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ROADMAP (SHORT-TERM)
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- Submit to ContentDB
	- Need screenshots.
- Portable containers.
	- A bag that expands when placed, if room.
	- Inventory slots around central node each holds 1 stack.
	- Dig central node to bundle up, store content in metadata.
	- Containers may have "levels" to control nesting.
- Fire tech.
	- Make fuel consumed slower by reducing flame exposure.
		- Encourages designing a better furnace.
	- Need to make lode ore require same or higher tier tools than
	  stone, not lower.  Should not be hand-diggable in any form.
	- Metal casting, annealing, tempering
		- Hammer annealed prills -> annealed metal slabs/blocks
		- Hammer annealed slabs/blocks -> annealed tool heads
		- Create and use annealed tools
		- Heat annealed tool heads -> glowing tool heads
		- Quench glowing tool heads -> tempered tool heads
		- Create and use tempered tools (much higher durability)
		- Heat tempered tools -> glowing tool heads to recycle
- Make neighbor/distance calcs consistent.
	- We're using scan_flood in some places, face checks in others,
	  and find_nodes_in_area (cuboid) in others.
	- Diamond shape would be most consistent.
	- Should require face touching, not diagonal.
- Half-slabs
	- Intermediate step between planks and tool-heads.
	- Chop dirt with an axe.
	- Hammer together 4 stones instead of 8.
	- Pummel tree from the side with a higher tier axe, stone/metal?
- Plant life stuff
	- Better tree growth, i.e. track cumulative time, apply
	  environmental factors.
	- Leaves settle into grass as podzol?  Composting/decay?
	- Dirt/sand/etc should self-compact if buried or over time.
	  OR loose dirt should grow grass.

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