python中简单的方块匹配游戏中的坐标问题

Question

我正在构建一个简单的 python 方块匹配游戏，它首先选择随机颜色的方块并将它们放在屏幕上，以便它们填满屏幕。然后玩家将方块的位置随机化并尝试将方块与起始位置相匹配。如果他匹配它，下一个方块开始移动，他必须匹配它。

由于我无法更改的正方形 (21x21) 的起始像素大小，我的正方形有点太大，但这是附带问题。

我写了一个代码来检查方块是否在正确的位置，但它不适用于左下角的方块，我不知道为什么......任何时候我运行代码，我都可以匹配每个方块并且一切正常，除了一平方

我已经编程一个月了，所以任何对我的代码效率的批评都会有所帮助！

我有3个文件：

main.py:

from turtle import Screen
from squares_manager import Square
from scoreboard import Scoreboard
import time

screen = Screen()
screen.setup(width=600, height=600)
screen.bgcolor("black")
screen.tracer(0)
game_is_on = True

scoreboard = Scoreboard()
scoreboard.starting_writing()

square = Square()


def combine_starting_functions():
    square.create_start_square()
    scoreboard.when_game_starts()
    square.squares_starting_pos()


screen.listen()
screen.onkey(combine_starting_functions, "space")
screen.onkey(square.randomize_squares, "Return")
screen.onkeypress(square.move_down, "Down")
screen.onkeypress(square.move_right, "Right")
screen.onkeypress(square.move_left, "Left")
screen.onkeypress(square.move_up, "Up")

while game_is_on:
    screen.update()

screen.exitonclick()

square_manager.py:

from turtle import Turtle
import random

COLORS = ["red", "blue", "pink", "yellow", "green", 'purple', "orange", "white", "brown", "cyan", "firebrick",
          "dark magenta", "peach puff", "salmon", "dark violet", "spring green"]

STARTING_SIZE = 600


class Square(Turtle):
    def __init__(self):
        super().__init__()
        self.number_of_squares = 2
        self.level = self.number_of_squares ** 2
        self.squares = []
        self.positions = []
        self.list_squares_to_move = []
        self.distance_between = STARTING_SIZE / self.number_of_squares
        self.half_of_square = self.distance_between / 2
        for square in range(self.level):
            self.list_squares_to_move.append(square)
        self.which_square = random.choice(self.list_squares_to_move)

    def create_start_square(self):
        for square in range(self.level):
            new_square = Turtle()
            new_square.hideturtle()
            new_square.shape("square")
            # new_square.shape("/Users/Łukasz/Desktop/20x20square.gif")
            ran_color = random.choice(COLORS)
            new_square.color(ran_color)
            COLORS.remove(ran_color)
            new_square.penup()
            new_square.turtlesize((STARTING_SIZE / 20) / self.number_of_squares)
            self.squares.append(new_square)

    def squares_starting_pos(self):
        increment_next_square_x = 0
        increment_next_square_y = 0
        for square in self.squares:
            square.showturtle()
            square.goto((-self.half_of_square) + increment_next_square_x, self.half_of_square + increment_next_square_y)
            increment_next_square_x += self.distance_between
            if square.xcor() > 300:
                square.setx(-300 + self.half_of_square)
                square.right(90)
                square.forward(self.distance_between)
                increment_next_square_y -= self.distance_between
                increment_next_square_x = self.distance_between
            self.positions.append(square.position())
            print(self.positions)

    def randomize_squares(self):
        for square in self.squares:
            square.goto(random.randint(-300 + self.half_of_square, 300 - self.half_of_square), random.randint
            (-300 + self.half_of_square, 300 - self.half_of_square))
            square.setheading(90)

    # def level_up(self):
    #     self.number_of_squares += 1

    def move_up(self):
        self.squares[self.which_square].forward(1)
        self.check_square_position()

    def move_down(self):
        self.squares[self.which_square].backward(1)
        self.check_square_position()

    def move_right(self):
        self.squares[self.which_square].right(90)
        self.squares[self.which_square].forward(1)
        self.squares[self.which_square].left(90)
        self.check_square_position()

    def move_left(self):
        self.squares[self.which_square].left(90)
        self.squares[self.which_square].forward(1)
        self.squares[self.which_square].right(90)
        self.check_square_position()

    def check_square_position(self):
        print(self.squares[self.which_square].position())
        print(self.positions[self.which_square])
        if self.squares[self.which_square].position() == self.positions[self.which_square]:
            self.list_squares_to_move.remove(self.which_square)
            self.next_square_to_move()
        print(self.list_squares_to_move)

    def next_square_to_move(self):
        self.which_square = random.choice(self.list_squares_to_move)

记分牌_py：

from turtle import Turtle


class Scoreboard(Turtle):
    def __init__(self):
        super().__init__()
        self.hideturtle()
        self.penup()

    def starting_writing(self):
        self.pencolor("white")
        self.home()
        self.pendown()
        self.write("TO SEE STARTING POSITION PRESS SPACE BAR \n AFTER THAT PRESS ENTER TO START A GAME \n "
                               "             TO MOVE PRESS ARROWS", False, "center"
                   , ("arial", 15, "bold"))
        self.penup()

    def when_game_starts(self):
        self.clear()
        self.hideturtle()