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battleships.py
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battleships.py
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class Ship:
def __init__(self, bow=(0, 0), horizontal=True, length=1):
hit = [False for _ in range(length)]
self.bow, self.horizontal, self.length, self.__hit = bow, horizontal, length, hit
def shoot_at(self, tup):
"""
return:
0 if not hit
1 if hit
2 if hit before
3 if destroyed
"""
if self.__hit.count(True) == len(self.__hit):
return 3
if self.horizontal:
relative = tup[1] - self.bow[1]
if tup[0] == self.bow[0] and 0 <= relative < self.length:
if not self.__hit[relative]:
self.__hit = self.__hit[:relative] + [True] + self.__hit[relative + 1:]
if self.__hit.count(True) == len(self.__hit):
return 3
return 1
else:
return 2
else:
return 0
else:
relative = tup[0] - self.bow[0]
if tup[1] == self.bow[1] and 0 <= relative < self.length:
if not self.__hit[relative]:
self.__hit = self.__hit[:relative] + [True] + self.__hit[relative + 1:]
if self.__hit.count(True) == len(self.__hit):
return 3
return 1
else:
return 2
else:
return 0
class Field:
__random = __import__('random')
@staticmethod
def __downcheck(number):
if number >= 0:
return number
return 0
def __asdcut(self, field, up, down, left, right):
field = field[:self.__downcheck(up)] + list(map(lambda x: x[:self.__downcheck(left)] +
['N'] * (right - left - 1) + x[right:],
field[self.__downcheck(up):down])) + field[down:]
return field
@staticmethod
def __cut(field=(), pos=(), length=0, horizontal=True, targetsize=2, targethor=True):
field = [list(line) for line in field]
up = pos[0] - 1 if targethor else pos[0] - targetsize
down = pos[0] + 2 if horizontal else pos[0] + length + 1
left = pos[1] - targetsize if targethor else pos[1] - 1
right = pos[1] + length + 1 if horizontal else pos[1] + 2
if up < 0:
up = 0
if down > len(field):
down = len(field)
if right > len(field[0]):
right = len(field[0])
if left < 0:
left = 0
field = field[:up] + list(map(lambda x: x[:left] + ['N' for _ in range(right - left)]
+ x[right:], field[up:down])) + field[down:]
return field
def __randompos(self, lst):
while True:
lineind = self.__random.randrange(len(lst))
line = lst[lineind]
if line != ['N'] * (len(line)):
for column in self.__random.sample(line, len(line)):
if column != 'N':
return lineind, column
def __generate(self):
# Generate fields
field = list(map(lambda x: list(x), ['__________'] * 10))
pos3h = [list(range(8))] * 10
pos3v = [list(range(10))] * 8
pos2h = [list(range(9))] * 10
pos2v = [list(range(10))] * 9
# Place size 4 ship
if self.__random.randint(0, 1):
column4 = self.__random.randrange(7)
line4 = self.__random.randrange(10)
self.ship4 = Ship(bow=(line4, column4), horizontal=True, length=4)
field[line4][column4: column4 + 4] = '****'
pos3h = self.__cut(field=pos3h, pos=(line4, column4), length=4, horizontal=True, targetsize=3,
targethor=True)
pos3v = self.__cut(field=pos3v, pos=(line4, column4), length=4, horizontal=True, targetsize=3,
targethor=False)
pos2h = self.__cut(field=pos2h, pos=(line4, column4), length=4, horizontal=True, targetsize=2,
targethor=True)
pos2v = self.__cut(field=pos2v, pos=(line4, column4), length=4, horizontal=True, targetsize=2,
targethor=False)
else:
line4 = self.__random.randrange(7)
column4 = self.__random.randrange(10)
self.ship4 = Ship(bow=(line4, column4), horizontal=False, length=4)
for l in range(line4, line4 + 4):
field[l][column4] = '*'
pos3h = self.__cut(field=pos3h, pos=(line4, column4), length=4, horizontal=False, targetsize=3,
targethor=True)
pos3v = self.__cut(field=pos3v, pos=(line4, column4), length=4, horizontal=False, targetsize=3,
targethor=False)
pos2h = self.__cut(field=pos2h, pos=(line4, column4), length=4, horizontal=False, targetsize=2,
targethor=True)
pos2v = self.__cut(field=pos2v, pos=(line4, column4), length=4, horizontal=False, targetsize=2,
