文 | 野客
来源：Python 技术「ID: pythonall」
扫雷是一款益智类小游戏，最早于 1992 年由微软在 Windows 上发行，游戏适合于全年龄段，规则简单，即在最短的时间内找出所有非雷格子且在中间过程中不能踩到雷， 踩到雷则失败，需重新开始。
本文我们使用 Python 来实现扫雷游戏，主要用的 Python 库是 pygame。
实现
游戏组成比较简单，主要包括：小方格、计时器、地雷等。
首先，我们初始化一些常量，比如：横竖方块数、地雷数、鼠标点击情况等，如下所示：
-
BLOCK_WIDTH =
30
-
BLOCK_HEIGHT =
16
-
# 块大小
-
SIZE =
20
-
# 地雷数
-
MINE_COUNT =
66
-
# 未点击
-
normal =
1
-
# 已点击
-
opened =
2
-
# 地雷
-
mine =
3
-
# 标记为地雷
-
flag =
4
-
# 标记为问号
-
ask =
5
-
# 踩中地雷
-
bomb =
6
-
# 被双击的周围
-
hint =
7
-
# 正被鼠标左右键双击
-
double =
8
-
readied =
1,
-
started =
2,
-
over =
3,
-
win =
4
接着定义一个地雷类，类中定义一些基本属性（如：坐标、状态等）及 get、set 方法，代码实现如下：
-
class Mine:
-
def __init__(self, x, y, value=
0):
-
self._x = x
-
self._y = y
-
self._value =
0
-
self._around_mine_count =
-1
-
self._status = normal
-
self.set_value(value)
-
def __repr__(self):
-
return str(self._value)
-
def get_x(self):
-
return self._x
-
def set_x(self, x):
-
self._x = x
-
x = property(fget=get_x, fset=set_x)
-
def get_y(self):
-
return self._y
-
def set_y(self, y):
-
self._y = y
-
y = property(fget=get_y, fset=set_y)
-
def get_value(self):
-
return self._value
-
def set_value(self, value):
-
if value:
-
self._value =
1
-
else:
-
self._value =
0
-
value = property(fget=get_value, fset=set_value, doc=
'0:非地雷 1:雷')
-
def get_around_mine_count(self):
-
return self._around_mine_count
-
def set_around_mine_count(self, around_mine_count):
-
self._around_mine_count = around_mine_count
-
around_mine_count = property(fget=get_around_mine_count, fset=set_around_mine_count, doc=
'四周地雷数量')
-
def get_status(self):
-
return self._status
-
def set_status(self, value):
-
self._status = value
-
status = property(fget=get_status, fset=set_status, doc=
'BlockStatus')
再接着定义一个 MineBlock 类，用来处理扫雷的基本逻辑，代码实现如下：
-
class MineBlock:
-
def __init__(self):
-
self._block = [[Mine(i, j)
for i in
range(BLOCK_WIDTH)]
for j in
range(BLOCK_HEIGHT)]
-
# 埋雷
-
for i in random.sample(
range(BLOCK_WIDTH * BLOCK_HEIGHT), MINE_COUNT):
-
self._block[i
// BLOCK_WIDTH][i % BLOCK_WIDTH].value = 1
-
def get_block(self):
-
return self._block
-
block = property(fget=get_block)
-
def getmine(self, x, y):
-
return self._block[y][x]
-
def open_mine(self, x, y):
-
# 踩到雷了
-
if self._block[y][x].value:
-
self._block[y][x].status = bomb
-
return False
-
# 先把状态改为 opened
-
self._block[y][x].status = opened
-
around = _get_around(x, y)
-
_sum =
0
-
for i, j in around:
-
if self._block[j][i].value:
-
_sum +=
1
-
self._block[y][x].around_mine_count = _sum
-
# 如果周围没有雷，那么将周围
8 个未中未点开的递归算一遍
-
if _sum ==
0:
-
for i, j in around:
-
if self._block[j][i].around_mine_count ==
-1:
-
self.open_mine(i, j)
-
return True
-
def double_mouse_button_down(self, x, y):
-
if self._block[y][x].around_mine_count ==
0:
-
return True
-
self._block[y][x].status = double
-
around = _get_around(x, y)
-
# 周围被标记的雷数量
-
sumflag =
0
-
for i, j in _get_around(x, y):
-
if self._block[j][i].status == flag:
-
sumflag +=
1
-
# 周边的雷已经全部被标记
-
result = True
-
if sumflag == self._block[y][x].around_mine_count:
-
for i, j in around:
-
if self._block[j][i].status == normal:
-
if not self.open_mine(i, j):
-
result = False
-
else:
-
for i, j in around:
-
if self._block[j][i].status == normal:
-
