diff --git a/server/src/main/java/fr/lnl/game/server/games/player/AbstractPlayer.java b/server/src/main/java/fr/lnl/game/server/games/player/AbstractPlayer.java
index d3bc8d0..b2d7903 100644
--- a/server/src/main/java/fr/lnl/game/server/games/player/AbstractPlayer.java
+++ b/server/src/main/java/fr/lnl/game/server/games/player/AbstractPlayer.java
@@ -7,14 +7,14 @@ public abstract class AbstractPlayer {
 
     private int id;
     private Point position;
-    private int ernergy;
+    private int energy;
     private Weapon weapon;
     private boolean shieldDeploy;
 
-    public AbstractPlayer(int id, Point position, int ernergy, Weapon weapon, boolean shieldDeploy) {
+    public AbstractPlayer(int id, Point position, int energy, Weapon weapon, boolean shieldDeploy) {
         this.id = id;
         this.position = position;
-        this.ernergy = ernergy;
+        this.energy = energy;
         this.weapon = weapon;
         this.shieldDeploy = shieldDeploy;
     }
@@ -31,8 +31,8 @@ public abstract class AbstractPlayer {
         return position;
     }
 
-    public int getErnergy() {
-        return ernergy;
+    public int getEnergy() {
+        return energy;
     }
 
     public Weapon getWeapon() {
@@ -43,8 +43,8 @@ public abstract class AbstractPlayer {
         return shieldDeploy;
     }
 
-    public void setErnergy(int ernergy) {
-        this.ernergy = ernergy;
+    public void setEnergy(int energy) {
+        this.energy = energy;
     }
 
     public void setPosition(Point position) {
diff --git a/server/src/main/java/fr/lnl/game/server/model/AbstractModelListening.java b/server/src/main/java/fr/lnl/game/server/model/AbstractModelListening.java
new file mode 100644
index 0000000..310daab
--- /dev/null
+++ b/server/src/main/java/fr/lnl/game/server/model/AbstractModelListening.java
@@ -0,0 +1,14 @@
+package fr.lnl.game.server.model;
+import java.util.List;
+
+public abstract class AbstractModelListening implements ModelListener{
+    List<ModelListener> listeners;
+    public abstract void addListener(ModelListener e);
+    public abstract void removalListener(ModelListener e);
+    public void fireChange(){
+        for(ModelListener e : listeners){
+            e.updateModel(this);
+        }
+    }
+
+}
diff --git a/server/src/main/java/fr/lnl/game/server/model/ModelListener.java b/server/src/main/java/fr/lnl/game/server/model/ModelListener.java
new file mode 100644
index 0000000..4751679
--- /dev/null
+++ b/server/src/main/java/fr/lnl/game/server/model/ModelListener.java
@@ -0,0 +1,6 @@
+package fr.lnl.game.server.model;
+
+public interface ModelListener {
+    //à peut-être revoir
+    void updateModel(Object obj);
+}
diff --git a/server/src/main/java/fr/lnl/game/server/model/ModelListening.java b/server/src/main/java/fr/lnl/game/server/model/ModelListening.java
new file mode 100644
index 0000000..12128b7
--- /dev/null
+++ b/server/src/main/java/fr/lnl/game/server/model/ModelListening.java
@@ -0,0 +1,21 @@
+package fr.lnl.game.server.model;
+
+public class ModelListening extends AbstractModelListening{
+
+
+    @Override
+    public void addListener(ModelListener e) {
+       this.listeners.add(e);
+    }
+
+    @Override
+    public void removalListener(ModelListener e) {
+        this.listeners.remove(e);
+    }
+
+
+    @Override
+    public void updateModel(Object obj) {
+
+    }
+}