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+--- Thread: use classes in tkinter canvas (/thread-15151.html)
use classes in tkinter canvas - fardin - Jan-06-2019
I am trying to use classes to create ovals(circles) in canvas. I am a beginner and came with the following code. But the ball does not show and it does not move. I placed prints in between codes to see which codes get executed. Can someone tell me how I could fix this. Thanks
from tkinter import *
import random
import time
tk =Tk()
tk.title("classy collision detection")
width = 700
height = 500
x1, y1 = 10, 10
x2, y2 = 60, 60
canvas = Canvas(tk, width=width, height=height, bg='pink')
canvas.pack()
xspeed = 10
yspeed = 10
class Ball:
def __init__(self, ball, colors):
self.ball = ball
self.colors = random.choice(["red", "blue", "green", \
"yellow", "brown", "cyan"])
self.colors.pack()
ball = canvas.create_oval(x1, y1, x2, y2, fill = colors)
ball.pack()
print("y")
def move_ball(self):
print("s")
canvas.move(ball, xspeed, yspeed)
print("h")
move = Ball.move_ball
move
print("k")
tk.update()
time.sleep(0.05)
canvas.mainloop()
RE: use classes in tkinter canvas - Larz60+ - Jan-06-2019
Forgive me for cleaning up a bit:
from tkinter import *
import random
import time
class Ball:
def __init__(self, parent):
self.parent = parent
self.parent.title("classy collision detection")
self.canvas = Canvas(parent, width=700, height=500, bg='pink')
self.canvas.pack()
self.xspeed, self.yspeed = 10, 10
self.ball = self.add_ball()
for x in range(20):
self.move_ball()
self.parent.update()
time.sleep(0.05)
def add_ball(self):
x1, y1 = 10, 10
x2, y2 = 60, 60
colors = random.choice(["red", "blue", "green",
"yellow", "brown", "cyan"])
ball = self.canvas.create_oval(x1, y1, x2, y2, fill = colors)
return ball
def move_ball(self):
self.canvas.move(self.ball, self.xspeed, self.yspeed)
def main():
root = Tk()
ball = Ball(root)
root.mainloop()
if __name__ == '__main__':
main()
RE: use classes in tkinter canvas - fardin - Jan-06-2019
Thank you very much Larz60+