[Python] 纯文本查看 复制代码
#导入库函数
#添加了空格暂停开始
#添加了超级食物,吃了5个食物后会有三分之2的可能生成一个超级食物,超级食物吃了可能加分或减分,但是加分可能性高些,超级食物不吃的话5秒后消失
#添加了长按按钮增加蛇的速度
from tkinter import *
import random
#从Frame派生一个snake类,这是所有widget的父容器
class snake(Frame):
def __init__(self, master=None):
Frame.__init__(self, master)
self.stop=-1 #暂停状态为-1(没有暂停),1为暂停
self.stopid=-1
self.died=0 #玩家是否死亡
self.score=0 #得分
self.body = [(0,2),[0,1],[0,0]] #蛇的身体
self.bodyid = []
self.lockey=0 #按下时候锁定键盘
self.pressnum=0
self.food = [ -1, -1 ] #食物坐标
self.foodid = -1
self.bigfood=[-1,-1] #奖励食物的坐标
self.bigfoodid=-1
self.bigfoodflg=0 #奖励标记
self.bigfoodtimeout=0 #奖励超时
self.gridcount = 25 #地图大小
self.size = 500 #屏幕大小
self.di = 3 #方向
self.speed = 300 #速度(越小越快-隔多少毫秒走一格,刻度是ms)
self.oldspeed=self.speed #旧的速度
self.top = self.winfo_toplevel() #窗口置顶显示
self.top.resizable(False, False) #不可调节大小
self.grid() #grid布局
self.canvas = Canvas(self)
self.canvas.grid()
self.canvas.config(width=self.size, height=self.size,relief=RIDGE) #确定窗口大小
self.drawgrid() #画地图
s = self.size/self.gridcount #单元大小
id = self.canvas.create_oval(self.body[0][0]*s,self.body[0][1]*s,
(self.body[0][0]+1)*s, (self.body[0][1]+1)*s, fill="yellow",outline="white") #绘制初始蛇头
self.bodyid.insert(0, id)
for i in range(1,len(self.body)):
id = self.canvas.create_oval(self.body[i][0]*s,self.body[i][1]*s,
(self.body[i][0]+1)*s, (self.body[i][1]+1)*s, fill="green",outline="green") #绘制初始蛇体
self.bodyid.append(id)
self.scoreid=self.canvas.create_text(self.size-50,10, # 绘制初始分数
text = 'score: '+str(self.score)
,fill = 'black')
self.bind_all("<KeyPress>", self.keypress) #绑定按下时的按键
self.bind_all("<KeyRelease>", self.keyrelease) #绑定按键
self.drawfood() #绘制食物
self.after(self.speed, self.drawsnake) #定时执行drawsnake函数
def drawgrid(self): #绘制地图
s = self.size/self.gridcount
for i in range(0, self.gridcount+1):
self.canvas.create_line(i*s, 0, i*s, self.size,fill="#ccaacc") #画地图竖着的线
self.canvas.create_line(0, i*s, self.size, i*s,fill="#ccaacc") #画地图横着的线
def drawsnake(self): #绘制蛇体
if self.died==1: #死亡跳出
return
if self.stop==1:
if self.stopid==-1:
self.stopid=self.canvas.create_text(self.size/2,self.size/2-20,
text = '暂停中,点击空格继续...'
,fill = '#238C23',font=font.Font(size=22))
self.after(self.speed, self.drawsnake)
return
else:
if self.stopid!=-1:
self.canvas.delete(self.stopid)
self.stopid=-1
self.lockey=0 #解锁按键
self.drawscore()
s = self.size/self.gridcount
head = self.body[0]
new = [head[0], head[1]]
if self.di == 1:
new[1] = (head[1]-1)
elif self.di == 2:
new[0] = (head[0]+1)
elif self.di == 3:
new[1] = (head[1]+1)
else:
new[0] = (head[0]-1)
next = ( new[0], new[1] )
area=[] #area是地图界限
for i in range(self.gridcount):
for j in range(self.gridcount):
area.append((i,j))
if next in self.body or next not in area: #撞到自己或者超出界限
self.die()
elif next == (self.food[0], self.food[1]):
self.bigfoodflg+=1 #食物奖励标记+1
self.score+=int(len(self.body)/5)+1 #增加得分(难度越高得分越多)
self.body.insert(0, next)
self.canvas.itemconfig(self.foodid,fill="green",outline="green") #更新吃掉的食物颜色变为身体颜色
self.canvas.itemconfig(self.bodyid[0],fill="green",outline="green") #更新身体颜色
self.bodyid.insert(0, self.foodid)
self.drawfood()
if self.speed>100 and self.score%5==0: #随着难度速度提高
self.speed-=50
self.oldspeed=self.speed
elif next == (self.bigfood[0], self.bigfood[1]): #吃到奖励
self.score+=random.randrange(-2,5) #一定几率减分
self.canvas.delete(self.bigfoodid) #移除奖励食物
self.bigfood=[-1,-1] #奖励食物的坐标
self.bigfoodid=-1
self.bigfoodtimeout=0
else:
self.canvas.itemconfig(self.bodyid[0],fill="green",outline="green") #更新身体颜色
