[WIP] Mine to the sky

[Kelvin]

The new way looks better when dealing with large chunks, but I like how the outer blocks are lit better. Dunno if I'd do it with the background tiles, though, since you're supposed to be able to see them. Maybe come up with a smoother texture? I do think the darkness helps with making digging more interesting; you can't see the resources until they're on the edge, so it feels a bit more Minecrafty.