kudos  127
Recognized Expert New Member -
import Tkinter
-
import random
-
-
root = Tkinter.Tk()
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w = Tkinter.Canvas(root, width=400, height=300, background="#000000")
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w.create_text(200,150,text="Happy Christmas 2006",font="Arial 20",fill="#ff0000")
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w.create_text(200,170,text="from kudos",font="Arial 12",fill="#00ff00")
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w.pack()
-
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flake = [];
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moves = []
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for i in range(50):
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flake.append(w.create_text(random.randrange(400),random.randrange(300),text="*",fill="#ffffff",font="Times 30"))
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moves.append([0.04 + random.random()/10,0.7 + random.random()])
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try:
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while 1:
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for i in range(len(flake)):
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p = w.coords(flake[i])
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p[0]+=moves[i][0]
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p[1]+=moves[i][1]
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w.coords(flake[i],p[0],p[1])
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if(p[1]>310):
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w.coords(flake[i],random.randrange(400),-10)
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root.update_idletasks() # redraw
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root.update() # process events
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except:
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pass
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run it on your computer..
-best wishes kudos
2 9007  bartonc 6,596
Recognized Expert Expert
Very cool! Thanks kudos. Happy Christmas to you, too.
Nice, elegant piece of software, my friend. Keep posting,
Barton
 kudos 127
Recognized Expert New Member
Hi,
yeah true, it would be a problem if the try except would be inside the while loop, but since it outside, I guess the only Tclerror you going to get is when the window is closed. But I really haven't used Tcl much, not even when programming applications on IRIX and Solaris (used Xlib) -
import Tkinter
-
import random
-
-
root = Tkinter.Tk()
-
w = Tkinter.Canvas(root, width=400, height=300, background="#000000")
-
w.create_text(200,150,text="Happy Christmas 2006",font="Arial 20",fill="#ff0000")
-
w.create_text(200,170,text="from kudos",font="Arial 12",fill="#00ff00")
-
w.pack()
-
-
flake = [];
-
moves = []
-
for i in range(50):
-
flake.append(w.create_text(random.randrange(400),random.randrange(300),text="*",fill="#ffffff",font="Times 30"))
-
moves.append([0.04 + random.random()/10,0.7 + random.random()])
-
try:
-
while 1:
-
for i in range(len(flake)):
-
p = w.coords(flake[i])
-
p[0]+=moves[i][0]
-
p[1]+=moves[i][1]
-
w.coords(flake[i],p[0],p[1])
-
if(p[1]>310):
-
w.coords(flake[i],random.randrange(400),-10)
-
root.update_idletasks()
-
root.update()
-
except Tkinter.TclError:
-
pass
-
(there is a tiny fix)
-kudos
I like it! It would have taken me a while to figure on using that error type. Thanks kudos. The critique is more for the benefit of others reading this.
But what happens if you get a tcl error? No window? No way to stop it?
These are mostly academic questions because (as you say) you don't us Tk much, but good for us to think about. I'm not actually going to break my tk installation to test it.
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