python 基于pygame实现俄罗斯方块

一、简单说明

80、90后的小伙伴都玩过“俄罗斯方块”，那种“叱咤风云”场景 偶尔闪现在脑海 真的是太爽了；如果没有来得及玩过的同学，这次可以真正的自己做一个了

本实例用的是Python3（当然了Python3.5 3.6 3.7....都行 ）+ pygame实现的

运行之前需要安装pygame模块，安装命令如下

pip install pygame -i https://mirrors.aliyun.com/pypi/simple/

二、运行效果

三、完整代码

文件main.py代码如下：

"""
作者：it项目实例网
更多项目实例，请访问：www.itprojects.cn
"""

import random
import sys
import time

import pygame

from blocks import block_s, block_i, block_j, block_l, block_o, block_t, block_z

SCREEN_WIDTH, SCREEN_HEIGHT = 450, 750
BG_COLOR = (40, 40, 60) # 背景色
BLOCK_COL_NUM = 10 # 每行的方格数
SIZE = 30 # 每个小方格大小
BLOCK_ROW_NUM = 25 # 每列的方个数
BORDER_WIDTH = 4 # 游戏区边框宽度
RED = (200, 30, 30) # 红色，GAME OVER 的字体颜色

def judge_game_over(stop_all_block_list):
"""
判断游戏是否结束
"""
if "O" in stop_all_block_list[0]:
 return True

def change_speed(score):
speed_level = [("1", 0.5, 0, 20), ("2", 0.4, 21, 50), ("3", 0.3, 51, 100), ("4", 0.2, 101, 200), ("5", 0.1, 201, None)]
for speed_info, speed, score_start, score_stop in speed_level:
 if score_stop and score_start <= score <= score_stop:
  return speed_info, speed
 elif score_stop is None and score >= score_start:
  return speed_info, speed

def judge_lines(stop_all_block_list):
"""
判断是否有同一行的方格，如果有则消除
"""
# 记录刚刚消除的行数
move_row_list = list()
# 消除满格的行
for row, line in enumerate(stop_all_block_list):
 if "." not in line:
  # 如果这一行没有. 那么就意味着全部是O，则消除这一行
  stop_all_block_list[row] = ['.' for _ in range(len(line))]
  move_row_list.append(row)

# 如果没有满格的行，则结束此函数
if not move_row_list:
 return 0

# 移动剩余的行到下一行
for row in move_row_list:
 stop_all_block_list.pop(row)
 stop_all_block_list.insert(0, ['.' for _ in range(len(line))])

return len(move_row_list) * 10

def add_to_stop_all_block_list(stop_all_block_list, current_block, current_block_start_row, current_block_start_col):
"""
将当前已经停止移动的block添加到列表中
"""
for row, line in enumerate(current_block):
 for col, block in enumerate(line):
  if block != '.':
   stop_all_block_list[current_block_start_row + row][current_block_start_col + col] = "O"

def change_current_block_style(current_block):
"""
改变图形的样式
"""
# 计算出，当前图形样式属于哪个图形
current_block_style_list = None
for block_style_list in [block_s, block_i, block_j, block_l, block_o, block_t, block_z]:
 if current_block in block_style_list:
  current_block_style_list = block_style_list

# 得到当前正在用的图形的索引（下标）
index = current_block_style_list.index(current_block)
# 它的下一个图形的索引
index += 1
# 防止越界
index = index ％ len(current_block_style_list)
# 返回下一个图形
return current_block_style_list[index]

def judge_move_right(current_block, current_block_start_col):
"""
判断是否可以向右移动
"""
# 先判断列的方式是从右到左
for col in range(len(current_block[0]) - 1, -1, -1):
 # 得到1列的所有元素
 col_list = [line[col] for line in current_block]
 # 判断是否碰到右边界
 if 'O' in col_list and current_block_start_col + col >= BLOCK_COL_NUM:
  return False
return True

def judge_move_left(current_block, current_block_start_col):
"""
判断是否可以向左移动
"""
# 先判断列的方式是从左到右
for col in range(len(current_block[0])):
 # 得到1列的所有元素
 col_list = [line[col] for line in current_block]
 # 判断是否碰到右边界
 if 'O' in col_list and current_block_start_col + col < 0:
  return False
return True

def judge_move_down(current_block, current_block_start_row, current_block_start_col, stop_all_block_list):
"""
判断是否碰撞到其它图形或者底边界
"""
# 得到其它图形所有的坐标
stop_all_block_position = list()
for row, line in enumerate(stop_all_block_list):
 for col, block in enumerate(line):
  if block != ".":
   stop_all_block_position.append((row, col))
# print(stop_all_block_position)

