diff --git a/main.py b/main.py
index 52b8cc5..b0711ca 100644
--- a/main.py
+++ b/main.py
@@ -1,14 +1,9 @@
-#import os
-#always use absolute paths
-import os
-import time
-
-#get pid
-pid = os.getpid()
-
-#write pid to file /tmp/battleship_server.pid
-with open('/tmp/battleship_server.pid', 'w') as f:
-    f.write(str(pid))
-print('Hello my(i \'m battleship server) pid is  ' + str(pid))
-while True:
-    time.sleep(2)
+from pider import write_pid
+from map import place_ship, generate_maps
+#from ships_abilities import abilities, ships
+main_map_size = [10, 10]
+aux_map_size = [5, 5]
+maps = {}
+generate_maps(maps, main_map_size, aux_map_size)
+place_ship("aircraft_carrier", "L", maps, 0, 0, "H")
+write_pid()
\ No newline at end of file
diff --git a/map.py b/map.py
new file mode 100644
index 0000000..6a1ca42
--- /dev/null
+++ b/map.py
@@ -0,0 +1,78 @@
+#constants
+from ships_abilities import Ship, Ship_Piece
+
+class Map_Cell:
+    def __init__(self, x:int, y:int, ship:Ship):
+        self.x = x
+        self.y = y
+        self.ship = ship
+        self.alive = True
+        self.hit = False
+    def hit(self):
+        self.hit = True
+        if self.ship is not None:
+            self.alive = self.ship.hit()
+            
+
+#generate maps
+def generate_maps(maps:dict, main_map_size:list, aux_map_size:list):
+    maps["L"] = []
+    maps["La"] = []
+    maps["R"] = []
+    maps["Ra"] = []
+    for i in range(main_map_size[0]):   
+        maps["L"].append([])
+        maps["R"].append([])
+        for j in range(main_map_size[1]):
+            maps["L"][i].append(Map_Cell(i, j, None))
+            maps["R"][i].append(Map_Cell(i, j, None))
+    for i in range(aux_map_size[0]):
+        maps["La"].append([])
+        maps["Ra"].append([])
+        for j in range(aux_map_size[1]):
+            maps["La"][i].append(Map_Cell(i, j, None))
+            maps["Ra"][i].append(Map_Cell(i, j, None))
+
+def inside_map(x:int, y:int, map_name:str, maps):
+    if map_name == "R" or map_name == "L":
+        mapsize = [maps["L"].__len__(), maps["L"][0].__len__()]
+    elif map_name == "Ra" or map_name == "La":
+        mapsize = [maps["La"].__len__(), maps["La"][0].__len__()]
+    else:
+        raise Exception("Invalid map type")
+    if x < 0 or x >= mapsize[0] or y < 0 or y >= mapsize[1]:
+        return False
+    return True
+
+def can_place_ship(x:int, y:int, map_name:str, maps):
+    if not inside_map(x, y, map_name, maps):
+        return False
+    if maps[map_name][y][x].ship is not None:
+        return False
+    return True
+
+#place ship on map
+def place_ship(ship_type:str, map_name:str, maps, x:int, y:int, orientation:str):
+    ship = Ship(ship_type, orientation, x, y)
+    for i in range(ship.size):
+        ship_coord_h = [x + i, y]
+        ship_coord_v = [x, y + i]
+        ship_coord_dl = [x + i, y + i]
+        ship_coord_dr = [x - i, y + i]
+        if orientation == "H":
+            ship_coord = ship_coord_h
+        elif orientation == "V":
+            ship_coord = ship_coord_v
+        elif orientation == "DL":
+            ship_coord = ship_coord_dl
+        elif orientation == "DR":
+            ship_coord = ship_coord_dr
+        else:
+            raise Exception("Invalid orientation")
+
+        if not can_place_ship(ship_coord[0], ship_coord[1], map_name, maps):
+            return False
+        else:
+            ship_piece = Ship_Piece(ship, ship_coord[0], ship_coord[1], i, orientation)
+            maps[map_name][ship_coord[0]][ship_coord[1]].ship = ship_piece
+    return True
\ No newline at end of file
diff --git a/pider.py b/pider.py
