pygame实现俄罗斯方块游戏（基础篇2）

脚本专栏 2024/11/5 佚名

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圆月山庄资源网 Design By www.vgjia.com

接上章《pygame实现俄罗斯方块游戏（基础篇1）》继续写俄罗斯方块游戏

五、计算方块之间的碰撞

在Panel类里增加函数

def check_overlap(self, diffx, diffy):
 for x,y in self.moving_block.get_rect_arr():
  for rx,ry in self.rect_arr:
  if x+diffx==rx and y+diffy==ry:
   return True
 return False

修改move_block函数的判断，增加check_overlap函数检测

def move_block(self):
 if self.moving_block is None: create_move_block()
 if self.moving_block.can_move(0,1) and not self.check_overlap(0,1): 
  self.moving_block.move(0,1)
 else:
  self.add_block(self.moving_block)
  self.create_move_block()

现在的效果是方块可以堆叠了

六、键盘控制左右移动

导入变量

from pygame.locals import KEYDOWN,K_LEFT,K_RIGHT,K_UP,K_DOWN

Panel类里增加一个控制移动方块的函数

def control_block(self, diffx, diffy):
 if self.moving_block.can_move(diffx,diffy) and not self.check_overlap(diffx, diffy):
  self.moving_block.move(diffx,diffy)

鼠标事件监听处做下键盘的响应

if event.type == KEYDOWN:
  if event.key == K_LEFT: main_panel.control_block(-1,0)
  if event.key == K_RIGHT: main_panel.control_block(1,0)
  if event.key == K_UP: pass # 变形过会实现
  if event.key == K_DOWN: main_panel.control_block(0,1)

由于Block类的can_move函数没有实现左右移动的判断，所以需要再对can_move
增加左右边界的处理

def can_move(self,xdiff,ydiff):
 for x,y in self.rect_arr:
  if y+ydiff>=20: return False
  if x+xdiff<0 or x+xdiff>=10: return False
 return True

现在，左右的移动也正常了，效果图如下

贴下目前的代码

# -*- coding=utf-8 -*-
import random
import pygame
from pygame.locals import KEYDOWN,K_LEFT,K_RIGHT,K_UP,K_DOWN

class Panel(object): # 用于绘制整个游戏窗口的版面
 rect_arr=[] # 已经落底下的方块
 moving_block=None # 正在落下的方块
 def __init__(self,bg, block_size, position):
 self._bg=bg;
 self._x,self._y,self._width,self._height=position
 self._block_size=block_size
 self._bgcolor=[0,0,0]
 
 def add_block(self,block):
 for rect in block.get_rect_arr():
  self.rect_arr.append(rect)

 def create_move_block(self):
 block = create_block()
 block.move(5-2,-2) # 方块挪到中间 
 self.moving_block=block

 def check_overlap(self, diffx, diffy, check_arr=None):
 if check_arr is None: check_arr = self.moving_block.get_rect_arr()
 for x,y in check_arr:
  for rx,ry in self.rect_arr:
  if x+diffx==rx and y+diffy==ry:
   return True
 return False

 def control_block(self, diffx, diffy):
 if self.moving_block.can_move(diffx,diffy) and not self.check_overlap(diffx, diffy):
  self.moving_block.move(diffx,diffy)

 def move_block(self):
 if self.moving_block is None: create_move_block()
 if self.moving_block.can_move(0,1) and not self.check_overlap(0,1): 
  self.moving_block.move(0,1)
 else:
  self.add_block(self.moving_block)
  self.create_move_block()

 def paint(self):
 mid_x=self._x+self._width/2
 pygame.draw.line(self._bg,self._bgcolor,[mid_x,self._y],[mid_x,self._y+self._height],self._width) # 用一个粗线段来填充背景
 
