Percent point mutator had a bug, fixed now

1 files changed, 5 insertions, 1 deletions

diff --git a/src/jcgp/backend/modules/mutator/PercentPointMutator.java b/src/jcgp/backend/modules/mutator/PercentPointMutator.java
index 015edf4..ed36f30 100644
--- a/src/jcgp/backend/modules/mutator/PercentPointMutator.java
+++ b/src/jcgp/backend/modules/mutator/PercentPointMutator.java
@@ -33,7 +33,11 @@ public class PercentPointMutator extends PointMutator {
 		mutationRate = new DoubleParameter(10, "Percent mutation", false, false) {
 			@Override
 			public void validate(Number newValue) {
-				genesMutated.set((int) ((newValue.intValue()) * (((((double) resources.nodes() + resources.outputs()))) / 100)));
+
+				int totalGenes = (resources.nodes() * (resources.arity() + 1)) + resources.outputs();
+				int mutations = (int) (newValue.doubleValue() * (double) (totalGenes / 100.0));
+				genesMutated.set(mutations);
+				
 				if (newValue.doubleValue() <= 0 || newValue.doubleValue() > 100) {
 					status = ParameterStatus.INVALID;
 					status.setDetails("Mutation rate must be > 0 and <= 100");