NEO-89: Add INpcBehaviorDefinitionRegistry and DI registration.

pull/126/head
VinPropane 2026-05-25 17:27:14 -04:00
parent 7e4e0ca843
commit 70dc293246
6 changed files with 394 additions and 2 deletions

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@ -0,0 +1,302 @@
using System.IO;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging.Abstractions;
using NeonSprawl.Server.Game.Npc;
using NeonSprawl.Server.Tests;
using Xunit;
namespace NeonSprawl.Server.Tests.Game.Npc;
public class NpcBehaviorDefinitionRegistryTests
{
private static NpcBehaviorDefinitionRegistry CreateRegistryFromRows(IReadOnlyDictionary<string, NpcBehaviorDefRow> byId)
{
var catalog = new NpcBehaviorDefinitionCatalog("/tmp/npc-behaviors", byId, catalogJsonFileCount: 1);
return new NpcBehaviorDefinitionRegistry(catalog);
}
private static NpcBehaviorDefRow MeleeRow() =>
new(
PrototypeNpcBehaviorRegistry.PrototypeMeleePressure,
"Melee Pressure",
"melee_pressure",
100,
8.0,
16.0,
1.5,
15,
3.0);
private static NpcBehaviorDefRow RangedRow() =>
new(
PrototypeNpcBehaviorRegistry.PrototypeRangedControl,
"Ranged Control",
"ranged_control",
80,
10.0,
20.0,
2.0,
12,
4.0);
private static NpcBehaviorDefRow EliteRow() =>
new(
PrototypeNpcBehaviorRegistry.PrototypeEliteMiniBoss,
"Elite Mini-Boss",
"elite_mini_boss",
200,
8.0,
18.0,
2.5,
25,
5.0);
[Fact]
public void TryGetDefinition_ShouldReturnTrueAndExpectedMetadata_WhenMeleeExists()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeMeleePressure] = MeleeRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var found = registry.TryGetDefinition(PrototypeNpcBehaviorRegistry.PrototypeMeleePressure, out var def);
// Assert
Assert.True(found);
Assert.NotNull(def);
Assert.Equal(100, def.MaxHp);
Assert.Equal(8.0, def.AggroRadius);
Assert.Equal(16.0, def.LeashRadius);
Assert.Equal(15, def.AttackDamage);
Assert.Equal(1.5, def.TelegraphWindupSeconds);
Assert.Equal("melee_pressure", def.ArchetypeKind);
Assert.Equal("Melee Pressure", def.DisplayName);
}
[Fact]
public void TryGetDefinition_ShouldReturnTrueAndExpectedMetadata_WhenEliteExists()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeEliteMiniBoss] = EliteRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var found = registry.TryGetDefinition(PrototypeNpcBehaviorRegistry.PrototypeEliteMiniBoss, out var def);
// Assert
Assert.True(found);
Assert.NotNull(def);
Assert.Equal(200, def.MaxHp);
Assert.Equal(25, def.AttackDamage);
Assert.Equal(2.5, def.TelegraphWindupSeconds);
}
[Fact]
public void TryGetDefinition_ShouldReturnFalse_WhenBehaviorIdIsNull()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeMeleePressure] = MeleeRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var found = registry.TryGetDefinition(null, out var def);
// Assert
Assert.False(found);
Assert.Null(def);
}
[Fact]
public void TryGetDefinition_ShouldReturnFalse_WhenIdUnknown()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeMeleePressure] = MeleeRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var found = registry.TryGetDefinition("not_a_real_behavior", out var def);
// Assert
Assert.False(found);
Assert.Null(def);
}
[Fact]
public void TryNormalizeKnown_ShouldReturnTrueAndLowercaseId_WhenInputHasWhitespaceAndMixedCase()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeMeleePressure] = MeleeRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var found = registry.TryNormalizeKnown(" Prototype_Melee_Pressure ", out var normalized);
// Assert
Assert.True(found);
Assert.Equal(PrototypeNpcBehaviorRegistry.PrototypeMeleePressure, normalized);
}
[Fact]
public void TryNormalizeKnown_ShouldReturnFalse_WhenInputIsNull()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeMeleePressure] = MeleeRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var found = registry.TryNormalizeKnown(null, out var normalized);
// Assert
Assert.False(found);
Assert.Equal(string.Empty, normalized);
}
[Fact]
public void TryNormalizeKnown_ShouldReturnFalse_WhenInputIsWhitespaceOnly()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeMeleePressure] = MeleeRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var found = registry.TryNormalizeKnown(" ", out var normalized);
// Assert
Assert.False(found);
Assert.Equal(string.Empty, normalized);
}
[Fact]
public void TryNormalizeKnown_ShouldReturnFalse_WhenIdNotInCatalog()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeMeleePressure] = MeleeRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var found = registry.TryNormalizeKnown("prototype_unknown", out var normalized);