 # 绘制已经落底下的方块
 bz=self._block_size
 for rect in self.rect_arr:
  x,y=rect
  pygame.draw.line(self._bg,[0,0,255],[self._x+x*bz+bz/2,self._y+y*bz],[self._x+x*bz+bz/2,self._y+(y+1)*bz],bz)
  pygame.draw.rect(self._bg,[255,255,255],[self._x+x*bz,self._y+y*bz,bz+1,bz+1],1)
 
 # 绘制正在落下的方块
 if self.move_block:
  for rect in self.moving_block.get_rect_arr():
  x,y=rect
  pygame.draw.line(self._bg,[0,0,255],[self._x+x*bz+bz/2,self._y+y*bz],[self._x+x*bz+bz/2,self._y+(y+1)*bz],bz)
  pygame.draw.rect(self._bg,[255,255,255],[self._x+x*bz,self._y+y*bz,bz+1,bz+1],1)


class Block(object):
 def __init__(self):
 self.rect_arr=[]

 def get_rect_arr(self): # 用于获取方块种的四个矩形列表
 return self.rect_arr

 def move(self,xdiff,ydiff): # 用于移动方块的方法
 self.new_rect_arr=[]
 for x,y in self.rect_arr:
  self.new_rect_arr.append((x+xdiff,y+ydiff))
 self.rect_arr=self.new_rect_arr

 def can_move(self,xdiff,ydiff):
 for x,y in self.rect_arr:
  if y+ydiff>=20: return False
  if x+xdiff<0 or x+xdiff>=10: return False
 return True

class LongBlock(Block):
 def __init__(self, n=None): # 两种形态
 super(LongBlock, self).__init__()
 if n is None: n=random.randint(0,1)
 self.rect_arr=[(1,0),(1,1),(1,2),(1,3)] if n==0 else [(0,2),(1,2),(2,2),(3,2)]

class SquareBlock(Block): # 一种形态
 def __init__(self, n=None):
 super(SquareBlock, self).__init__()
 self.rect_arr=[(1,1),(1,2),(2,1),(2,2)]


class ZBlock(Block): # 两种形态
 def __init__(self, n=None):
 super(ZBlock, self).__init__()
 if n is None: n=random.randint(0,1)
 self.rect_arr=[(2,0),(2,1),(1,1),(1,2)] if n==0 else [(0,1),(1,1),(1,2),(2,2)]

class SBlock(Block): # 两种形态
 def __init__(self, n=None):
 super(SBlock, self).__init__()
 if n is None: n=random.randint(0,1)
 self.rect_arr=[(1,0),(1,1),(2,1),(2,2)] if n==0 else [(0,2),(1,2),(1,1),(2,1)]

class LBlock(Block): # 四种形态
 def __init__(self, n=None):
 super(LBlock, self).__init__()
 if n is None: n=random.randint(0,3)
 if n==0: self.rect_arr=[(1,0),(1,1),(1,2),(2,2)]
 elif n==1: self.rect_arr=[(0,1),(1,1),(2,1),(0,2)]
 elif n==2: self.rect_arr=[(0,0),(1,0),(1,1),(1,2)]
 else: self.rect_arr=[(0,1),(1,1),(2,1),(2,0)]

class JBlock(Block): # 四种形态
 def __init__(self, n=None):
 super(JBlock, self).__init__()
 if n is None: n=random.randint(0,3)
 if n==0: self.rect_arr=[(1,0),(1,1),(1,2),(0,2)]
 elif n==1: self.rect_arr=[(0,1),(1,1),(2,1),(0,0)]
 elif n==2: self.rect_arr=[(2,0),(1,0),(1,1),(1,2)]
 else: self.rect_arr=[(0,1),(1,1),(2,1),(2,2)]

class TBlock(Block): # 四种形态
 def __init__(self, n=None):
 super(TBlock, self).__init__()
 if n is None: n=random.randint(0,3)
 if n==0: self.rect_arr=[(0,1),(1,1),(2,1),(1,2)]
 elif n==1: self.rect_arr=[(1,0),(1,1),(1,2),(0,1)]
 elif n==2: self.rect_arr=[(0,1),(1,1),(2,1),(1,0)]
 else: self.rect_arr=[(1,0),(1,1),(1,2),(2,1)]
 

