Please put new comments AFTER the part you're quoting. In other words,
don't top-post. Also please trim off the stuff that's no longer
relevant, so people don't have to read through it all wondering where
your implied comments are.
On 05/15/2013 06:48 PM, Andrew Bradley wrote:
ok, now I have tested this more thoroughly, and it seems i can only do the
grid[x][y] function up to grid[9][9], when i really should be able to be
doing up to grid[10][20].
No, you shouldn't expect it to go to 10,20. Remember I said that Python
is zero-based. So it goes from 0 to 9 inclusive, and from 0 to 19
inclusive. Upper left corner is grid[0][0], while lower right is
grid[9][19]. Check to make sure that range works, which I think it will.
What exactly is the function of this row_squares list?
It's a temporary to hold one row. You could delete it after the outer
loop ends, if you like. Normally, if this whole thing were inside a
function, the variable would go away when the function ended, and you'd
be returning the grid list only.
You could have avoided the separate name by doing some tricky syntax.
But I'm trying to show you the clearest way of doing things from a
beginner perspective.
On Wed, May 15, 2013 at 4:35 PM, Andrew Bradley <abradley...@gmail.com>wrote:
Now I want to show you what I have written:
row = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
column = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 19, 20)
No point in initializing them to tuples, since you're not going to use
those. Besides, in a moment row and column become ints, and this just
confuses things. The range() function below builds a temporary list
which looks just like what you tediously typed in (except it's square
brackets instead of round).
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.
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?
--
DaveA
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