// Assert
Assert.False(found);
Assert.Equal("prototype_unknown", normalized);
}
[Fact]
public void GetDefinitionsInIdOrder_ShouldListAllRowsOrderedById_WhenMultipleBehaviors()
{
// Arrange
var rows = new Dictionary<string, NpcBehaviorDefRow>(StringComparer.Ordinal)
{
[PrototypeNpcBehaviorRegistry.PrototypeRangedControl] = RangedRow(),
[PrototypeNpcBehaviorRegistry.PrototypeEliteMiniBoss] = EliteRow(),
[PrototypeNpcBehaviorRegistry.PrototypeMeleePressure] = MeleeRow(),
};
var registry = CreateRegistryFromRows(rows);
// Act
var list = registry.GetDefinitionsInIdOrder();
// Assert
Assert.Equal(3, list.Count);
Assert.Equal(PrototypeNpcBehaviorRegistry.PrototypeEliteMiniBoss, list[0].Id);
Assert.Equal(PrototypeNpcBehaviorRegistry.PrototypeMeleePressure, list[1].Id);
Assert.Equal(PrototypeNpcBehaviorRegistry.PrototypeRangedControl, list[2].Id);
}
[Fact]
public void TryGetDefinition_ShouldMatchLoaderCatalog_WhenUsingPrototypeFixture()
{
// Arrange
var root = Directory.CreateTempSubdirectory("neon-sprawl-npc-registry-loader-");
try
{
var npcBehaviorsDir = Path.Combine(root.FullName, "content", "npc-behaviors");
var schemaDir = Path.Combine(root.FullName, "content", "schemas");
Directory.CreateDirectory(npcBehaviorsDir);
Directory.CreateDirectory(schemaDir);
var schemaPath = Path.Combine(schemaDir, "npc-behavior-def.schema.json");
File.Copy(NpcBehaviorCatalogTestPaths.DiscoverRepoNpcBehaviorDefSchemaPath(), schemaPath, overwrite: true);
File.Copy(
Path.Combine(NpcBehaviorCatalogTestPaths.DiscoverRepoNpcBehaviorsDirectory(), "prototype_npc_behaviors.json"),
Path.Combine(npcBehaviorsDir, "prototype_npc_behaviors.json"),
overwrite: true);
var loaded = NpcBehaviorDefinitionCatalogLoader.Load(npcBehaviorsDir, schemaPath, NullLogger.Instance);
var registry = new NpcBehaviorDefinitionRegistry(loaded);
// Act
var meleeOk = registry.TryGetDefinition(PrototypeNpcBehaviorRegistry.PrototypeMeleePressure, out var melee);
var rangedOk = registry.TryGetDefinition(PrototypeNpcBehaviorRegistry.PrototypeRangedControl, out var ranged);
var eliteOk = registry.TryGetDefinition(PrototypeNpcBehaviorRegistry.PrototypeEliteMiniBoss, out var elite);
var list = registry.GetDefinitionsInIdOrder();
// Assert
Assert.True(meleeOk);
Assert.NotNull(melee);
Assert.Equal(100, melee!.MaxHp);
Assert.Equal(8.0, melee.AggroRadius);
Assert.Equal(16.0, melee.LeashRadius);
Assert.Equal(15, melee.AttackDamage);
Assert.Equal(1.5, melee.TelegraphWindupSeconds);
Assert.True(rangedOk);
Assert.NotNull(ranged);
Assert.Equal(80, ranged!.MaxHp);
Assert.Equal(10.0, ranged.AggroRadius);
Assert.Equal(20.0, ranged.LeashRadius);
Assert.Equal(12, ranged.AttackDamage);
Assert.Equal(2.0, ranged.TelegraphWindupSeconds);
Assert.True(eliteOk);
Assert.NotNull(elite);
Assert.Equal(200, elite!.MaxHp);
Assert.Equal(8.0, elite.AggroRadius);
Assert.Equal(18.0, elite.LeashRadius);
Assert.Equal(25, elite.AttackDamage);
Assert.Equal(2.5, elite.TelegraphWindupSeconds);
Assert.Equal(3, list.Count);
Assert.Equal(PrototypeNpcBehaviorRegistry.PrototypeEliteMiniBoss, list[0].Id);
Assert.Equal(PrototypeNpcBehaviorRegistry.PrototypeRangedControl, list[^1].Id);
}
finally
{
try
{
Directory.Delete(root.FullName, recursive: true);
}
catch (IOException)
{
// Best-effort: transient lock or race on some hosts; temp dir is unique per run.
}
}
}
[Fact]
public async Task Host_ShouldResolveRegistryFromDi_WhenStartupSucceeds()
{
// Arrange
await using var factory = new InMemoryWebApplicationFactory();
using var client = factory.CreateClient();
_ = await client.GetAsync("/health");
// Act
var registry = factory.Services.GetRequiredService<INpcBehaviorDefinitionRegistry>();
var meleeFound = registry.TryGetDefinition(PrototypeNpcBehaviorRegistry.PrototypeMeleePressure, out var melee);
var unknown = registry.TryGetDefinition("not_a_real_behavior", out var missing);
var normalized = registry.TryNormalizeKnown(" Prototype_Ranged_Control ", out var rangedId);
var list = registry.GetDefinitionsInIdOrder();
// Assert
Assert.True(meleeFound);
Assert.NotNull(melee);
Assert.Equal(100, melee!.MaxHp);
Assert.Equal(15, melee.AttackDamage);
Assert.False(unknown);
Assert.Null(missing);
Assert.True(normalized);
Assert.Equal(PrototypeNpcBehaviorRegistry.PrototypeRangedControl, rangedId);
Assert.Equal(3, list.Count);
Assert.Contains(
list,
b => b.Id == PrototypeNpcBehaviorRegistry.PrototypeEliteMiniBoss && b.MaxHp == 200 && b.AttackDamage == 25);
}
}

