Design: tangibility of terrain

[kostmo]

As of today, terrain is both:

1. strictly cosmetic, and
2. the sole means to color an "unoccupied" cell.

For (2), this means we have a limited color palette for world aesthetics.
For (1), it means we have no way to affect a robot other than placing an entity.

Proposal

1. Add a Custom Text entry to the terrain sum type
2. Allow scenarios to define their own terrain types and attributes
3. Program special behaviors based on the hard-coded terrain types

[byorgey]

Allowing scenarios to define their own custom terrain types and attributes makes a lot of sense, that would be fun.

I'm not sure what you have in mind for "program special behaviors based on the hard-coded terrain types". How about just adding some kind of sensing command that allows robots to sense the terrain in the current cell?