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ROADMAP: Large New Development Projects
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- Digital logic + lighting via optics.
	- Need a way to make glass.
		- Heat in furnace?
		- Environment, lightning?
	- Lenses
		- 1 input face, 1 output face opposite.
		- Focus sunlight or max light src into a beam for prism feed.
		- When fed by prism, diffuse light and act as light source.
		- Focused light right at output applies heat
			- Easy fire starting?
				- From sunlight
				- From prism beam, 2 lenses in series
			- Optical heat transforms, create glass?
	- Prism Node
		- 2 faces (back, left) are VCC faces, either must be fed light to do anything.
		- 2 faces (front, right) are output faces, emit collimated light.
		- 2 faces (top, bottom) are interference faces, switch off output if fed light.
		- Create a tiny light source (airlike) wherever prism beams hit, if not another prism.
		- Beams can pass through one another.
	- Piezo Crystal Node
		- Emits light briefly when punched or stepped on
		- Need to interpolate player paths for "stepped on" logic
	- Perpetual light source
		- Stable optical loops?
	- Pistons or rack&pinions for affecting world stuff.

- Domain Wall Sensor (adapt from sztest)

- Threats
	- Visceral
		- Flammable gas?  Toxic gas?  Radioactives?
		- Monsters: stone-lurkers, mimics.
		- Lightning, meteor strikes?
	- Creeping
		- Cellular automata hazards.
		- From exploration, deliving too deep, leaving things to rot, etc.
		- Blights, fungi
	- Latent
		- Respawn mechanics?

- Water and lava surface springs.
	- Access to water for forges.
	- Access to lava for lighting, firestarting.

- New materials to craft with.
	- Dungeon materials, stonework?
	- Decorations for dungeons
	- Tree sap from stumps? Resin? Rubber? Shellac?
	- Small plants? Reeds? Mallows?
	- Sea stars, anenome, coral, other underwater things?
	- Fungi, esp. tree-destroying ones, blight?
	- Oil, natural gas?  Fossils and fossil fuels?
	- Geode, hydra crystals, radioactives?
	- Shipwrecks or alien tech
	- Slow-moving animals? Snails? Miniature spice worms?
	- Non-portable things, like "spawners" or wormholes
	- Tubers and taproots, cacti, and other "defensive" plantlife
	- Plant-like CA animals, like bee nests and clouds of bees?
	  Termine mounds? Ant colonies? Coral?

- System for transporting cargo.
	- Trains of minecarts?
	- Conveyors, elevators?

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