Refactoring resources for (hopefully) the last time

27 files changed, 167 insertions, 156 deletions

diff --git a/src/jcgp/JCGP.java b/src/jcgp/JCGP.java
index a19e085..ee42792 100644
--- a/src/jcgp/JCGP.java
+++ b/src/jcgp/JCGP.java
@@ -2,9 +2,9 @@ package jcgp;
 
 import java.util.ArrayList;
 
-import jcgp.backend.modules.ea.EvolutionaryAlgorithm;
-import jcgp.backend.modules.ea.MuPlusLambda;
-import jcgp.backend.modules.ea.TournamentSelection;
+import jcgp.backend.modules.es.EvolutionaryStrategy;
+import jcgp.backend.modules.es.MuPlusLambda;
+import jcgp.backend.modules.es.TournamentSelection;
 import jcgp.backend.modules.fitness.DigitalCircuit;
 import jcgp.backend.modules.fitness.Problem;
 import jcgp.backend.modules.fitness.SymbolicRegression;
@@ -49,15 +49,15 @@ public class JCGP {
 	private Mutator mutator;
 	
 	// evolutionary algorithms
-	private EvolutionaryAlgorithm[] evolutionaryAlgorithms = new EvolutionaryAlgorithm[] {
+	private EvolutionaryStrategy[] evolutionaryStrategies = new EvolutionaryStrategy[] {
 			new MuPlusLambda(resources),
 			new TournamentSelection()};
-	private EvolutionaryAlgorithm evolutionaryAlgorithm;
+	private EvolutionaryStrategy evolutionaryStrategy;
 	
 	// problem types
 	private Problem[] problems = new Problem[] {
-			new SymbolicRegression(),
-			new DigitalCircuit() };
+			new SymbolicRegression(resources),
+			new DigitalCircuit(resources) };
 	private Problem problem;
 
 	/*
@@ -67,7 +67,7 @@ public class JCGP {
 	private boolean finished = false;
 	
 	public JCGP() {
-		setEvolutionaryAlgorithm(0);
+		setEvolutionaryStrategy(0);
 		setMutator(0);
 		setProblem(0);
 		
@@ -111,16 +111,16 @@ public class JCGP {
 	/**
 	 * @return the evolutionaryAlgorithms
 	 */
-	public EvolutionaryAlgorithm[] getEvolutionaryAlgorithms() {
-		return evolutionaryAlgorithms;
+	public EvolutionaryStrategy[] getEvolutionaryStrategies() {
+		return evolutionaryStrategies;
 	}
 
 
 	/**
 	 * @return the evolutionaryAlgorithm
 	 */
-	public EvolutionaryAlgorithm getEvolutionaryAlgorithm() {
-		return evolutionaryAlgorithm;
+	public EvolutionaryStrategy getEvolutionaryStrategy() {
+		return evolutionaryStrategy;
 	}
 
 
@@ -149,10 +149,10 @@ public class JCGP {
 
 
 	/**
-	 * @param evolutionaryAlgorithm the evolutionaryAlgorithm to set
+	 * @param evolutionaryStrategy the evolutionaryAlgorithm to set
 	 */
-	public void setEvolutionaryAlgorithm(int index) {		
-		this.evolutionaryAlgorithm = evolutionaryAlgorithms[index];
+	public void setEvolutionaryStrategy(int index) {		
+		this.evolutionaryStrategy = evolutionaryStrategies[index];
 	}
 
 
@@ -171,9 +171,9 @@ public class JCGP {
 
 			if (resources.getInt("currentGen") < resources.getInt("generations")) {
 				// we still have generations left to go
-				if (problem.isPerfectSolution(population.getChromosome(evolutionaryAlgorithm.getFittestChromosome()))) {
+				if (problem.isPerfectSolution(population.getChromosome(evolutionaryStrategy.getFittestChromosome()))) {
 					// solution has been found, start next run
-					resources.println("Solution found on generation " + resources.getInt("currentGen") + ", chromosome: " + evolutionaryAlgorithm.getFittestChromosome());
+					resources.println("[CGP] Solution found on generation " + resources.getInt("currentGen") + ", chromosome: " + evolutionaryStrategy.getFittestChromosome());
 					
 					if (resources.getInt("currentRun") < resources.getInt("runs")) {
 						// there are still runs left
@@ -191,9 +191,9 @@ public class JCGP {
 				}
 			} else {
 				// the run has ended, check if any more runs must be done
-				resources.println("Solution not found, highest fitness achieved was "
-						+ population.getChromosome(evolutionaryAlgorithm.getFittestChromosome()).getFitness()
-						+ " by chromosome " + evolutionaryAlgorithm.getFittestChromosome());
+				resources.println("[CGP] Solution not found, highest fitness achieved was "
+						+ population.getChromosome(evolutionaryStrategy.getFittestChromosome()).getFitness()
+						+ " by chromosome " + evolutionaryStrategy.getFittestChromosome());
 
 				if (resources.getInt("currentRun") < resources.getInt("runs")) {
 					// the run has ended but there are still runs left
@@ -209,14 +209,14 @@ public class JCGP {
 			}
 		}
 
