TheriapolisV3

3 Commits 1 Branch 0 Tags

Author	SHA1	Message	Date
Christopher Wiebe	b3da447673	Fix MoistureGen/TemperatureGen non-determinism (FastNoiseLite race) FastNoiseLite lazily populates its internal _perm[512] table on the first GetNoise call via EnsurePerm(). When called concurrently from a Parallel.For loop, threads race on this initialization and may read a partially-populated table, producing different moisture/temperature values per row across runs. Empirical: a 10-run worldgen-hash sweep on seed 12345 produced 4+ distinct moisture hashes and 3+ distinct temperature hashes. All other channels (elevation, biomes, settlements, polylines) remained stable; biomes only because their bucket thresholds happened to absorb the upstream float noise. The fix is the same one ElevationGenStage:125-130 and BorderDistortionGenStage: 102-104 already apply: call GetNoise once on the main thread before the Parallel.For so _perm is fully initialized when worker threads start reading. MoistureGenStage and TemperatureGenStage were missing this; now they have it. WorldgenDeterminismTests didn't catch this because xUnit's WorldCache fixture runs both pipeline variants in the same process, where consecutive runs hit the same JIT/thread-pool state and produce the same corrupted output. The Godot port surfaced it by invoking Core from a fresh process with different threading. Verified: post-fix 10-run sweep produces stable hashes on all six channels (0xA8F99BB9795D8CF8 moisture, 0xAA05F3FB1523F6C3 temperature, seed 12345). 708/708 tests still pass. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-04-30 21:37:55 -07:00
Christopher Wiebe	59e86af7a2	M0: Scaffold Theriapolis.Godot project (hello-world) First milestone of the Godot port. Establishes the new project structure and verifies the toolchain is wired up end-to-end. - Godot.NET.Sdk/4.6.2 targeting net8.0; references Theriapolis.Core - project.godot configured for borderless fullscreen at native resolution (per port plan §10 resolved decisions); F11 toggles to windowed - Main.tscn + Main.cs hello-world; nearest-neighbor texture filtering - icon.svg placeholder (T in gild on dark) - Added to Theriapolis.sln Verification: - dotnet build Theriapolis.Godot.csproj: 0 errors, 0 warnings - dotnet build Theriapolis.sln: 0 errors (6 pre-existing warnings unrelated) - dotnet test: 708/708 pass in 26s (unchanged from master) - Godot 4.6.2 opens project; fullscreen + F11 toggle confirmed visually Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-04-30 20:52:35 -07:00
Christopher Wiebe	b451f83174	Initial commit: Theriapolis baseline at port/godot branch point Captures the pre-Godot-port state of the codebase. This is the rollback anchor for the Godot port (M0 of theriapolis-rpg-implementation-plan-godot-port.md). All Phase 0 through Phase 6.5 work is included; Phase 7 is in flight. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-04-30 20:40:51 -07:00

Author

SHA1

Message

Date

Christopher Wiebe

b3da447673

Fix MoistureGen/TemperatureGen non-determinism (FastNoiseLite race)

FastNoiseLite lazily populates its internal _perm[512] table on the first
GetNoise call via EnsurePerm(). When called concurrently from a Parallel.For
loop, threads race on this initialization and may read a partially-populated
table, producing different moisture/temperature values per row across runs.

Empirical: a 10-run worldgen-hash sweep on seed 12345 produced 4+ distinct
moisture hashes and 3+ distinct temperature hashes. All other channels
(elevation, biomes, settlements, polylines) remained stable; biomes only
because their bucket thresholds happened to absorb the upstream float noise.

The fix is the same one ElevationGenStage:125-130 and BorderDistortionGenStage:
102-104 already apply: call GetNoise once on the main thread before the
Parallel.For so _perm is fully initialized when worker threads start reading.
MoistureGenStage and TemperatureGenStage were missing this; now they have it.

WorldgenDeterminismTests didn't catch this because xUnit's WorldCache fixture
runs both pipeline variants in the same process, where consecutive runs hit
the same JIT/thread-pool state and produce the same corrupted output. The
Godot port surfaced it by invoking Core from a fresh process with different
threading.

Verified: post-fix 10-run sweep produces stable hashes on all six channels
(0xA8F99BB9795D8CF8 moisture, 0xAA05F3FB1523F6C3 temperature, seed 12345).
708/708 tests still pass.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-04-30 21:37:55 -07:00

Christopher Wiebe

59e86af7a2

M0: Scaffold Theriapolis.Godot project (hello-world)

First milestone of the Godot port. Establishes the new project structure
and verifies the toolchain is wired up end-to-end.

- Godot.NET.Sdk/4.6.2 targeting net8.0; references Theriapolis.Core
- project.godot configured for borderless fullscreen at native resolution
  (per port plan §10 resolved decisions); F11 toggles to windowed
- Main.tscn + Main.cs hello-world; nearest-neighbor texture filtering
- icon.svg placeholder (T in gild on dark)
- Added to Theriapolis.sln

Verification:
- dotnet build Theriapolis.Godot.csproj: 0 errors, 0 warnings
- dotnet build Theriapolis.sln: 0 errors (6 pre-existing warnings unrelated)
- dotnet test: 708/708 pass in 26s (unchanged from master)
- Godot 4.6.2 opens project; fullscreen + F11 toggle confirmed visually

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-04-30 20:52:35 -07:00

Christopher Wiebe

b451f83174

Initial commit: Theriapolis baseline at port/godot branch point

Captures the pre-Godot-port state of the codebase. This is the rollback
anchor for the Godot port (M0 of theriapolis-rpg-implementation-plan-godot-port.md).
All Phase 0 through Phase 6.5 work is included; Phase 7 is in flight.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-04-30 20:40:51 -07:00