diff --git a/src/backend/Simulator.java b/src/backend/Simulator.java
index a8085d2..5107178 100644
--- a/src/backend/Simulator.java
+++ b/src/backend/Simulator.java
@@ -137,7 +137,11 @@ public class Simulator extends Thread {
 	 */
 	public void togglePause() {
 		// TODO : actually toggle the corresponding flag
-	}
+		pauseFlag=!pauseFlag;
+		}
+		
+		
+	
 	
 	/**
 	 * method called when clicking on a cell in the interface
@@ -263,6 +267,17 @@ public class Simulator extends Thread {
 	
 	public void setLoopDelay(int delay) {
 		//TODO : complete method
+//		this.loopDelay = delay;
+//		if (pauseFlag) {
+//	        return;
+//	    }
+//
+//	    try {
+//	        Thread.sleep(loopDelay);
+//	    } catch (InterruptedException e) {
+//	        Thread.currentThread().interrupt(); // Restore interrupted status.
+//	        System.err.println("Simulation step was interrupted.");
+//	    }
 	}
 	
 	public void toggleClickAction() {