跳過所有elifs到最后并激活最后的陳述句-有解無憂

我正在和一個朋友一起為一個專案制作一個非常有創意的俄羅斯方塊克隆，我們為每個形狀（包括旋轉）定制了精靈，我們為旋轉制作了一堵 else if 陳述句。它應該像這樣作業：它從主要的 7 個形狀串列中呼叫一個隨機形狀，并且每次用戶按下“a”時，它都會使用巨大的 el if 墻更改該形狀的左側 gif。然而，我們遇到了一個錯誤，它沒有執行 elif 陳述句，而是跳到最后一行并更改為 J 形狀，無論在隨機陳述句中呼叫什么形狀。任何幫助都會很棒，謝謝！（順便說一句，我們仍在學習）當用戶按下“d”鍵時也應該發生旋轉功能，但它應該改變到另一個方向。

   
import turtle as trtl
import random as rand
wn = trtl.Screen()
 
#configurations
tetris = trtl.Turtle()
drawer = trtl.Turtle()
background = trtl.Turtle()
 
starty = int(-400)
 
square = ("sqaure_block.gif")
 
s_block_normal = ("S_block_norm.gif")
s_block_standing = ("S_block_right.gif")
 
invert_s_block_normal = ("Z_block_norm.gif")
invert_s_block_standing = ("Z_block_right.gif")
 
l_block_normal = ("L_block_norm.gif")
l_block_180 = ("L_block_180.gif")
l_block_right = ("L_block_right.gif")
l_block_left = ("L_block_left.gif")
 
line_normal = ("line_block_norm.gif")
line_standing = ("line_block_standing.gif")
 
t_block_normal = ("T_block_norm.gif")
t_block_180 = ("T_block_180.gif")
t_block_right = ("T_BLOCK_RIGHT.gif")
t_block_left = ("T_block_left.gif")
 
j_block_normal = ("J_block_norm.gif")
j_block_180 = ("J_block_180.gif")
j_block_right = ("J_block_right.gif")
j_block_left = ("J_block_left.gif")
 
wn.addshape (square)
 
wn.addshape(s_block_normal)
wn.addshape(s_block_standing)
 
wn.addshape(invert_s_block_normal)
wn.addshape(invert_s_block_standing)
 
wn.addshape(l_block_normal)
wn.addshape(l_block_180)
wn.addshape(l_block_right)
wn.addshape(l_block_left)
 
wn.addshape(line_normal)
wn.addshape(line_standing)
 
wn.addshape(t_block_normal)
wn.addshape(t_block_180)
wn.addshape(t_block_right)
wn.addshape(t_block_left)
 
wn.addshape(j_block_normal)
wn.addshape(j_block_180)
wn.addshape(j_block_right)
wn.addshape(j_block_left)
 
Tshape = [square, s_block_normal, invert_s_block_normal, l_block_normal, line_normal, t_block_normal, j_block_normal]
 
squarecor = [-50, -25, -100, -50]
wn.bgcolor("lightblue")
background.speed("fastest")
background.hideturtle()
background.pu()
background.goto(-400,-200)
background.fillcolor("blue")
background.pencolor("blue")
background.begin_fill()
background.pd()
background.goto(400,-200)
background.goto(400,-350)
background.goto(-400,-350)
background.goto(-400,-200)
background.end_fill()
#sprite direction change
 
def sprite_right():
    global tetris
    tetris.hideturtle()
    if (tetris.shape(s_block_normal)):
        tetris.shape(s_block_standing)
    elif (tetris.shape(invert_s_block_normal)):
        tetris.shape(invert_s_block_standing)
    elif (tetris.shape(line_normal)):
        tetris.shape(line_standing)
    elif (tetris.shape(l_block_normal)):
        tetris.shape(l_block_right)
    elif (tetris.shape(t_block_normal)):
        tetris.shape(t_block_right)
    elif (tetris.shape(j_block_normal)):
        tetris.shape(j_block_right)
    elif (tetris.shape(l_block_right)):
        tetris.shape(l_block_180)
    elif (tetris.shape(t_block_right)):
        tetris.shape(t_block_180)
    elif (tetris.shape(j_block_right)):
        tetris.shape(j_block_180)
    elif (tetris.shape(s_block_standing)):
        tetris.shape(s_block_normal)
    elif (tetris.shape(invert_s_block_standing)):
        tetris.shape(invert_s_block_normal)
    elif (tetris.shape(line_standing)):
        tetris.shape(line_normal)
    elif (tetris.shape(l_block_180)):
        tetris.shape(l_block_left)
    elif (tetris.shape(t_block_180)):
        tetris.shape(t_block_left)
    elif (tetris.shape(j_block_180)):
        tetris.shape(j_block_left)
    elif (tetris.shape(l_block_left)):
        tetris.shape(l_block_normal)
    elif (tetris.shape(t_block_left)):
        tetris.shape(t_block_normal)
    elif (tetris.shape(j_block_left)):
        tetris.shape(j_block_normal)
    tetris.showturtle()
 
