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Re: Question re: objects and square grids

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  Re: Question re: objects and square grids Andrew Bradley <abradley201@gmail.com> - 2013-05-15 20:53 -0400
    Re: Question re: objects and square grids Larry Hudson <orgnut@yahoo.com> - 2013-05-15 23:54 -0700

#45385 — Re: Question re: objects and square grids

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>
>
>  SQUARESIZE = 43
>>>
>>> grid = []
>>> for row in range(10):
>>>      row_squares = []
>>>      for column in range(20):
>>>          rect = Rect(12 + column * SQUARESIZE, 10 + row * SQUARESIZE,
>>> SQUARESIZE, SQUARESIZE)
>>>          row_squares.append(rect)
>>>      grid.append(row_squares)
>>>
>>> It appears to be working (that is, the program still runs without
>>> crashing).
>>>
>>
> Sorry, but that's no criteria.  Question is whether it's doing what you
> want.  Are the rows 20 across and are there 10 of them?  Do the values of
> each individual rect look right?  print is your friend.


Yes, I have gotten rid of that part with the 1, 2, 3, 4, etc., and now the
code appears to be working up to [9][19]. Thank you very much. The
coordinates all do look correct, and there are 200 rectangles when I do
list(grid).

>
>
>  So now, how can I utilize this new grid list? Thank you for the
>>> help so far, I feel like the entire grid is now being worked out.
>>> -Andrew
>>>
>>>
> That's a Pygame question, and I told you at the beginning, I can't really
> help with that.  I'd like to learn, but not this week.
>
> Others - can you show some minimal code to use these grid parameters to
> color selected squares of the pygame window?
>
>
Yes, I would very much like some help or general advice now about utilizing
this grid thing. How can I refer to these square's new numerical values to
do things with them? Will I be using things like "grid[0][1]" in specific
functions and methods to refer to squares now? That is what I would like to
do, somehow.

>
> --
> DaveA
> --
> http://mail.python.org/**mailman/listinfo/python-list<http://mail.python.org/mailman/listinfo/python-list>
>

I apologize if these questions are too rudimentary--I am trying to wrap my
head around how this language works in a more general sense so I can start
applying it to things.
-Andrew

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#45406

On 05/15/2013 05:53 PM, Andrew Bradley wrote:
<snip>

> I apologize if these questions are too rudimentary--I am trying to wrap my head around how this
> language works in a more general sense so I can start applying it to things.
> -Andrew

Check out the book "Making Games with Python & Pygame" at http://inventwithpython.com/pygame/
It's a book you can buy or you can download the pdf or e-reader versions for free.

Also on the same site, "Invent Your Own Computer Games with Python"

Both are pretty good introductions to Python programming, "Invent..." is for non-graphic games, 
and may be the better to start with.  Don't try to get too advanced too fast -- you'll only get 
frustrated and discouraged.  But definitely do keep at it -- it's well worth the effort.

      -=- Larry -=-

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