pygame实现俄罗斯方块游戏（基础篇3）

上一章请点击查看：pygame实现俄罗斯方块游戏（基础篇2）

现在继续

一、给每个方块设置不同的颜色

根据代码这里可以判断正在下落的方块在那些Block子类里加一个属性最合适，而已经落下的方块颜色管理最合适的地方应该是修改在Panel类里的rect_arr
Block子类里的修改比较简单，以TBlock类为例，在__init__函数加一行

self.color=(255,0,0)

在Panel的paint函数里将代码

# 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)

中的

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)

改成

pygame.draw.line(self._bg,self.moving_block.color,[self._x+x*bz+bz/2,self._y+y*bz],[self._x+x*bz+bz/2,self._y+(y+1)*bz],bz)

已经下落的方块修改会麻烦一点，原来存在rect_arr里的是x,y，现在要增加一个颜色，直接改也是可以的，不过考虑到以后的扩展性，果断定义一个RectInfo类

class RectInfo(object):
 def __init__(self, x, y, color):
 self.x = x
 self.y = y
 self.color = color

将存入rect_arr时的代码修改为

def add_block(self,block):
 for x,y in block.get_rect_arr():
 self.rect_arr.append(RectInfo(x,y, block.color))

并将设计rect_arr做下修改即可

贴下目前的完整代码

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

class RectInfo(object):
 def __init__(self, x, y, color):
 self.x = x
 self.y = y
 self.color = color

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 x,y in block.get_rect_arr():
 self.rect_arr.append(RectInfo(x,y, block.color))

 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 rect_info in self.rect_arr:
 if x+diffx==rect_info.x and y+diffy==rect_info.y:
 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 rect_info in self.rect_arr:
 if rect_info.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 rect_info in self.rect_arr:
 if rect_info.y<0: return
 tmp_arr[rect_info.y].append(rect_info)

 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 rect_info in tmp_row:
 #new_arr.append([x,y+y_clear_diff])
 new_arr.append(RectInfo(rect_info.x, rect_info.y+y_clear_diff, rect_info.color))
 
 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_info in self.rect_arr:
 x=rect_info.x
 y=rect_info.y
 pygame.draw.line(self._bg,rect_info.color,[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,self.moving_block.color,[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()
 self.color=(50,180,50)

 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()
 self.color=(0,0,255)

 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()
 self.color=(30,200,200)

 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()
 self.color=(255,30,255)

 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()
 self.color=(200,200,30)

 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()
 self.color=(200,100,0)

 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()
 self.color=(255,0,0)

 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()

二、下一个方块

为便于下一方块的提示窗的绘制，我们定义一个类HintBox，用于管理下一方块和界面的绘制

class HintBox(object):
 next_block=None
 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 take_block(self):
 block = self.next_block
 if block is None: # 如果还没有方块，先产生一个
 block = create_block()
 
 self.next_block = create_block() # 产生下一个方块
 return 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) 
 bz=self._block_size
 # 绘制正在落下的方块
 if self.next_block:
 arr = self.next_block.get_rect_arr()
 minx,miny=arr[0]
 maxx,maxy=arr[0]
 for x,y in arr:
 if x<minx: minx=x
 if x>maxx: maxx=x
 if y<miny: miny=y
 if y>maxy: maxy=y
 w=(maxx-minx)*bz
 h=(maxy-miny)*bz
 # 计算使方块绘制在提示窗中心位置所需要的偏移像素
 cx=self._width/2-w/2-minx*bz-bz/2 
 cy=self._height/2-h/2-miny*bz-bz/2

 for rect in arr:
 x,y=rect
 pygame.draw.line(self._bg,self.next_block.color,[self._x+x*bz+cx+bz/2,self._y+cy+y*bz],[self._x+x*bz+cx+bz/2,self._y+cy+(y+1)*bz],bz)
 pygame.draw.rect(self._bg,[255,255,255],[self._x+x*bz+cx,self._y+y*bz+cy,bz+1,bz+1],1)

在Panel类里面增加一个属性

hint_box=None

将Panel类里面的

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

产生方块的方式，改为由hint_box产生

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

在run函数里增加初始化hint_box和设置main_panel的程序

hint_box=HintBox(screen,main_block_size,[main_panel_width+space+space,space,160,160])
main_panel.hint_box=hint_box

在游戏主循环增加下一方块提示窗的绘制

hint_box.paint() # 绘制下一个方块的提示窗

现在可以正常显示下一方块提示了

三、分数的计算

消除分数的计算方式为
1行 100分
2行 300分
3行 800分
4行 1600分
类似下一方块提示窗的设计，我们可以增加一个ScoreBox类

class ScoreBox(object):
 total_score = 0
 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 paint(self):
 myfont = pygame.font.Font(None,36)
 white = 255,255,255
 textImage = myfont.render('Score:%06d'%(self.total_score), True, white)
 self._bg.blit(textImage, (self._x,self._y))

然后在Panel增加score_box属性

score_box=None

定义一个全局的SCORE_MAP

SCORE_MAP=(100,300,800,1600)

在check_clear函数中，如果有方块消除，则执行

score = SCORE_MAP[clear_num-1]
self.score_box.total_score += score

在run主函数初始化score_box

score_box=ScoreBox(screen,main_block_size,[main_panel_width+space+space,160+space*2,160,160])
main_panel.score_box=score_box

