{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "WallType.schema.json",
  "title": "WallType",
  "x-merge": "Map",
  "description": "What a `Wall` segment blocks.\n\nVision and movement are blocked independently, which is what lets a window stop a creature but\nnot its line of sight, and a curtain do the reverse.",
  "type": "string",
  "enum": [
    "normal",
    "invisible",
    "ethereal",
    "terrain",
    "door",
    "secretDoor"
  ]
}