(???) rom random import randrange
 (???) rom blocks import blocks
 (???) rom bucket import Bucket
 (???) rom render import draw_bucket
 (???) rom browser import document, bind, window, timer
 (???) lass Tetris:
 (???)    def __init__(self):
 (???)        canvas = document["tetris"]
 (???)        self.ctx = canvas.getContext("2d")
 (???)        self.bucket = Bucket()
 (???)        # new game
 (???)        self.lines = 0
 (???)        self.score = 0
 (???)        self.timer = 0
 (???)        # new block
 (???)        self.new_block()
 (???)    def new_block(self):
 (???)        self.block = randrange(len(blocks))     # TODO seems not very random, lots of same blocks
 (???)        self.rotation = 0
 (???)        self.row = 0
 (???)        self.column = 3
 (???)        if not self.bucket.test_tetromino(self.row, self.column, self.block, self.rotation):
 (???)            window.alert('Game over!')
 (???)            timer.clear_interval(self.timer)
 (???)            return
 (???)        self.bucket.draw_tetromino(self.row, self.column, self.block, self.rotation)
 (???)        timer.clear_interval(self.timer)
 (???)        self.timer = timer.set_interval(self.move_down, 650 - self.lines)
 (???)    def move_down(self):
 (???)        self.bucket.clear_tetromino(self.row, self.column, self.block, self.rotation)
 (???)        if self.bucket.test_tetromino(self.row + 1, self.column, self.block, self.rotation):
 (???)            self.score += 1
 (???)            self.row += 1
 (???)            self.bucket.draw_tetromino(self.row, self.column, self.block, self.rotation)
 (???)        else:
 (???)            # land block
 (???)            self.bucket.draw_tetromino(self.row, self.column, self.block, self.rotation)
 (???)            lines_cleared = self.bucket.clear_lines()
 (???)            self.score += [0, 150, 300, 700, 1500][lines_cleared]
 (???)            self.lines += lines_cleared
 (???)            # new block
 (???)            self.new_block()
 (???)    def move_left(self):
 (???)        self.bucket.clear_tetromino(self.row, self.column, self.block, self.rotation)
 (???)        if self.bucket.test_tetromino(self.row, self.column - 1, self.block, self.rotation):
 (???)            self.column -= 1
 (???)        self.bucket.draw_tetromino(self.row, self.column, self.block, self.rotation)
 (???)    def move_right(self):
 (???)        self.bucket.clear_tetromino(self.row, self.column, self.block, self.rotation)
 (???)        if self.bucket.test_tetromino(self.row, self.column + 1, self.block, self.rotation):
 (???)            self.column += 1
 (???)        self.bucket.draw_tetromino(self.row, self.column, self.block, self.rotation)
 (???)    def rotate(self):
 (???)        self.bucket.clear_tetromino(self.row, self.column, self.block, self.rotation)
 (???)        if self.bucket.test_tetromino(
 (???)            self.row, self.column, self.block, (self.rotation + 1) % 4
 (???)        ):
 (???)            self.rotation = (self.rotation + 1) % 4
 (???)        self.bucket.draw_tetromino(self.row, self.column, self.block, self.rotation)
 (???)    def drop(self):
 (???)        self.bucket.clear_tetromino(self.row, self.column, self.block, self.rotation)
 (???)        while self.bucket.test_tetromino(self.row + 1, self.column, self.block, self.rotation):
 (???)            self.row += 1
 (???)            self.score += 5
 (???)        self.bucket.draw_tetromino(self.row, self.column, self.block, self.rotation)
 (???)    def draw_score(self):
 (???)        self.ctx.fillStyle = "white"
 (???)        self.ctx.fillText(f"Score: {self.score}", 220, 20)
 (???)        self.ctx.fillText(f"Lines: {self.lines}", 220, 40)
 (???)    def loop(self, *args):
 (???)        self.ctx.clearRect(0, 0, self.ctx.canvas.width, self.ctx.canvas.height)
 (???)        self.draw_score()
 (???)        draw_bucket(self.ctx, self.bucket.bucket)
 (???)        # TODO optimize timer.set_timeout(self.loop, self.speed)
 (???)        window.requestAnimationFrame(self.loop)
 (???) bind(document, "keydown")
 (DOC) ef keyDownHandler(e):
 (???)    if e.metaKey or e.altKey or e.shiftKey or e.ctrlKey:
 (???)        return
 (???)    match e.code:
 (???)        case "ArrowLeft" | "KeyJ":
 (???)            e.preventDefault()
 (???)            tetris.move_left()
 (???) 
 (???)        case "ArrowRight" | "KeyL":
 (???)            e.preventDefault()
 (???)            tetris.move_right()
 (???) 
 (???)        case "ArrowDown" | "KeyM":
 (???)            e.preventDefault()
 (???)            tetris.move_down()
 (???) 
 (???)        case "ArrowUp" | "KeyK":
 (???)            e.preventDefault()
 (???)            tetris.rotate()
 (???)        case "Space":
 (???)            e.preventDefault()
 (???)            tetris.drop()
 (???) etris = Tetris()
 (???) etris.loop()