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## game.py
import random
from typing import List, Tuple
class Game:
def __init__(self):
self.grid: List[List[int]] = [[0 for _ in range(4)] for _ in range(4)]
self.score: int = 0
self.game_over: bool = False
def reset_game(self):
self.grid = [[0 for _ in range(4)] for _ in range(4)]
self.score = 0
self.game_over = False
self.add_new_tile()
self.add_new_tile()
def move(self, direction: str):
if direction == "up":
self._move_up()
elif direction == "down":
self._move_down()
elif direction == "left":
self._move_left()
elif direction == "right":
self._move_right()
def is_game_over(self) -> bool:
for i in range(4):
for j in range(4):
if self.grid[i][j] == 0:
return False
if j < 3 and self.grid[i][j] == self.grid[i][j + 1]:
return False
if i < 3 and self.grid[i][j] == self.grid[i + 1][j]:
return False
return True
def get_empty_cells(self) -> List[Tuple[int, int]]:
empty_cells = []
for i in range(4):
for j in range(4):
if self.grid[i][j] == 0:
empty_cells.append((i, j))
return empty_cells
def add_new_tile(self):
empty_cells = self.get_empty_cells()
if empty_cells:
x, y = random.choice(empty_cells)
self.grid[x][y] = 2 if random.random() < 0.9 else 4
def get_score(self) -> int:
return self.score
def _move_up(self):
for j in range(4):
for i in range(1, 4):
if self.grid[i][j] != 0:
for k in range(i, 0, -1):
if self.grid[k - 1][j] == 0:
self.grid[k - 1][j] = self.grid[k][j]
self.grid[k][j] = 0
def _move_down(self):
for j in range(4):
for i in range(2, -1, -1):
if self.grid[i][j] != 0:
for k in range(i, 3):
if self.grid[k + 1][j] == 0:
self.grid[k + 1][j] = self.grid[k][j]
self.grid[k][j] = 0
def _move_left(self):
for i in range(4):
for j in range(1, 4):
if self.grid[i][j] != 0:
for k in range(j, 0, -1):
if self.grid[i][k - 1] == 0:
self.grid[i][k - 1] = self.grid[i][k]
self.grid[i][k] = 0
def _move_right(self):
for i in range(4):
for j in range(2, -1, -1):
if self.grid[i][j] != 0:
for k in range(j, 3):
if self.grid[i][k + 1] == 0:
self.grid[i][k + 1] = self.grid[i][k]
self.grid[i][k] = 0
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