-		evolutionaryAlgorithm.evolve(population, mutator, (Resources) resources);
+		evolutionaryStrategy.evolve(population, mutator, (Resources) resources);
 		
 	}
 	
 	private void report() {
 		if (resources.getInt("report") > 0) {
 			if (resources.getInt("currentGen") % resources.getInt("report") == 0) {
-				resources.println("Generation: " + resources.getInt("currentGen") + ", fitness: " + population.getChromosome(evolutionaryAlgorithm.getFittestChromosome()).getFitness());
+				resources.println("[CGP] Generation: " + resources.getInt("currentGen") + ", fitness: " + population.getChromosome(evolutionaryStrategy.getFittestChromosome()).getFitness());
 			}
 		}
 	}
@@ -239,7 +239,7 @@ public class JCGP {
 		resources.set("currentGen", 1);
 		resources.set("currentRun", 1);
 		resources.println("-----------------------------");
-		resources.println("New experiment");
+		resources.println("New experiment: " + problem.toString());
 	}
 
 	public boolean isFinished() {
diff --git a/src/jcgp/backend/modules/Module.java b/src/jcgp/backend/modules/Module.java
index f2b91b0..8a95737 100644
--- a/src/jcgp/backend/modules/Module.java
+++ b/src/jcgp/backend/modules/Module.java
@@ -4,6 +4,6 @@ import jcgp.backend.resources.parameters.Parameter;
 
 public interface Module {
 	
-	public Parameter[] getLocalParameters();
+	public abstract Parameter[] getLocalParameters();
 	
 }
diff --git a/src/jcgp/backend/modules/ea/EvolutionaryAlgorithm.java b/src/jcgp/backend/modules/es/EvolutionaryStrategy.java
index 3aca104..1117e99 100644
--- a/src/jcgp/backend/modules/ea/EvolutionaryAlgorithm.java
+++ b/src/jcgp/backend/modules/es/EvolutionaryStrategy.java
@@ -1,13 +1,13 @@
-package jcgp.backend.modules.ea;
+package jcgp.backend.modules.es;
 
 import jcgp.backend.modules.Module;
 import jcgp.backend.modules.mutator.Mutator;
 import jcgp.backend.population.Population;
 import jcgp.backend.resources.Resources;
 
-public interface EvolutionaryAlgorithm extends Module {
+public interface EvolutionaryStrategy extends Module {
 
-	public abstract void evolve(Population population, Mutator mutator, Resources parameters);
+	public abstract void evolve(Population population, Mutator mutator, Resources resources);
 
 	public abstract int getFittestChromosome();
 
diff --git a/src/jcgp/backend/modules/ea/MuPlusLambda.java b/src/jcgp/backend/modules/es/MuPlusLambda.java
index 0d16111..53fb932 100644
--- a/src/jcgp/backend/modules/ea/MuPlusLambda.java
+++ b/src/jcgp/backend/modules/es/MuPlusLambda.java
@@ -1,4 +1,4 @@
-package jcgp.backend.modules.ea;
+package jcgp.backend.modules.es;
 
 import jcgp.backend.modules.mutator.Mutator;
 import jcgp.backend.population.Population;
@@ -15,7 +15,7 @@ import jcgp.backend.resources.parameters.ParameterStatus;
  * @author Eduardo Pedroni
  *
  */
-public class MuPlusLambda implements EvolutionaryAlgorithm {
+public class MuPlusLambda implements EvolutionaryStrategy {
 	
 	private int fittestChromosome;
 	
@@ -58,22 +58,27 @@ public class MuPlusLambda implements EvolutionaryAlgorithm {
 			}
 		};
 	}
-
+	
 	@Override
 	public void evolve(Population population, Mutator mutator, Resources resources) {
 		// select fittest chromosomes
 		fittestChromosome = 0;
 		
-		for (int i = 1; i < resources.getInt("popSize"); i++) {
+		if (report.get()) resources.reportln("[ES] Selecting fittest chromosome...");
+		for (int i = 0; i < resources.getInt("popSize"); i++) {
+			if (report.get()) resources.reportln("[ES] Chromosome " + i + ", fitness: " + population.getChromosome(i).getFitness());
 			if (population.getChromosome(i).getFitness() >= population.getChromosome(fittestChromosome).getFitness()) {
 				fittestChromosome = i;
 			}
 		}
+		if (report.get()) resources.reportln("[ES] Selected chromosome: " + fittestChromosome);
 		
