diff --git a/prototypes/saves_prototypes/README b/prototypes/saves_prototypes/README
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+# Prototypes Saves files
+
+This prototype is aiming at defining a structure for saving "map" files.
+
+The objective is to have it quite modular so that if we want to add more level we can easily do so.
+
+Another objective is that theses files are as small as possible without missing information.
+
+## What needs to be saved
+
+We need to have the shape of the map itself and the shape and number of each pieces it is a minimum
+
+I also want to define an header (and maybe a footer) to the file so that it is easier to recover if any corruption occure to a drive
+(we all been trough that)
+
+## Method
+
+I would like to save a file as byte so I need to have a bitewise parser. This is the objective of this prototype
+
+## Structure
+
+The map file should have the following structure:
+- The file should be named <map_name>.shmap (where shmap stand for shape map)
+- The file should start with the ascii characters S, M then S (0x534D53)
+- The file should end with the ascii characters S, M then E (0x534D45)
+- First we define the map shape
+    1) the map should always be a square. the lenght of this square will be the first octet after the header.
+    2) next we have s x s (where s is the size of the square) bits (1/0) where
+        - 0 represent an empty cell (where we can place a shape)
+        - 1 represent a filled cell (where we can't place a shape)
+- Next we define the amount of shape for this level with a number on one octet
+- Next we define each shapes with the same method defined previously for a map
+
+With all that we should have all that is needed for a level to work... further information could be added later this is just a prototype atm
+
diff --git a/prototypes/saves_prototypes/parser.py b/prototypes/saves_prototypes/parser.py
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+class MapNotSquareException(Exception):
+    pass
+
+class  PieceNotSquareException(Exception):
+    pass
+
+class save_Parser:
+    def __init__(self, filename:str ):
+        self.filename = filename
+        self.map_shape = [[0]]
+        self.pieces = list()
+
+    def define_map(self, map_shape):
+        size = len(map_shape)
+        for row in map_shape:
+            if size != len(row):
+                raise MapNotSquareException
+        self.map_shape = map_shape
+
+    def add_piece(self, piece_shape):
+        size = len(piece_shape)
+        for row in piece_shape:
+            if size != len(row):
+                raise PieceNotSquareException
+        self.pieces.append(piece_shape)
+
+    def __str__(self):
+        return str(self.map_shape)
+
+    def shape_to_bytes(self, shape):
+        bytes_ammount = len(shape) // 8
+        bytes_trash = len(shape) % 8
+        tray = 0
+
+    def load(self):
+        """
+        load the file and prepare to parse informations
+        """
+
+    def save(self):
+        """
+        save parsed info to the file
+        """
+        save_data = b''
+        save_data += b'SMS'
+        save_data += bytes(len(map_shape))
+        save_data += shape_to_bytes(self.map_shape)
+        save_data += bytes()
+        save_data += b'SME'
+        with open(self.filename, mode='bw') as file:
+            file.write(save_data)
+
+if __name__ == "__main__":
+    p = save_Parser('test.map')
+    p.define_map([[0,1],[0,1]])
+    p.save()
diff --git a/prototypes/saves_prototypes/test.map b/prototypes/saves_prototypes/test.map
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+SMSSME
\ No newline at end of file