Emscripten support

[dxdxdt]

Sharing my experimental Emscripten target support. Try it out:

https://snart.me/demos/emscripten/ft2-clone/

vær så god!

[8bitbubsy]

I mean, cool and all, but the mouse pointer has coordinate mapping issues for me on your web test link. It makes it quite unusable so far...

[dxdxdt]

@8bitbubsy well, that's not the only problem(as per the notes). The mapping issue must be both from the scaling factor and canvas event translation. I know I'm still taking baby steps. Just wanted to get your attention and see if the Emscripten support is something you'd be interested. I don't mind maintaining a separate fork. Close the PR if you think it's not worth it. Leave it open if it looks promising.

Well, I've never used the original FT myself, but I quite don't understand why ft2-clone is so reliant on mouse when the original is from the 90's. Just a thought, not trying to troll or anything.

[8bitbubsy]

As long as it's a nice and simple patch that doesn't change the behavior of the FT2 clone on other platforms, I'll merge it eventually if you manage to iron out the bugs. :)

The FT2 clone is reliant on the mouse just like original FT2, simply because it tries to be a copy of FT2. If you want less mouse-driven trackers, there are probably some alternatives out there.