1 files changed, 19 insertions, 0 deletions
diff --git a/src/jcgp/backend/modules/problem/TestCaseProblem.java b/src/jcgp/backend/modules/problem/TestCaseProblem.java
index 69c078d..188e236 100644
--- a/src/jcgp/backend/modules/problem/TestCaseProblem.java
+++ b/src/jcgp/backend/modules/problem/TestCaseProblem.java
@@ -5,6 +5,7 @@ import java.io.File;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import jcgp.backend.parsers.TestCaseParser;
+import jcgp.backend.population.Population;
 import jcgp.backend.resources.ModifiableResources;
 import jcgp.backend.resources.Resources;
 
@@ -162,6 +163,24 @@ public abstract class TestCaseProblem<T> extends Problem {
 		// use standard test case parser for this
 		TestCaseParser.parse(file, this, resources);
 	}
+	
+	@Override
+	public int hasImprovement(Population population) {
+		for (int i = 0; i < getResources().populationSize(); i++) {
+			if (getFitnessOrientation() == BestFitness.HIGH) {
+				if (population.get(i).getFitness() > bestFitness.get()) {
+					bestFitness.set(population.get(i).getFitness());
+					return i;
+				}
+			} else {
+				if (population.get(i).getFitness() < bestFitness.get()) {
+					bestFitness.set(population.get(i).getFitness());
+					return i;
+				}
+			}
+		}
+		return -1;
+	}
 }