diff --git a/src/custom_AI.py b/src/custom_AI.py
index 69eb874..0d84aa2 100644
--- a/src/custom_AI.py
+++ b/src/custom_AI.py
@@ -19,7 +19,8 @@ class WolfAI(MobAI):
 
         player_distance = math.sqrt(x_distance ** 2 + y_distance ** 2)
 
-        #player.take_damages(1)
+        if player.ge_collisions_with_entity(self.entity):
+            player.take_damages(1)
 
         if abs(player_distance) > self.entity.max_speed:
             self.entity.move(x_distance / player_distance*self.entity.max_speed,
diff --git a/src/engine/entity.py b/src/engine/entity.py
index 7a79d2c..7a02688 100644
--- a/src/engine/entity.py
+++ b/src/engine/entity.py
@@ -47,8 +47,10 @@ class Entity:
 
     def set_ai(self, ai: MobAI, engine: 'Engine'):
         """Enregistre une classe permettant de gérer l'IA du mob."""
+
+        # La ligne suivante crée une instance de la classe d'IA. Cette ligne peut causer des warnings sur certains IDE
+        # mais elle est bien valide
         self.brain = ai(self, engine.entity_manager, engine.map_manager)
-        print(self.brain.entity)
 
     def update(self, delta: float):
         """Met à jour l'entité."""
@@ -80,6 +82,13 @@ class Entity:
             if self.life_points < 0:
                 self.life_points = 0
 
+    def ge_collisions_with_entity(self, other: 'Entity'):
+        """Retourne True si l'entité courante est en collision avec l'entité donnée."""
+        return (self.x+self.collision_rect[0] <= other.x+other.collision_rect[2] and
+                self.x+self.collision_rect[2] >= other.x+other.collision_rect[0] and
+                self.y+self.collision_rect[3] >= other.y+other.collision_rect[1] and
+                self.y+self.collision_rect[1] <= other.y+other.collision_rect[3])
+
     def get_collisions(self, x: float, y: float, map_manager: MapManager):
         """Calcule les collisions."""
 
diff --git a/src/main.py b/src/main.py
index db81e7d..9d4bdef 100644
--- a/src/main.py
+++ b/src/main.py
@@ -36,7 +36,7 @@ class Game(Engine):
         player.collision_rect = [-6, -7, 6, 16]
 
         player.set_default_life(15)
-        player.max_speed = 2.
+        player.max_speed = 1.1
 
         self.entity_manager.set_player_entity("player")