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@ -0,0 +1,23 @@
using System.Diagnostics.CodeAnalysis;
namespace NeonSprawl.Server.Game.Npc;
/// <summary>
/// Read-only access to validated <see cref="NpcBehaviorDefRow"/> entries loaded at startup (<see cref="NpcBehaviorDefinitionCatalog"/>).
/// </summary>
/// <remarks>
/// <para><b>E5.M2 (NPC runtime / instance binding):</b> callers validating behavior ids and resolving aggro/telegraph metadata should depend on this interface
/// rather than <see cref="NpcBehaviorDefinitionCatalog"/> so behavior defs stay centralized.</para>
/// <para><b>NEO-90:</b> HTTP/read-model projections should depend on this interface rather than reaching into the catalog.</para>
/// </remarks>
public interface INpcBehaviorDefinitionRegistry
{
/// <summary>Attempts to resolve a behavior by stable <c>id</c> (see <c>npc-behavior-def.schema.json</c>). Unknown ids and <c>null</c> return <c>false</c> without throwing.</summary>
bool TryGetDefinition(string? behaviorId, [NotNullWhen(true)] out NpcBehaviorDefRow? definition);
/// <summary>Trims and lowercases <paramref name="rawBehaviorId"/>; returns <c>true</c> when the normalized id exists in the loaded catalog. <c>null</c>, empty, and whitespace return <c>false</c> without throwing.</summary>
bool TryNormalizeKnown(string? rawBehaviorId, [NotNullWhen(true)] out string normalized);
/// <summary>Every loaded definition, ordered by <see cref="NpcBehaviorDefRow.Id"/> (ordinal).</summary>
IReadOnlyList<NpcBehaviorDefRow> GetDefinitionsInIdOrder();
}

