diff --git a/STKAITI.TTF b/STKAITI.TTF
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diff --git a/bg.png b/bg.png
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diff --git a/lesson12-diy3.py b/lesson12-diy3.py
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+import pygame
+from pygame import locals
+import random
+
+pygame.init() # 初始化
+score = 0
+grid_size = 20 # 格子大小
+grid_num_width = 15 # 横向格子数量
+grid_num_height = 25 # 纵向格子数量
+FPS = 30 # 帧率
+count = 0
+states = False
+gameover=False
+
+# 创建窗口
+screen = pygame.display.set_mode((460, 500))
+pygame.display.set_caption("俄罗斯方块")
+clock = pygame.time.Clock() # pygame时钟，控制游戏速度（帧数）
+# 载入素材
+background = pygame.image.load('bg.png')
+font = pygame.font.Font('STKAITI.TTF', 60) # 字体
+font_restart=pygame.font.Font('STKAITI.TTF', 25) # 字体
+
+# 俄罗斯方块所有形状
+O = [[(0, 0), (0, 1), (1, 0), (1, 1)]]
+I = [[(0, -1), (0, 0), (0, 1), (0, 2)],
+ [(-1, 0), (0, 0), (1, 0), (2, 0)]]
+Z = [[(0, -1), (0, 0), (1, 0), (1, 1)],
+ [(-1, 0), (0, 0), (0, -1), (1, -1)]]
+S = [[(-1, 0), (0, 0), (0, 1), (1, 1)],
+ [(1, -1), (1, 0), (0, 0), (0, 1)]]
+T = [[(0, -1), (0, 0), (0, 1), (-1, 0)],
+ [(-1, 0), (0, 0), (1, 0), (0, 1)],
+ [(0, -1), (0, 0), (0, 1), (1, 0)],
+ [(-1, 0), (0, 0), (1, 0), (0, -1)]]
+J = [[(-1, 0), (0, 0), (1, 0), (1, -1)],
+ [(0, -1), (0, 0), (0, 1), (-1, -1)],
+ [(-1, 0), (0, 0), (1, 0), (-1, 1)],
+ [(0, -1), (0, 0), (0, 1), (1, 1)]]
+L = [[(-1, 0), (0, 0), (1, 0), (1, 1)],
+ [(0, -1), (0, 0), (0, 1), (1, -1)],
+ [(-1, 0), (0, 0), (1, 0), (-1, -1)],
+ [(0, -1), (0, 0), (0, 1), (-1, 1)]]
+shape_list = [I, J, L, O, S, T, Z] # 7种类型俄罗斯方块
+
+# 一些RGB颜色
+cube_colors = [
+ (204, 153, 153), (102, 102, 153),(153, 0, 102),
+ (255, 204, 0), (204, 0, 51),(255, 0, 51), (0, 102, 153),
+ (153, 0, 51), (204, 255, 102), (255, 153, 0)]
+
+def check(center):
+ for cube in current_shape:
+ cube = (cube[0] + center[0], cube[1] + center[1])
+ # 当前的小方块超出网格的行、列，就返回False
+ if cube[0] < 1 or cube[1] < 1 or cube[0] > grid_num_height \
+ or cube[1] >grid_num_width:
+ return False
+ if num_list[cube[0]-1][cube[1]-1] != 0:
+ return False
+
+# 格子基础数字设为0
+num_list = []
+for i in range(25):
+ num_list.append([0] * 15)
+
+while True:
+ for event in pygame.event.get():
+ if event.type == locals.QUIT:
+ exit()
+ if event.type == locals.KEYDOWN:
+ if gameover==True:
+ gameover=False
+ if event.key == locals.K_LEFT: # 向左
+ center[1] = center[1] - 1 # 左移1列
+ if check(center) == False:
+ center[1] = center[1] + 1 # 右移1列
+
+ elif event.key == locals.K_RIGHT: # 向右
+ center[1] = center[1] + 1
+ if check(center) == False:
+ center[1] = center[1] - 1
+
+ elif event.key == locals.K_DOWN: # 向下
+ center[0] = center[0] + 1
+ if check(center) == False:
+ center[0] = center[0] - 1
+
+ elif event.key == locals.K_UP: # 向上键
+ old_index = index
+ index += 1
+ if index >= len(shape):
+ index = 0
+ current_shape = shape[index]
+ if check(center) == False:
+ index = old_index
+ current_shape = shape[index]
+ if gameover==False:
+ # 生成新俄罗斯方块
+ if states == False:
+ states = True
+ center = [2, 8] # 第2行第8列
+ shape = random.choice(shape_list)
+ index = random.randint(0, len(shape)-1) # 随机形状索引
+ current_shape = shape[index]
+ color = random.choice(cube_colors) # 随机选取一种颜色
+ count += 1
+ if count % FPS == 0: # 降落速度的算式
+ center[0] = center[0] + 1
+ if check(center) == False:
+ center[0] = center[0] - 1
+ states = False
+ for cube in current_pos:
+ num_list[cube[0]-1][cube[1]-1] = color
+ # 将背景图画上去
+ screen.blit(background, (0, 0))
+ # 计算出所有小方块的行、列位置
+ current_pos = []
+ for cube in current_shape:
+ pos = (cube[0] + center[0], cube[1] + center[1])
+ current_pos.append(pos)
+ # 取出所有小方块的行、列位置，计算坐标，绘制俄罗斯方块
+ for cube in current_pos:
+ pygame.draw.rect(screen, color,
+ (cube[1] * 20-20, cube[0] * 20-20, 20, 20), 0)
+ pygame.draw.rect(screen, (255, 255, 255),
+ (cube[1] * 20-20, cube[0] * 20-20, 20, 20), 1)
+ # 画出降落后的方块
+ for i, row in zip(range(1,26), num_list):
+ for j, colors in zip(range(1,16), row):
+ if colors != 0:
+ pygame.draw.rect(screen, colors,
+ (j * 20-20, i * 20-20, 20, 20))
+ pygame.draw.rect(screen, (255, 255, 255),
+ (j * 20-20, i * 20-20, 20, 20), 1)
+
+ new_list = [] # 新的地图列表
+ for i in range(25):
+ new_list.append([0] * 15)
+ row_index = 24
+ for i in range(24, -1, -1):
+ is_full = True
+ for j in range(grid_num_width):
+ if num_list[i][j] == 0:
+ is_full = False
+ if is_full == False:
+ new_list[row_index] = num_list[i]
+ row_index -= 1
+ else:
+ score += 1
+ num_list = new_list
+ if num_list[1][7]!=0:
+ gameover=True
+
+ # 得分
+ text_surface = font.render(str(score), True, (0, 0, 0))
+ screen.blit(text_surface, (350,70))
+ if gameover==True:
+ text=font_restart.render("游戏失败，按任意键开始",True,(0,0,0))
+ screen.blit(text,(20,250))
+ score=0
+ num_list=[]
+ for i in range(25):
+ num_list.append([0]*15)
+ # 刷新画面
+ pygame.display.update()
+ clock.tick(FPS)
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