Part V — Glossary

Term
Meaning (plain)
Voxel
A single cell in the 3D grid — empty, or holding one block.
Block
A voxel that exists: a material + shape + rotation (+ height, planned).
Chunk
A 16×16×16 group of voxels; maps are made of chunks.
Column
The stack of voxels at one grid position; terrain is columns.
Surface
A place a unit can stand, with an exact height.
Material
What a block is made of (grass, lava, water, wall…), named in the catalog.
Shape
The geometry a block occupies in its cell (full, half, slab, slope, wedge…).
Height
The fractional amount of a cell a block fills (planned per-voxel).
Registry / catalog
The append-only list of materials, referenced by index.
Codec
The code that packs/unpacks map files (
.vmap).
Schema
The version number of the file format.
Facts
What the map stores: material, shape, rotation, height.
Rules layer
The modules that judge facts: passability, cost, hazards, mobility.
Move budget
The move points a unit has; each tile costs some.
Movement bubble
Every tile reachable within the move budget (FFT's movement range).
Hazard
A material that damages or affects a unit standing on it (lava, poison…).
Trait
A unit property that changes movement rules (float, fly, swim).
Status
A temporary effect on a unit (slow, stop, immobilize, wet…).
RAW view
The literal-data view of the map; the truth view.
RENDER view
The game-look view (smooth, lit, cosmetic).
Path
The ordered list of tiles a unit walks to reach a destination.
Affinity
A unit's damage multiplier for an element (0 immune, 2 weak, negative absorbs).
Charge Time (CT)
The clock that schedules turns: a unit acts when its CT reaches 100.
Commit
One ordered state change in the match log — a move, an action, a map edit.
Commit log
The append-only, sequence-numbered stream every client replays.
Element
One of the eight damage types (fire, ice, lightning, water, wind, earth, holy, dark).
Line of sight
Whether a straight line between two units is unblocked by solid terrain.
Ruleset version
The hash of rule data a match pins; clients that differ refuse to join.
Simulation seed
The seed driving the match's deterministic RNG.
Tick
One step of the global clock; CT and scheduled events advance per tick.
Deterministic RNG
The seeded PRNG used for all gameplay randomness.
Snapshot
A full capture of a match (ruleset, seeds, map, units, RNG, turn state) for reconnect.
Mirrored to the wiki by 
tools/sync_wiki.py. Canonical source: this file.