def create_block():
 n = random.randint(0,19)
 if n==0: return SquareBlock(n=0)
 elif n==1 or n==2: return LongBlock(n=n-1)
 elif n==3 or n==4: return ZBlock(n=n-3)
 elif n==5 or n==6: return SBlock(n=n-5)
 elif n>=7 and n<=10: return LBlock(n=n-7)
 elif n>=11 and n<=14: return JBlock(n=n-11)
 else: return TBlock(n=n-15)

def run():
 pygame.init()
 space=30
 main_block_size=30
 main_panel_width=main_block_size*10
 main_panel_height=main_block_size*20
 screencaption = pygame.display.set_caption('Tetris')
 screen = pygame.display.set_mode((main_panel_width+160+space*3,main_panel_height+space*2)) #设置窗口长宽
 main_panel=Panel(screen,main_block_size,[space,space,main_panel_width,main_panel_height])

 pygame.key.set_repeat(200, 30)
 main_panel.create_move_block()

 diff_ticks = 300 # 移动一次蛇头的事件，单位毫秒
 ticks = pygame.time.get_ticks() + diff_ticks

 while True:
 for event in pygame.event.get():
  if event.type == pygame.QUIT:
   pygame.quit()
   exit()
  if event.type == KEYDOWN:
  if event.key == K_LEFT: main_panel.control_block(-1,0)
  if event.key == K_RIGHT: main_panel.control_block(1,0)
  if event.key == K_UP: pass # 变形过会实现
  if event.key == K_DOWN: main_panel.control_block(0,1)
 
 screen.fill((100,100,100)) # 将界面设置为灰色
 main_panel.paint() # 主面盘绘制

 pygame.display.update() # 必须调用update才能看到绘图显示

 if pygame.time.get_ticks() >= ticks:
  ticks+=diff_ticks
  main_panel.move_block()

run()

七、控制变形

变形的实现，我们对每个方块子类的初始化函数稍作修改，将获取形状做一个独立的get_shape函数，并且给每个子类增加一个变量用于记录当前形态id，用一个变量用于标识每种方块的形态数量，以T型为例，修改后代码如下

class TBlock(Block): # 四种形态
 shape_id=0
 shape_num=4
 def __init__(self, n=None):
 super(TBlock, self).__init__()
 if n is None: n=random.randint(0,3)
 self.shape_id=n
 self.rect_arr=self.get_shape()

 def get_shape(self):
 if self.shape_id==0: return [(0,1),(1,1),(2,1),(1,2)]
 elif self.shape_id==1: return [(1,0),(1,1),(1,2),(0,1)]
 elif self.shape_id==2: return [(0,1),(1,1),(2,1),(1,0)]
 else: return [(1,0),(1,1),(1,2),(2,1)]

这样我们在Block父类里可以加一个change函数，用于变换至下一形态，由于变化时要保持原来的移动位置，我们增加sx，sy两个变量将方块移动过的位置存着，便于在变化时使用

class Block(object):
 sx=0
 sy=0
 def __init__(self):
 self.rect_arr=[]

 def get_rect_arr(self): # 用于获取方块种的四个矩形列表
 return self.rect_arr

 def move(self,xdiff,ydiff): # 用于移动方块的方法
 self.sx+=xdiff
 self.sy+=ydiff
 self.new_rect_arr=[]
 for x,y in self.rect_arr:
  self.new_rect_arr.append((x+xdiff,y+ydiff))
 self.rect_arr=self.new_rect_arr

 def can_move(self,xdiff,ydiff):
 for x,y in self.rect_arr:
  if y+ydiff>=20: return False
  if x+xdiff<0 or x+xdiff>=10: return False
 return True

