From 4797086a13f15c76753c9c63ba97bf5a07e4a6dc Mon Sep 17 00:00:00 2001 From: beezm Date: Sat, 8 Aug 2026 04:19:58 -0400 Subject: [PATCH] =?UTF-8?q?docs:=20curve=20v5=20=E2=80=94=20TCRV=20preset?= =?UTF-8?q?=20extension,=20tri-state=20gate=20(terrain-water=20task=2009)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Co-Authored-By: Claude Fable 5 --- Core/Scripts/BLUEPRINT_FORMAT.md | 13 +++++++------ Tools/Scripts/README.md | 3 ++- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/Core/Scripts/BLUEPRINT_FORMAT.md b/Core/Scripts/BLUEPRINT_FORMAT.md index f03b0bc..da4d9f9 100644 --- a/Core/Scripts/BLUEPRINT_FORMAT.md +++ b/Core/Scripts/BLUEPRINT_FORMAT.md @@ -55,7 +55,7 @@ Every section: `[u32 tag][u64 payload-length in bytes][payload]`. | `HGTS` / `0x53544748` | `MapSize²` × `f32` height, **X outer / Y inner** | Mandatory. The second index is the map's north/south axis; the server consumes it as world **Z**. (This axis convention was never written down for v1 — it is now normative.) Length must equal `4·MapSize²`. | | `BIOM` / `0x4D4F4942` | `MapSize²` × `u8` biome ordinal, same pixel order | Mandatory. Ordinals from `Enums.cs::Biome` — **append-only, never reorder** (the ordinal IS the wire value). Writer refuses ordinals > 255; reader rejects ordinals ≥ the known biome count (parse-time validation; the palette's runtime Dirt fallback for in-memory values is unchanged). Length must equal `MapSize²`. | | `TOWN` / `0x4E574F54` | `i32 count`, then per town: `f32 X` · `f32 Y` · `u8 tier` · `u8 isHighwayNode` (0/1) | Tier ordinals from `Enums.cs::TownTier`, append-only, range-checked on read. The highway-node flag is what the generator's road topology was built from (v1 dropped it); carried and exposed on the parsed blueprint, consumed by nothing server-side yet. | -| `TCRV` / `0x56524354` | 50 B base: `u16 curveVersion` · `f32 knot1..knot4` · `f32 spikeMax` · `f32 sea` · `f32 orangeCeil` · `f32 redCeil` · `f32 benchLo` · `f32 benchHi` · `f32 peakCap` · `f32 tailSlope`. **When `curveVersion ≥ 4`, a 36 B modulation extension follows:** `f32 benchAmp` · `f32 plateauAmp` · `f32 shelfSpanMin` · `f32 shelfSpanMax` · `f32 elevFreqIslands` · `f32 strengthFreqIslands` · `i32 benchSeedOffset` · `i32 plateauSeedOffset` · `i32 strengthSeedOffset` (record total 86 B; the length-framed section + version byte make the layout change safe for old readers of old files) | Optional — present iff the height-redistribution curve shaped this blueprint's `HGTS` (config `TerrainCurve: "v3"`); absent = raw legacy profile. **The `u16 curveVersion` selects the field semantics and the unserialized anchor set:** v1 — knots t1..t4, spikeMax = pooled calibration max, benchLo/Hi = the 50 m plateau's lo/hi. v2 — as v1 but spikeMax = the seed's effective raw pre-curve maximum (per-seed spike normalizer). v3 — knots = K1..K4 of six (K5 = 0.930304, K6 = 1.050720 are version constants, not serialized), spikeMax per-seed, benchLo/benchHi = the fixed 100 m / 220 m shelves. **v4 (current)** — as v3, but benchLo/benchHi are the shelf **BASE** anchors and the extension record carries the spatial-modulation parameters: shelf elevations vary ±benchAmp/±plateauAmp and shelf strength blends the output span across `[shelfSpanMin, shelfSpanMax]`, via Simplex fields seeded `resolvedWorldSeed + seedOffset` at `freq/MapSize` (frequencies stated in undulations per island width). Because spikeMax is per-seed (v2+), blueprints are not reproducible from curve constants alone — that is why it is recorded. **Metadata only:** exported heights are already curved; nothing re-applies the map. Calibration provenance: `HeightCurve.cs` header + the task-05/06/07 reports. | +| `TCRV` / `0x56524354` | 50 B base: `u16 curveVersion` · `f32 knot1..knot4` · `f32 spikeMax` · `f32 sea` · `f32 orangeCeil` · `f32 redCeil` · `f32 benchLo` · `f32 benchHi` · `f32 peakCap` · `f32 tailSlope`. **When `curveVersion ≥ 4`, a 36 B modulation extension follows:** `f32 benchAmp` · `f32 plateauAmp` · `f32 shelfSpanMin` · `f32 shelfSpanMax` · `f32 elevFreqIslands` · `f32 strengthFreqIslands` · `i32 benchSeedOffset` · `i32 plateauSeedOffset` · `i32 strengthSeedOffset`. **When `curveVersion ≥ 5`, a 9 B preset extension follows:** `u8 presetId` (1 = compact, 2 = balanced) · `f32 k5` · `f32 k6` — with the four base knot slots this makes the effective curve unambiguous from the record alone (record total 95 B; the length-framed section + version byte keep every layout change safe) | Optional — present iff the height-redistribution curve shaped this blueprint's `HGTS` (config `TerrainCurve: "v3"`); absent = raw legacy profile. **The `u16 curveVersion` selects the field semantics and the unserialized anchor set:** v1 — knots t1..t4, spikeMax = pooled calibration max, benchLo/Hi = the 50 m plateau's lo/hi. v2 — as v1 but spikeMax = the seed's effective raw pre-curve maximum (per-seed spike normalizer). v3 — knots = K1..K4 of six (K5 = 0.930304, K6 = 1.050720 are version constants, not serialized), spikeMax per-seed, benchLo/benchHi = the