diff --git a/src/main/java/app/SimulatorApplication.java b/src/main/java/app/SimulatorApplication.java
index 14f8fbbaf452fc8b5dd923e2c6a4ec38eb441808..a2d7b95bdd1335ff818e23b64d4d5cf1b574323e 100644
--- a/src/main/java/app/SimulatorApplication.java
+++ b/src/main/java/app/SimulatorApplication.java
@@ -13,16 +13,16 @@ import javafx.stage.Stage;
 public class SimulatorApplication extends javafx.application.Application {
   private static final String VIEW_RESOURCE_PATH = "/view/view.fxml";
   private static final String APP_NAME = "Firefighter simulator";
-  private static final int ROW_COUNT = 50;
-  private static final int COLUMN_COUNT = 50;
+  private static final int ROW_COUNT = 40;
+  private static final int COLUMN_COUNT = 40;
   private static final int BOX_WIDTH = 15;
   private static final int BOX_HEIGHT = 15;
-  public static final int INITIAL_FIRE_COUNT = 6;
-  public static final int INITIAL_FIREFIGHTER_COUNT = 32;
-  public static final int INITIAL_MOTORIZED_FIREFIGHTER_COUNT = 10;
-  public static final int INITIAL_CLOUD_COUNT = 15;
-  public static final int INITIAL_MOUNTAIN_COUNT= 28;
-  public static final int TURNS_FOR_SPAWNING_AIRTANKER = 4;
+  public static final int INITIAL_FIRE_COUNT = 8;
+  public static final int INITIAL_FIREFIGHTER_COUNT = 6;
+  public static final int INITIAL_MOTORIZED_FIREFIGHTER_COUNT = 8;
+  public static final int INITIAL_CLOUD_COUNT = 20;
+  public static final int INITIAL_MOUNTAIN_COUNT= 20;
+  public static final int TURNS_FOR_SPAWNING_AIRTANKER = 10;
 
   private Stage primaryStage;
   private Parent view;
diff --git a/src/main/java/controller/Controller.java b/src/main/java/controller/Controller.java
index 0e99dcf451a07e5b6f780a534750ec8cc110bd9c..1cf89653fbc8e469e235f1f8a9ba3fddc836b6b0 100644
--- a/src/main/java/controller/Controller.java
+++ b/src/main/java/controller/Controller.java
@@ -20,15 +20,15 @@ import javafx.scene.control.ToggleGroup;
 import javafx.util.Duration;
 import javafx.util.Pair;
 import model.Board;
-import model.Cloud;
 import model.EntityFactory;
-import model.Fire;
-import model.FireFighter;
-import model.FireFighterScenario;
-import model.MotorizedFireFighter;
-import model.Mountain;
-import model.Rockery;
 import model.Square;
+import model.firefighterscenario.Cloud;
+import model.firefighterscenario.Fire;
+import model.firefighterscenario.FireFighter;
+import model.firefighterscenario.FireFighterScenario;
+import model.firefighterscenario.MotorizedFireFighter;
+import model.firefighterscenario.Mountain;
+import model.firefighterscenario.Rockery;
 import util.Position;
 import view.Grid;
 import view.ViewElement;
@@ -136,7 +136,7 @@ public class Controller {
     entityCounts.put((pos, b) -> new MotorizedFireFighter(pos, b), initialMotorizedFirefightersCount);
     entityCounts.put((pos, b) -> new Cloud(pos, b), initialcloudCount);
     entityCounts.put((pos, b) -> new Mountain(pos), initialmountaincount);
-    entityCounts.put((pos, b) -> new Rockery(pos), 30);
+    entityCounts.put((pos, b) -> new Rockery(pos), 3);
 
     model.placeInitialEntities(entityCounts);
     this.setModel(model);
diff --git a/src/main/java/model/AirTanker.java b/src/main/java/model/firefighterscenario/AirTanker.java
similarity index 98%
rename from src/main/java/model/AirTanker.java
rename to src/main/java/model/firefighterscenario/AirTanker.java
index 4f4bfc1df8894ef120025037df971826b6a31e50..a80fdb66bfae4e2c565b1406f12c8afe4e7bda70 100644
--- a/src/main/java/model/AirTanker.java
+++ b/src/main/java/model/firefighterscenario/AirTanker.java
@@ -1,10 +1,13 @@
-package model;
+package model.firefighterscenario;
 
