diff --git a/fr/naulan/supermariobros/src/maps/engine.py b/fr/naulan/supermariobros/src/maps/maps_generator.py
similarity index 94%
rename from fr/naulan/supermariobros/src/maps/engine.py
rename to fr/naulan/supermariobros/src/maps/maps_generator.py
index 103f6fa..b213879 100644
--- a/fr/naulan/supermariobros/src/maps/engine.py
+++ b/fr/naulan/supermariobros/src/maps/maps_generator.py
@@ -11,14 +11,14 @@
 from fr.naulan.supermariobros.src.maps.type_of_map import TypeOfMap
 
 
-class MapsEngine(object):
+class MapsGenerator(object):
     SEPARATOR = ','
 
     data = list()
 
     def new(self, raw_data: Union[str, List], name: str, have_header: bool = True) -> None:
         lines = raw_data.splitlines() if isinstance(raw_data, str) else raw_data
-        tile_width = len(lines[0 if not have_header else 1].split(MapsEngine.SEPARATOR))
+        tile_width = len(lines[0 if not have_header else 1].split(MapsGenerator.SEPARATOR))
         tile_height = len(lines)
 
         # Load camera
@@ -36,7 +36,7 @@ def new(self, raw_data: Union[str, List], name: str, have_header: bool = True) -
         player = None
         sprites = LayeredUpdates()
         for y, line in enumerate(lines[0:] if have_header else lines):
-            columns = line.split(MapsEngine.SEPARATOR)
+            columns = line.split(MapsGenerator.SEPARATOR)
             for x, col in enumerate(columns):
                 type_of_tile = int(col)
                 if type_of_tile != TypeOfTile.EMPTY:
diff --git a/fr/naulan/supermariobros/src/res/matrices/0.txt b/fr/naulan/supermariobros/src/res/matrices/0.txt
index 2a08b3e..e7c7747 100644
--- a/fr/naulan/supermariobros/src/res/matrices/0.txt
+++ b/fr/naulan/supermariobros/src/res/matrices/0.txt
@@ -1 +1,5 @@
-type_of_map:1
\ No newline at end of file
+type_of_map:1
+0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0
+0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0
+0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0,0;0
+1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0,1;0
\ No newline at end of file
diff --git a/fr/naulan/supermariobros/test/maps_engine_test.py b/fr/naulan/supermariobros/test/maps_engine_test.py
index 9a575e5..8f3fd4c 100644
--- a/fr/naulan/supermariobros/test/maps_engine_test.py
+++ b/fr/naulan/supermariobros/test/maps_engine_test.py
@@ -1,7 +1,9 @@
+import os
+
 from unittest import TestCase
 
 from fr.naulan.supermariobros.src.entities.player import Player
-from fr.naulan.supermariobros.src.maps.engine import MapsEngine
+from fr.naulan.supermariobros.src.maps.maps_generator import MapsGenerator
 
 
 class MapsEngineTest(TestCase):
@@ -9,31 +11,29 @@ def test_empty_map(self):
         """
             Test with full empty tiles
         """
-        maps_engine = MapsEngine()
+        maps_generator = MapsGenerator()
 
-        raw_data = open("./res/matrices/empty.txt", "r")
-        maps_engine.new(raw_data.readlines(), raw_data.name, False)
-        self.assertTrue(len(maps_engine.data) == 1, "Have a map generated")
+        with open(os.getcwd() + "/fr/naulan/supermariobros/test/res/matrices/empty.txt", "r") as f:
+            maps_generator.new(f.readlines(), f.name, False)
+        self.assertTrue(len(maps_generator.data) == 1, "Have a map generated")
 
-        empty_map = maps_engine.data[0]
+        empty_map = maps_generator.data[0]
         self.assertTrue(len(empty_map.data) == 0, "Is really empty")
-        raw_data.close()
 
     def test_player(self):
         """
             Test with only player on the map
         """
-        maps_engine = MapsEngine()
+        maps_generator = MapsGenerator()
 
-        raw_data = open("./res/matrices/player.txt", "r")
-        maps_engine.new(raw_data.readlines(), raw_data.name, False)
-        self.assertTrue(len(maps_engine.data) == 1, "Have a map generated")
+        with open(os.getcwd() + "/fr/naulan/supermariobros/test/res/matrices/player.txt", "r") as f:
+            maps_generator.new(f.readlines(), f.name, False)
+        self.assertTrue(len(maps_generator.data) == 1, "Have a map generated")
 
-        player_map = maps_engine.data[0]
+        player_map = maps_generator.data[0]
         self.assertTrue(len(player_map.data) == 1, "Have player into the list of entities")
         self.assertTrue(isinstance(player_map.player, Player), "Is really a player ?")
 
         player = player_map.player
         self.assertTrue(player.x == 4*16, "Generated at a good position on x axis")
         self.assertTrue(player.y == 16, "Generated at a good position on y axis")
-        raw_data.close()