diff --git a/src/main/java/model/Cloud.java b/src/main/java/model/Cloud.java
index d269ca2f5fb2dfbd1febe5e7962588bb68cfac19..cf7482a639ac602e27af2b384cd41793e9903a31 100644
--- a/src/main/java/model/Cloud.java
+++ b/src/main/java/model/Cloud.java
@@ -5,14 +5,86 @@ import util.Position;
 import java.util.List;
 import java.util.Random;
 
-public class Cloud implements Extinguish{
-    private final Random randomGenerator = new Random();
-    private Position randomPosition() {
-        return new Position(randomGenerator.nextInt(rowCount), randomGenerator.nextInt(columnCount));
+import java.util.Random;
+
+public class Cloud extends Element implements Extinguish {
+    // Additional attributes for Cloud
+    private Random random = new Random();
+
+    // Constructor
+    public Cloud(Position position) {
+        super(position);
+        // Initialize cloud-specific attributes
+    }
+
+    @Override
+    public void extinguish(Element target) {
+        if (target instanceof Fire) {
+            // Extinguish the fire
+            ((Fire) target).extinguish();
+        }
+    }
+
+    @Override
+    public void update() {
+        // Move the cloud randomly
+        moveRandomly();
+
+        // Extinguish fires in adjacent positions
+        extinguishFiresInAdjacentPositions();
+    }
+
+    private void moveRandomly() {
+        int newX = position.getX() + random.nextInt(3) - 1; // Move left, right, or stay in the same column
+        int newY = position.getY() + random.nextInt(3) - 1; // Move up, down, or stay in the same row
+
+        // Update the cloud's position
+        position = new Position(newX, newY);
+    }
+
+    private void extinguishFiresInAdjacentPositions() {
+        // Get adjacent positions
+        Position[] adjacentPositions = getAdjacentPositions();
+
+        // Extinguish fires in adjacent positions
+        for (Position adjacentPosition : adjacentPositions) {
+            Element element = getGrid().getElementAt(adjacentPosition);
+            extinguish(element);
+        }
+    }
+
+    private Position[] getAdjacentPositions() {
+        int x = position.getX();
+        int y = position.getY();
+
+        // Define adjacent positions
+        Position[] adjacentPositions = {
+                new Position(x - 1, y - 1), new Position(x - 1, y), new Position(x - 1, y + 1),
+                new Position(x, y - 1),                                 new Position(x, y + 1),
+                new Position(x + 1, y - 1), new Position(x + 1, y), new Position(x + 1, y + 1)
+        };
+
+        return adjacentPositions;
     }
 
     @Override
     public List<Position> updatePosition() {
         return null;
     }
+
+    @Override
+    public List<Position> neighbors() {
+        return null;
+    }
+
+    @Override
+    public List<Position> getPosition() {
+        return null;
+    }
+
+    @Override
+    public List<Position> setPosition() {
+        return null;
+    }
 }
+
diff --git a/src/main/java/model/Element.java b/src/main/java/model/Element.java
index c6f37a309f8e3d36d5e576f2050300c8b01c8038..30e5ac9dd6322a0c04d09b4702d973886392b926 100644
--- a/src/main/java/model/Element.java
+++ b/src/main/java/model/Element.java
@@ -6,18 +6,35 @@ import java.util.List;
 import java.util.Random;
 
 public abstract class Element {
-    public void setPosition(){
+    protected Position position; // Attribute to represent the current position
+    protected Grid grid; // Attribute to represent the reference to the grid
 
+    // Constructor
+    public Element(Position position, Grid grid) {
+        this.position = position;
+        this.grid = grid;
     }
-    public List<Position> getPosition(){
-        return null;
 
+    // Abstract method for updating the state of the element
+    public abstract void update();
+
+    // Getters and Setters for Position
+    public Position getPosition() {
+        return position;
     }
-    public List<util.Position> updateToNextGeneration() {
-        return null;
+
+    public void setPosition(Position position) {
+        this.position = position;
     }
-    private List<util.Position> neighbors(util.Position position){
-        return null;
+
+    // Getters and Setters for Grid Reference
+    public Grid getGrid() {
+        return grid;
+    }
+
+    public void setGrid(Grid grid) {
+        this.grid = grid;
     }
-    private final Random randomGenerator = new Random();
 }
+
+
diff --git a/src/main/java/model/FireFighter.java b/src/main/java/model/FireFighter.java
index ff00762354d3721058ecbb67c76ae8143912fc5c..7d3c7c1dbd4f8cec4def8a7f34eca73e908880ab 100644
--- a/src/main/java/model/FireFighter.java
+++ b/src/main/java/model/FireFighter.java
@@ -5,16 +5,54 @@ import util.Position;
 import java.util.List;
 import java.util.Set;
 