targethor=False)
# Place size 3 ships
for sh in range(2):
if self.__random.randint(0, 1):
line3, column3 = self.__randompos(pos3h)
exec('self.ship3_' + str(sh + 1) + ' = Ship(bow=(' + str(line3) + ', ' + str(column3) + '),\
horizontal=True, length=3)')
field[line3][column3: column3 + 3] = '***'
pos3h = self.__cut(field=pos3h, pos=(line3, column3), length=3, horizontal=True, targetsize=3,
targethor=True)
pos3v = self.__cut(field=pos3v, pos=(line3, column3), length=3, horizontal=True, targetsize=3,
targethor=False)
pos2h = self.__cut(field=pos2h, pos=(line3, column3), length=3, horizontal=True, targetsize=2,
targethor=True)
pos2v = self.__cut(field=pos2v, pos=(line3, column3), length=3, horizontal=True, targetsize=2,
targethor=False)
else:
line3, column3 = self.__randompos(pos3v)
exec('self.ship3_' + str(sh + 1) + ' = Ship(bow=(' + str(line3) + ', ' + str(column3) + '),\
horizontal=False, length=3)')
for l in range(line3, line3 + 3):
field[l][column3] = '*'
pos3h = self.__cut(field=pos3h, pos=(line3, column3), length=3, horizontal=False, targetsize=3,
targethor=True)
pos3v = self.__cut(field=pos3v, pos=(line3, column3), length=3, horizontal=False, targetsize=3,
targethor=False)
pos2h = self.__cut(field=pos2h, pos=(line3, column3), length=3, horizontal=False, targetsize=2,
targethor=True)
pos2v = self.__cut(field=pos2v, pos=(line3, column3), length=3, horizontal=False, targetsize=2,
targethor=False)
# Place size 2 ships:
for sh in range(3):
if self.__random.randint(0, 1):
line2, column2 = self.__randompos(pos2h)
exec('self.ship2_' + str(sh + 1) + ' = Ship(bow=(' + str(line2) + ', ' + str(column2) + '),\
horizontal=True, length=2)')
field[line2][column2: column2 + 2] = '**'
pos2h = self.__cut(field=pos2h, pos=(line2, column2), length=2, horizontal=True, targetsize=2,
targethor=True)
pos2v = self.__cut(field=pos2v, pos=(line2, column2), length=2, horizontal=True, targetsize=2,
targethor=False)
else:
line2, column2 = self.__randompos(pos2v)
exec('self.ship2_' + str(sh + 1) + ' = Ship(bow=(' + str(line2) + ', ' + str(column2) + '),\
horizontal=False, length=2)')
for l in range(line2, line2 + 2):
field[l][column2] = '*'
pos2h = self.__cut(field=pos2h, pos=(line2, column2), length=2, horizontal=False, targetsize=2,
targethor=True)
pos2v = self.__cut(field=pos2v, pos=(line2, column2), length=2, horizontal=False, targetsize=2,
targethor=False)
def __init__(self):
self.__field_wos = [list('__________') for _ in range(10)]
self.__generate()
self.ships = (self.ship4, self.ship3_1, self.ship3_2, self.ship2_1, self.ship2_2, self.ship2_3)
self.__field_ws = self.field_with_ships()
def field_with_ships(self):
field = [list('__________') for _ in range(10)]
for ship in self.ships:
if ship.horizontal:
field[ship.bow[0]][ship.bow[1]:ship.bow[1] + ship.length] = ['0' for _ in range(ship.length)]
else:
for l in range(ship.length):
field[ship.bow[0] + l][ship.bow[1]] = '0'
for line in range(10):
for column in range(10):
if self.__field_wos[line][column] != '_':
field[line][column] = self.__field_wos[line][column]
return field
def field_without_ships(self):
return self.__field_wos
def shoot_at(self, tup):
for ship in self.ships:
hit = ship.shoot_at(tup)
char = '+'
if hit == 0:
continue
elif hit in (1, 3):
char = 'X'
break
elif hit == 2:
return 2
self.__field_wos[tup[0]][tup[1]] = char
if char == '+':
return 0
return hit
@staticmethod
def tostring(field):
return '\n'.join(list(map(lambda x: ' '.join(x), field)))
class Player:
def __init__(self, name):
self.__name = name
class Game:
def __init__(self, name1, name2):
self.__field1 = Field()
self.__field2 = Field
self.__player1 = Player(name1)
self.__player2 = Player(name2)
self.__current_player = 1
@staticmethod
def read_position(pos):
alph = list('ABCDEFGHIJ')
return alph.find(pos[1]), int(pos[2])
myfield = Field()
print(myfield.tostring(myfield.field_with_ships()))