Python tkinter遊戲碰撞

Question

我無法正確地讓球響應槳和牆。由箭頭鍵和球控制的右槳按預期移動，但左槳沒有移動。 球應該從頂部和底部的牆壁和槳葉反彈。它目前從側壁反彈而忽略槳。 關於如何解決它的任何建議？

from tkinter import * 
import random 
import time 

class Ball: 
    def __init__(self, canvas, paddle_1, paddle_2, color): 
     self.canvas = canvas 
     self.paddle_1 = paddle_1 
     self.paddle_2 = paddle_2 
     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_left = False 
     self.hit_right = False 

    def hit_paddle(self, pos): 
     paddle_pos_1 = self.canvas.coords(self.paddle_1.id) 
     if pos[0] <= paddle_pos_1[1] and pos[1] <= paddle_pos_1[0]: 
      if pos[2] >= paddle_pos_1[3] and pos[2] <= paddle_pos_1[3]: 
       return True 
      return False 
     paddle_pos_2 = self.canvas.coords(self.paddle_2.id) 
     if pos[3] >= paddle_pos_2[1] and pos[1] <= paddle_pos_2[3]: 
      if pos[2] >= paddle_pos_2[0] and pos[2] <= paddle_pos_2[0]: 
       return True 
      return 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 = 1 
     if pos[3] >= self.canvas_width: 
      self.hit_right = True 
     if pos[2] <= 0: 
      self.hit_left = True 
     if self.hit_paddle(pos) == True: 
      self.y = -3 
     if self.hit_paddle(pos) == True: 
      self.y = 3 
     if pos[0] <= 0: 
      self.x = 3 
     if pos[2] >= self.canvas_width: 
      self.x = -3 

class Paddle_First: 
    def __init__(self, canvas, color): 
     self.canvas = canvas 
     self.id = canvas.create_rectangle(0, 0, 10, 100, fill=color) 
     self.canvas.move(self.id, 450, 200) 
     self.y = 0 
     self.canvas_height = self.canvas.winfo_height() 
     self.canvas.bind_all('<KeyPress-Up>', self.go_up) 
     self.canvas.bind_all('<KeyRelease-Up>', self.go_nowhere) 
     self.canvas.bind_all('<KeyPress-Down>', self.go_down) 
     self.canvas.bind_all('<KeyRelease-Down>', self.go_nowhere) 

    def draw(self): 
     self.canvas.move(self.id, 0, self.y) 

    def go_up(self, evt): 
     pos = self.canvas.coords(self.id) 
     if pos[1] < 0: 
      self.y = 0 
     else: 
      self.y = -3 

    def go_down(self, evt): 
     pos = self.canvas.coords(self.id) 
     if pos[3] > self.canvas_height: 
      self.y = 0 
     else: 
      self.y = 3 

    def go_nowhere(self, evt): 
     self.y = 0 

class Paddle_Second: 
    def __init__(self, canvas, color): 
     self.canvas = canvas 
     self.id = canvas.create_rectangle(0, 0, 10, 100, fill=color) 
     self.canvas.move(self.id, 50, 200) 
     self.y = 0 
     self.canvas_height = self.canvas.winfo_height() 
     self.canvas.bind_all('<KeyPress-W>', self.go_up) 
     self.canvas.bind_all('<KeyRelease-W>', self.go_nowhere) 
     self.canvas.bind_all('<KeyPress-S>', self.go_down) 
     self.canvas.bind_all('<KeyRelease-S>', self.go_nowhere) 

    def draw(self): 
     self.canvas.move(self.id, 0, self.y) 

    def go_up(self, evt): 
     pos = self.canvas.coords(self.id) 
     if pos[1] < 0: 
      self.y = 0 
     else: 
      self.y = -3 

    def go_down(self, evt): 
     pos = self.canvas.coords(self.id) 
     if pos[3] > self.canvas_height: 
      self.y = 0 
     else: 
      self.y = 3 

    def go_nowhere(self, evt): 
     self.y = 0 

def game(): 
    w = 0 
    v = 0 
    canvas.delete(button_window) 
    timer1 = time.time() 
    while 1: 
     if ball.hit_right == False and ball.hit_left == False: 
      ball.draw() 
      paddle_1.draw() 
      paddle_2.draw() 
     root.update_idletasks() 
     root.update() 
     time.sleep(0.01) 
     if ball.hit_left == True: 
      v = 1 
      break 
     if ball.hit_right == True: 
      w = 1 
      break 
    canvas.delete("all") 
    canvas.create_text(250, 150, font="Arial 70", text="Game Over") 
    if w == 1: 
     canvas.create_text(250, 300, font="Times 48", text='Left Wins!') 
    if v == 1: 
     canvas.create_text(250, 300, font="Times 48", text='Right Wins!') 

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

canvas.pack() 
root.update() 

paddle_1 = Paddle_First(canvas, 'blue') 
paddle_2 = Paddle_Second(canvas, 'blue') 
ball = Ball(canvas, paddle_1, paddle_2, 'red') 

button_start = Button(master=None, font="Times 80", text="Start?", command=game) 
button_window = canvas.create_window(250, 100, anchor=N, window=button_start) 

Answer 1

我不確定，但Tkinter綁定需要您在函數中使用evt，並且您沒有在函數中使用evt。

def go_up(self, evt): 
    if evt.keysym == 'Up': 
     pos = self.canvas.coords(self.id) 
     if pos[1] < 0: 
      self.y = 0 
     else: 
      self.y = -3 

def go_down(self, evt): 
    if evt.keysym = 'Down': 
     pos = self.canvas.coords(self.id) 
     if pos[3] > self.canvas_height: 
      self.y = 0 
     else: 
      self.y = 3 

def go_nowhere(self, evt): 
    if evt.keysym == 'Up' or event.keysym == 'Down': 
     self.y = 0