import tkinter as tk
import random
from threading import Lock

COLORS = ['gray', 'lightgreen', 'pink', 'blue', 'orange', 'purple','black','yellow']

class Tetris():
FIELD_HEIGHT = 20
FIELD_WIDTH = 25
SCORE_PER_ELIMINATED_LINES = (0, 40, 100, 300, 1200)
TETROMINOS = [
[(0, 0), (0, 1), (1, 0), (1,1)], # O
[(0, 0), (0, 1), (1, 1), (2,1)], # L
[(0, 1), (1, 1), (2, 1), (2,0)], # J
[(0, 1), (1, 0), (1, 1), (2,0)], # Z
[(0, 1), (1, 0), (1, 1), (2,1)], # T
[(0, 0), (1, 0), (1, 1), (2,1)], # S
[(0, 1), (1, 1), (2, 1), (3,1)], # I
]

def __init__(self):
    self.field = [[0 for c in range(Tetris.FIELD_WIDTH)] for r in range(Tetris.FIELD_HEIGHT)]
    self.score = 0
    self.level = 0
    self.total_lines_eliminated = 0
    self.game_over = False
    self.move_lock = Lock()
    self.reset_tetromino()

def reset_tetromino(self):
    self.tetromino = random.choice(Tetris.TETROMINOS)[:]
    self.tetromino_color = random.randint(1, len(COLORS)-1)
    self.tetromino_offset = [-2, Tetris.FIELD_WIDTH//2]
    self.game_over = any(not self.is_cell_free(r, c) for (r, c) in self.get_tetromino_coords())

def get_tetromino_coords(self):
    return [(r+self.tetromino_offset[0], c + self.tetromino_offset[1]) for (r, c) in self.tetromino]

def apply_tetromino(self):
    for (r, c) in self.get_tetromino_coords():
        self.field[r][c] = self.tetromino_color

    new_field = [row for row in self.field if any(tile == 0 for tile in row)]
    lines_eliminated = len(self.field)-len(new_field)
    self.total_lines_eliminated += lines_eliminated
    self.field = [[0]*Tetris.FIELD_WIDTH for x in range(lines_eliminated)] + new_field
    self.score += Tetris.SCORE_PER_ELIMINATED_LINES[lines_eliminated] * (self.level + 1)
    self.level = self.total_lines_eliminated // 10
    self.reset_tetromino()

def get_color(self, r, c):
    return self.tetromino_color if (r, c) in self.get_tetromino_coords() else self.field[r][c]

def is_cell_free(self, r, c):
    return r < Tetris.FIELD_HEIGHT and 0 <= c < Tetris.FIELD_WIDTH and (r < 0 or self.field[r][c] == 0)

def move(self, dr, dc):
    with self.move_lock:
        if self.game_over:
            return

        if all(self.is_cell_free(r + dr, c + dc) for (r, c) in self.get_tetromino_coords()):
            self.tetromino_offset = [self.tetromino_offset[0] + dr, self.tetromino_offset[1] + dc]
        elif dr == 1 and dc == 0:
            self.game_over = any(r < 0 for (r, c) in self.get_tetromino_coords())
            if not self.game_over:
                self.apply_tetromino()

def rotate(self):
    with self.move_lock:
        if self.game_over:
            self.__init__()
            return

        ys = [r for (r, c) in self.tetromino]
        xs = [c for (r, c) in self.tetromino]
        size = max(max(ys) - min(ys), max(xs)-min(xs))
        rotated_tetromino = [(c, size-r) for (r, c) in self.tetromino]
        wallkick_offset = self.tetromino_offset[:]
        tetromino_coord = [(r+wallkick_offset[0], c + wallkick_offset[1]) for (r, c) in rotated_tetromino]
        min_x = min(c for r, c in tetromino_coord)
        max_x = max(c for r, c in tetromino_coord)
        max_y = max(r for r, c in tetromino_coord)
        wallkick_offset[1] -= min(0, min_x)
        wallkick_offset[1] += min(0, Tetris.FIELD_WIDTH - (1 + max_x))
        wallkick_offset[0] += min(0, Tetris.FIELD_HEIGHT - (1 + max_y))

        tetromino_coord = [(r+wallkick_offset[0], c + wallkick_offset[1]) for (r, c) in rotated_tetromino]
        if all(self.is_cell_free(r, c) for (r, c) in tetromino_coord):
            self.tetromino, self.tetromino_offset = rotated_tetromino, wallkick_offset

class Application(tk.Frame):
def init(self, master=None):
super().init(master)
self.tetris = Tetris()
self.pack()
self.create_widgets()
self.update_clock()

def update_clock(self):
    self.tetris.move(1, 0)
    self.update()  
    self.master.after(int(1000*(0.66**self.tetris.level)), self.update_clock)

def create_widgets(self):
    PIECE_SIZE = 30
    self.canvas = tk.Canvas(self, height=PIECE_SIZE*self.tetris.FIELD_HEIGHT, 
                                  width = PIECE_SIZE*self.tetris.FIELD_WIDTH, bg="black", bd=0)
    self.canvas.bind('<Left>', lambda _: (self.tetris.move(0, -1), self.update()))
    self.canvas.bind('<Right>', lambda _: (self.tetris.move(0, 1), self.update()))
    self.canvas.bind('<Down>', lambda _: (self.tetris.move(1, 0), self.update()))
    self.canvas.bind('<Up>', lambda _: (self.tetris.rotate(), self.update()))
    self.canvas.focus_set()
    self.rectangles = [
        self.canvas.create_rectangle(c*PIECE_SIZE, r*PIECE_SIZE, (c+1)*PIECE_SIZE, (r+1)*PIECE_SIZE)
            for r in range(self.tetris.FIELD_HEIGHT) for c in range(self.tetris.FIELD_WIDTH)
    ]
    self.canvas.pack(side="left")
    self.status_msg = tk.Label(self, anchor='w', width=11, font=("Courier", 24))
    self.status_msg.pack(side="top")
    self.game_over_msg = tk.Label(self, anchor='w', width=11, font=("Courier", 24), fg='red')
    self.game_over_msg.pack(side="top")

def update(self):
    for i, _id in enumerate(self.rectangles):
        color_num = self.tetris.get_color(i//self.tetris.FIELD_WIDTH, i % self.tetris.FIELD_WIDTH)
        self.canvas.itemconfig(_id, fill=COLORS[color_num])

    self.status_msg['text'] = "Score: {}\nLevel: {}".format(self.tetris.score, self.tetris.level)
    self.game_over_msg['text'] = "GAME OVER.\nPress UP\nto reset" if self.tetris.game_over else ""

root = tk.Tk()
app = Application(master=root)
app.mainloop()

在網上找到的代碼，自己照著寫，先是無法運行，于是就在網上學習安裝了pygame，成功運行之后，又嘗試修改了其顏色、界面大小和下落速度等參數。