 def change(self):
 self.shape_id+=1 # 下一形态
 if self.shape_id >= self.shape_num: 
  self.shape_id=0

 arr = self.get_shape()
 new_arr = []
 for x,y in arr:
  if x+self.sx<0 or x+self.sx>=10: # 变形不能超出左右边界
  self.shape_id -= 1
  if self.shape_id < 0: self.shape_id = self.shape_num - 1
  return None 

  new_arr.append([x+self.sx,y+self.sy])

 return new_arr

在Panel类里的再增加一个change函数，直接调用moving_block的change

def change_block(self):
 if self.moving_block:
  new_arr = self.moving_block.change()
  if new_arr and not self.check_overlap(0, 0, check_arr=new_arr): # 变形不能造成方块重叠
  self.moving_block.rect_arr=new_arr

最后将key_up事件的响应加入change_block的调用就好了

if event.key == K_UP: main_panel.change_block()

现在已经实现了，变形和移动了，方块基本可以正常下落了

八、方块的消除

这个计算主要是处理Panel类的rect_arr，如果数组中出现某一行有10个就符合消除条件，为简化计算，我们将这些矩形按y值存到一个数组中，便于计算

 def check_clear(self):
 tmp_arr = [[] for i in range(20)]
 # 先将方块按行存入数组
 for x,y in self.rect_arr:
  if y<0: return
  tmp_arr[y].append([x,y])

 clear_num=0
 clear_lines=set([])
 y_clear_diff_arr=[[] for i in range(20)]
 # 从下往上计算可以消除的行，并记录消除行后其他行的向下偏移数量
 for y in range(19,-1,-1):
  if len(tmp_arr[y])==10:
  clear_lines.add(y)
  clear_num += 1
  y_clear_diff_arr[y] = clear_num

 if clear_num>0:
  new_arr=[]
  # 跳过移除行，并将其他行做偏移
  for y in range(19,-1,-1):
  if y in clear_lines: continue
  tmp_row = tmp_arr[y]
  y_clear_diff=y_clear_diff_arr[y]
  for x,y in tmp_row:
   new_arr.append([x,y+y_clear_diff])
  
  self.rect_arr = new_arr

在Panel的move_block处增加check_clear的调用

def move_block(self):
 if self.moving_block is None: create_move_block()
 if self.moving_block.can_move(0,1) and not self.check_overlap(0,1): 
  self.moving_block.move(0,1)
 else:
  self.add_block(self.moving_block)
  self.check_clear()
  self.create_move_block()

现在游戏可以消除方块了

九、增加空格键使快速落下

快速落下可以快速调用Panel的move_block函数，我们在move_block函数增加一个返回值，用于标记使正常下移还是移到底部后新的方块

def move_block(self):
 if self.moving_block is None: create_move_block()
 if self.moving_block.can_move(0,1) and not self.check_overlap(0,1): 
  self.moving_block.move(0,1)
  return 1
 else:
  self.add_block(self.moving_block)
  self.check_clear()
  self.create_move_block()
  return 2

在键盘响应处增加键盘处理

if event.key == K_SPACE:
  while main_panel.move_block()==1: 
   pass

十、增加游戏结束判断

游戏结束同样可以在Panel类的move_block中处理，如果一个方块到底，并且消除进行后，发现有方块的y值小于0，那么一定是失败了
修改Panel类的move_block函数

 def move_block(self):
 if self.moving_block is None: create_move_block()
 if self.moving_block.can_move(0,1) and not self.check_overlap(0,1): 
  self.moving_block.move(0,1)
  return 1
 else:
  self.add_block(self.moving_block)
  self.check_clear()

  for x,y in self.rect_arr:
  if y<0: return 9 # 游戏失败
  self.create_move_block()
  return 2

增加一个变量记录游戏状态

game_state = 1 # 游戏状态1.表示正常 2.表示失败

计时器处修改程序

 if game_state == 1 and pygame.time.get_ticks() >= ticks:
  ticks+=diff_ticks
  if main_panel.move_block()==9: game_state = 2