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Objects;
 
 import javafx.scene.paint.Color;
+import model.Board;
+import model.Entity;
+import model.Square;
 import util.Direction;
 import util.Position;
 import util.PositionUtil;
diff --git a/src/main/java/model/Cloud.java b/src/main/java/model/firefighterscenario/Cloud.java
similarity index 92%
rename from src/main/java/model/Cloud.java
rename to src/main/java/model/firefighterscenario/Cloud.java
index 840195d26c315cd96613654b323c2164ebbfb056..3a587b5594531ee34f995f4840a82fdfa3bdefcb 100644
--- a/src/main/java/model/Cloud.java
+++ b/src/main/java/model/firefighterscenario/Cloud.java
@@ -1,9 +1,13 @@
-package model;
+package model.firefighterscenario;
 
 import java.util.List;
 import java.util.Random;
 
 import javafx.scene.paint.Color;
+import model.Board;
+import model.EmptySquare;
+import model.Entity;
+import model.Square;
 import util.Position;
 import util.PositionUtil;
 
@@ -37,6 +41,9 @@ public class Cloud implements Entity{
         adjacentPositions.removeIf(p -> b.doesSquareContainEntity(p, FireFighter.class));
 
         // Choisir une position aléatoire parmi les mouvements possibles
+        if(adjacentPositions.size() < 0){
+            return List.of();
+        }
         Position next_position = adjacentPositions.get(new Random().nextInt(adjacentPositions.size()));
 
         // Si la nouvelle position contient un feu, éteindre le feu
diff --git a/src/main/java/model/Fire.java b/src/main/java/model/firefighterscenario/Fire.java
similarity index 97%
rename from src/main/java/model/Fire.java
rename to src/main/java/model/firefighterscenario/Fire.java
index 332481980f949dbc74737e71f6986fd0828b9602..0d79d7a5a8a0de817dac0f192711f547627a6a4a 100644
--- a/src/main/java/model/Fire.java
+++ b/src/main/java/model/firefighterscenario/Fire.java
@@ -1,4 +1,4 @@
-package model;
+package model.firefighterscenario;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -6,6 +6,9 @@ import java.util.Objects;
 import java.util.Optional;
 
 import javafx.scene.paint.Color;
+import model.Board;
+import model.Entity;
+import model.Square;
 import util.Position;
 import util.PositionUtil;
 
diff --git a/src/main/java/model/FireFighter.java b/src/main/java/model/firefighterscenario/FireFighter.java
similarity index 97%
rename from src/main/java/model/FireFighter.java
rename to src/main/java/model/firefighterscenario/FireFighter.java
index cf4307bf1dba849c852e39fd2020dbde47490ad5..8adfeba28784f7462854258e4315bd6d0129ae07 100644
--- a/src/main/java/model/FireFighter.java
+++ b/src/main/java/model/firefighterscenario/FireFighter.java
@@ -1,9 +1,13 @@
-package model;
+package model.firefighterscenario;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Random;
 
 import javafx.scene.paint.Color;
+import model.Board;
+import model.EmptySquare;
+import model.Entity;
+import model.Square;
 import util.Position;
 import util.PositionUtil;
 
@@ -129,7 +133,7 @@ public class FireFighter implements Entity {
         List<Position> possibleMoves = PositionUtil.generateAllAdjacentPositions(currentPos, b);
     
         // Filter out positions that are not empty or contain obstacles
-        possibleMoves.removeIf(p -> !b.isPositionEmpty(p) || b.doesSquareContainEntity(p, Mountain.class));
+        possibleMoves.removeIf(p -> b.doesSquareContainEntity(p, Mountain.class));
     
         // If no possible moves, return null
         if (possibleMoves.isEmpty()) {
diff --git a/src/main/java/model/FireFighterScenario.java b/src/main/java/model/firefighterscenario/FireFighterScenario.java
similarity index 94%
rename from src/main/java/model/FireFighterScenario.java
rename to src/main/java/model/firefighterscenario/FireFighterScenario.java
index 66e0be1f922cf2721d1d16f0b0a5128a9e0506f6..658e958f83b44936128658603b802895a69197a7 100644
--- a/src/main/java/model/FireFighterScenario.java
+++ b/src/main/java/model/firefighterscenario/FireFighterScenario.java
@@ -1,4 +1,4 @@
-package model;
+package model.firefighterscenario;
 
 import java.util.ArrayList;
 import java.util.Iterator;
@@ -6,6 +6,13 @@ import java.util.List;
 import java.util.Map;
 import java.util.Random;
 
+import app.SimulatorApplication;
+import model.Board;
+import model.Entity;
+import model.EntityFactory;
+import model.EntityScenario;
+import model.EntitySpawner;
+import model.Square;
 import util.Matrix;
 import util.PathGenerator;
 import util.Position;
@@ -15,12 +22,14 @@ public class FireFighterScenario extends EntityScenario implements Board<Square>
 
   private Matrix<Square> matrix;
   private int step;
+  private int turnsToSpawnAirTanker;
 
   private Map<EntityFactory, Integer> initialMap;
 
   public FireFighterScenario(int columns, int rows) {
     this.matrix = new Matrix<Square>(columns, rows);
     initScenario(matrix);
+    this.turnsToSpawnAirTanker = SimulatorApplication.TURNS_FOR_SPAWNING_AIRTANKER;
     this.step = 0;
   }
 