# 判断碰撞
for row, line in enumerate(current_block):
 if 'O' in line and current_block_start_row + row >= BLOCK_ROW_NUM:
  # 如果当前行有0，且从起始行开始算+当前显示的行，超过了总行数，那么就认为碰到了底部
  return False
 for col, block in enumerate(line):
  if block != "." and (current_block_start_row + row, current_block_start_col + col) in stop_all_block_position:
   return False

return True

def get_block():
"""
创建一个图形
"""
block_style_list = random.choice([block_s, block_i, block_j, block_l, block_o, block_t, block_z])
return random.choice(block_style_list)

def main():
pygame.init()
screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
pygame.display.set_caption('俄罗斯方块')

current_block = get_block() # 当前图形
current_block_start_row = -2 # 当前图片从哪一行开始显示图形
current_block_start_col = 4 # 当前图形从哪一列开始显示
next_block = get_block() # 下一个图形
last_time = time.time()
speed = 0.5 # 降落的速度
speed_info = '1' # 显示的速度等级

# 定义一个列表，用来存储所有的已经停止移动的形状
stop_all_block_list = [['.' for i in range(BLOCK_COL_NUM)] for j in range(BLOCK_ROW_NUM)]

# 字体
font = pygame.font.Font('yh.ttf', 24) # 黑体24
game_over_font = pygame.font.Font("yh.ttf", 72)
game_over_font_width, game_over_font_height = game_over_font.size('GAME OVER')
game_again_font_width, game_again_font_height = font.size('鼠标点击任意位置，再来一局')

# 得分
score = 0

# 标记游戏是否结束
game_over = False

# 创建计时器（防止while循环过快，占用太多CPU的问题）
clock = pygame.time.Clock()
while True:
 for event in pygame.event.get():
  if event.type == pygame.QUIT:
   sys.exit()
  elif event.type == pygame.KEYDOWN:
   if event.key == pygame.K_LEFT:
    if judge_move_left(current_block, current_block_start_col - 1):
     current_block_start_col -= 1
   elif event.key == pygame.K_RIGHT:
    if judge_move_right(current_block, current_block_start_col + 1):
     current_block_start_col += 1
   elif event.key == pygame.K_UP:
    current_block_next_style = change_current_block_style(current_block)
    if judge_move_left(current_block_next_style, current_block_start_col) and \
      judge_move_right(current_block_next_style, current_block_start_col) and \
      judge_move_down(current_block, current_block_start_row, current_block_start_col, stop_all_block_list):
     # 判断新的样式没有越界
     current_block = current_block_next_style
   elif event.key == pygame.K_DOWN:
    # 判断是否可以向下移动，如果碰到底部或者其它的图形就不能移动了
    if judge_move_down(current_block, current_block_start_row + 1, current_block_start_col, stop_all_block_list):
     current_block_start_row += 1
  elif event.type == pygame.MOUSEBUTTONDOWN and event.button:
   if game_over:
    # 重置游戏用到的变量
    current_block = get_block() # 当前图形
    current_block_start_row = -2 # 当前图片从哪一行开始显示图形
    current_block_start_col = 4 # 当前图形从哪一列开始显示
    next_block = get_block() # 下一个图形
    stop_all_block_list = [['.' for i in range(BLOCK_COL_NUM)] for j in range(BLOCK_ROW_NUM)]
    score = 0
    game_over = False

# 判断是否修改当前图形显示的起始行
 if not game_over and time.time() - last_time > speed:
  last_time = time.time()
  # 判断是否可以向下移动，如果碰到底部或者其它的图形就不能移动了
  if judge_move_down(current_block, current_block_start_row + 1, current_block_start_col, stop_all_block_list):
   current_block_start_row += 1
  else:
   # 将这个图形存储到统一的列表中，这样便于判断是否成为一行
   add_to_stop_all_block_list(stop_all_block_list, current_block, current_block_start_row, current_block_start_col)
   # 判断是否有同一行的，如果有就消除，且加上分数
   score += judge_lines(stop_all_block_list)
   # 判断游戏是否结束（如果第一行中间有O那么就表示游戏结束）
   game_over = judge_game_over(stop_all_block_list)
   # 调整速度
   speed_info, speed = change_speed(score)
   # 创建新的图形
   current_block = next_block
   next_block = get_block()
   # 重置数据
   current_block_start_col = 4
   current_block_start_row = -2

# 画背景（填充背景色）
 screen.fill(BG_COLOR)

# 画游戏区域分隔线
 pygame.draw.line(screen, (100, 40, 200), (SIZE * BLOCK_COL_NUM, 0), (SIZE * BLOCK_COL_NUM, SCREEN_HEIGHT), BORDER_WIDTH)

# 显示当前图形
 for row, line in enumerate(current_block):
  for col, block in enumerate(line):
   if block != '.':
    pygame.draw.rect(screen, (20, 128, 200), ((current_block_start_col + col) * SIZE, (current_block_start_row + row) * SIZE, SIZE, SIZE), 0)

# 显示所有停止移动的图形
 for row, line in enumerate(stop_all_block_list):
  for col, block in enumerate(line):
   if block != '.':
    pygame.draw.rect(screen, (20, 128, 200), (col * SIZE, row * SIZE, SIZE, SIZE), 0)