并在游戏循环绘制score_box

score_box.paint() # 绘制总分

四、历史最高分

准备在当前目录用一个tetris.db的pickle文件保存

所以首先

import pickle,os

由于最高分可以借用ScoreBox在绘制当前分数时一起绘制，所以直接在ScoreBox增加一个最高分的属性和一个文件的定义

high_score = 0
db_file = 'tetris.db'

在ScoreBox的初始化函数里增加pickle的加载

if os.path.exists(self.db_file): self.high_score = pickle.load(open(self.db_file,'rb'))

在paint里增加下最高分的绘制

def paint(self):
 myfont = pygame.font.Font(None,36)
 white = 255,255,255
 textImage = myfont.render('High: %06d'%(self.high_score), True, white)
 self._bg.blit(textImage, (self._x,self._y))
 textImage = myfont.render('Score:%06d'%(self.total_score), True, white)
 self._bg.blit(textImage, (self._x,self._y+40))

将之前直接对ScoreBox的score的修改改为封装一个add_score的函数

def add_score(self, score):
 self.total_score += score
 if self.total_score > self.high_score:
 self.high_score=self.total_score
 pickle.dump(self.high_score, open(self.db_file,'wb+'))

在add_score函数里进行score的修改并做是否超过最高分的判断，如果超过则保存分数（当然也可以在游戏结束或关闭界面时判断和保存最高分，减少磁盘io）

看下效果图

贴下完整的程序

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

SCORE_MAP=(100,300,800,1600)

class RectInfo(object):
 def __init__(self, x, y, color):
 self.x = x
 self.y = y
 self.color = color

class HintBox(object):
 next_block=None
 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 take_block(self):
 block = self.next_block
 if block is None: # 如果还没有方块，先产生一个
 block = create_block()
 
 self.next_block = create_block() # 产生下一个方块
 return 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) 
 bz=self._block_size
 # 绘制正在落下的方块
 if self.next_block:
 arr = self.next_block.get_rect_arr()
 minx,miny=arr[0]
 maxx,maxy=arr[0]
 for x,y in arr:
 if x<minx: minx=x
 if x>maxx: maxx=x
 if y<miny: miny=y
 if y>maxy: maxy=y
 w=(maxx-minx)*bz
 h=(maxy-miny)*bz
 # 计算使方块绘制在提示窗中心位置所需要的偏移像素
 cx=self._width/2-w/2-minx*bz-bz/2 
 cy=self._height/2-h/2-miny*bz-bz/2

 for rect in arr:
 x,y=rect
 pygame.draw.line(self._bg,self.next_block.color,[self._x+x*bz+cx+bz/2,self._y+cy+y*bz],[self._x+x*bz+cx+bz/2,self._y+cy+(y+1)*bz],bz)
 pygame.draw.rect(self._bg,[255,255,255],[self._x+x*bz+cx,self._y+y*bz+cy,bz+1,bz+1],1)

class ScoreBox(object):
 total_score = 0
 high_score = 0
 db_file = 'tetris.db'
 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]
 
 if os.path.exists(self.db_file): self.high_score = pickle.load(open(self.db_file,'rb'))

 def paint(self):
 myfont = pygame.font.Font(None,36)
 white = 255,255,255
 textImage = myfont.render('High: %06d'%(self.high_score), True, white)
 self._bg.blit(textImage, (self._x,self._y))
 textImage = myfont.render('Score:%06d'%(self.total_score), True, white)
 self._bg.blit(textImage, (self._x,self._y+40))

 def add_score(self, score):
 self.total_score += score
 if self.total_score > self.high_score:
 self.high_score=self.total_score
 pickle.dump(self.high_score, open(self.db_file,'wb+'))

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
 hint_box=None
 score_box=None
 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 x,y in block.get_rect_arr():
 self.rect_arr.append(RectInfo(x,y, block.color))

 def create_move_block(self):
 block = self.hint_box.take_block()
 #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 rect_info in self.rect_arr:
 if x+diffx==rect_info.x and y+diffy==rect_info.y:
  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 rect_info in self.rect_arr:
 if rect_info.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 rect_info in self.rect_arr:
 if rect_info.y<0: return
 tmp_arr[rect_info.y].append(rect_info)

 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 rect_info in tmp_row:
  #new_arr.append([x,y+y_clear_diff])
  new_arr.append(RectInfo(rect_info.x, rect_info.y+y_clear_diff, rect_info.color))
 
 self.rect_arr = new_arr
 score = SCORE_MAP[clear_num-1]
 self.score_box.add_score(score)


 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_info in self.rect_arr:
 x=rect_info.x
 y=rect_info.y
 pygame.draw.line(self._bg,rect_info.color,[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,self.moving_block.color,[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()
 self.color=(50,180,50)

 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()
 self.color=(0,0,255)

 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()
 self.color=(30,200,200)

 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()
 self.color=(255,30,255)

 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()
 self.color=(200,200,30)

 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()
 self.color=(200,100,0)

 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()
 self.color=(255,0,0)

 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])
 hint_box=HintBox(screen,main_block_size,[main_panel_width+space+space,space,160,160])
 score_box=ScoreBox(screen,main_block_size,[main_panel_width+space+space,160+space*2,160,160])
 
 main_panel.hint_box=hint_box
 main_panel.score_box=score_box

 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
 hint_box.paint() # 绘制下一个方块的提示窗
 score_box.paint() # 绘制总分

 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()

也许有人会想右下角空那么大一块是做什么用的？
那块区域我是准备做对战显示用的，这里基础篇差不多算收尾了，下一篇准备写AI篇。

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呐喊教程。

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