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@ -8,7 +8,7 @@ namespace NeonSprawl.Server.Game.Npc;
/// <summary>DI registration for the fail-fast NPC behavior catalog (NEO-88).</summary>
public static class NpcBehaviorCatalogServiceCollectionExtensions
{
/// <summary>Binds <see cref="ContentPathsOptions"/> and registers <see cref="NpcBehaviorDefinitionCatalog"/> as a singleton.</summary>
/// <summary>Binds <see cref="ContentPathsOptions"/> and registers <see cref="NpcBehaviorDefinitionCatalog"/> and <see cref="INpcBehaviorDefinitionRegistry"/> as singletons.</summary>
public static IServiceCollection AddNpcBehaviorDefinitionCatalog(this IServiceCollection services, IConfiguration configuration)
{
services.AddOptions<ContentPathsOptions>()
@ -32,6 +32,9 @@ public static class NpcBehaviorCatalogServiceCollectionExtensions
return NpcBehaviorDefinitionCatalogLoader.Load(npcBehaviorsDir, schemaPath, logger);
});
services.AddSingleton<INpcBehaviorDefinitionRegistry>(sp =>
new NpcBehaviorDefinitionRegistry(sp.GetRequiredService<NpcBehaviorDefinitionCatalog>()));
return services;
}
}

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@ -2,7 +2,7 @@ using System.Collections.ObjectModel;
namespace NeonSprawl.Server.Game.Npc;
/// <summary>In-memory NPC behavior catalog loaded at startup (NEO-88). Game callers should use INpcBehaviorDefinitionRegistry (NEO-89).</summary>
/// <summary>In-memory NPC behavior catalog loaded at startup (NEO-88). Game callers should use <see cref="INpcBehaviorDefinitionRegistry"/>.</summary>
public sealed class NpcBehaviorDefinitionCatalog(
string npcBehaviorsDirectory,
IReadOnlyDictionary<string, NpcBehaviorDefRow> byId,

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@ -0,0 +1,55 @@
using System.Diagnostics.CodeAnalysis;
namespace NeonSprawl.Server.Game.Npc;
/// <summary>Adapter over <see cref="NpcBehaviorDefinitionCatalog"/> (NEO-89).</summary>
public sealed class NpcBehaviorDefinitionRegistry(NpcBehaviorDefinitionCatalog catalog) : INpcBehaviorDefinitionRegistry
{
private readonly IReadOnlyList<NpcBehaviorDefRow> _definitionsInIdOrder = BuildDefinitionsInIdOrder(catalog);
/// <inheritdoc />
public bool TryGetDefinition(string? behaviorId, [NotNullWhen(true)] out NpcBehaviorDefRow? definition)
{
if (behaviorId is null)
{
definition = null;
return false;
}
return catalog.TryGetBehavior(behaviorId, out definition);
}
/// <inheritdoc />
public bool TryNormalizeKnown(string? rawBehaviorId, [NotNullWhen(true)] out string normalized)
{
if (rawBehaviorId is null)
{
normalized = string.Empty;
return false;
}
normalized = rawBehaviorId.Trim().ToLowerInvariant();
if (normalized.Length == 0)
{
normalized = string.Empty;
return false;
}
return catalog.TryGetBehavior(normalized, out _);
}
/// <inheritdoc />
public IReadOnlyList<NpcBehaviorDefRow> GetDefinitionsInIdOrder() => _definitionsInIdOrder;
private static IReadOnlyList<NpcBehaviorDefRow> BuildDefinitionsInIdOrder(NpcBehaviorDefinitionCatalog catalog)
{
var ids = catalog.ById.Keys.OrderBy(k => k, StringComparer.Ordinal).ToArray();
var list = new List<NpcBehaviorDefRow>(ids.Length);
foreach (var id in ids)
{
list.Add(catalog.ById[id]);
}
return list;
}
}

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@ -0,0 +1,9 @@
namespace NeonSprawl.Server.Game.Npc;
/// <summary>Stable prototype NPC behavior id constants for tests and fixtures (NEO-89). Validation and lookup use <see cref="INpcBehaviorDefinitionRegistry"/>.</summary>
public static class PrototypeNpcBehaviorRegistry
{
public const string PrototypeMeleePressure = "prototype_melee_pressure";
public const string PrototypeRangedControl = "prototype_ranged_control";
public const string PrototypeEliteMiniBoss = "prototype_elite_mini_boss";
}