 		// create copies of fittest chromosome, mutate them
 		for (int i = 0; i < resources.getInt("popSize"); i++) {
 			if (i != fittestChromosome) {
+				if (report.get()) resources.reportln("[ES] Copying fittest chromosome to population position " + i);
 				population.copyChromosome(fittestChromosome, i);
+				if (report.get()) resources.reportln("[ES] Mutating copied chromosome");
 				mutator.mutate(population.getChromosome(i), resources);
 			}
 		}
diff --git a/src/jcgp/backend/modules/ea/TournamentSelection.java b/src/jcgp/backend/modules/es/TournamentSelection.java
index baf6704..3954de8 100644
--- a/src/jcgp/backend/modules/ea/TournamentSelection.java
+++ b/src/jcgp/backend/modules/es/TournamentSelection.java
@@ -1,4 +1,4 @@
-package jcgp.backend.modules.ea;
+package jcgp.backend.modules.es;
 
 import java.util.HashMap;
 
@@ -8,7 +8,7 @@ import jcgp.backend.resources.Resources;
 import jcgp.backend.resources.parameters.IntegerParameter;
 import jcgp.backend.resources.parameters.Parameter;
 
-public class TournamentSelection implements EvolutionaryAlgorithm {
+public class TournamentSelection implements EvolutionaryStrategy {
 	
 	private int fittestChromosome;
 	
diff --git a/src/jcgp/backend/modules/fitness/DigitalCircuit.java b/src/jcgp/backend/modules/fitness/DigitalCircuit.java
index b01bdc5..8677d5f 100644
--- a/src/jcgp/backend/modules/fitness/DigitalCircuit.java
+++ b/src/jcgp/backend/modules/fitness/DigitalCircuit.java
@@ -1,11 +1,12 @@
 package jcgp.backend.modules.fitness;
 
 import jcgp.backend.function.BitwiseLogic;
+import jcgp.backend.resources.Resources;
 
 public class DigitalCircuit extends TestCaseProblem<Integer> {
 
-	public DigitalCircuit() {
-		super();
+	public DigitalCircuit(Resources resources) {
+		super(resources);
 		functionSet = new BitwiseLogic();
 	}
 	
diff --git a/src/jcgp/backend/modules/fitness/SymbolicRegression.java b/src/jcgp/backend/modules/fitness/SymbolicRegression.java
index da2e69e..cb9d1a7 100644
--- a/src/jcgp/backend/modules/fitness/SymbolicRegression.java
+++ b/src/jcgp/backend/modules/fitness/SymbolicRegression.java
@@ -1,11 +1,12 @@
 package jcgp.backend.modules.fitness;
 
 import jcgp.backend.function.IntegerArithmetic;
+import jcgp.backend.resources.Resources;
 
 public class SymbolicRegression extends TestCaseProblem<Integer> {	
 	
-	public SymbolicRegression() {
-		super();
+	public SymbolicRegression(Resources resources) {
+		super(resources);
 		functionSet = new IntegerArithmetic();
 	}
 	
diff --git a/src/jcgp/backend/modules/fitness/TestCaseProblem.java b/src/jcgp/backend/modules/fitness/TestCaseProblem.java
index 7753e26..4259285 100644
--- a/src/jcgp/backend/modules/fitness/TestCaseProblem.java
+++ b/src/jcgp/backend/modules/fitness/TestCaseProblem.java
@@ -51,7 +51,9 @@ public abstract class TestCaseProblem<U> extends Problem {
 	private ArrayList<TestCase<U>> testCases;
 	private IntegerParameter maxFitness;
 	
-	public TestCaseProblem() {
+	public TestCaseProblem(Resources resources) {
+		super();
+		
 		maxFitness = new IntegerParameter(0, "Max fitness", true, false) {
 			@Override
 			public void validate(int newValue) {
diff --git a/src/jcgp/backend/modules/mutator/Mutator.java b/src/jcgp/backend/modules/mutator/Mutator.java
index ffdd35c..1d5b99a 100644
--- a/src/jcgp/backend/modules/mutator/Mutator.java
+++ b/src/jcgp/backend/modules/mutator/Mutator.java
@@ -6,6 +6,6 @@ import jcgp.backend.resources.Resources;
 
 public interface Mutator extends Module {
 
-	void mutate(Chromosome chromosome, Resources parameters);
+	void mutate(Chromosome chromosome, Resources resources);
 	
 }
diff --git a/src/jcgp/backend/modules/mutator/PointMutator.java b/src/jcgp/backend/modules/mutator/PointMutator.java
index 54d5f3d..1f38cfe 100644
--- a/src/jcgp/backend/modules/mutator/PointMutator.java
+++ b/src/jcgp/backend/modules/mutator/PointMutator.java
@@ -1,11 +1,11 @@
 package jcgp.backend.modules.mutator;
 
