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Kelsidavis-WoWee/tools/editor/FORMAT_SPEC.md
Kelsi 47eff19cb6 feat: WOB material serialization, FORMAT_SPEC v1.1, material tests 
- WOB save/load now serializes Material struct fields (flags, shader,
  blendMode, texturePath) per group — was saving only texture paths
- FORMAT_SPEC.md v1.1: documents WOT doodad/WMO placements, WOB
  material fields, doodad rotation, terrain stamps, WCP file list
- Test coverage: 5 new assertions verify material round-trip (flags,
  shader, blendMode all preserved through save→load cycle)
- 260 total assertions across 75 test cases, all passing
2026-05-05 14:53:28 -07:00

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Wowee Open Format Specification v1.1

Novel file formats for custom WoW zone content. No Blizzard IP.

WOT — Wowee Open Terrain (JSON metadata)

  • Extension: .wot
  • Contains: tile coords, texture list, per-chunk layers/holes, water data, doodad placements (M2 objects), WMO placements (buildings)
  • Key: "format": "wot-1.0"
  • Placement fields: doodadNames[], doodads[] (nameId, uniqueId, pos, rot, scale, flags)
  • WMO fields: wmoNames[], wmos[] (nameId, uniqueId, pos, rot, flags, doodadSet)

WHM — Wowee HeightMap (binary)

  • Extension: .whm
  • Magic: WHM1 (0x314D4857)
  • Layout: magic(4) + chunks(4) + vertsPerChunk(4) + per-chunk data × 256
  • Per-chunk: baseHeight(4) + heights145 + alphaSize(4) + alphaData(alphaSize)
  • Alpha data: raw alpha blend maps for texture layers (same format as ADT MCAL)
  • Backward compatible: older WHM files without alpha data still load (alphaSize=0)

WOM — Wowee Open Model (binary)

  • Extension: .wom
  • Magic: WOM1 (0x314D4F57)
  • Layout: magic(4) + vertCount(4) + indexCount(4) + texCount(4) + bounds(28) + name + vertices + indices + texPaths
  • Vertex: position(vec3) + normal(vec3) + texCoord(vec2) = 32 bytes
  • Note: geometry-only (no skeletal animation — WOM2 planned for bone data)

WOB — Wowee Open Building (binary)

  • Extension: .wob
  • Magic: WOB1 (0x31424F57)
  • Layout: magic(4) + groupCount(4) + portalCount(4) + doodadCount(4) + bounds(4) + name + groups + portals + doodads
  • Group: name + vertexCount(4) + indexCount(4) + texCount(4) + outdoor(1) + bounds(24)
    • vertices(pos+normal+uv+color) + indices + texPaths + materialCount(4) + materials
  • Material: texturePath + flags(4) + shader(4) + blendMode(4)
  • Doodad: modelPath + position(12) + rotation(12) + scale(4)
  • Portal: groupA(4) + groupB(4) + vertexCount(4) + vertices

WCP — Wowee Content Pack (archive)

  • Extension: .wcp
  • Magic: WCP1 (0x31504357)
  • Layout: magic(4) + fileCount(4) + infoJsonSize(4) + infoJSON + [pathLen(2) + path + dataSize(4) + data] × N
  • Info JSON includes categorized file list (terrain/model/building/texture/data)

zone.json — Map Definition

  • Replaces WDT
  • Fields: mapName, displayName, mapId, biome, baseHeight
  • hasCreatures, description, tiles array, files map
  • doodadNames[], doodads[], wmoNames[], wmos[] for placed objects
  • editorVersion for compatibility tracking

JSON DBC — Data Table Replacement

  • Replaces binary DBC files
  • Format: {"format": "wowee-dbc-json-1.0", "records": [...], "fieldCount": N}
  • Records are arrays of mixed types: integers, floats, strings
  • Client loads via DBCFile::loadJSON() when found in custom_zones/ or output/

PNG Textures — Texture Replacement

  • Replaces BLP texture files
  • Standard PNG format, loaded by client's texture override system
  • Editor auto-converts BLP→PNG on export via stb_image_write

Terrain Stamps (.json)

  • Portable terrain feature snapshots (mountains, craters, etc.)
  • Format: {"format": "wowee-stamp-1.0", "vertices": [[dx, dy, height], ...]}
  • Can be saved/loaded across zones and sessions

Open Format Scoring (0-6)

  1. WOT terrain metadata present
  2. WHM heightmap with valid magic
  3. zone.json map definition
  4. PNG textures present
  5. WOM models with valid magic
  6. WOB buildings with valid magic

All formats are novel, portable, and open for redistribution.

No Blizzard intellectual property is used in any format definition.