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Nov 8th, 2009
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fileIO & pygame help

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I am trying to make pygame draw a shape from a list of shapes imported with fileIO but i get a pygame import error please help

Python Syntax (Toggle Plain Text)
  1. import random
  2. import pygame
  3. w = 640
  4. h = 480
  5.  
  6. x = open("shapes.txt")
  7. z = x.readlines()[n]
  8. n = random.randrange(6)
  9.  
  10. screen = pygame.display.set_mode((w, h))
  11. pygame.draw.z(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
  12.  
  13. for event in pygame.event.get():
  14.         if event.type == QUIT:
  15.             exit()
this is my my "shapes.txt"

circle
rect
line
line
rect
circle
Attached Files
File Type: txt shapes.txt (38 Bytes, 10 views)
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Newbie Poster
CurtisEClark is offline Offline
12 posts
since Sep 2009
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Nov 8th, 2009
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Re: fileIO & pygame help
say if n was circle, this is what python interprets:

python Syntax (Toggle Plain Text)
  1. pygame.draw."circle"(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )

now thats not code; its a string. you could add if statements like so:

python Syntax (Toggle Plain Text)
  1. if z == 'circle':
  2.     pygame.draw.circle(arguements_go_here)
  3. elif z == 'line':
  4.     # code for drawing line here
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Junior Poster in Training
fallopiano is offline Offline
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Nov 8th, 2009
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Re: fileIO & pygame help
Python Syntax (Toggle Plain Text)
  1. import random
  2. import pygame
  3. w = 640
  4. h = 480
  5.  
  6. n = random.randrange(6)
  7. x = open("shapes.txt")
  8. z = x.readlines()[n]
  9.  
  10. screen = pygame.display.set_mode((w, h))
  11. if z == "circle":
  12.     pygame.draw.circle(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
  13. elif z == "line":
  14.     pygame.draw.line(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
  15. elif z == "rect":
  16.     pygame.draw.rect(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
  17.  
  18.  
  19.  
  20. for event in pygame.event.get():
  21.         if event.type == QUIT:
  22.             exit()

my new code but i get this error now

Message File Name Line Position
Traceback
<module> C:\Users\Curtie\Desktop\HomeWork\CSET\codes\assignment_11\assignment_11.py 2
<module> L:\PortableApps\PortablePython_1.1_py3.0.1\App\lib\site-packages\pygame\__init__.py 95
ImportError: DLL load failed: The specified module could not be found.
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Newbie Poster
CurtisEClark is offline Offline
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Nov 9th, 2009
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Re: fileIO & pygame help
try

python Syntax (Toggle Plain Text)
  1. import pygame
  2. from pygame.locals import *

if that doesn't work, make sure you have the pygame that matches up with your version of python
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Junior Poster in Training
fallopiano is offline Offline
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Nov 9th, 2009
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Re: fileIO & pygame help
also, if that fails, try reinstalling your version of pygame
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Junior Poster in Training
fallopiano is offline Offline
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Nov 9th, 2009
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Re: fileIO & pygame help
Quick hint: Instead of the condition cascade
Python Syntax (Toggle Plain Text)
  1. if z == "circle": ... elif ...
consider a more pythonically succinct approach:
Python Syntax (Toggle Plain Text)
  1. assert n in ('circle', 'line', 'rect')
  2. draw = getattr(pygame.draw, n)
  3. draw(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
Last edited by pythopian; Nov 9th, 2009 at 11:43 am.
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pythopian is offline Offline
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Re: fileIO & pygame help
ive reinstalled python and pygame ive added the
Python Syntax (Toggle Plain Text)
  1.  import pygame
  2. from pygame.locals import *
with no results....i am using 3.01. it works in 2.61 but i am required to use 3.01 does anyone else no what might be causing this?
also its in just the import pygame function as i have tested just running that and get the same error code
Last edited by CurtisEClark; Nov 9th, 2009 at 3:39 pm.
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CurtisEClark is offline Offline
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Nov 10th, 2009
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Re: fileIO & pygame help
Python Syntax (Toggle Plain Text)
  1. import random
  2. import pygame
  3.  
  4. w = 640
  5. h = 480
  6.  
  7. n = random.randrange(6)
  8. x = open("shapes.txt")
  9. z = x.readlines()[n]
  10.  
  11.  
  12.  
  13. screen = pygame.display.set_mode((w, h))
  14. if z == "circle":
  15.     pygame.draw.circle(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 100 )
  16. elif z == "line":
  17.     pygame.draw.line(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 100 )
  18. elif z == "rect":
  19.     pygame.draw.rect(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 100 )
This code works in 2.6.1 but when there are no shapes just a black screen, is there a way to fix this?
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CurtisEClark is offline Offline
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Nov 10th, 2009
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Re: fileIO & pygame help
Python Syntax (Toggle Plain Text)
  1. import random
  2. import pygame
  3.  
  4. w = 640
  5. h = 480
  6.  
  7. n = random.randrange(6)
  8. x = open("shapes.txt")
  9. z = x.readlines()[n]
  10.  
  11.  
  12.  
  13. screen = pygame.display.set_mode((w, h))
  14. if "circle" in z:
  15.     pygame.draw.circle(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
  16. elif "line" in z:
  17.     pygame.draw.line(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
  18. elif "rect" in z:
  19.     pygame.draw.rect(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )

I've fixed the main problem but now i get

Traceback (most recent call last):
File "<string>", line 244, in run_nodebug
File "C:\Users\Curtie\Desktop\HomeWork\CSET\codes\assignment_11\assignment_112.py", line 17, in <module>
pygame.draw.line(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
TypeError: Invalid end position argument
>>>
Traceback (most recent call last):
File "<string>", line 244, in run_nodebug
File "C:\Users\Curtie\Desktop\HomeWork\CSET\codes\assignment_11\assignment_112.py", line 19, in <module>
pygame.draw.rect(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 50 )
TypeError: Rect argument is invalid
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CurtisEClark is offline Offline
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Nov 10th, 2009
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Re: fileIO & pygame help
Click to Expand / Collapse  Quote originally posted by CurtisEClark ...
Python Syntax (Toggle Plain Text)
  1. import random
  2. import pygame
  3.  
  4. w = 640
  5. h = 480
  6.  
  7. n = random.randrange(6)
  8. x = open("shapes.txt")
  9. z = x.readlines()[n]
  10.  
  11.  
  12.  
  13. screen = pygame.display.set_mode((w, h))
  14. if z == "circle":
  15.     pygame.draw.circle(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 100 )
  16. elif z == "line":
  17.     pygame.draw.line(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 100 )
  18. elif z == "rect":
  19.     pygame.draw.rect(screen, (random.randrange(255), random.randrange(255), random.randrange(255)), (random.randrange(640), random.randrange(480)), 100 )
This code works in 2.6.1 but when there are no shapes just a black screen, is there a way to fix this?
You need to read the pygame manual!

Drawing a line, circle or rectangle takes different arguments. They all have screen and color in common, but then they diverge. A line takes 2 coordinate points for start and end of line. A circle takes one coordinate point for the center and a radius value. The rectangle takes diagonal corner coordinates.

You also need to call
pygame.display.flip()
for anything to show

... and last not least an event loop at the end.
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