上面是實現的截圖,廢話不說,直接開始說一下代碼
pos = {
'UP': (-1,0),
'DOWN':(+1,0),
'LEFT':(0,-1),
'RIGHT':(0,+1),
}
current = 'RIGHT'
snake = [[1,1],[1,2],[1,3],[1,4],[1,5]] #ex: [[1,1],[1,2],[1,3]] [y,x]
head = snake[-1]
snake_speed = 0.1
rany, ranx = -1, -1
來一些數據的初始化,蛇用列表表示,蛇的頭的是列表的最後一項,速度用time.sleep()表示,速度越小,越快
def isover(head):
if snake.count(head) > 1: #碰到自己身體
return True
if (head[0] == y-1) or (head[1] == x-1) or (head[0] == 0) or (head[1] == 0): #碰到牆
return True
return False
判定游戲是否結束,碰到自己身體結束或者碰到牆結束
def randomyx():
ranflag = False
while ranflag is False:
rany, ranx = random.randint(1,y-2) , random.randint(1,x-2)
if [rany,ranx] not in snake:
ranflag = True
隨機生成貪吃蛇的點,注意:生成的點:需在框內而且不能在蛇的身上
while isover(head) is False:
draw()
head = [ head[0] + pos[current][0] , head[1] + pos[current][1]]
snake.append(head)
if head[0] == rany and head[1] == ranx:
randomyx()
snake_speed = snake_speed - 0.01
else:
snake.pop(0)
time.sleep(snake_speed)
上面是核心的邏輯代碼,主要思想是:
1.只要蛇沒有吃到東西,就頭加入進去,尾掉(形成蛇走步的感覺);只要蛇吃到了東西,就頭加進來,尾不出去(形成蛇長大的感覺) <— 典型隊列
2.然後考慮current <-- 當前蛇走的方向,如何去改變
這裡首先就考慮是一個異步的情形!利用異步監聽鼠標時間!
t1 = threading.Thread(target=listening, args=(head,), name='listenkeyboard')
t1.start()
def listening(head):
while True:
c = stdscr.getch()
if c == curses.KEY_UP and current != 'DOWN':
current = 'UP'
elif c == curses.KEY_DOWN and current != 'UP':
current = 'DOWN'
elif c == curses.KEY_LEFT and current != 'RIGHT':
current = 'LEFT'
elif c == curses.KEY_RIGHT and current != 'LEFT':
current = 'RIGHT'
這裡需要注意的是: 在當前方向為上的時候,不能按下—> 按了蛇不就自己撞自己了嘛~
寫完主要邏輯,之後 美化以下界面->
curses.start_color() #開啟顏色
curses.init_pair(1, curses.COLOR_RED, curses.COLOR_RED)#定義點的顏色
curses.init_pair(2, curses.COLOR_BLUE, curses.COLOR_BLUE) #定義蛇的顏色
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for si in snake:
stdscr.addstr(si[0],si[1],'@',curses.color_pair(2))
stdscr.addstr(rany,ranx,' ',curses.color_pair(1))
這樣,一個貪吃蛇小游戲就完成了,下面是實現的全部代碼,python3 snake.py,自己玩一下吧~~
import time,curses,random,threading
pos = {
'UP': (-1,0),
'DOWN':(+1,0),
'LEFT':(0,-1),
'RIGHT':(0,+1),
}
current = 'RIGHT'
snake = [[1,1],[1,2],[1,3],[1,4],[1,5]] #ex: [[1,1],[1,2],[1,3]] [y,x]
head = snake[-1]
snake_speed = 0.1
rany, ranx = -1, -1
def isover(head):
if snake.count(head) > 1: #碰到自己身體
return True
if (head[0] == y-1) or (head[1] == x-1) or (head[0] == 0) or (head[1] == 0): #碰到牆
return True
return False
def randomyx():
global rany,ranx
ranflag = False
while ranflag is False:
rany, ranx = random.randint(1,y-2) , random.randint(1,x-2)
if [rany,ranx] not in snake:
ranflag = True
def draw():
stdscr.erase()
stdscr.border()
for si in snake:
stdscr.addstr(si[0],si[1],'@',curses.color_pair(2))
stdscr.addstr(rany,ranx,' ',curses.color_pair(1))
stdscr.refresh()
def listening(head):
global current
while True:
c = stdscr.getch()
if c == curses.KEY_UP and current != 'DOWN':
current = 'UP'
elif c == curses.KEY_DOWN and current != 'UP':
current = 'DOWN'
elif c == curses.KEY_LEFT and current != 'RIGHT':
current = 'LEFT'
elif c == curses.KEY_RIGHT and current != 'LEFT':
current = 'RIGHT'
def loop(stdscr):
global head,snake_speed
randomyx()
t1 = threading.Thread(target=listening, args=(head,), name='listenkeyboard')
t1.start()
while isover(head) is False:
draw()
head = [ head[0] + pos[current][0] , head[1] + pos[current][1]]
snake.append(head)
if head[0] == rany and head[1] == ranx:
randomyx()
snake_speed = snake_speed - 0.01
else:
snake.pop(0)
time.sleep(snake_speed)
stdscr = curses.initscr()
curses.noecho() #不輸出- -
curses.cbreak() #立刻讀取:暫不清楚- -
curses.start_color() #開啟顏色
curses.init_pair(1, curses.COLOR_RED, curses.COLOR_RED)#定義點的顏色
curses.init_pair(2, curses.COLOR_BLUE, curses.COLOR_BLUE) #定義蛇的顏色
#init_pair(n,f,b)修改顏色對n，讓f為前景色，b為背景色。顏色對0天生的黑白色，不允許改。
stdscr.keypad(1) #開啟keypad
stdscr.border()
curses.curs_set(0)
(y,x) = stdscr.getmaxyx()
curses.wrapper(loop)
curses.endwin()
