hi there..
im not sure if you can help or you would want to but i fort i may aswell give
it a try.
i am currently trying to edit a python app
it is a normal green ball game that comes with python it uses nokia n95 accel
to move around.
i have been trying to make more than one ball on the screen at the same time .
do you think it is possable ?
i have attached the script to this e mail and would be greatful for any advice
thanks.
dean.
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# This code has been significantly modified from the original source, which
# is distributed with Nokia's Python for Series 60, by Christopher Schmidt,
# and is released under the same license as that code (see below).
#
# Copyright (c) 2008 Christopher Schmidt
# Copyright (c) 2005 Nokia Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import appuifw
from graphics import *
import e32
import sensor
class SensorConnection(object):
delta = []
def __init__(self):
"""Connect to the sensor."""
sens = sensor.sensors()['AccSensor']
self.s = sensor.Sensor(sens['id'], sens['category'])
self.s.connect(self.callme)
def callme(self, state):
self.delta = []
for key in ['data_1', 'data_2', 'data_3']:
val = state[key]
self.delta.append(int(val + 40)/80)
def cleanup(self):
"""Cleanup after yourself. *Must be called* before exiting."""
self.s.disconnect()
sense_conn = SensorConnection()
appuifw.app.screen='full'
img=None
def handle_redraw(rect):
if img:
canvas.blit(img)
appuifw.app.body=canvas=appuifw.Canvas(
redraw_callback=handle_redraw)
img=Image.new(canvas.size)
running=1
def quit():
global running
running=0
appuifw.app.exit_key_handler=quit
location=[img.size[0]/2,img.size[1]/2]
speed=[0.,0.]
blobsize=16
xs,ys=img.size[0]-blobsize,img.size[1]-blobsize
acceleration=0.05
friction = 0.993
speed=[0.,0.]
blobsize=16
xs,ys=img.size[0]-blobsize,img.size[1]-blobsize
acceleration=0.10
friction = 0.999
import time
start_time=time.clock()
n_frames=0
# To speed things up, we prerender the text.
labeltext=u'Tilt the phone to move'
textrect=img.measure_text(labeltext, font='normal')[0]
text_img=Image.new((textrect[2]-textrect[0],textrect[3]-textrect[1]))
text_img.clear(0)
text_img.text((-textrect[0],-textrect[1]),labeltext,fill=0xffffff,font='normal')
while running:
img.clear(0)
img.blit(text_img, (0,0))
img.point((location[0]+blobsize/2,location[1]+blobsize/2),
0x00ff00,width=blobsize)
handle_redraw(())
e32.ao_yield()
e32.reset_inactivity()
speed[0]*=friction
speed[1]*=friction
location[0]+=speed[0]
location[1]+=speed[1]
n_frames+=1
if not sense_conn: continue
if not len(sense_conn.delta): continue
x_bounce_factor = .8 * (1 - min(6,abs(sense_conn.delta[0])) / 9)
y_bounce_factor = .8 * (1 - min(6,abs(sense_conn.delta[1])) / 9)
if location[0]>xs:
location[0]=xs-(location[0]-xs)
speed[0]= -x_bounce_factor * speed[0]
speed[1]=0.90*speed[1]
if location[0]<0:
location[0]=-location[0]
speed[0]= -x_bounce_factor * speed[0]
speed[1]=0.90*speed[1]
if location[1]>ys:
location[1]=ys-(location[1]-ys)
speed[0]=0.90*speed[0]
speed[1]= -y_bounce_factor * speed[1]
if location[1]<0:
location[1]=-location[1]
speed[0]=0.90*speed[0]
speed[1]= -y_bounce_factor * speed[1]
speed[0] -= (sense_conn.delta[1]) * acceleration
speed[1] -= (sense_conn.delta[0]) * acceleration
speed[0] = max(min(xs / 2, speed[0]), -xs/2)
speed[1] = max(min(ys / 2, speed[1]), -ys/2)
end_time=time.clock()
total=end_time-start_time
sense_conn.cleanup()
print "%d frames, %f seconds, %f FPS, %f ms/frame."%(n_frames,total,
n_frames/total,
total/n_frames*1000.)
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