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feat: curve v3 — terraced ascent, two benches, white plateau at 220 m (terrain-water task 07)

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Per the task-06 ground-test verdict (floor and 420 m ceiling frozen;
v2's ascent read flat-then-wall — 87% of the vertical budget in the
last 4% of input): the ascent is rebuilt as a terraced climb. Knots
recalibrated from the same pooled batch-04 land CDF at
P59/72/82/87/95/98 (K=0.509179/0.604081/0.698485/0.767213/0.930304/
1.050720), pooled land fractions exactly 59/13/10/5/8/3/2 (orange/red/
foothill-riser/bench/mid-riser/plateau/spike). Segments: frozen toe
and rise (storm anchors), smoothstep foothill riser to a near-flat
100 m bench, smoothstep mid riser to the near-flat white plateau at
220 m (relocated from 50 m — mountain towns/snow belong there),
per-seed-normalized u4 summit spike to 420 m (both retained from v2),
linear tail. Per-seed effective-curve monotonicity assertion retained.

TerrainCurve gate: "off"|"v3" (default v3); v1/v2 retired with a
loud config error (old blueprints regenerable). TCRV: knot slots carry
K1..K4 (K5/K6 are version constants), PlateauLo/Hi carry the two bench
anchors; version byte selects the semantics.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Stewart Howe 2026-08-08 02:25:49 -04:00
parent 5720f05a5b
commit ae7431ac87
3 changed files with 102 additions and 83 deletions
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18
Core/Scripts/ConfigManager.cs
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@ -26,12 +26,12 @@ namespace IslaApocalypse.Core // Change this if your namespace is different
public static string SeaLevelModel = "flat";
public static float SeaLevelValue = 0.15f;
// Height-redistribution curve (tasks 05/06, graduation M-7): "v2" applies the
// calibrated storm-ladder curve with the per-seed peak spike (HeightCurve.cs);
// "off" is the raw legacy profile. "v1" was dropped with the v2 recalibration
// (task-05 blueprints are regenerable). Biome classification is curve-invariant
// by construction either way. Default: v2.
public static string TerrainCurve = "v2";
// Height-redistribution curve (tasks 05/06/07, graduation M-7): "v3" applies
// the terraced-ascent curve with the per-seed peak spike (HeightCurve.cs);
// "off" is the raw legacy profile. "v1"/"v2" were retired by their successor
// recalibrations (old blueprints are regenerable). Biome classification is
// curve-invariant by construction either way. Default: v3.
public static string TerrainCurve = "v3";
public static void LoadConfig()
{
@ -106,10 +106,10 @@ namespace IslaApocalypse.Core // Change this if your namespace is different
if (data.ContainsKey("TerrainCurve"))
{
string curve = (string)data["TerrainCurve"];
if (curve == "off" || curve == "v2")
if (curve == "off" || curve == "v3")
TerrainCurve = curve;
else if (curve == "v1")
GD.PrintErr($"[ConfigManager] TerrainCurve 'v1' was retired by the v2 recalibration (task 06). Keeping '{TerrainCurve}' — use \"v2\" or \"off\".");
else if (curve == "v1" || curve == "v2")
GD.PrintErr($"[ConfigManager] TerrainCurve '{curve}' was retired by a later recalibration (v3, task 07). Keeping '{TerrainCurve}' — use \"v3\" or \"off\".");
else
GD.PrintErr($"[ConfigManager] Unknown TerrainCurve '{curve}'. Keeping '{TerrainCurve}'.");
}