# MinesweeperΒΆ

Minesweeper, a logic puzzle game to clear the hidden mines.

```"""Minesweeper

Exercises

1. What does the `seed(0)` function call do?
2. Change the number of bombs on the grid.
3. Change the size of the grid.
"""

from random import randrange, seed
from turtle import *

from freegames import floor, square

seed(0)
bombs = {}
shown = {}
counts = {}

def initialize():
"""Initialize `bombs`, `counts`, and `shown` grids."""
for x in range(-250, 250, 50):
for y in range(-250, 250, 50):
bombs[x, y] = False
shown[x, y] = False
counts[x, y] = -1

for count in range(8):
x = randrange(-200, 200, 50)
y = randrange(-200, 200, 50)
bombs[x, y] = True

for x in range(-200, 200, 50):
for y in range(-200, 200, 50):
total = 0
for i in (-50, 0, 50):
for j in (-50, 0, 50):
total += bombs[x + i, y + j]
counts[x, y] = total

def stamp(x, y, text):
"""Display `text` at coordinates `x` and `y`."""
square(x, y, 50, 'white')
color('black')
write(text, font=('Arial', 50, 'normal'))

def draw():
"""Draw the initial board grid."""
for x in range(-200, 200, 50):
for y in range(-200, 200, 50):
stamp(x, y, '?')

def end():
"""Draw the bombs as X's on the grid."""
for x in range(-200, 200, 50):
for y in range(-200, 200, 50):
if bombs[x, y]:
stamp(x, y, 'X')

def tap(x, y):
"""Respond to screen click at `x` and `y` coordinates."""
x = floor(x, 50)
y = floor(y, 50)

if bombs[x, y]:
end()
return

pairs = [(x, y)]

while pairs:
x, y = pairs.pop()
stamp(x, y, counts[x, y])
shown[x, y] = True

if counts[x, y] == 0:
for i in (-50, 0, 50):
for j in (-50, 0, 50):
pair = x + i, y + j
if not shown[pair]:
pairs.append(pair)

setup(420, 420, 370, 0)
hideturtle()
tracer(False)
initialize()
draw()
onscreenclick(tap)
done()
```