鼠标键盘响应空格键中也增加一下判断

 if event.key == K_SPACE:
    flag = main_panel.move_block()
    while flag==1: 
     flag = main_panel.move_block()
    if flag == 9: game_state = 2

最后增加游戏结束文字的绘制

 if game_state == 2:
   myfont = pygame.font.Font(None,30)
   white = 255,255,255
   textImage = myfont.render("Game over", True, white)
   screen.blit(textImage, (160,190))

好了，现在会提示游戏结束了

最后附下目前的完整代码

# -*- coding=utf-8 -*-
import random
import pygame
from pygame.locals import KEYDOWN,K_LEFT,K_RIGHT,K_UP,K_DOWN,K_SPACE

class Panel(object): # 用于绘制整个游戏窗口的版面
 rect_arr=[] # 已经落底下的方块
 moving_block=None # 正在落下的方块
 def __init__(self,bg, block_size, position):
 self._bg=bg;
 self._x,self._y,self._width,self._height=position
 self._block_size=block_size
 self._bgcolor=[0,0,0]
 
 def add_block(self,block):
 for rect in block.get_rect_arr():
  self.rect_arr.append(rect)

 def create_move_block(self):
 block = create_block()
 block.move(5-2,-2) # 方块挪到中间 
 self.moving_block=block

 def check_overlap(self, diffx, diffy, check_arr=None):
 if check_arr is None: check_arr = self.moving_block.get_rect_arr()
 for x,y in check_arr:
  for rx,ry in self.rect_arr:
  if x+diffx==rx and y+diffy==ry:
   return True
 return False

 def control_block(self, diffx, diffy):
 if self.moving_block.can_move(diffx,diffy) and not self.check_overlap(diffx, diffy):
  self.moving_block.move(diffx,diffy)

 def change_block(self):
 if self.moving_block:
  new_arr = self.moving_block.change()
  if new_arr and not self.check_overlap(0, 0, check_arr=new_arr): # 变形不能造成方块重叠
  self.moving_block.rect_arr=new_arr

 def move_block(self):
 if self.moving_block is None: create_move_block()
 if self.moving_block.can_move(0,1) and not self.check_overlap(0,1): 
  self.moving_block.move(0,1)
  return 1
 else:
  self.add_block(self.moving_block)
  self.check_clear()

  for x,y in self.rect_arr:
  if y<0: return 9 # 游戏失败
  self.create_move_block()
  return 2

 def check_clear(self):
 tmp_arr = [[] for i in range(20)]
 # 先将方块按行存入数组
 for x,y in self.rect_arr:
  if y<0: return
  tmp_arr[y].append([x,y])

 clear_num=0
 clear_lines=set([])
 y_clear_diff_arr=[[] for i in range(20)]
 # 从下往上计算可以消除的行，并记录消除行后其他行的向下偏移数量
 for y in range(19,-1,-1):
  if len(tmp_arr[y])==10:
  clear_lines.add(y)
  clear_num += 1
  y_clear_diff_arr[y] = clear_num

 if clear_num>0:
  new_arr=[]
  # 跳过移除行，并将其他行做偏移
  for y in range(19,-1,-1):
  if y in clear_lines: continue
  tmp_row = tmp_arr[y]
  y_clear_diff=y_clear_diff_arr[y]
  for x,y in tmp_row:
   new_arr.append([x,y+y_clear_diff])
  
  self.rect_arr = new_arr


 def paint(self):
 mid_x=self._x+self._width/2
 pygame.draw.line(self._bg,self._bgcolor,[mid_x,self._y],[mid_x,self._y+self._height],self._width) # 用一个粗线段来填充背景
 