self._block[j][i].status = hint
-
return result
-
def double_mouse_button_up(self, x, y):
-
self._block[y][x].status = opened
-
for i, j in _get_around(x, y):
-
if self._block[j][i].status == hint:
-
self._block[j][i].status = normal
我们接下来初始化界面，首先生成由小方格组成的面板，主要代码实现如下：
-
for row in block.block:
-
for mine in row:
-
pos = (mine.x * SIZE, (mine.y +
2) * SIZE)
-
if mine.status == opened:
-
screen.blit(img_dict[mine.around_mine_count], pos)
-
opened_count +=
1
-
elif mine.status == double:
-
screen.blit(img_dict[mine.around_mine_count], pos)
-
elif mine.status == bomb:
-
screen.blit(img_blood, pos)
-
elif mine.status == flag:
-
screen.blit(img_flag, pos)
-
flag_count +=
1
-
elif mine.status == ask:
-
screen.blit(img_ask, pos)
-
elif mine.status == hint:
-
screen.blit(img0, pos)
-
elif game_status == over and mine.value:
-
screen.blit(img_mine, pos)
-
elif mine.value ==
0 and mine.status == flag:
-
screen.blit(img_error, pos)
-
elif mine.status == normal:
-
screen.blit(img_blank, pos)
看一下效果：
再接着添加面板的 head 部分，包括：显示雷数、重新开始按钮（笑脸）、显示耗时，主要代码实现如下：
-
print_text(screen, font1,
30, (SIZE *
2 - fheight)
// 2 - 2, '%02d' % (MINE_COUNT - flag_count), red)
-
if game_status == started:
-
elapsed_time =
int(time.time() - start_time)
-
print_text(screen, font1, SCREEN_WIDTH - fwidth -
30, (SIZE *
2 - fheight)
// 2 - 2, '%03d' % elapsed_time, red)
-
if flag_count + opened_count == BLOCK_WIDTH * BLOCK_HEIGHT:
-
game_status = win
-
if game_status == over:
-
screen.blit(img_face_fail, (face_pos_x, face_pos_y))
-
elif game_status == win:
-
screen.blit(img_face_success, (face_pos_x, face_pos_y))
-
else:
-
screen.blit(img_face_normal, (face_pos_x, face_pos_y))
看一下效果：
再接着添加各种点击事件，代码实现如下：
-
for event in pygame.event.get():
-
if event.
type == QUIT:
-
sys.exit()
-
elif event.
type == MOUSEBUTTONDOWN:
-
mouse_x, mouse_y = event.pos
-
x = mouse_x
// SIZE
-
y = mouse_y
// SIZE - 2
-
b1, b2, b3 = pygame.mouse.get_pressed()
-
if game_status == started:
-
# 鼠标左右键同时按下，如果已经标记了所有雷，则打开周围一圈；如果还未标记完所有雷，则有一个周围一圈被同时按下的效果
-
if b1 and b3:
-
mine = block.getmine(x, y)
-
if mine.status == opened:
-
if not block.double_mouse_button_down(x, y):
-
game_status = over
-
elif event.
type == MOUSEBUTTONUP:
-
if y <
0:
-
if face_pos_x <= mouse_x <= face_pos_x + face_size \
-
and face_pos_y <= mouse_y <= face_pos_y + face_size:
-
game_status = readied
-
block = MineBlock()
-
start_time = time.time()
-
elapsed_time =
0
-
continue
-
if game_status == readied:
-
game_status = started
-
start_time = time.time()
-
elapsed_time =
0
-
if game_status == started:
-
mine = block.getmine(x, y)
-
# 按鼠标左键
-
if b1 and not b3:
-
if mine.status == normal:
-
if not block.open_mine(x, y):
-
game_status = over
-
# 按鼠标右键
-
elif not b1 and b3:
-
if mine.status == normal:
-
mine.status = flag
-
elif mine.status == flag:
-
mine.status = ask
-
elif mine.status == ask:
-
mine.status = normal
-
elif b1 and b3:
-
if mine.status == double:
-
block.double_mouse_button_up(x, y)
我们来看一下最终实现效果：
总结
本文我们通过 Python 简单的实现了扫雷游戏，大家有兴趣的话，可以实际操作一下，看看自己能否排除全部的雷。
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转载：https://blog.csdn.net/weixin_48923393/article/details/109213602
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