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>
This commit is contained in:
Christopher Wiebe
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using Theriapolis.Core;
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using Theriapolis.Core.Data;
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using Theriapolis.Core.Rules.Reputation;
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using Theriapolis.Core.World;
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using Xunit;
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namespace Theriapolis.Tests.Reputation;
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/// <summary>
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/// Phase 6 M5 — propagation correctness: distance-band decay, opposition
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/// cascade, frontier coin-flip determinism, NEMESIS/CHAMPION bypass.
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/// </summary>
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public sealed class RepPropagationTests
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{
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private static IReadOnlyDictionary<string, FactionDef> Factions()
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=> new ContentResolver(new ContentLoader(TestHelpers.DataDirectory)).Factions;
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private static Settlement Sett(int id, int x, int y) => new()
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{
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Id = id,
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Name = $"S{id}",
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Tier = 3,
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TileX = x,
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TileY = y,
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};
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[Fact]
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public void BandFor_MapsTilesToBands()
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{
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Assert.Equal(RepPropagation.DistanceBand.Origin, RepPropagation.BandFor(0));
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Assert.Equal(RepPropagation.DistanceBand.Adjacent, RepPropagation.BandFor(1));
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Assert.Equal(RepPropagation.DistanceBand.Adjacent, RepPropagation.BandFor(C.REP_ADJACENT_DIST_TILES));
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Assert.Equal(RepPropagation.DistanceBand.Regional, RepPropagation.BandFor(C.REP_ADJACENT_DIST_TILES + 1));
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Assert.Equal(RepPropagation.DistanceBand.Regional, RepPropagation.BandFor(C.REP_REGIONAL_DIST_TILES));
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Assert.Equal(RepPropagation.DistanceBand.Continental, RepPropagation.BandFor(C.REP_REGIONAL_DIST_TILES + 1));
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Assert.Equal(RepPropagation.DistanceBand.Continental, RepPropagation.BandFor(C.REP_CONTINENTAL_DIST_TILES));
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Assert.Equal(RepPropagation.DistanceBand.Frontier, RepPropagation.BandFor(C.REP_CONTINENTAL_DIST_TILES + 1));
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}
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[Fact]
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public void DecayPctFor_HasMonotonicallyDecreasingValues()
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{
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Assert.True(RepPropagation.DecayPctFor(RepPropagation.DistanceBand.Origin) >
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RepPropagation.DecayPctFor(RepPropagation.DistanceBand.Adjacent));
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Assert.True(RepPropagation.DecayPctFor(RepPropagation.DistanceBand.Adjacent) >
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RepPropagation.DecayPctFor(RepPropagation.DistanceBand.Regional));
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Assert.True(RepPropagation.DecayPctFor(RepPropagation.DistanceBand.Regional) >
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RepPropagation.DecayPctFor(RepPropagation.DistanceBand.Continental));
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Assert.True(RepPropagation.DecayPctFor(RepPropagation.DistanceBand.Continental) >
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RepPropagation.DecayPctFor(RepPropagation.DistanceBand.Frontier));
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}
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[Fact]
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public void LocalStanding_AtOrigin_FullMagnitude()
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{
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var ledger = new RepLedger();
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ledger.Append(new RepEvent
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{
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FactionId = "inheritors",
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Magnitude = 20,
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OriginTileX = 100, OriginTileY = 100,
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});
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var s = Sett(1, 100, 100);
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Assert.Equal(20, RepPropagation.LocalStandingFor("inheritors", s, 0xCAFEUL, ledger, Factions()));
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}
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[Fact]
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public void LocalStanding_DecaysWithDistance()
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{
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var f = Factions();
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var ledger = new RepLedger();
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ledger.Append(new RepEvent
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{
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FactionId = "inheritors",
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Magnitude = 50, // (just under the bypass threshold)
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OriginTileX = 100, OriginTileY = 100,
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});
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// Adjacent: 80% of 50 = 40
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// Wait — 50 is exactly at threshold; let's use 49 to test decay.
