Cut, the tree regrowth on re-entry and the card-key door stamps all write
the block layer directly without emitting world.block_replaced, so
meshes derived from that layer went stale unannounced. An earlier cut of
this work made the engine announce each one -- the wrong place: it edits
the game for one mod's benefit, and every future path that writes a
block has to remember to do the same.
They all funnel through one choke point, so wrap Map:setBlock from the
mod instead. Map is a plain metatable shared by every instance, so this
covers paths written after this mod too. The write is read back rather
than trusted: setBlock ignores an out-of-bounds write, and a stamp that
rewrites a block with the value it already held is not an edit and must
not throw the mesh away.
src/world/OverworldController.lua is reverted to stock.
Flowers stand as 1px animated cutouts on their own pulled mesh (own-cell
flowers hide behind the walker, the cell south still overdraws feet).
Cuttable bushes, gym statues (single-block plinth) and Lt. Surge's trash
cans stand as 5-voxel prop cutouts; prop_ground names the tile painted
beneath. Block edits refresh meshes in place instead of blinking to 2D.