new file mode 100644
index 0000000..14e4405
--- /dev/null
+++ b/pider.py
@@ -0,0 +1,8 @@
+#always use absolute paths
+import os
+
+def write_pid():
+    pid = os.getpid()
+    with open('/tmp/battleship_server.pid', 'w') as f:
+        f.write(str(pid))
+    print('Hello my(i \'m battleship server) pid is  ' + str(pid))
\ No newline at end of file
diff --git a/ships_abilities.py b/ships_abilities.py
new file mode 100644
index 0000000..367b199
--- /dev/null
+++ b/ships_abilities.py
@@ -0,0 +1,73 @@
+
+ships = [
+    {"name": "aircraft_carrier", "size": 5, "lives": 1},
+    {"name": "bomber_ship", "size": 4, "lives": 1},
+    {"name": "sonar_ship", "size": 3, "lives": 1},
+    {"name": "submarine", "size": 2, "lives": 1},
+    {"name": "small_ship", "size": 1, "lives": 2}
+]
+
+abilities = [
+    {"name": "air strike", "description": "A strike that deals damage to all enemy's ships except submarines.", "ship_name": "aircraft_carrier", "round_period": 3, "ship": None},
+    {"name": "bomber", "description": "A bomber that allows you to shoot twice.", "round_period": 1, "ship_name": "bomber_ship", "ship": None},
+    {"name": "sonar", "description": "A sonar scan that reveals the location of enemy's ships.", "round_period": 5, "ship_name": "sonar_ship", "ship": None},
+    {"name": "torpedo", "description": "A torpedo that deals damage to all enemy's ships.", "round_period": 10, "ship_name": "submarine", "ship": None},
+    {"name": "spy", "description": "A spy that reveals the location of enemy's ships.", "round_period": 20, "ship_name": None, "ship": None},
+    {"name": "nuke", "description": "A nuclear strike that deals damage to all ships and terminates the game.", "round_period": 100, "ship_name": None, "ship": None},
+]
+
+#for all ships in abilities add ship_name to the description
+def add_ship_name_to_abilities(abilities):
+    for ability in abilities:
+        if ability["ship_name"] is not None:
+            ability["description"] = ability["description"] + " It is fired from a " + ability["ship_name"].replace("_", " ") + "."
+            for ship in ships:
+                if ship["name"] == ability["ship_name"]:
+                    ability["ship"] = ship
+
+class Ability:
+    def __init__(self, name, description, round_period, ship_name):
+        self.name = name
+        self.description = description
+        self.round_period = round_period
+        self.ship_name = ship_name
+        self.current_round_period = 0
+    
+
+class Ship:
+    def __init__(self, type, direction, x, y):
+        self.type = type
+        self.direction = direction
+        self.x = x
+        self.y = y
+        for ship in ships:
+            if ship["name"] == type:
+                self.size = ship["size"]
+                self.lives = ship["lives"]
+                break
+        self.alive = True
+        self.pieces = []
+        
+class Ship_Piece:
+    def __init__(self, ship:Ship, x:int, y:int, index:int, orientation:str):
+        if ship == None:
+            raise Exception("Ship is None")
+        self.ship = ship
+        self.x = x
+        self.y = y
+        self.index = index
+        self.orientation = orientation
+        self.alive = False
+        self.ship.pieces.append(self)
+    def hit(self):
+        self.ship.lives -= 1
+        if self.ship.lives == 0:
+            self.ship.alive = False
+            ship_alive = False
+            for piece in self.ship.pieces:
+                if piece.alive:
+                    ship_alive = True
+                    break
+            self.ship.alive = ship_alive
+        return self.alive
+