implemented py-battleship task

app/main.py

@@ -1,34 +1,58 @@
 class Deck:
-    def __init__(self, row, column, is_alive=True):
-        pass
+    def __init__(self, row: int, column: int, is_alive: bool = True) -> None:
+        self.row = row
+        self.column = column
+        self.is_alive = is_alive
 
 
 class Ship:
-    def __init__(self, start, end, is_drowned=False):
-        # Create decks and save them to a list `self.decks`
-        pass
+    def __init__(
+        self,
+        start: tuple[int, int],
+        end: tuple[int, int],
+        is_drowned: bool = False
+    ) -> None:
+        self.is_drowned = is_drowned
+        self.decks = []
+        if start[0] != end[0]:
+            for x_position in range(start[0], end[0] + 1):
+                self.decks.append(Deck(x_position, start[1]))
+        elif start[1] != end[1]:
+            for y_position in range(start[1], end[1] + 1):
+                self.decks.append(Deck(start[0], y_position))
+        else:
+            self.decks.append(Deck(start[0], end[1]))
 
-    def get_deck(self, row, column):
-        # Find the corresponding deck in the list
-        pass
+    def get_deck(self, row: int, column: int) -> Deck:
+        for deck in self.decks:
+            if deck.row == row and deck.column == column:
+                return deck
 
-    def fire(self, row, column):
-        # Change the `is_alive` status of the deck
-        # And update the `is_drowned` value if it's needed
-        pass
+    def fire(self, row: int, column: int) -> None:
+        self.get_deck(row, column).is_alive = False
+        self.is_drowned = all([not deck.is_alive for deck in self.decks])
 
 
 class Battleship:
-    def __init__(self, ships):
-        # Create a dict `self.field`.
-        # Its keys are tuples - the coordinates of the non-empty cells,
-        # A value for each cell is a reference to the ship
-        # which is located in it
-        pass
+    def __init__(self, ships: list[tuple]) -> None:
+        self.field = {}
+        for ship in ships:
+            boat = Ship(ship[0], ship[1])
+            if ship[0][0] != ship[1][0]:
+                for x_position in range(ship[0][0], ship[1][0] + 1):
+                    self.field[(ship[0][1], x_position)] = boat
+            elif ship[0][1] != ship[1][1]:
+                for y_position in range(ship[0][1], ship[1][1] + 1):
+                    self.field[(ship[0][0], y_position)] = boat
+            else:
+                self.field[ship[0]] = boat
 
-    def fire(self, location: tuple):
-        # This function should check whether the location
-        # is a key in the `self.field`
-        # If it is, then it should check if this cell is the last alive
-        # in the ship or not.
-        pass
+    def fire(self, location: tuple[int, int]) -> str:
+        if location not in self.field:
+            return "Miss!"
+        if location in self.field:
+            self.field[location].fire(location[0], location[1])
+            if self.field[location].is_drowned:
+                return "Sunk!"
+            else:
+                return "Hit!"