@@ -105,7 +114,8 @@ public class FireFighterScenario extends EntityScenario implements Board<Square>
     this.step = this.step + 1;
 
     // Check if it's time to spawn an AirTanker
-    if (this.step % 8 == 0) {
+    if (this.step % this.turnsToSpawnAirTanker == 0) {
+      System.out.println("apparation");
       // Spawn an AirTanker at a random edge position
       spawnAirTanker(changedPositions);
     }
diff --git a/src/main/java/model/MotorizedFireFighter.java b/src/main/java/model/firefighterscenario/MotorizedFireFighter.java
similarity index 98%
rename from src/main/java/model/MotorizedFireFighter.java
rename to src/main/java/model/firefighterscenario/MotorizedFireFighter.java
index 146fb381e621e9c5b19ef88f71b63c4c0029498d..3564d384fe27f81e247b438324e3cbf86b5b6767 100644
--- a/src/main/java/model/MotorizedFireFighter.java
+++ b/src/main/java/model/firefighterscenario/MotorizedFireFighter.java
@@ -1,9 +1,11 @@
-package model;
+package model.firefighterscenario;
 
 import java.util.ArrayList;
 import java.util.List;
 
 import javafx.scene.paint.Color;
+import model.Board;
+import model.Square;
 import util.Position;
 import util.PositionUtil;
 
diff --git a/src/main/java/model/Mountain.java b/src/main/java/model/firefighterscenario/Mountain.java
similarity index 91%
rename from src/main/java/model/Mountain.java
rename to src/main/java/model/firefighterscenario/Mountain.java
index 4315c6fa6f354b7f4d224f94ebb62485cc45148c..e229c30a0f9d35af7e80c7c8e28a8da1bcf72db4 100644
--- a/src/main/java/model/Mountain.java
+++ b/src/main/java/model/firefighterscenario/Mountain.java
@@ -1,8 +1,11 @@
-package model;
+package model.firefighterscenario;
 
 import java.util.List;
 
 import javafx.scene.paint.Color;
+import model.Board;
+import model.Entity;
+import model.Square;
 import util.Position;
 
 public class Mountain implements Entity{
diff --git a/src/main/java/model/Road.java b/src/main/java/model/firefighterscenario/Road.java
similarity index 91%
rename from src/main/java/model/Road.java
rename to src/main/java/model/firefighterscenario/Road.java
index aacbd8e7a3d4f9408c550a73e57f25093f3df0dd..fa90dc7d64b4995d5271810209395ab11c45547c 100644
--- a/src/main/java/model/Road.java
+++ b/src/main/java/model/firefighterscenario/Road.java
@@ -1,8 +1,11 @@
-package model;
+package model.firefighterscenario;
 
 import java.util.List;
 
 import javafx.scene.paint.Color;
+import model.Board;
+import model.Entity;
+import model.Square;
 import util.Position;
 
 public class Road implements Entity{
diff --git a/src/main/java/model/Rockery.java b/src/main/java/model/firefighterscenario/Rockery.java
similarity index 93%
rename from src/main/java/model/Rockery.java
rename to src/main/java/model/firefighterscenario/Rockery.java
index 6aebd270145bc6f2f745560d1dca444e4111808f..9b64db33ec04539cdbc3d5bd428992455292d7f9 100644
--- a/src/main/java/model/Rockery.java
+++ b/src/main/java/model/firefighterscenario/Rockery.java
@@ -1,8 +1,11 @@
-package model;
+package model.firefighterscenario;
 
 import java.util.List;
 
 import javafx.scene.paint.Color;
+import model.Board;
+import model.Entity;
+import model.Square;
 import util.Position;
 
 public class Rockery implements Entity{
diff --git a/src/main/java/util/Matrix.java b/src/main/java/util/Matrix.java
index 920d2a49a71cd781c3eb3458a353866050c23358..36a06da1550e9d89446c4f936d695a8bdab698fe 100644
--- a/src/main/java/util/Matrix.java
+++ b/src/main/java/util/Matrix.java
@@ -5,9 +5,9 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 
-import model.Fire;
-import model.FireFighter;
 import model.Square;
+import model.firefighterscenario.Fire;
+import model.firefighterscenario.FireFighter;
 
 public class Matrix<E> implements Iterable<E> {
     private ArrayList<ArrayList<E>> matrix;