-import jcgp.backend.function.Function;
 import jcgp.backend.population.Chromosome;
 import jcgp.backend.population.MutableElement;
 import jcgp.backend.population.Node;
 import jcgp.backend.population.Output;
 import jcgp.backend.resources.Resources;
+import jcgp.backend.resources.parameters.BooleanParameter;
 import jcgp.backend.resources.parameters.DoubleParameter;
 import jcgp.backend.resources.parameters.Parameter;
 import jcgp.backend.resources.parameters.ParameterStatus;
@@ -13,6 +13,7 @@ import jcgp.backend.resources.parameters.ParameterStatus;
 public class PointMutator implements Mutator {
 	
 	private DoubleParameter mutationRate;
+	private BooleanParameter report;
 
 	public PointMutator(final Resources resources) {
 		mutationRate = new DoubleParameter(50, "Percent mutation", false, false) {
@@ -29,23 +30,44 @@ public class PointMutator implements Mutator {
 				}
 			}
 		};
+		
+		report = new BooleanParameter(false, "Report") {
+			@Override
+			public void validate(boolean newValue) {
+				// blank
+			}
+		};
 	}
 
 	@Override
 	public void mutate(Chromosome chromosome, Resources resources) {
 		int mutations = (int) ((mutationRate.get()) * ((((resources.getDouble("nodes")) + (resources.getDouble("outputs")))) / 100));
+		if (report.get()) resources.reportln("[Mutator] Number of mutations to be performed: " + mutations);
 		for (int i = 0; i < mutations; i++) {
 			MutableElement m = chromosome.getRandomMutableElement();
+			if (report.get()) resources.report("[Mutator] Mutation " + i + " selected " + m.toString() + ", ");
 			
 			if (m instanceof Output) {
+				if (report.get()) resources.report("changed source from " + ((Output) m).getSource().toString() + " ");
+				
 				m.setConnection(0, chromosome.getRandomConnection());
+				
+				if (report.get()) resources.reportln("to " + ((Output) m).getSource().toString());
 			} else if (m instanceof Node) {
 				int geneType = resources.getRandomInt(1 + resources.getInt("arity"));
 				if (geneType < 1) {
-					Function f = resources.getRandomFunction();
-					((Node) m).setFunction(f);
+					if (report.get()) resources.report("changed function from " + ((Node) m).getFunction().getName() + " ");
+					
+					((Node) m).setFunction(resources.getRandomFunction());
+					
+					if (report.get()) resources.reportln("to " + ((Node) m).getFunction().getName());
 				} else {
-					m.setConnection(resources.getRandomInt(resources.getInt("arity")), chromosome.getRandomConnection(((Node) m).getColumn()));
+					int connection = resources.getRandomInt(resources.getInt("arity"));
+					if (report.get()) resources.report("changed connection " + connection + " from " + ((Node) m).getConnection(connection) + " ");
+					
+					m.setConnection(connection, chromosome.getRandomConnection(((Node) m).getColumn()));
+					
+					if (report.get()) resources.reportln("to " + ((Node) m).getConnection(connection));
 				}
 			}
 		}
@@ -53,7 +75,7 @@ public class PointMutator implements Mutator {
 
 	@Override
 	public Parameter[] getLocalParameters() {
-		return new Parameter[] {mutationRate};
+		return new Parameter[] {mutationRate, report};
 	}
 
 	@Override
diff --git a/src/jcgp/backend/population/Chromosome.java b/src/jcgp/backend/population/Chromosome.java
index d438375..bbada14 100644
--- a/src/jcgp/backend/population/Chromosome.java
+++ b/src/jcgp/backend/population/Chromosome.java
@@ -318,7 +318,7 @@ public class Chromosome {
 			for (int c = 0; c < (resources.getInt("columns")); c++) {
 				System.out.print("N: (" + r + ", " + c + ") ");
 				for (int i = 0; i < arity; i++) {
-					System.out.print("C" + i + ": (" + nodes[r][c].getConnection(i).getDescription() + ") ");
+					System.out.print("C" + i + ": (" + nodes[r][c].getConnection(i).toString() + ") ");
 				}
 				System.out.print("F: " + nodes[r][c].getFunction().getName() + "\t");
 			}
@@ -326,7 +326,7 @@ public class Chromosome {
 		}
 		
 		for (int o = 0; o < (resources.getInt("outputs")); o++) {
-			System.out.print("o: " + o + " (" + outputs[o].getSource().getDescription() + ")\t");
+			System.out.print("o: " + o + " (" + outputs[o].getSource().toString() + ")\t");
 		}
 	}
 	
diff --git a/src/jcgp/backend/population/Connection.java b/src/jcgp/backend/population/Connection.java
index ea4f10f..cd0f5ce 100644
--- a/src/jcgp/backend/population/Connection.java
+++ b/src/jcgp/backend/population/Connection.java
@@ -3,7 +3,5 @@ package jcgp.backend.population;
 public interface Connection {
 
 	public Object getValue();
-	
-	public String getDescription();
 