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ledger = new RepLedger();
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ledger.Append(new RepEvent
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{
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FactionId = "inheritors",
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Magnitude = 49,
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OriginTileX = 100, OriginTileY = 100,
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});
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int origin = RepPropagation.LocalStandingFor("inheritors", Sett(1, 100, 100), 0xCAFEUL, ledger, f);
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int adjacent = RepPropagation.LocalStandingFor("inheritors", Sett(2, 110, 100), 0xCAFEUL, ledger, f); // 10 tiles
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int regional = RepPropagation.LocalStandingFor("inheritors", Sett(3, 150, 100), 0xCAFEUL, ledger, f); // 50 tiles
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int continental= RepPropagation.LocalStandingFor("inheritors", Sett(4, 250, 100), 0xCAFEUL, ledger, f); // 150 tiles
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Assert.Equal(49, origin);
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Assert.Equal((int)System.Math.Round(49 * 0.80f), adjacent);
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Assert.Equal((int)System.Math.Round(49 * 0.60f), regional);
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Assert.Equal((int)System.Math.Round(49 * 0.40f), continental);
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}
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[Fact]
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public void Cascade_AppliesOppositionMatrix()
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{
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// Player gains +20 with Inheritors at (100, 100). The Enforcers
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// hate this (mult -0.5) → -10 should cascade to Enforcer standing
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// even at origin.
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var f = Factions();
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var ledger = new RepLedger();
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ledger.Append(new RepEvent
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{
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FactionId = "inheritors",
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Magnitude = 20,
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OriginTileX = 100, OriginTileY = 100,
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});
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int enforcerLocal = RepPropagation.LocalStandingFor("covenant_enforcers",
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Sett(1, 100, 100), 0xCAFEUL, ledger, f);
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Assert.Equal(-10, enforcerLocal);
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}
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[Fact]
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public void ExtremeMagnitude_BypassesDecay()
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{
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var f = Factions();
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var ledger = new RepLedger();
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ledger.Append(new RepEvent
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{
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FactionId = "inheritors",
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Magnitude = 60, // ≥ REP_EXTREME_BYPASS_MAGNITUDE
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OriginTileX = 0, OriginTileY = 0,
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});
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// Settlement on the frontier (>200 tiles away).
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int far = RepPropagation.LocalStandingFor("inheritors",
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Sett(99, 250, 250), 0xCAFEUL, ledger, f);
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Assert.Equal(60, far);
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}
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[Fact]
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public void FrontierDelivered_IsDeterministic()
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{
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// Same seed, same event id, same settlement id → same answer.
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bool a = RepPropagation.FrontierDelivered(0xCAFEUL, 1, 5);
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bool b = RepPropagation.FrontierDelivered(0xCAFEUL, 1, 5);
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Assert.Equal(a, b);
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// Vary one input → may differ; just confirm we don't always hit one branch.
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int trues = 0, falses = 0;
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for (int i = 1; i <= 100; i++)
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{
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if (RepPropagation.FrontierDelivered(0xCAFEUL, i, 5)) trues++;
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else falses++;
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}
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Assert.True(trues > 20 && falses > 20,
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$"Expected roughly 50/50 distribution; got trues={trues}, falses={falses}");
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}
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[Fact]
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public void FrontierEvent_OnlyAppliesWhenDelivered()
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{
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var f = Factions();
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var ledger = new RepLedger();
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ledger.Append(new RepEvent
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{
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SequenceId = 0, // assigned by Append → 1
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FactionId = "inheritors",
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Magnitude = 20,
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OriginTileX = 0, OriginTileY = 0,
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});
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// Frontier settlement.
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var s = Sett(1, 250, 250);
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int got = RepPropagation.LocalStandingFor("inheritors", s, 0xCAFEUL, ledger, f);
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// Either 0 (not delivered) or +4 (20 × 20%).
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Assert.True(got == 0 || got == (int)System.Math.Round(20 * 0.20f),
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$"frontier delivery should be 0 or {System.Math.Round(20 * 0.20f)}, got {got}");
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}
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[Fact]
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public void ExplainLocalStanding_ReturnsRecentEvents()
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{
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var f = Factions();
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var ledger = new RepLedger();
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ledger.Append(new RepEvent
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{
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FactionId = "inheritors", Magnitude = 10, Note = "first",
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OriginTileX = 100, OriginTileY = 100,
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});
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ledger.Append(new RepEvent
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{
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FactionId = "inheritors", Magnitude = -5, Note = "second",
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OriginTileX = 100, OriginTileY = 100,
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});
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var s = Sett(1, 100, 100);
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var explained = RepPropagation.ExplainLocalStanding("inheritors", s, 0xCAFEUL, ledger, f, max: 8).ToList();
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Assert.Equal(2, explained.Count);
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// Most-recent-first.
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Assert.Equal("second", explained[0].Event.Note);
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Assert.Equal("first", explained[1].Event.Note);
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}
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}
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