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imakesnowflakes
This is a follow-up to my earlier submission, https://news.ycombinator.com/item?id=8427086, which was a very rough simulation of a sail boat. I have re-written it using webgl, so we now have a lot more particles (nearly 1M) in the wind. I have also disabled the controls to turn the boat directly, instead added a rudder that you can use to turn the boat while it is moving.
ceeK
I can't seem to turn the sail on a mac. Cmd+left/right doesn't work, and Ctrl+left/right switches desktops.
imakesnowflakes
I have changed the controls to q/w and o/p for rudder control and sail control respectively, as per a request from a Mac user. You should be able to use it now...
mod
If something is changing on the animation, I can't tell.

One of the four control buttons has functionality (I was increasing the rudder angle, I believe).

mod
Also doesn't reset, even when the boat leaves the screen (or hits the purple lines).

Yeah, I'm not good.

Your first submission, I was much better that time.

imakesnowflakes
It won't reset until the sail's pivot point has crossed the purple lines. You are right about it not resetting when leaving the screen.I missed that..

Thanks for taking a look. :)

imakesnowflakes
Not sure I follow you. Do you mean you can't tell if the sail and rudder are responding to key presses?
mod
They weren't, originally. They were shortly thereafter.