 }
diff --git a/src/jcgp/backend/population/Input.java b/src/jcgp/backend/population/Input.java
index 83fba07..2661f8c 100644
--- a/src/jcgp/backend/population/Input.java
+++ b/src/jcgp/backend/population/Input.java
@@ -23,7 +23,7 @@ public class Input extends Gene implements Connection {
 	}
 
 	@Override
-	public String getDescription() {
-		return "i: " + index;
+	public String toString() {
+		return "Input " + index;
 	}
 }
diff --git a/src/jcgp/backend/population/Node.java b/src/jcgp/backend/population/Node.java
index 6960ded..87a2f99 100644
--- a/src/jcgp/backend/population/Node.java
+++ b/src/jcgp/backend/population/Node.java
@@ -106,7 +106,7 @@ public class Node extends Gene implements MutableElement, Connection {
 	}
 
 	@Override
-	public String getDescription() {
-		return "n: " + row + ", " + column;
+	public String toString() {
+		return "Node [" + row + ", " + column + "]";
 	}
 }
diff --git a/src/jcgp/backend/population/Output.java b/src/jcgp/backend/population/Output.java
index aa94ab6..d876951 100644
--- a/src/jcgp/backend/population/Output.java
+++ b/src/jcgp/backend/population/Output.java
@@ -11,7 +11,6 @@ public class Output extends Gene implements MutableElement {
 	public Output(Chromosome chromosome, int index) {
 		this.chromosome = chromosome;
 		this.index = index;
-		//this.source = new SimpleObjectProperty<Connection>();
 	}
 
 	public Object calculate() {
@@ -32,10 +31,6 @@ public class Output extends Gene implements MutableElement {
 	public Connection getSource() {
 		return source;
 	}
-	
-//	public SimpleObjectProperty<Connection> sourceProperty() {
-//		return source;
-//	}
 
 	public void getActiveNodes(ArrayList<Node> activeNodes) {
 		if (source instanceof Node) {
@@ -66,4 +61,9 @@ public class Output extends Gene implements MutableElement {
 		}
 		return false;
 	}
+	
+	@Override
+	public String toString() {
+		return "Output " + index;
+	}
 }
diff --git a/src/jcgp/backend/resources/ModifiableResources.java b/src/jcgp/backend/resources/ModifiableResources.java
index 90c2f03..a221f73 100644
--- a/src/jcgp/backend/resources/ModifiableResources.java
+++ b/src/jcgp/backend/resources/ModifiableResources.java
@@ -40,4 +40,21 @@ public class ModifiableResources extends Resources {
 		this.console = console;
 	}
 	
+	/*
+	 * Console functionality
+	 */
+	public void println(String s) {
+		System.out.println(s);
+		if (console != null) {
+			console.println(s);
+		}
+	}
+	
+	public void print(String s) {
+		System.out.print(s);
+		if (console != null) {
+			console.print(s);
+		}
+	}
+	
 }
diff --git a/src/jcgp/backend/resources/Resources.java b/src/jcgp/backend/resources/Resources.java
index d1f396a..13e0c51 100644
--- a/src/jcgp/backend/resources/Resources.java
+++ b/src/jcgp/backend/resources/Resources.java
@@ -266,31 +266,29 @@ public class Resources {
 		return functionSet;
 	}
 	
-//	/*
-//	 * Test cases
-//	 */
-//	public TestCase getTestCase(int index) {
-//		return testCases[index];
-//	}
-//
-//	public int getTestCaseCount() {
-//		return testCases.length;
-//	}
-
 	/*
 	 * Console functionality
+	 * These are affected by parameter report
 	 */
-	public void println(String s) {
-		System.out.println(s);
-		if (console != null) {
-			console.println(s);
+	public void reportln(String s) {
+		if (getInt("report") > 0) {
+			if (getInt("currentGen") % getInt("report") == 0) {
+				System.out.println(s);
+				if (console != null) {
+					console.println(s);
+				}
+			}
 		}
 	}
 	
-	public void print(String s) {
-		System.out.print(s);
-		if (console != null) {
-			console.print(s);
+	public void report(String s) {
+		if (getInt("report") > 0) {
+			if (getInt("currentGen") % getInt("report") == 0) {
+				System.out.print(s);
+				if (console != null) {
+					console.print(s);
+				}
+			}
 		}
 	}
 }
\ No newline at end of file
diff --git a/src/jcgp/backend/tests/NodeTests.java b/src/jcgp/backend/tests/NodeTests.java
index 2294816..e8fe02f 100644
--- a/src/jcgp/backend/tests/NodeTests.java
+++ b/src/jcgp/backend/tests/NodeTests.java
@@ -57,13 +57,6 @@ public class NodeTests {
 						// hardcode a value
 						return arg1;
 					}
-
-					@Override
-					public String getDescription() {
-						// blank
-						return null;
-					}
-
 				},
 				new Connection() {
 