-public class FireFighter implements Extinguish{
-    private final int initialFirefighterCount;
-    private List<Position> firefighterPositions;
-    private Set<Position> firePositions;
-    private Position randomPosition() {
-        return new Position(randomGenerator.nextInt(rowCount), randomGenerator.nextInt(columnCount));
+public class Firefighter extends Element implements Extinguish {
+    // Additional attributes for Firefighter, if any
+
+    // Constructor
+    public Firefighter(Position position) {
+        super(position);
+        // Initialize firefighter-specific attributes
+    }
+
+    @Override
+    public void extinguish(Element target) {
+        if (target instanceof Fire) {
+            // Extinguish the fire
+            ((Fire) target).extinguish();
+        }
     }
 
     @Override
-    public List<Position> updatePosition() {
-        return null;
+    public void update() {
+        // Logic for firefighter's update, if needed
+    }
+
+    // Enhanced move method to check terrain passability
+    public void move(int deltaX, int deltaY) {
+        int newX = position.getX() + deltaX;
+        int newY = position.getY() + deltaY;
+
+        // Check if the new position is within the grid boundaries
+        if (isValidPosition(newX, newY)) {
+            Element targetElement = getGrid().getElementAt(new Position(newX, newY));
+
+            // Check terrain type before moving
+            if (targetElement instanceof Road) {
+                // Allow movement on roads
+                position = new Position(newX, newY);
+            } else if (targetElement instanceof Mountain) {
+                // Prevent movement on mountains
+                System.out.println("Cannot move on mountains!");
+            } else {
+                // Default behavior for other terrains
+                position = new Position(newX, newY);
+            }
+        }
+    }
+
+    // Check if a position is valid within the grid boundaries
+    private boolean isValidPosition(int x, int y) {
+        return x >= 0 && x < getGrid().getRows() && y >= 0 && y < getGrid().getColumns();
     }
 }
+
diff --git a/src/main/java/model/Grid.java b/src/main/java/model/Grid.java
index 649fa28723ff376d19d337fd5fea678d8204f7e5..d40aad3993d494e6b7061e4624f14b166735097a 100644
--- a/src/main/java/model/Grid.java
+++ b/src/main/java/model/Grid.java
@@ -1,22 +1,55 @@
 package model;
 
+import util.Position;
+
 import java.util.Random;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class Grid {
-    private final int columnCount;
-    private final int rowCount;
-    private int[][] grid ;
-    public Grid(int row,int column){
-        this.columnCount = column;
-        this.rowCount = row;
-        grid = new int[rowCount][columnCount];
+    private int rows;
+    private int columns;
+    private Element[][] elements;
+
+    // Constructor
+    public Grid(int rows, int columns) {
+        this.rows = rows;
+        this.columns = columns;
+        this.elements = new Element[rows][columns];
     }
-    public State getState(Position position){
-        return null;
+
+    // Method to add an element to the grid at a specific position
+    public void addElement(Element element, Position position) {
+        elements[position.getX()][position.getY()] = element;
+        element.setGrid(this);
+        element.setPosition(position);
     }
 
-    //ham de lay trang thai cua tung vi tri ban dau
-    //ham update vi tri sau khi da dap lua
-    //ham dap lua:xet vi tri lua;vi tri dia ly, quyet dinh phuong thuc dap lua
+    // Method to get the element at a specific position on the grid
+    public Element getElementAt(Position position) {
+        return elements[position.getX()][position.getY()];
+    }
 
+    // Method to update all elements in the grid
+    public void update() {
+        for (int i = 0; i < rows; i++) {
+            for (int j = 0; j < columns; j++) {
+                Element element = elements[i][j];
+                if (element != null) {
+                    element.update();
+                }
+            }
+        }
+    }
+
+    // Getters for grid size
+    public int getRows() {
+        return rows;
+    }
+
+    public int getColumns() {
+        return columns;
+    }
 }
+
diff --git a/src/main/java/model/Mobile.java b/src/main/java/model/Mobile.java
index f08435ecb5a5b11a6dd8e2aa5f29ec0974abe8b8..8c5b5210b87c98e193a41aebea963a94412ff3e9 100644
--- a/src/main/java/model/Mobile.java
+++ b/src/main/java/model/Mobile.java
@@ -4,9 +4,44 @@ import util.Position;
 
 import java.util.List;
 
