Archived:Displaying a bouncing ball using PySymbian

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20 Sep
2009

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Aquivado: Este artigo foi arquivado, pois o conteúdo não é mais considerado relevante para se criar soluções comerciais atuais. Se você achar que este artigo ainda é importante, inclua o template {{ForArchiveReview|escreva a sua justificativa}}.

All PySymbian articles have been archived. PySymbian is no longer maintained by Nokia and is not guaranteed to work on more recent Symbian devices. It is not possible to submit apps to Nokia Store.

This is a code snippet shows how to use the PySymbian graphics module to draw a circle that will move around the screen.

Article Metadata

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Tested with

Devices(s): Nokia N70

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Compatibility

Platform(s): S60 1st Edition, S60 2nd Edition, S60 3rd Edition

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Platform Security

Signing Required: Self-Signed

Capabilities: None

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Article

Keywords: appuifw, time, math, graphics

Created: james1980 (31 Dec 2008)

Last edited: hamishwillee (08 May 2013)

Code Snippet

import e32,random
import time
import appuifw
import graphics
import math
running=1
def quit():
    global running
    running=0
appuifw.app.exit_key_handler=quit
appuifw.app.screen='large'
can=appuifw.Canvas()
appuifw.app.body=can
j,k=can.size
dx=1
dy=1
x1=10
y1=10
while running:
    x1=x1+dx
    y1=y1+dy
    x2=x1+10
    y2=y1+10
    if x1<1:
        dx=dx*-1
    if y1<1:
        dy=dy*-1
    if x1>j-15:
        dx=dx*-1
    if y1>k-15:
        dy=dy*-1
    c=random.randrange(0xffffff)
    can.ellipse((x1,y1,x2,y2),outline=None,fill=c)
    e32.ao_sleep(.03)
    can.clear(0xffffff)
    e32.ao_yield()

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