@@ -72,13 +65,6 @@ public class NodeTests {
 						// hardcode a value
 						return arg2;
 					}
-
-					@Override
-					public String getDescription() {
-						// blank
-						return null;
-					}
-
 				}});
 	}
 
@@ -144,13 +130,6 @@ public class NodeTests {
 				// blank
 				return 0;
 			}
-
-			@Override
-			public String getDescription() {
-				// blank
-				return null;
-			}
-
 		};
 		conn1 = new Connection() {
 
@@ -159,13 +138,6 @@ public class NodeTests {
 				// blank
 				return 0;
 			}
-
-			@Override
-			public String getDescription() {
-				// blank
-				return null;
-			}
-
 		};
 		
 		Function function = new Function() {
@@ -201,12 +173,6 @@ public class NodeTests {
 				// blank
 				return 0;
 			}
-
-			@Override
-			public String getDescription() {
-				// blank
-				return null;
-			}
 		};
 		node.setConnection(resources.getRandomInt(resources.getInt("arity")), conn2);
 
diff --git a/src/jcgp/backend/tests/OutputTests.java b/src/jcgp/backend/tests/OutputTests.java
index b2bc7ec..afe44a7 100644
--- a/src/jcgp/backend/tests/OutputTests.java
+++ b/src/jcgp/backend/tests/OutputTests.java
@@ -52,12 +52,6 @@ public class OutputTests {
 				// test value
 				return outputValue;
 			}
-
-			@Override
-			public String getDescription() {
-				// blank
-				return null;
-			}
 		});
 
 		assertTrue("Incorrect evaluation.", ((Integer) output.calculate()) == outputValue);
@@ -73,12 +67,6 @@ public class OutputTests {
 				// blank
 				return 0;
 			}
-
-			@Override
-			public String getDescription() {
-				// blank
-				return null;
-			}
 		};
 		output.setConnection(0, newConn);
 
diff --git a/src/jcgp/gui/GUI.java b/src/jcgp/gui/GUI.java
index 8f28884..eaca077 100644
--- a/src/jcgp/gui/GUI.java
+++ b/src/jcgp/gui/GUI.java
@@ -174,14 +174,15 @@ public class GUI extends Application {
 			jcgp.reset();
 			populationPane.remakeTabs(jcgp.getPopulation(), jcgp.getResources());
 			settingsPane.revalidateParameters();
+			settingsPane.updateControls(false, jcgp.isFinished());
 			console.flush();
 		}
 	}
 	
 	private void runningMode(boolean value) {
 		populationPane.setDisable(value);
-		settingsPane.runningMode(value);
-		
+		settingsPane.updateControls(value, jcgp.isFinished());
+				
 		if (value) {
 			populationPane.unlockOutputs();
 			if (settingsPane.isResetRequired()) {
diff --git a/src/jcgp/gui/console/GUIConsole.java b/src/jcgp/gui/console/GUIConsole.java
index 694f1a5..55291aa 100644
--- a/src/jcgp/gui/console/GUIConsole.java
+++ b/src/jcgp/gui/console/GUIConsole.java
@@ -7,7 +7,7 @@ import jcgp.gui.GUI;
 
 public class GUIConsole extends AnchorPane implements Console {
 	
-	private TextArea textArea = new TextArea("Welcome to JCGP!");
+	private TextArea textArea = new TextArea("Welcome to JCGP!\n");
 	
 	private StringBuffer printBuffer = new StringBuffer();
 		
@@ -24,12 +24,11 @@ public class GUIConsole extends AnchorPane implements Console {
 		setPrefHeight(GUI.CONSOLE_HEIGHT);
 		
 		getChildren().add(textArea);
-		
 	}
 
 	@Override
 	public void println(String s) {
-		printBuffer.append("\n" + s);
+		printBuffer.append(s + "\n");
 	}
 
