Python Paddleball Game


#1

I have been trying to make this game... It's not in Codecademy, but I need some help. I'm trying to create a delay but .time() isn't working.
F.Y.I. none of the code is wrong. Just need some ideas and help.

from Tkinter import *
import random
import time

time.sleep(10)
class Ball:
    def __init__(self, canvas, paddle, color):
        self.canvas = canvas
        self.paddle = paddle
        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 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 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 pos[3] >= self.canvas_height:
            self.hit_bottom = True
        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:
    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 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

    def turn_left(self,evt):
        self.x = -500

    def turn_right(self,evt):
        self.x = 500


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()

paddle = Paddle(canvas, "blue")
ball = Ball(canvas,paddle,"red")

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

Sorry about the formatting I don't know how to do it the best.


#2

@drewteriyaki,

Please re-edit your Post

  • leave one blank-line above of your code
  • select your code in the Post
  • then =click= on the </>-symbol-of-this-editor

Your code will then be in a pre-code state
and you will be able to make/present the proper indentations.

or even better use
= http://discuss.codecademy.com/t/using-backticks-to-format-your-code/3697/2
[extra's]
https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet


#4

Hey, @drewteriyaki!
First to say this is a really interesting code and the fact you're working with GUI is fantastic!

Your time() functions are working, there isn't a problem with that.
I, personally, didn't know you could use it, and it would work, way before class definitions and such, good to know!

Are you sure the code you've posted is correct?
Because I'm getting the error list index out of range

Error message image (for some reason, I couldn't upload a picture here)

I'd suggest you to give it a check on what you're actually trying to do, maybe you're trying to access a position who's yet not on your list.

Other than that, I can't see what else it could be wrong but hey, you're doing a really good job! :+1:


#5

This is my new code with the delay function.

from Tkinter import *
import random
import time

print "READY"
time.sleep(1)
print "SET"
time.sleep(1)
print "GO"
print ">:)"

class Ball:
    def __init__(self, canvas, paddle, color):
        self.canvas = canvas
        self.paddle = paddle
        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 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 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 pos[3] >= self.canvas_height:
            self.hit_bottom = True
        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:
    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 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
    def turn_left(self, evt):
        self.x = -2
    def turn_right(self, evt):
        self.x = 2
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()
paddle = Paddle(canvas, 'blue')
ball = Ball(canvas, paddle, 'red')
while 1:
    if ball.hit_bottom == False:
        ball.draw()
        paddle.draw()
    tk.update_idletasks()
    tk.update()
    time.sleep(0.01)