On Wed, Aug 27, 2008 at 6:17 PM, _why <[EMAIL PROTECTED]> wrote:
> On Wed, Aug 27, 2008 at 10:00:58AM -0400, Nick Quaranto wrote:
>> Hi everyone, over the past few days I've been working on a clone of Snake
>> for Shoes. The game is definitely working, and I'd appreciate any feedback
>> that you're willing to give. I'm also running into some slowdown issues as
>> players get snakes that are pretty huge, and the game seems to run slower as
>> someone keeps on playing it. If anyone can help with these issues I'd love
>> to pull your changes :)
>
> Hey, great work! I have a few suggestions for how you can speed
> things up.
>
> Probably the way to make things the fastest is to draw on to an
> image surface. This ends up faster because you don't wind up
> creating a bunch of Ruby objects for every shape you draw.
>
> Basically, here's how to do it:
>
> 1. In app.rb, change `Field.new(self)` to
> `Field.new(image(400, 400))`.
> 2. In field.rb, change [EMAIL PROTECTED] black` to
> [EMAIL PROTECTED] "#000"`.
>
> That just creates a 400px by 400px image surface for you to paint
> on.
>
> Now, as alluded, the real reason it's running slow is because Ruby
> objects are piling up. All the old rectangles are still sitting
> around every time the snake is drawn. These need to be cleared out.
> (Unless you use an image surface, as shown above.)
>
> So, basically, if you stick with the technique you're using right
> now, you'll need to call [EMAIL PROTECTED] every time you repaint and
> then redraw all the shapes from there.
>
> _why
>
Hi,
I just started with shoes some days ago and I would be glad if anybody
could help me about how to get the painting on an image surface to
work. I tried with the following code, but it doesn't seem to do what
I expected:
Shoes.app do
@img = image(400,400)
@img.fill black
animate do
@img.rect 10, 10, 20, 20
end
end
What am I doning wrong?
(I want to draw 1000s of tiny boxes / pixels per animation cycle
later, so this is why I am trying to use an image surface for it.)
Thanks,
Erik.