 	@Override
diff --git a/src/jcgp/gui/dragresize/HorizontalDragResize.java b/src/jcgp/gui/dragresize/HorizontalDragResize.java
index d580878..3acfd4a 100644
--- a/src/jcgp/gui/dragresize/HorizontalDragResize.java
+++ b/src/jcgp/gui/dragresize/HorizontalDragResize.java
@@ -10,7 +10,6 @@ import jcgp.gui.GUI;
  * 
  * http://andrewtill.blogspot.co.uk/2012/12/dragging-to-resize-javafx-region.html
  * 
- * @author eddy
  *
  */
 public class HorizontalDragResize {
diff --git a/src/jcgp/gui/dragresize/VerticalDragResize.java b/src/jcgp/gui/dragresize/VerticalDragResize.java
index 32a7526..8d79a2e 100644
--- a/src/jcgp/gui/dragresize/VerticalDragResize.java
+++ b/src/jcgp/gui/dragresize/VerticalDragResize.java
@@ -10,7 +10,6 @@ import jcgp.gui.GUI;
  * 
  * http://andrewtill.blogspot.co.uk/2012/12/dragging-to-resize-javafx-region.html
  * 
- * @author eddy
  *
  */
 public class VerticalDragResize {
diff --git a/src/jcgp/gui/population/ChromosomePane.java b/src/jcgp/gui/population/ChromosomePane.java
index cba58d2..841c18a 100644
--- a/src/jcgp/gui/population/ChromosomePane.java
+++ b/src/jcgp/gui/population/ChromosomePane.java
@@ -63,7 +63,6 @@ public class ChromosomePane extends ScrollPane {
 			}
 			content.getChildren().addAll(guiNodes[r]);
 		}
-		
 		// outputs
 		guiOutputs = new GUIOutput[resources.getInt("outputs")];
 		for (int i = 0; i < guiOutputs.length; i++) {
diff --git a/src/jcgp/gui/settings/SettingsPane.java b/src/jcgp/gui/settings/SettingsPane.java
index 5b23bdd..d7ffd79 100644
--- a/src/jcgp/gui/settings/SettingsPane.java
+++ b/src/jcgp/gui/settings/SettingsPane.java
@@ -17,7 +17,7 @@ import javafx.scene.text.Font;
 import javafx.scene.text.Text;
 import jcgp.JCGP;
 import jcgp.backend.function.FunctionSet;
-import jcgp.backend.modules.ea.EvolutionaryAlgorithm;
+import jcgp.backend.modules.es.EvolutionaryStrategy;
 import jcgp.backend.modules.fitness.Problem;
 import jcgp.backend.modules.mutator.Mutator;
 import jcgp.backend.resources.parameters.Parameter;
@@ -103,26 +103,26 @@ public class SettingsPane extends AnchorPane {
 	private void initialiseEAParameters(final JCGP cgp) {
 		eaPane = new VBox(2);
 		
-		Text header = new Text("Evolutionary Algorithm");
+		Text header = new Text("Evolutionary Strategy");
 		header.setFont(Font.font("Arial", 14));
 		header.setUnderline(true);
 		
-		final ComboBox<EvolutionaryAlgorithm> eaCBox = new ComboBox<EvolutionaryAlgorithm>();
-		eaCBox.getItems().addAll(cgp.getEvolutionaryAlgorithms());
-		eaCBox.getSelectionModel().select(cgp.getEvolutionaryAlgorithm());
+		final ComboBox<EvolutionaryStrategy> eaCBox = new ComboBox<EvolutionaryStrategy>();
+		eaCBox.getItems().addAll(cgp.getEvolutionaryStrategies());
+		eaCBox.getSelectionModel().select(cgp.getEvolutionaryStrategy());
 		eaCBox.prefWidthProperty().bind(mainContainer.widthProperty());
 		
 		final VBox eaParameters = new VBox();
 		eaParameters.setSpacing(2);
 		
-		if (cgp.getEvolutionaryAlgorithm().getLocalParameters() != null) {
-			refreshParameters(cgp.getEvolutionaryAlgorithm().getLocalParameters(), eaParameters);
+		if (cgp.getEvolutionaryStrategy().getLocalParameters() != null) {
+			refreshParameters(cgp.getEvolutionaryStrategy().getLocalParameters(), eaParameters);
 		}
 		
 		eaCBox.setOnAction(new EventHandler<ActionEvent>() {
 			@Override
 			public void handle(ActionEvent event) {
-				cgp.setEvolutionaryAlgorithm(eaCBox.getSelectionModel().getSelectedIndex());
+				cgp.setEvolutionaryStrategy(eaCBox.getSelectionModel().getSelectedIndex());
 				if (eaCBox.getSelectionModel().getSelectedItem().getLocalParameters() != null) {
 					refreshParameters(eaCBox.getSelectionModel().getSelectedItem().getLocalParameters(), eaParameters);
 				}
@@ -147,7 +147,7 @@ public class SettingsPane extends AnchorPane {
 		
 		final VBox mutatorParameters = new VBox();
 		mutatorParameters.setSpacing(2);
-		if (cgp.getEvolutionaryAlgorithm().getLocalParameters() != null) {
+		if (cgp.getEvolutionaryStrategy().getLocalParameters() != null) {
 			refreshParameters(cgp.getMutator().getLocalParameters(), mutatorParameters);
 		}
 		