# 画网格线 竖线
 for x in range(BLOCK_COL_NUM):
  pygame.draw.line(screen, (0, 0, 0), (x * SIZE, 0), (x * SIZE, SCREEN_HEIGHT), 1)
 # 画网格线 横线
 for y in range(BLOCK_ROW_NUM):
  pygame.draw.line(screen, (0, 0, 0), (0, y * SIZE), (BLOCK_COL_NUM * SIZE, y * SIZE), 1)

# 显示右侧（得分、速度、下一行图形）
 # 得分
 score_show_msg = font.render('得分: ', True, (255, 255, 255))
 screen.blit(score_show_msg, (BLOCK_COL_NUM * SIZE + 10, 10))
 score_show_msg = font.render(str(score), True, (255, 255, 255))
 screen.blit(score_show_msg, (BLOCK_COL_NUM * SIZE + 10, 50))
 # 速度
 speed_show_msg = font.render('速度: ', True, (255, 255, 255))
 screen.blit(speed_show_msg, (BLOCK_COL_NUM * SIZE + 10, 100))
 speed_show_msg = font.render(speed_info, True, (255, 255, 255))
 screen.blit(speed_show_msg, (BLOCK_COL_NUM * SIZE + 10, 150))
 # 下一个图形（文字提示）
 next_style_msg = font.render('下一个: ', True, (255, 255, 255))
 screen.blit(next_style_msg, (BLOCK_COL_NUM * SIZE + 10, 200))
 # 下一个图形（图形）
 for row, line in enumerate(next_block):
  for col, block in enumerate(line):
   if block != '.':
    pygame.draw.rect(screen, (20, 128, 200), (320 + SIZE * col, (BLOCK_COL_NUM + row) * SIZE, SIZE, SIZE), 0)
    # 显示这个方格的4个边的颜色
    # 左
    pygame.draw.line(screen, (0, 0, 0), (320 + SIZE * col, (BLOCK_COL_NUM + row) * SIZE), (320 + SIZE * col, (BLOCK_COL_NUM + row + 1) * SIZE), 1)
    # 上
    pygame.draw.line(screen, (0, 0, 0), (320 + SIZE * col, (BLOCK_COL_NUM + row) * SIZE), (320 + SIZE * (col + 1), (BLOCK_COL_NUM + row) * SIZE), 1)
    # 下
    pygame.draw.line(screen, (0, 0, 0), (320 + SIZE * col, (BLOCK_COL_NUM + row + 1) * SIZE), (320 + SIZE * (col + 1), (BLOCK_COL_NUM + row + 1) * SIZE), 1)
    # 右
    pygame.draw.line(screen, (0, 0, 0), (320 + SIZE * (col + 1), (BLOCK_COL_NUM + row) * SIZE), (320 + SIZE * (col + 1), (BLOCK_COL_NUM + row + 1) * SIZE), 1)

# 显示游戏结束画面
 if game_over:
  game_over_tips = game_over_font.render('GAME OVER', True, RED)
  screen.blit(game_over_tips, ((SCREEN_WIDTH - game_over_font_width) // 2, (SCREEN_HEIGHT - game_over_font_height) // 2))
  # 显示"鼠标点击任意位置，再来一局"
  game_again = font.render('鼠标点击任意位置，再来一局', True, RED)
  screen.blit(game_again, ((SCREEN_WIDTH - game_again_font_width) // 2, (SCREEN_HEIGHT - game_again_font_height) // 2 + 80))

# 刷新显示（此时窗口才会真正的显示）
 pygame.display.update()
 # FPS（每秒钟显示画面的次数）
 clock.tick(60) # 通过一定的延时，实现1秒钟能够循环60次

if __name__ == '__main__':
main()

文件blocks.py代码如下：

# S形方块
block_s = [['.OO',
  'OO.',
  '...'],
  ['O..',
  'OO.',
  '.O.']]
# Z形方块
block_z = [['OO.',
  '.OO',
  '...'],
  ['.O.',
  'OO.',
  'O..']]
# I型方块
block_i = [['.O..',
  '.O..',
  '.O..',
  '.O..'],
  ['....',
  '....',
  'OOOO',
  '....']]
# O型方块
block_o = [['OO',
  'OO']]
# J型方块
block_j = [['O..',
  'OOO',
  '...'],
  ['.OO',
  '.O.',
  '.O.'],
  ['...',
  'OOO',
  '..O'],
  ['.O.',
  '.O.',
  'OO.']]
# L型方块
block_l = [['..O',
  'OOO',
  '...'],
  ['.O.',
  '.O.',
  '.OO'],
  ['...',
  'OOO',
  'O..'],
  ['OO.',
  '.O.',
  '.O.']]
# T型方块
block_t = [['.O.',
  'OOO',
  '...'],
  ['.O.',
  '.OO',
  '.O.'],
  ['...',
  'OOO',
  '.O.'],
  ['.O.',
  'OO.',
  '.O.']]

来源：https://www.cnblogs.com/dong4716138/p/14467634.html