#2048 用python实现

import random

import math

import os

global score

score = 0

def start():#开始

a = [[0 for i in range(4)] for i in range(4)] #构造一个4*4的列表

i = random.randint(0,3)

j = random.randint(0,3)

p2 = random.random()

if p2>0.9: a[i][j] = 4 #有0.9几率出现2

else: a[i][j] = 2

display(a)

def display(a):

os.system('cls')

global score

if (notlose):

print('现在你的分数：',score)

for i in range(4):

for j in range(4):

print("%6s" % a[i][j] , end = '')

print()

action = input('请输入移动方向。输入wsad分别表示上下左右。请注意调成小写模式。')

move(action,a)

else:

print('没有可以用的数字。游戏结束。你得了',score,'分')

def move(action,a):

if action == 'w':

up(a)

elif action == 's':

down(a)

elif action == 'a':

left(a)

elif action == 'd':

right(a)

else:

print('非法操作。')

display(a)

def left(a):

global score

for i in range(0,4):

for j in range(3,0,-1):

#print('test : a[' ,i,'][', j,'] = ' ,a[i][j])

if a[i][j-1] == 0:

a[i][j-1] = a[i][j]

a[i][j] = 0

elif a[i][j-1] == a[i][j]:

a[i][j-1] = 2 * a[i][j]

a[i][j] = 0

score +=a[i][j-1]

newnum(a)

def down(a):

global score

for j in range(0,4):

for i in range(0,3):

#print('test : a[' ,i,'][', j,'] = ' ,a[i][j])

if a[i+1][j] == 0:

a[i+1][j] = a[i][j]

a[i][j] = 0

elif a[i+1][j] == a[i][j]:

a[i+1][j] = 2 * a[i][j]

a[i][j] = 0

score +=a[i+1][j]

newnum(a)

def up(a):

global score

for j in range(0,4):

for i in range(3,0,-1):

#print('test : a[' ,i,'][', j,'] = ' ,a[i][j])

if a[i-1][j] == 0:

a[i-1][j] = a[i][j]

a[i][j] = 0

elif a[i-1][j] == a[i][j]:

a[i-1][j] = 2 * a[i][j]

a[i][j] = 0

score +=a[i-1][j]

newnum(a)

def right(a):

global score

for i in range(0,4):

for j in range(0,3):

#print('test : a[' ,i,'][', j,'] = ' ,a[i][j])

if a[i][j+1] == 0:

a[i][j+1] = a[i][j]

a[i][j] = 0

elif a[i][j+1] == a[i][j]:

a[i][j+1] = 2 * a[i][j]

a[i][j] = 0

score +=a[i][j+1]

newnum(a)

def newnum(a):

while (1):

i = random.randint(0,3)

j = random.randint(0,3)

if a[i][j] == 0:

a[i][j] = random.choice([2,2,2,2,2,2,2,2,2,4])

break

display(a)

def notlose(a):

for i in range(3):

for j in range(3):

if a[j][i] == a[j][i+1]:

return True

if a[j][i] == a[j+1][i]:

return True

return False

start()