tail = self.body.pop()
id = self.bodyid.pop()
self.canvas.move(id, (next[0]-tail[0])*s, (next[1]-tail[1])*s)
self.body.insert(0, next)
self.bodyid.insert(0, id)
self.canvas.itemconfig(id,fill="yellow",outline="white") #更新头部颜色
if(self.bigfoodid!=-1):
self.bigfoodtimeout+=self.speed
if(self.bigfoodtimeout>5000): #5秒不吃嗝屁
self.canvas.delete(self.bigfoodid) #移除奖励食物
self.bigfood=[-1,-1] #奖励食物的坐标
self.bigfoodid=-1
self.bigfoodtimeout=0
self.after(self.speed, self.drawsnake)
def drawscore(self): #绘制分数
self.canvas.delete(self.scoreid)
self.scoreid=self.canvas.create_text(self.size-50,10, # 使用create_text方法绘制文字
text = 'score: '+str(self.score) # 所绘制文字的内容
,fill = 'black') # 所绘制文字的颜色为灰色
def drawfood(self): #绘制食物
s = self.size/self.gridcount
if(self.bigfoodflg==5):#如果吃到了第五个食物
self.bigfoodflg=0 #标记清零
r=random.randrange(0,3) #可能为0,1,2
if(r!=0): #三分之二的可能产生奖励
x = random.randrange(0, self.gridcount)
y = random.randrange(0, self.gridcount)
while((x, y) in self.body or (x,y)==self.food): #确保食物和蛇体不冲突
x = random.randrange(0, self.gridcount)
y = random.randrange(0, self.gridcount)
id = self.canvas.create_oval(x*s-2, y*s-2,(x+1)*s+2, (y+1)*s+2, fill="yellow",outline="blue")
self.bigfood[0] = x
self.bigfood[1] = y
self.bigfoodid = id
x = random.randrange(0, self.gridcount)
y = random.randrange(0, self.gridcount)
while (x, y) in self.body: #确保食物和蛇体不冲突
x = random.randrange(0, self.gridcount)
y = random.randrange(0, self.gridcount)
#id = self.canvas.create_rectangle(x*s,y*s, (x+1)*s, (y+1)*s, fill="yellow")
id = self.canvas.create_oval(x*s, y*s,(x+1)*s, (y+1)*s, fill="blue",outline="blue")
self.food[0] = x
self.food[1] = y
self.foodid = id
def die(self): #死亡函数
if len(self.bodyid)<=0:
return
if self.died==1: #死亡动画
if len(self.bodyid)>0:
self.canvas.delete(self.bodyid.pop())
self.after(230, self.die)
else:
self.died=1 #标记玩家已经死亡
self.after(self.speed, self.drawsnake)
self.canvas.create_text(self.size/2,self.size/2-20, # 使用create_text方法绘制文字
text = '最终得分: '+str(self.score) # 所绘制文字的内容
,fill = 'black' # 所绘制文字的颜色为灰色
,font=font.Font(size=34)) # 设置字体大小
self.after(230, self.die)
def keyrelease(self, event): #按键响应
self.pressnum=0
self.speed = self.oldspeed
if event.keysym == "space": #空格
self.stop=0-self.stop #反转暂停状态
return
def keypress(self, event):
if self.died==1 or self.stop==1: #如果玩家死亡或者处于暂停,返回
return
if (event.keysym == "Up" or event.keysym.upper()=="W") and self.di != 3 and self.lockey==0: #如果玩家按上并且玩家正在前进的方向不是下
self.di = 1 #刷新方向为上
self.lockey=1 #锁键,防止撞入自身
elif (event.keysym == "Right" or event.keysym.upper()=="D") and self.di !=4 and self.lockey==0: #按右且不往左走
self.di = 2 #刷新方向为右
self.lockey=1
elif (event.keysym == "Down" or event.keysym.upper()=="S") and self.di != 1 and self.lockey==0: #按下且不往上走
self.di = 3 #刷新方向为下
self.lockey=1
elif (event.keysym == "Left" or event.keysym.upper()=="A") and self.di != 2 and self.lockey==0: #按左且不往右走
self.di = 4 #刷新方向为左
self.lockey=1
self.pressnum+=1
if(self.pressnum<2):
return
else:
self.lockey=0
self.pressnum=0
#按键响应-按下时候加速
if (event.keysym == "Up" or event.keysym.upper()=="W") and self.di == 1:
self.speed=90
if (event.keysym == "Right" or event.keysym.upper()=="D") and self.di ==2:
self.speed=90
if (event.keysym == "Down" or event.keysym.upper()=="S") and self.di == 3:
self.speed=90
if (event.keysym == "Left" or event.keysym.upper()=="A") and self.di == 4:
self.speed=90
app = snake()
app.master.title("贪食蛇")
app.mainloop()
发表于 2023-3-11 08:48
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发表于 2023-2-15 21:44