fixed 100 m / 220 m shelves. **v4 (current)** — as v3, but benchLo/benchHi are the shelf **BASE** anchors and the extension record carries the spatial-modulation parameters: shelf elevations vary ±benchAmp/±plateauAmp and shelf strength blends the output span across `[shelfSpanMin, shelfSpanMax]`, via Simplex fields seeded `resolvedWorldSeed + seedOffset` at `freq/MapSize` (frequencies stated in undulations per island width). Because spikeMax is per-seed (v2+), blueprints are not reproducible from curve constants alone — that is why it is recorded. **Metadata only:** exported heights are already curved; nothing re-applies the map. Calibration provenance: `HeightCurve.cs` header + the task-05/06/07 reports. | | `WBID` / `0x44494257` | `MapSize²` × `u16` water-body id, same pixel order as `HGTS` | Optional (absent = no water data, e.g. a legacy re-encode). `0` = no water, `1` = **the** ocean body, `2..N` = lakes. Ids assigned in deterministic scan order (X outer / Y inner, first-encountered pixel), lakes labeled with the **same 4-connectivity as `CalculateTrueOcean`**. Membership is exactly the generator's water classification — the biome grid's Ocean/Lake pixels and this grid's nonzero pixels are the same set **by construction** (shared predicates). Length must equal `2·MapSize²`. | | `WBTB` / `0x42544257` | `i32 count`, then per body (20 B): `u16 id` · `u8 type` (0 ocean, 1 lake) · `u8 salinity` (0 fresh, 1 salt) · `f32 surfaceLevel` · `i32 pixelCount` · `f32 centroidX` · `f32 centroidY` | Optional, paired with `WBID`. **`surfaceLevel` is a documented TRANSITIONAL rule:** one flat level per body — `GetSeaLevel` at the body's pixel centroid (ocean: at the map centre) under the still-live latitude field; superseded by the flat-scalar sea model (minted, lands with the coast change set). The field's per-pixel slope is deliberately NOT baked into any section. **Salinity is a provisional default** (ocean salt, lake fresh) — a placeholder for the future fresh/salt irrigation mechanic, not a mechanic. | | `WSRF` / `0x46525357` | `MapSize²` × `u16` quantized water-surface elevation, same pixel order | Optional, paired with `WBID`. `0` is the reserved **no-water sentinel**; a real level `L` (raw height units) encodes as `1 + round(L × 32768)` so it can never encode to 0; decode `(q − 1)/32768` (`BlueprintFormat.EncodeWaterLevel`/`DecodeWaterLevel`). Covers `[0 … ~1.99997]` raw at `1/32768` raw ≈ **7.7 mm** of world height (1 raw = 251 m) — far finer than the 1 m voxel. Nonzero exactly where `WBID` is nonzero; the value is the pixel's body level. | @@ -106,11 +106,12 @@ body). which model produced it (the `WBTB` levels are the observable). - **`SkipRoads`** (bool, default false) — exports with present-but-empty road sections (see the road-section table note). -- **`TerrainCurve`** (`"v4"` | `"off"`, default `"v4"`; `"v1"`–`"v3"` retired by successor - recalibrations and rejected loudly) — whether the height-redistribution curve (the terraced - ascent with spatially modulated shelves: 59 % orange lowlands, foothill bench 100±12 m, white - plateau 220±20 m, per-flank shelf strength, per-seed-normalized 420 m summit spires) shapes - `HGTS`. Biome/water classification is curve-invariant by +- **`TerrainCurve`** (`"v5-compact"` | `"v5-balanced"` | `"off"`; interim default + `"v5-balanced"` — the task-09 taste batch's tri-state, resolved when the developer's verdict + picks the winner as plain `"v5"`; `"v1"`–`"v4"` retired and rejected loudly) — whether the + height-redistribution curve (terraced ascent, corner-eased junctions, spatially modulated + shelves at 100±12 m / 220±20 m, per-seed-normalized 420 m summit spires; COMPACT = 65 % + lowland cordillera-from-plains, BALANCED = 60 % lowland gradual approach) shapes `HGTS`. Biome/water classification is curve-invariant by construction (it classifies the retained uncurved heights); town positions and everything 3D follow the curved terrain. When on, `TCRV` records the effective parameters including the per-seed `spikeMax`. diff --git a/Tools/Scripts/README.md b/Tools/Scripts/README.md index 35c00c9..22799ee 100644 --- a/Tools/Scripts/README.md +++ b/Tools/Scripts/README.md @@ -11,7 +11,8 @@ Generates the entire 2D blueprint. Roughly in order: 2. **Topography** — FastNoiseLite base height plus a mountain spine, minus a squircle distance falloff, giving a guaranteed island. Noise frequency is divided by `scaleFactor` (`MapSize / 1024f`) so terrain features stay the same real-world size at any map profile. - When `TerrainCurve: "v4"` (the default), the calibrated height-redistribution curve + When `TerrainCurve` is a `"v5-*"` preset (interim default `"v5-balanced"`; the task-09 taste + batch resolves the tri-state), the calibrated height-redistribution curve (`HeightCurve.cs` — the terraced ascent with spatially modulated shelves: flat farmable lowlands, a walkable foothill bench at 100±12 m, the white mountain-town plateau at 220±20 m — shelf heights and strength drift across the island so no two flanks wear the same