Question

我正在使用Tkinter在python中创建一个基本的破砖游戏。我已经想出了如何删除这些块，但是当球和砖发生碰撞时会出现错误。它总是说索引超出范围。任何建议都会受到欢迎。

from tkinter import *
import random
import time

tk = Tk()
tk.title("Game")
tk.resizable(0, 0)
tk.wm_attributes("-topmost", 1)
canvas = Canvas(tk, width=500, height=400, bd=0, highlightthickness=0)
canvas.pack()
tk.update()

class Ball:
    def __init__(self, canvas, paddle, block1, block2, block3, block4, block5, color):
        self.canvas = canvas
        self.paddle = paddle
        self.block1 = block1
        self.block2 = block2
        self.block3 = block3
        self.block4 = block4
        self.block5 = block5
        self.id = canvas.create_oval(10, 10, 25, 25, fill=color)
        self.canvas.move(self.id, 245, 100)
        starts = [-3, -2, -1, 1, 2, 3]
        random.shuffle(starts)
        self.x = starts[0]
        self.y = -3
        self.canvas_height = self.canvas.winfo_height()
        self.canvas_width = self.canvas.winfo_width()
        self.hit_bottom = False

    def draw(self):
        self.canvas.move(self.id, self.x, self.y)
        pos = self.canvas.coords(self.id)
        if pos[1] <= 0:
            self.y = 3
        if self.hit_paddle(pos) == True:
            self.y = -3 
        if pos[3] >= self.canvas_height:
            self.hit_bottom = True
        if pos[0] <= 0:
            self.x = 3
        if pos[2] >= self.canvas_width:
            self.x = -3
        if self.hit_block(pos) == True:
            self.y = -3


    def hit_paddle(self, pos):
        paddle_pos = self.canvas.coords(self.paddle.id)
        if pos[2] >= paddle_pos[0] and pos[0] <= paddle_pos[2]:
            if pos[3] >= paddle_pos[1] and pos[3] <= paddle_pos[3]:
                return True
        return False

    def hit_block(self,pos):
        block1_pos = self.canvas.coords(self.block1.id)
        if pos[2] >= block1_pos[0] and pos[0] <= block1_pos[2]:
            if pos[3] >= block1_pos[1] and pos[3] <= block1_pos[3]:
                self.canvas.delete(self.block1.id)
                return True

        block2_pos = self.canvas.coords(self.block2.id)
        if pos[2] >= block2_pos[0] and pos[0] <= block2_pos[2]:
            if pos[3] >= block2_pos[1] and pos[3] <= block2_pos[3]:
                self.canvas.delete(self.block2.id)
                return True

        block3_pos = self.canvas.coords(self.block3.id)
        if pos[2] >= block3_pos[0] and pos[0] <= block3_pos[2]:
            if pos[3] >= block3_pos[1] and pos[3] <= block3_pos[3]:
                self.canvas.delete(self.block3.id)
                return True

        block4_pos = self.canvas.coords(self.block4.id)
        if pos[2] >= block4_pos[0] and pos[0] <= block4_pos[2]:
            if pos[3] >= block4_pos[1] and pos[3] <= block4_pos[3]:
                self.canvas.delete(self.block4.id)
                return True

        block5_pos = self.canvas.coords(self.block5.id)
        if pos[2] >= block5_pos[0] and pos[0] <= block5_pos[2]:
            if pos[3] >= block5_pos[1] and pos[3] <= block5_pos[3]:
                self.canvas.delete(self.block5.id)
                return True
        return False




class Paddle:
    def __init__(self, canvas, color):
        self.canvas = canvas
        self.id = canvas.create_rectangle(0, 0, 100, 10, fill=color)
        self.canvas.move(self.id, 200, 300)
        self.x = 0
        self.canvas_width = self.canvas.winfo_width()
        self.canvas.bind_all('<KeyPress-Left>', self.turn_left)
        self.canvas.bind_all('<KeyPress-Right>', self.turn_right)

    def turn_left(self, evt):
        self.x = -2

    def turn_right(self, evt):
        self.x = 2

    def draw(self):
        self.canvas.move(self.id, self.x, 0)
        pos = self.canvas.coords(self.id)
        if pos[0] <= 0:
            self.x = 0
        elif pos[2] >= self.canvas_width:
            self.x = 0




class Block:
    def __init__(self, canvas, x, y, color):
        self.canvas = canvas
        self.x = int(x)
        self.y = int(y)
        self.id = canvas.create_rectangle(self.x, self.y, self.x + 50, self.y + 20, fill=color)
        self.canvas.move(self.id, self.x, self.y)




block1 = Block(canvas, 50, 50, 'orange')
block2 = Block(canvas, 90, 50, 'yellow')
block3 = Block(canvas, 130, 50, 'green')
block4 = Block(canvas, 170, 50, 'blue')
block5 = Block(canvas, 210, 50, 'violet')
paddle = Paddle(canvas, 'blue')
ball = Ball(canvas, paddle, block1, block2, block3, block4, block5,'red')



while 1:
    if ball.hit_bottom == False:
        ball.draw()
        paddle.draw()
    tk.update_idletasks()
    tk.update()
    time.sleep(0.01)

Answer 1

您的问题是，当删除某个块时，其坐标不再存在。

对于所有块，你想要做的是这样的事情：

if block1_pos and (pos[2] >= block1_pos[0] and pos[0] <= block1_pos[2]):

这将确保在检查块之前存在该块。

如何解决弹出的错误消息

1 个答案: