diff --git a/src/backend/Sheep.java b/src/backend/Sheep.java
index b62af02..3c0f302 100644
--- a/src/backend/Sheep.java
+++ b/src/backend/Sheep.java
@@ -29,7 +29,7 @@ public class Sheep extends Agent {
 	 * it can interact with the cells or with other animals
 	 * as you wish
 	 */
-	public boolean liveTurn(ArrayList<Agent> neighbors, Simulator world) {
+	public boolean liveTurn(ArrayList<Agent> neighbors, World world) {
 		if(world.getCell(x, y)==1) {
 			world.setCell(x, y, 0);
 		} else {
diff --git a/src/backend/Simulator.java b/src/backend/Simulator.java
index 4e5a183..50c8018 100644
--- a/src/backend/Simulator.java
+++ b/src/backend/Simulator.java
@@ -31,7 +31,7 @@ public class Simulator extends Thread {
 	private boolean stopFlag;
 	private boolean pauseFlag;
 	private boolean loopingBorder;
-	private boolean clickActionFlag;
+	private int clickActionFlag;
 	private int loopDelay = 150;
 	private int[][] worldGrid;
 	private World world; //get the World instance
@@ -45,7 +45,7 @@ public class Simulator extends Thread {
 		//stopFlag=false; //not necessary since i set the state when pressing the button start
 		pauseFlag=false;
 		loopingBorder=false;
-		clickActionFlag=false;
+		clickActionFlag=0;
 
 		agents = new ArrayList<Agent>();
 		fieldBirthValues = new ArrayList<Integer>();
@@ -224,7 +224,13 @@ public class Simulator extends Thread {
 	 * method called when clicking on a cell in the interface
 	 */
 	public void clickCell(int x, int y) {
-		world.setCell(x, y, getCell(x, y) == 1 ? 0 : 1);
+		if (clickActionFlag==0) {
+			world.setCell(x, y, getCell(x, y) == 1 ? 0 : 1);
+		} else if (clickActionFlag==1) {
+			
+		} else if (clickActionFlag==2) {
+			
+		}
 
 	}
 
@@ -358,10 +364,11 @@ public class Simulator extends Thread {
 	}
 
 	public void toggleClickAction() {
-		if (clickActionFlag() != 2) {
-			= ++ 
+		if (clickActionFlag < 2) {
+			clickActionFlag ++ ;
+		}else if (clickActionFlag == 2) {
+			clickActionFlag=0;
 		}
-				else = 0
 	}
 
 
@@ -385,7 +392,16 @@ public class Simulator extends Thread {
 	public String clickActionName() {
 		// TODO : initially return "sheep" or "cell"
 		// depending on clickActionFlag
-		return "";
+
+		if (clickActionFlag==0) {
+			return "cell";
+		}else if (clickActionFlag==1) {
+			return "sheep";
+		}else if (clickActionFlag==2) {
+			return "wolf";
+		}else {
+			return "error";
+		}
 	}