弧形奇怪地出来

Question

我正在尝试做一个接鸡蛋的游戏，除了篮筐外一切正常，它应该看起来像一个倒转的弧形但它变成了一个非常奇怪的形状，我已经搜索了很长时间尽我所能，但没有人遇到过这样的问题。

我希望它看起来像这样：

我必须post整个程序，否则你不会理解：

from itertools import cycle
from random import randrange
from tkinter import Canvas, Tk, messagebox, font

canvas_width = 800
canvas_height = 400

root = Tk()

c = Canvas(
    root,
    width=canvas_width,
    height=canvas_height,
    background="deep sky blue"
)
c.create_rectangle(
    -5,
    canvas_height - 100,
    canvas_width + 5,
    canvas_height + 5,
    fill="sea green",
    width=0
)
c.create_oval(-80, -80, 120, 120, fill="orange", width=0)
c.pack()

color_cycle = cycle([
    "light blue",
    "light green",
    "light pink",
    "light yellow",
    "light cyan"
])

egg_width = 45
egg_height = 55
egg_score = 10
egg_speed = 500
egg_interval = 4000

difficulty_factor = 0.95

catcher_color = "blue"
catcher_width = 100
catcher_height = 100
catcher_start_x = canvas_width / 2 - catcher_width / 2
catcher_start_y = canvas_height - catcher_width - 20
catcher_start_x2 = catcher_start_x = catcher_width
catcher_start_y2 = catcher_start_y + catcher_height
catcher = c.create_arc(
    catcher_start_x,
    catcher_start_y,
    catcher_start_x2,
    catcher_start_y2,
    start=200,
    extent=140,
    style="arc",
    outline=catcher_color,
    width=30
)

game_font = font.nametofont("TkFixedFont")
game_font.config(size=18)
score = 0
score_text = c.create_text(
    10,
    10,
    anchor="nw" ,
    font=game_font,
    fill="darkblue",
    text="Score: " + str(score)
)

lives_remaining = 3
lives_text = c.create_text(
    canvas_width - 10,
    10,
    anchor="ne",
    font=game_font,
    fill="darkblue",
    text="Lives " + str(lives_remaining)
)

eggs = []


def create_egg():
    x = randrange(10, 740)
    y = 40
    new_egg = c.create_oval(
        x,
        y,
        x + egg_width,
        y + egg_height,
        fill=next(color_cycle),
        width=0
    )
    eggs.append(new_egg)
    root.after(egg_interval, create_egg)


def move_eggs():
    for egg in eggs:
        (egg_x, egg_y, egg_x2, egg_y2) = c.coords(egg)
        c.move(egg, 0, 10)
        if egg_y2 > canvas_height:
            egg_dropped(egg)
    root.after(egg_speed, move_eggs)


def egg_dropped(egg):
    eggs.remove(egg)
    lose_a_life()
    if lives_remaining == 0:
        messagebox.showinfo("Game Over!", "Final Score: " + str(score))
        root.destroy()


def lose_a_life():
    global lives_remaining
    lives_remaining -= 1
    c.itemconfigure(lives_text, text = "Lives: " + str(lives_remaining))


def check_catch():
    catcher_x, catcher_y, catcher_x2, catcher_y2 = c.coords(catcher)
    for egg in eggs:
        egg_x, egg_y, egg_x2, egg_y2 = c.coords(egg)
        if egg_x<catcher_x<egg_x2 and (catcher_y2 - egg_y2) < 5:
            eggs.remove(egg)
            c.delete(egg)
            increase_score(egg_score)
    root.after(100, check_catch)
    

def increase_score(points):
    global score, egg_speed, egg_interval
    score += points
    egg_speed = int(egg_speed * difficulty_factor)
    egg_interval = int(egg_interval * difficulty_factor)
    c.itemconfigure(score_text, text="Score: " + str(score))


def move_left(event):
    (x1, y1, x2, y2) = c.coords(catcher)
    if x1 > 0:
        c.move(catcher, -20, 0)


def move_right(event):
    (x1, y1, x2, y2) = c.coords(catcher)
    if x2 < canvas_width:
        c.move(catcher, 20, 0)


c.bind("<Left>" , move_left)
c.bind("<Right>", move_right)
c.focus_set()

root.after(1000, create_egg)
root.after(1000, move_eggs)
root.after(1000, check_catch)
root.mainloop()

Answer 1

您在第 27 行有错字 - 您在本应 catcher_start_x2 = catcher_start_x - catcher_width.

的地方写了 catcher_start_x2 = catcher_start_x = catcher_width

此外，第 29 行的反斜杠是不必要的，因为括号中的内容会自动在多行中继续。

还有一件事 - 一旦拼写错误被修复，鸡蛋只会在捕手的左侧区域被捕获，因为第 79 行（if egg_x<catcher_x<egg_x2 and (catcher_y2 - egg_y2) < 5:）正在检查捕手的左侧 x 坐标是否在捕手的内部鸡蛋的 x 坐标不是相反。要解决此问题，请将其替换为 if catcher_x - 10 < egg_x and egg_x2 < catcher_x2 + 10 and (catcher_y2 - egg_y2) < 5:（-10 和 +10 是为了给玩家一些余地，这样鸡蛋就不必正好在中心）。

弧形奇怪地出来

Arc shape coming out strangely

python

tkinter

shapes