diff --git a/src/backend/Simulator.java b/src/backend/Simulator.java
index ce3c01b..33618af 100644
--- a/src/backend/Simulator.java
+++ b/src/backend/Simulator.java
@@ -333,25 +333,27 @@ public class Simulator extends Thread {
 			System.out.println("empty rule file");
 			return;
 		}
+		//TODO : remove previous rule (=emptying lists)
 		
-		fieldSurviveValues.clear();
-		fieldBirthValues.clear();
 		
-		String[] surviveElements = lines.get(0).split(";");
-		for (int x = 0; x < surviveElements.length; x++) {
+		
+		String surviveLine = lines.get(0);
+		String birthLine = lines.get(1);
+		String[] surviveElements = surviveLine.split(";");
+		for(int x=0; x<surviveElements.length;x++) {
 			String elem = surviveElements[x];
 			int value = Integer.parseInt(elem);
-			fieldSurviveValues.add(value);
+			//TODO : add value to possible survive values
+			
 		}
-
-		String[] birthElements = lines.get(1).split(";");
-		for (int x = 0; x < birthElements.length; x++) {
+		String[] birthElements = birthLine.split(";");
+		for(int x=0; x<birthElements.length;x++) {
 			String elem = birthElements[x];
 			int value = Integer.parseInt(elem);
-			fieldBirthValues.add(value);
+			//TODO : add value to possible birth values
+			
 		}
 	}
-	//DONE
 	
 	public ArrayList<String> getAgentsSave() {
 		//TODO : Same idea as the other save method, but for agents