-public class Mobile implements Extinguish{
+public class Mobile extends Element implements Extinguish {
+    // Additional attributes for Mobile
+    private int moveRange;
+
+    // Constructor
+    public Mobile(Position position, int moveRange) {
+        super(position);
+        this.moveRange = moveRange;
+    }
+
+    @Override
+    public void extinguish(Element target) {
+        if (target instanceof Fire) {
+            // Extinguish the fire
+            ((Fire) target).extinguish();
+        }
+    }
+
     @Override
-    public List<Position> updatePosition() {
-        return null;
+    public void update() {
+        // Logic for mobile's update, if needed
+    }
+
+    // Method to move the mobile element
+    public void move(int deltaX, int deltaY) {
+        int newX = position.getX() + deltaX;
+        int newY = position.getY() + deltaY;
+
+        // Check if the new position is within the grid boundaries
+        if (isValidPosition(newX, newY)) {
+            // Move the mobile element
+            position = new Position(newX, newY);
+        }
+    }
+
+    // Check if a position is valid within the grid boundaries
+    private boolean isValidPosition(int x, int y) {
+        return x >= 0 && x < getGrid().getRows() && y >= 0 && y < getGrid().getColumns();
     }
 }
+
diff --git a/src/main/java/model/Moutain.java b/src/main/java/model/Moutain.java
index 3fbb0f168fd6314d615fc04bd5f106fb35c5bf20..9d91a3072a924b5cfd8932888118f2764cde129f 100644
--- a/src/main/java/model/Moutain.java
+++ b/src/main/java/model/Moutain.java
@@ -4,9 +4,29 @@ import util.Position;
 
 import java.util.List;
 
-public class Moutain implements StablePosition{
+public class Mountain extends Element implements Stable {
+    // Additional attributes for Mountain
+    private boolean impassable;
+
+    // Constructor
+    public Mountain(Position position, boolean impassable) {
+        super(position);
+        this.impassable = impassable;
+    }
+
     @Override
-    public List<Position> stablePosition() {
-        return null;
+    public void stabilize() {
+        // Logic for stabilizing mountain
+    }
+
+    @Override
+    public void update() {
+        // Logic for mountain's update, if needed
+    }
+
+    // Method to check passability
+    public boolean isPassable() {
+        return !impassable;
     }
 }
+
diff --git a/src/main/java/model/Road.java b/src/main/java/model/Road.java
index 9a28c25f72dfc67a1e02eddca83f1eba151e4b34..736d9833637b408176ed9aaf69acb0894da1038f 100644
--- a/src/main/java/model/Road.java
+++ b/src/main/java/model/Road.java
@@ -4,9 +4,24 @@ import util.Position;
 
 import java.util.List;
 
-public class Road implements StablePosition{
+public class Road extends Element {
+    // Additional attributes for Road
+    private boolean passable;
+
+    // Constructor
+    public Road(Position position, boolean passable) {
+        super(position);
+        this.passable = passable;
+    }
+
     @Override
-    public List<Position> stablePosition() {
-        return null;
+    public void update() {
+        // Logic for road's update, if needed
+    }
+
+    // Method to check passability
+    public boolean isPassable() {
+        return passable;
     }
 }
+
diff --git a/src/main/java/model/Rocks.java b/src/main/java/model/Rocks.java
index 875427169b18a7dc011c690854204a7ccedc6333..f8aa3ce5bc07d69e4f3af57a016279e90f3e0c64 100644
--- a/src/main/java/model/Rocks.java
+++ b/src/main/java/model/Rocks.java
@@ -4,9 +4,34 @@ import util.Position;
 
 import java.util.List;
 
-public class Rocks implements StablePosition{
+public class Rock extends Element implements Stable {
+    // Additional attributes for Rock
+    private int propagationDelayCounter;
+
+    // Constructor
+    public Rock(Position position, int propagationDelay) {
+        super(position);
+        this.propagationDelayCounter = propagationDelay;
+    }
+
+    @Override
+    public void stabilize() {
+        // Logic for stabilizing rock
+    }
+
     @Override
-    public List<Position> stablePosition() {
-        return null;
+    public void update() {
+        // Logic for rock's update, if needed
+
+        // Check propagation delay
+        if (propagationDelayCounter > 0) {
+            propagationDelayCounter--;
+        }
+    }
+
+    // Method to check propagation
+    public boolean canPropagate() {
+        return propagationDelayCounter <= 0;
     }
 }
+