def sprite_left():
    tetris.hideturtle()
    if (tetris.shape(s_block_normal)):
        tetris.shape(s_block_standing)
    elif (tetris.shape(invert_s_block_normal)):
        tetris.shape(invert_s_block_standing)
    elif (tetris.shape(line_normal)):
        tetris.shape(line_standing)
    elif (tetris.shape(l_block_normal)):
        tetris.shape(l_block_left)
    elif (tetris.shape(t_block_normal)):
        tetris.shape(t_block_left)
    elif (tetris.shape(j_block_normal)):
        tetris.shape(j_block_left)
    elif (tetris.shape(l_block_left)):
        tetris.shape(l_block_180)
    elif (tetris.shape(t_block_left)):
        tetris.shape(t_block_180)
    elif (tetris.shape(j_block_left)):
        tetris.shape(j_block_180)
    elif (tetris.shape(s_block_standing)):
        tetris.shape(s_block_normal)
    elif (tetris.shape(invert_s_block_standing)):
        tetris.shape(invert_s_block_normal)
    elif (tetris.shape(line_standing)):
        tetris.shape(line_normal)
    elif (tetris.shape(l_block_180)):
        tetris.shape(l_block_right)
    elif (tetris.shape(t_block_180)):
        tetris.shape(t_block_right)
    elif (tetris.shape(j_block_180)):
        tetris.shape(j_block_right)
    elif (tetris.shape(l_block_right)):
        tetris.shape(l_block_normal)
    elif (tetris.shape(t_block_right)):
        tetris.shape(t_block_normal)
    elif (tetris.shape(j_block_right)):
        tetris.shape(j_block_normal)
    tetris.showturtle()
'''
def (fast_down):
    global tetris
    tetris.setheading(270)
    tetris.forward(10)
'''
 
 
 
#turn right
def turn_right():
    tetris.speed("fastest")
    tetris.setheading(0)
    tetris.speed(1)
    tetris.forward(10)
    tetris.speed("fastest")
    tetris.setheading(270)
#turn left
def turn_left():
    tetris.speed("fastest")
    tetris.setheading(180)
    tetris.speed(1)
    tetris.forward(10)
    tetris.speed("fastest")
    tetris.setheading(270)
 
#down
 
#tetris container/backround
drawer.pensize(5)
drawer.speed("fastest")
drawer.penup()
drawer.goto(150, 200)
drawer.pendown()
 
drawer.setheading(270)
drawer.forward(400)
drawer.setheading(180)
drawer.forward(300)
drawer.setheading(90)
drawer.forward(400)
drawer.hideturtle()
 
#game WIP!!!!!!!!!!
y = 0
space = int(1)
tracer = True
def spawn_T():
    new_T=rand.choice(Tshape)
    tetris.shape(t_block_180)
    tetris.pu()
    tetris.goto(0, 200)
    tetris.setheading(270)
    tetris.forward(10)
    '''
    if ((abs(space - starty)) < 200):
        tetris.forward(2)
    else:
    '''
    tetris.stamp()
    '''
    space = space =  1
    '''
    tetris.hideturtle()
    tetris.goto(0,200)
    tetris.showturtle()
   
 
 
if (y == 0):
    spawn_T()
 
#changeing the directions of the sprites
 
#events
 
wn.onkeypress(turn_right, "Right")
wn.onkeypress(turn_left, "Left")
wn.onkeypress(sprite_right, "a")
wn.onkeypress(sprite_left, "d")
'''
wn.onkeypress(fast_down, "s")
'''
wn.listen()
 
wn.mainloop()