 # 绘制已经落底下的方块
 bz=self._block_size
 for rect in self.rect_arr:
  x,y=rect
  pygame.draw.line(self._bg,[0,0,255],[self._x+x*bz+bz/2,self._y+y*bz],[self._x+x*bz+bz/2,self._y+(y+1)*bz],bz)
  pygame.draw.rect(self._bg,[255,255,255],[self._x+x*bz,self._y+y*bz,bz+1,bz+1],1)
 
 # 绘制正在落下的方块
 if self.move_block:
  for rect in self.moving_block.get_rect_arr():
  x,y=rect
  pygame.draw.line(self._bg,[0,0,255],[self._x+x*bz+bz/2,self._y+y*bz],[self._x+x*bz+bz/2,self._y+(y+1)*bz],bz)
  pygame.draw.rect(self._bg,[255,255,255],[self._x+x*bz,self._y+y*bz,bz+1,bz+1],1)


class Block(object):
 sx=0
 sy=0
 def __init__(self):
 self.rect_arr=[]

 def get_rect_arr(self): # 用于获取方块种的四个矩形列表
 return self.rect_arr

 def move(self,xdiff,ydiff): # 用于移动方块的方法
 self.sx+=xdiff
 self.sy+=ydiff
 self.new_rect_arr=[]
 for x,y in self.rect_arr:
  self.new_rect_arr.append((x+xdiff,y+ydiff))
 self.rect_arr=self.new_rect_arr

 def can_move(self,xdiff,ydiff):
 for x,y in self.rect_arr:
  if y+ydiff>=20: return False
  if x+xdiff<0 or x+xdiff>=10: return False
 return True

 def change(self):
 self.shape_id+=1 # 下一形态
 if self.shape_id >= self.shape_num: 
  self.shape_id=0

 arr = self.get_shape()
 new_arr = []
 for x,y in arr:
  if x+self.sx<0 or x+self.sx>=10: # 变形不能超出左右边界
  self.shape_id -= 1
  if self.shape_id < 0: self.shape_id = self.shape_num - 1
  return None 

  new_arr.append([x+self.sx,y+self.sy])

 return new_arr

class LongBlock(Block):
 shape_id=0
 shape_num=2
 def __init__(self, n=None): # 两种形态
 super(LongBlock, self).__init__()
 if n is None: n=random.randint(0,1)
 self.shape_id=n
 self.rect_arr=self.get_shape()

 def get_shape(self):
 return [(1,0),(1,1),(1,2),(1,3)] if self.shape_id==0 else [(0,2),(1,2),(2,2),(3,2)]

class SquareBlock(Block): # 一种形态
 shape_id=0
 shape_num=1
 def __init__(self, n=None):
 super(SquareBlock, self).__init__()
 self.rect_arr=self.get_shape()

 def get_shape(self):
 return [(1,1),(1,2),(2,1),(2,2)]

class ZBlock(Block): # 两种形态
 shape_id=0
 shape_num=2
 def __init__(self, n=None):
 super(ZBlock, self).__init__()
 if n is None: n=random.randint(0,1)
 self.shape_id=n
 self.rect_arr=self.get_shape()

 def get_shape(self):
 return [(2,0),(2,1),(1,1),(1,2)] if self.shape_id==0 else [(0,1),(1,1),(1,2),(2,2)]

class SBlock(Block): # 两种形态
 shape_id=0
 shape_num=2
 def __init__(self, n=None):
 super(SBlock, self).__init__()
 if n is None: n=random.randint(0,1)
 self.shape_id=n
 self.rect_arr=self.get_shape()

 def get_shape(self):
 return [(1,0),(1,1),(2,1),(2,2)] if self.shape_id==0 else [(0,2),(1,2),(1,1),(2,1)]

class LBlock(Block): # 四种形态
 shape_id=0
 shape_num=4
 def __init__(self, n=None):
 super(LBlock, self).__init__()
 if n is None: n=random.randint(0,3)
 self.shape_id=n
 self.rect_arr=self.get_shape()

