection(i)).getRow() &&
((Node) connections[i]).getColumn() != ((Node) n.getConnection(i)).getColumn()) {
return false;
}
} else {
return false;
}
} else {
return false;
}
}
return true;
}
}
}
}
return false;
}
@Override
public String toString() {
return "Node [" + row + ", " + column + "]";
}
}
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