@@ -168,7 +168,7 @@ public class SettingsPane extends AnchorPane {
 	private void initialiseProblemTypeParameters(final JCGP cgp, final GUI gui) {
 		problemPane= new VBox(2);
 		
-		Text header = new Text("Problem type");
+		Text header = new Text("Problem Type");
 		header.setFont(Font.font("Arial", 14));
 		header.setUnderline(true);
 		
@@ -205,6 +205,10 @@ public class SettingsPane extends AnchorPane {
 	}
 	
 	private void createControls(final JCGP cgp, final GUI gui) {
+		Text header = new Text("Experiment controls");
+		header.setFont(Font.font("Arial", 14));
+		header.setUnderline(true);
+		
 		final VBox controls = new VBox(2);
 		controls.setFillWidth(true);
 		
@@ -241,7 +245,7 @@ public class SettingsPane extends AnchorPane {
 		HBox.setHgrow(reset, Priority.ALWAYS);
 		reset.setMaxWidth(Double.MAX_VALUE);
 		
-		controls.getChildren().add(flowButtons);
+		controls.getChildren().addAll(header, flowButtons);
 		
 		mainContainer.getChildren().add(controls);	
 	}
@@ -255,7 +259,6 @@ public class SettingsPane extends AnchorPane {
 		vb.getChildren().clear();
 		for (int i = 0; i < newParameters.length; i++) {
 	        GUIParameter gp = GUIParameter.create(newParameters[i], this);
-	        
 	        parameters.add(gp);
         	vb.getChildren().add(gp);
 		}
@@ -289,17 +292,17 @@ public class SettingsPane extends AnchorPane {
 	
 
 	
-	public void runningMode(boolean value) {
-		baseParameterPane.setDisable(value);
-		eaPane.setDisable(value);
-		mutatorPane.setDisable(value);
-		problemPane.setDisable(value);
-		step.setDisable(value);
-		reset.setDisable(value);
-		
-		runPause.setText(value ? "Pause" : "Run");
-	}
-	
+//	public void runningMode(boolean value) {
+//		baseParameterPane.setDisable(value);
+//		eaPane.setDisable(value);
+//		mutatorPane.setDisable(value);
+//		problemPane.setDisable(value);
+//		step.setDisable(value);
+//		reset.setDisable(value);
+//		
+//		runPause.setText(value ? "Pause" : "Run");
+//	}
+//	
 	/**
 	 * 
 	 * @return true if the experiment needs to be reset, false otherwise.
@@ -335,6 +338,19 @@ public class SettingsPane extends AnchorPane {
 	public void applyParameters() {
 		for (GUIParameter parameter : parameters) {
 			parameter.applyValue();
-		}	
+		}
+	}
+
+	public void updateControls(boolean running, boolean finished) {
+		baseParameterPane.setDisable(running);
+		eaPane.setDisable(running);
+		mutatorPane.setDisable(running);
+		problemPane.setDisable(running);
+		
+		runPause.setText(running ? "Pause" : "Run");
+		runPause.setDisable(finished);
+		step.setDisable(running || finished);
+		reset.setDisable(running);
+		
 	}
 }
diff --git a/src/jcgp/gui/settings/parameters/GUIDoubleParameter.java b/src/jcgp/gui/settings/parameters/GUIDoubleParameter.java
index eecff2d..4a8e0e1 100644
--- a/src/jcgp/gui/settings/parameters/GUIDoubleParameter.java
+++ b/src/jcgp/gui/settings/parameters/GUIDoubleParameter.java
@@ -34,7 +34,7 @@ public class GUIDoubleParameter extends GUIParameter {
 		
 		name.wrappingWidthProperty().bind(widthProperty().divide(2));
 		
-		((TextField) valueControl).setEditable(!parameter.isMonitor());
+		((TextField) valueControl).setDisable(parameter.isMonitor());
 		
 		// bind if monitor, else set changelistener
 		if (parameter.isMonitor()) {
diff --git a/src/jcgp/gui/settings/parameters/GUIIntegerParameter.java b/src/jcgp/gui/settings/parameters/GUIIntegerParameter.java
index 9c84c6a..204e7a2 100644
--- a/src/jcgp/gui/settings/parameters/GUIIntegerParameter.java
+++ b/src/jcgp/gui/settings/parameters/GUIIntegerParameter.java
@@ -34,7 +34,7 @@ public class GUIIntegerParameter extends GUIParameter {
 		
 		name.wrappingWidthProperty().bind(widthProperty().divide(2));
 		
-		((TextField) valueControl).setEditable(!parameter.isMonitor());
+		((TextField) valueControl).setDisable(parameter.isMonitor());
 		
 		// bind if monitor, else set listeners
 		if (parameter.isMonitor()) {