 def get_shape(self):
 if self.shape_id==0: return [(1,0),(1,1),(1,2),(2,2)]
 elif self.shape_id==1: return [(0,1),(1,1),(2,1),(0,2)]
 elif self.shape_id==2: return [(0,0),(1,0),(1,1),(1,2)]
 else: return [(0,1),(1,1),(2,1),(2,0)]

class JBlock(Block): # 四种形态
 shape_id=0
 shape_num=4
 def __init__(self, n=None):
 super(JBlock, self).__init__()
 if n is None: n=random.randint(0,3)
 self.shape_id=n
 self.rect_arr=self.get_shape()

 def get_shape(self):
 if self.shape_id==0: return [(1,0),(1,1),(1,2),(0,2)]
 elif self.shape_id==1: return [(0,1),(1,1),(2,1),(0,0)]
 elif self.shape_id==2: return [(2,0),(1,0),(1,1),(1,2)]
 else: return [(0,1),(1,1),(2,1),(2,2)]

class TBlock(Block): # 四种形态
 shape_id=0
 shape_num=4
 def __init__(self, n=None):
 super(TBlock, self).__init__()
 if n is None: n=random.randint(0,3)
 self.shape_id=n
 self.rect_arr=self.get_shape()

 def get_shape(self):
 if self.shape_id==0: return [(0,1),(1,1),(2,1),(1,2)]
 elif self.shape_id==1: return [(1,0),(1,1),(1,2),(0,1)]
 elif self.shape_id==2: return [(0,1),(1,1),(2,1),(1,0)]
 else: return [(1,0),(1,1),(1,2),(2,1)]
 
def create_block():
 n = random.randint(0,19)
 if n==0: return SquareBlock(n=0)
 elif n==1 or n==2: return LongBlock(n=n-1)
 elif n==3 or n==4: return ZBlock(n=n-3)
 elif n==5 or n==6: return SBlock(n=n-5)
 elif n>=7 and n<=10: return LBlock(n=n-7)
 elif n>=11 and n<=14: return JBlock(n=n-11)
 else: return TBlock(n=n-15)

def run():
 pygame.init()
 space=30
 main_block_size=30
 main_panel_width=main_block_size*10
 main_panel_height=main_block_size*20
 screencaption = pygame.display.set_caption('Tetris')
 screen = pygame.display.set_mode((main_panel_width+160+space*3,main_panel_height+space*2)) #设置窗口长宽
 main_panel=Panel(screen,main_block_size,[space,space,main_panel_width,main_panel_height])

 pygame.key.set_repeat(200, 30)
 main_panel.create_move_block()

 diff_ticks = 300 # 移动一次蛇头的事件，单位毫秒
 ticks = pygame.time.get_ticks() + diff_ticks

 game_state = 1 # 游戏状态1.表示正常 2.表示失败
 while True:
 for event in pygame.event.get():
  if event.type == pygame.QUIT:
   pygame.quit()
   exit()
  if event.type == KEYDOWN:
  if event.key == K_LEFT: main_panel.control_block(-1,0)
  if event.key == K_RIGHT: main_panel.control_block(1,0)
  if event.key == K_UP: main_panel.change_block()
  if event.key == K_DOWN: main_panel.control_block(0,1)
  if event.key == K_SPACE:
  flag = main_panel.move_block()
  while flag==1: 
   flag = main_panel.move_block()
  if flag == 9: game_state = 2
 
 screen.fill((100,100,100)) # 将界面设置为灰色
 main_panel.paint() # 主面盘绘制

 if game_state == 2:
  myfont = pygame.font.Font(None,30)
  white = 255,255,255
  textImage = myfont.render("Game over", True, white)
  screen.blit(textImage, (160,190))

 pygame.display.update() # 必须调用update才能看到绘图显示

 if game_state == 1 and pygame.time.get_ticks() >= ticks:
  ticks+=diff_ticks
  if main_panel.move_block()==9: game_state = 2 # 游戏结束

run()

今天先写到这，下章继续

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

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