這是谷歌驅動器檔案https://drive.google.com/drive/folders/1Q_zXEqm4aFHQ4RV-ZvEXCK2Wi7SHMxrW?usp=share_link

uj5u.com熱心網友回復：

我認為這里的縮進是錯誤的。也許嘗試將最后一個 else 陳述句放在一個選項卡上？

uj5u.com熱心網友回復：

請使用elif代替else: if公式來擺脫令人眼花繚亂的壓痕 - 這是它的外觀：

def sprite_right():
    global tetris
    tetris.hideturtle()
    if (tetris.shape(s_block_normal)):
        tetris.shape(s_block_standing)
    elif (tetris.shape(invert_s_block_normal)):
        tetris.shape(invert_s_block_standing)
    elif (tetris.shape(line_normal)):
        tetris.shape(line_standing)
    elif (tetris.shape(l_block_normal)):
        tetris.shape(l_block_right)
    elif (tetris.shape(t_block_normal)):
        tetris.shape(t_block_right)
    elif (tetris.shape(j_block_normal)):
        tetris.shape(j_block_right)
    elif (tetris.shape(l_block_right)):
        tetris.shape(l_block_180)
    elif (tetris.shape(t_block_right)):
        tetris.shape(t_block_180)
    elif (tetris.shape(j_block_right)):
        tetris.shape(j_block_180)
    elif (tetris.shape(s_block_standing)):
        tetris.shape(s_block_normal)
    elif (tetris.shape(invert_s_block_standing)):
        tetris.shape(invert_s_block_normal)
    elif (tetris.shape(line_standing)):
        tetris.shape(line_normal)
    elif (tetris.shape(l_block_180)):
        tetris.shape(l_block_left)
    elif (tetris.shape(t_block_180)):
        tetris.shape(t_block_left)
    elif (tetris.shape(j_block_180)):
        tetris.shape(j_block_left)
    elif (tetris.shape(l_block_left)):
        tetris.shape(l_block_normal)
    elif (tetris.shape(t_block_left)):
        tetris.shape(t_block_normal)
    elif (tetris.shape(j_block_left)):
        tetris.shape(j_block_normal)
                                                                            
    tetris.showturtle()
 
def sprite_left():
    tetris.hideturtle()
    if (tetris.shape(s_block_normal)):
        tetris.shape(s_block_standing)
    elif (tetris.shape(invert_s_block_normal)):
        tetris.shape(invert_s_block_standing)
    elif (tetris.shape(line_normal)):
        tetris.shape(line_standing)
    elif (tetris.shape(l_block_normal)):
        tetris.shape(l_block_left)
    elif (tetris.shape(t_block_normal)):
        tetris.shape(t_block_left)
    elif (tetris.shape(j_block_normal)):
        tetris.shape(j_block_left)
    elif (tetris.shape(l_block_left)):
        tetris.shape(l_block_180)
    elif (tetris.shape(t_block_left)):
        tetris.shape(t_block_180)
    elif (tetris.shape(j_block_left)):
        tetris.shape(j_block_180)
    elif (tetris.shape(s_block_standing)):
        tetris.shape(s_block_normal)
    elif (tetris.shape(invert_s_block_standing)):
        tetris.shape(invert_s_block_normal)
    elif (tetris.shape(line_standing)):
        tetris.shape(line_normal)
    elif (tetris.shape(l_block_180)):
        tetris.shape(l_block_right)
    elif (tetris.shape(t_block_180)):
        tetris.shape(t_block_right)
    elif (tetris.shape(j_block_180)):
        tetris.shape(j_block_right)
    elif (tetris.shape(l_block_right)):
        tetris.shape(l_block_normal)
    elif (tetris.shape(t_block_right)):
        tetris.shape(t_block_normal)
    elif (tetris.shape(j_block_right)):
        tetris.shape(j_block_normal)
                                                                            
    tetris.showturtle()

也就是說，因為這是您提供的所有代碼，所以無法運行它并檢查它為什么不起作用。您能否提供一個實作這些功能的示例？

uj5u.com熱心網友回復：

根據檔案，shape()回傳不帶引數的當前形狀，并用一個引數設定它。因此在：

if tetris.shape(s_block_normal):

shape(name)回傳None，總是如此False。因此，如果您更改為：

if tetris.shape() == s_block_normal:

它應該按要求運行。

此外，您可以通過以下方式完全擺脫if梯子：

next_left_shape = {s_block_normal:        s_block_standing,
                   invert_s_block_normal: invert_s_block_standing,
                   ... }
tetris.shape(next_left_shape[tetris.shape()])

轉載請註明出處，本文鏈接：https://www.uj5u.com/yidong/530955.html

標籤：Pythonpython-3.x

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