Kelsidavis-WoWee/tools/editor/FORMAT_SPEC.md

Wowee Open Format Specification v1.2

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) + chunkCount(4=256) + vertsPerChunk(4=145) + per-chunk data × 256
• Per-chunk: baseHeight(4 float) + heights[145](580 = 145 floats) + alphaSize(4) + alphaData(alphaSize bytes)
• 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) static, WOM2 (0x324D4F57) animated, WOM3 (0x334D4F57) multi-batch
• Layout: magic(4) + vertCount(4) + indexCount(4) + texCount(4) + boundRadius(4) + boundMin(12) + boundMax(12) + nameLen(2) + name + vertices + indices(uint32 each) + [pathLen(2) + path] × texCount
• WOM1 Vertex: position(vec3=12) + normal(vec3=12) + texCoord(vec2=8) = 32 bytes
• WOM2/WOM3 Vertex: + boneWeights(4) + boneIndices(4) = 40 bytes
• WOM2/WOM3 trailing block: boneCount(4) + [keyBoneId(4) + parentBone(2) + pivot(12) + flags(4)] × bones
  • animCount(4) + [id(4) + duration(4) + speed(4) + per-bone-keyframe-block] × anims
• Keyframe: timeMs(4) + translation(12) + rotation(16) + scale(12) = 44 bytes
• WOM3 Batches (after WOM2 trailing block): batchCount(4) + [indexStart(4) + indexCount(4) + textureIndex(4) + blendMode(2) + flags(2)] × N
• WOM3 blendMode: 0=opaque, 1=alpha-test, 2=alpha, 3=add, 4=mod, 5=mod2x, 6=blendAdd, 7=screen
• WOM3 flags: bit 0 = unlit, bit 1 = two-sided, bit 2 = no z-write
• Backward compatible: WOM1 files load without bone/animation data; WOM3 falls back to single-batch when batches block missing

WOB — Wowee Open Building (binary)

• Extension: .wob
• Magic: WOB1 (0x31424F57)
• Layout: magic(4) + groupCount(4) + portalCount(4) + doodadCount(4) + boundRadius(4) + nameLen(2) + name + groups + portals + doodads
• Group: nameLen(2) + name + vertexCount(4) + indexCount(4) + texCount(4) + outdoor(1) + boundMin(12) + boundMax(12)
  • vertices(pos+normal+uv+color = 48 bytes) + indices(uint32) + texPaths(prefixed) + materialCount(4) + materials
• Material: pathLen(2) + texturePath + flags(4) + shader(4) + blendMode(4)
• Doodad: pathLen(2) + modelPath + position(12) + rotation(12 euler degrees) + scale(4)
• Portal: groupA(4) + groupB(4) + vertexCount(4) + vertices(12 bytes each)
• toWMOModel restoration:
  • Materials are deduplicated across all groups by (texture, blend, flags)
  • Texture paths .png → .blp (renderer's PNG override is keyed on .blp)
  • Outdoor flag → WMO group flag bit 0x08
  • Portal vertices reconstruct MOPR refs for groupA / groupB
  • Doodad euler degrees → glm::quat using glm::eulerAngles convention
  • Default Set_$DefaultGlobal doodadSet emitted when doodads present

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

WOC — Wowee Open Collision (binary)

• Extension: .woc
• Magic: WOC1 (0x31434F57)
• Layout: magic(4) + triCount(4) + tileX(4) + tileY(4) + boundsMin(12) + boundsMax(12) + triangles
• Triangle: v0(12) + v1(12) + v2(12) + flags(1) = 37 bytes
• Flags: 0x01=walkable, 0x02=water, 0x04=steep, 0x08=indoor
• Generated from terrain heightmap with slope classification (50 deg threshold)
• Respects terrain holes (skips triangles in hole regions)
• WoweeCollisionBuilder::addMesh appends placed WMO group geometry (transformed into world space, slope-classified) so collision covers buildings as well as terrain.

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 (0-7)

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
7. WOC collision mesh with valid magic

SQL Server Export

• AzerothCore-flavored INSERT statements for: creature_template, creature, creature_addon, waypoint_data, quest_template, creature_queststarter, creature_questender.
• Coordinates: editor render coords are converted to WoW canonical via core::coords::renderToCanonical (X/Y swap) before write.
• Orientation: editor degrees from +renderX (west) → WoW radians from +X (north). Conversion: wowYaw = π/2 - editorYaw then normalised to [0, 2π).
• Quest objectives: KillCreature targets fill RequiredNpcOrGo[1..4]; CollectItem targets fill RequiredItemId[1..6]. Target ID parsed from objective.targetName.
• Quest givers/turn-in NPCs: written as creature_queststarter / creature_questender rows linking npc.id ↔ quest.id.

Format Quick Reference

Format	Replaces	Magic	Extension	Purpose
WOT	(part of ADT)	wot-1.0 JSON	.wot	Terrain metadata + placements
WHM	ADT MCNK heights/alpha	WHM1 (0x314D4857)	.whm	Heightmap + alpha layers
WOM1/2/3	M2/skin	WOM1/2/3 (0x31/32/33 4D4F57)	.wom	Static / animated / multi-batch model
WOB	WMO + group files	WOB1 (0x31424F57)	.wob	Building (groups + portals + doodads)
WOC	(none, novel)	WOC1 (0x31434F57)	.woc	Walkability collision mesh
WCP	MPQ archive	WCP1 (0x31504357)	.wcp	Whole-zone bundle
zone.json	WDT	"format":"wowee-zone-1.0"	zone.json	Map definition + audio/flags
JSON DBC	DBC	"format":"wowee-dbc-json-1.0"	*.json	Data tables
PNG	BLP	PNG signature	.png	Textures (loaded via override sys)

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

No Blizzard intellectual property is used in any format definition.