modular_nova/modules/condos/condo_preview.dm

CONDO_PREVIEW_MAX_PX	Longest side (px) a preview picture may have; bigger rooms get scaled down to fit the UI.
CONDO_PREVIEW_CACHE_DIR	Where rendered previews are cached between rounds. The map's hash is baked into the filename, so a changed .dmm just misses the cache and re-renders.
/datum/asset/simple/condo_previews	Holds the preview picture of each interior. Filled in at round start by prerender_previews().
/proc/condo_preview_asset_name	Asset name for an interior from its map path (".../alleyway.dmm" -> "condo_alleyway.png").
/proc/condo_skip_turf	TRUE for turfs we don't want in the picture: the empty space around the room and the yellow cordon tiles the maps use as a boundary.
/proc/condo_flat_render	Flattens a loaded room to a clean top-down icon: floors then objects, no lighting or parallax planes (those are what turn the picture into garbage).

Define Details

Where rendered previews are cached between rounds. The map's hash is baked into the filename, so a changed .dmm just misses the cache and re-renders.

Longest side (px) a preview picture may have; bigger rooms get scaled down to fit the UI.