CSC111 Lab 8 Solution Programs
movingBall5.py
# movingBall5.py
# D. Thiebaut
from graphics import *
import random
#--- the dimensions of the window ---
W = 300
H = 300
#--- the hole, at (50, 50), and 50 high, 50 wide...
HOLEX = 50
HOLEY = 50
HOLEW = 50
HOLEH = 50
#----------------------------------------------------------------
def isInHole( c, dx, dy ):
r = c.getRadius()
center = c.getCenter()
x = center.getX()
y = center.getY()
if ( HOLEX + r <= x <= HOLEX + HOLEW - r ) \
and ( HOLEY + r <= y <= HOLEY + HOLEH -r ):
return True
else:
return False
#----------------------------------------------------------------
def simul( ballList ):
for step in range( 300 ):
for i in range( len( ballList ) ):
c, dx, dy = ballList[ i ]
if isInHole( c, dx, dy ):
ballList[ i ] = [ c, 0, 0 ]
else:
radius = c.getRadius()
x = c.getCenter().getX()
y = c.getCenter().getY()
if not ( radius <= x <= W-radius ):
dx = -dx
if not ( radius <= y <= H-radius ):
dy = -dy
c.move( dx, dy )
ballList[ i ] = [ c, dx, dy ]
#----------------------------------------------------------------
def waitForClick( win, message ):
""" waitForClick: stops the GUI and displays a message.
Returns when the user clicks the window. The message is erased."""
# wait for user to click mouse to start
startMsg = Text( Point( win.getWidth()/2, win.getHeight()/2 ), message )
startMsg.draw( win ) # display message
win.getMouse() # wait
startMsg.undraw() # erase
#----------------------------------------------------------------
def main():
win = GraphWin( "moving ball", W, H )
ballList = []
N = input( "How many balls should move around? " )
colors = ['LightSkyBlue1', 'LightSkyBlue2', 'LightSkyBlue3', 'LightSkyBlue4',
'light slate blue', 'LightSlateBlue', 'light slate gray', 'LightSlateGray',
'light slate grey' ]
#--- create a hole ---
R = Rectangle( Point( HOLEX, HOLEY ), Point( HOLEX+HOLEW, HOLEY+HOLEH ) )
R.setFill( "white" )
R.draw( win )
#--- define a ball position and velocity ---
for i in range( N ):
c = Circle( Point( random.randrange( W/3, 2*W/3 ),
random.randrange( H/3, 2*H/3 ) ), 15 )
c.setFill( colors[ i % len(colors) ] )
c.draw( win )
ballList.append( [ c, 3-random.randrange( 6 ), 3-random.randrange( 6 ) ] )
waitForClick( win, "Click to Start" )
simul( ballList )
waitForClick( win, "Click to End" )
win.close()
main()
stats2.py
statistics = [['Afghanistan', 28710000, 'NA', 'NA', 1], ['Albania', 3580000,
12000, 'NA', 10], ['Algeria', 32810000, 180000, 'NA', 2],
['Andorra', 69150, 24500, 'NA', 1], ['Angola', 10760000,
60000, 'NA', 1], ['Anguilla', 12738, 919, 'NA', 16],
['Antigua_and_Barbuda', 67897, 5000, 'NA', 16], ['Argentina',
38740000, 4650000, 'NA', 33], ['Armenia', 3320000, 30000, 'NA',
9], ['Aruba', 70844, 24000, 'NA', 'NA'], ['Australia', 19730000,
13010000, 9020000, 571], ['Austria', 8180000, 4650000,
1300000, 37], ['Azerbaijan', 7830000, 25000, 'NA', 2],
['Bahrain', 667238, 140200, 'NA', 1], ['Bangladesh',
138440000, 150000, 'NA', 10], ['Barbados', 277264, 6000, 'NA',
19], ['Belarus', 10330000, 422000, 'NA', 23], ['Belgium',
10280000, 4870000, 1600000, 61], ['Belize', 266440, 18000,
'NA', 2], ['Benin', 7040000, 25000, 'NA', 4], ['Bhutan',
2130000, 2500, 'NA', 'NA'], ['Bolivia', 8580000, 78000, 'NA', 9],
['Bosnia_and_Herzegovian', 3980000, 45000, 'NA', 3],
['Botswana', 1570000, 33000, 'NA', 11], ['Brazil', 182030000,
22320000, 10860000, 50], ['Brunei', 358098, 35000, 'NA', 2],
['Bulgaria', 7530000, 1610000, 'NA', 200], ['Burkina_Faso',
13220000, 25000, 'NA', 1], ['Burma', 42510000, 10000, 'NA', 1],
['Burundi', 6090000, 6000, 'NA', 1], ['Cambodia', 13120000,
10000, 'NA', 2], ['Cameroon', 15740000, 45000, 'NA', 1] ]
def main():
popCount = 0
userCount = 0
for country, pop, users, active, isp in statistics:
print "%30s (%d habitants)" % (country, pop ),
print "Users=", users, " Active=", active, " ISP=", isp
popCount += pop
try:
userCount += users
except TypeError:
pass # don't do anything
print "total population = ", popCount
print "total users = ", userCount
main()
stats3.py
statistics = [['Afghanistan', 28710000, 'NA', 'NA', 1], ['Albania', 3580000,
12000, 'NA', 10], ['Algeria', 32810000, 180000, 'NA'],
['Andorra', 69150, 24500, 'NA', 1], ['Angola', 10760000,
60000, 'NA', 1], ['Anguilla', 12738, 919, 'NA', 16],
['Antigua_and_Barbuda', 67897, 5000, 'NA', 16], ['Argentina',
38740000, 4650000, 'NA', 33], ['Armenia', 3320000, 30000, 'NA',
9], ['Aruba', 70844, 24000, 'NA' ], ['Australia', 19730000,
13010000, 9020000, 571], ['Austria', 8180000, 4650000,
1300000, 37], ['Azerbaijan', 7830000, 25000, 'NA'],
['Bahrain', 667238, 140200, 'NA', 1], ['Bangladesh',
138440000, 150000, 'NA', 10], ['Barbados', 277264, 6000, 'NA',
19], ['Belarus', 10330000, 422000, 'NA', 23], ['Belgium',
10280000, 4870000, 1600000, 61], ['Belize', 266440, 18000,
'NA', 2], ['Benin', 7040000, 25000, 'NA', 4], ['Bhutan',
2130000, 2500, 'NA', 'NA'], ['Bolivia', 8580000, 78000, 'NA', 9],
['Bosnia_and_Herzegovian', 3980000, 45000, 'NA', 3],
['Botswana', 1570000, 33000, 'NA', 11], ['Brazil', 182030000,
22320000, 10860000, 50], ['Brunei', 358098, 35000, 'NA', 2],
['Bulgaria', 7530000, 1610000, 'NA', 200], ['Burkina_Faso',
13220000, 25000, 'NA'], ['Burma', 42510000, 10000, 'NA', 1],
['Burundi', 6090000, 6000, 'NA', 1], ['Cambodia', 13120000,
10000, 'NA', 2], ['Cameroon', 15740000, 45000, 'NA', 1] ]
def main():
popCount = 0
for item in statistics:
try:
country, pop, users, active, isp = item
except ValueError:
country, pop, users, active = item
print "%30s (%d habitants)" % (country, pop ),
print "Users=", users, " Active=", active, " ISP=", isp
popCount += pop
print "total population = ", popCount
main()
