reorganize navmesh contracts and services

Split VoxelWorld nav contracts into focused files and extract clustered coverage helpers so the navmesh service stays a coordinator instead of a catch-all runtime file.
2026-04-08 20:31:16 +03:00
parent 289d5f783b
commit 2757bf3a3b
18 changed files with 917 additions and 748 deletions
@@ -0,0 +1,84 @@
+using System.Collections.Generic;
+using InfiniteWorld.VoxelWorld.Contracts;
+using UnityEngine;
+using UnityEngine.AI;
+
+namespace InfiniteWorld.VoxelWorld.NavMesh
+{
+    internal static class NavBuildSourceCollector
+    {
+        public static bool CollectBuildSources(
+            IChunkNavSourceReader chunkNavSourceReader,
+            Bounds coverageBounds,
+            List<Vector2Int> loadedChunkCoords,
+            List<NavMeshBuildSource> results)
+        {
+            loadedChunkCoords.Clear();
+            chunkNavSourceReader.GetLoadedChunkCoords(loadedChunkCoords);
+
+            bool hasSources = false;
+            for (int i = 0; i < loadedChunkCoords.Count; i++)
+            {
+                Vector2Int chunkCoord = loadedChunkCoords[i];
+                if (!NavMeshBoundsUtility.IntersectsXZ(GetChunkWorldBounds(chunkNavSourceReader, chunkCoord), coverageBounds))
+                {
+                    continue;
+                }
+
+                if (!chunkNavSourceReader.TryGetChunkNavSourceSnapshot(chunkCoord, out ChunkNavSourceSnapshot snapshot) || snapshot.Sources == null || snapshot.Sources.Length == 0)
+                {
+                    continue;
+                }
+
+                hasSources = true;
+                AppendBuildSources(snapshot.Sources, results);
+            }
+
+            return hasSources;
+        }
+
+        public static Bounds GetChunkWorldBounds(IChunkNavSourceReader chunkNavSourceReader, Vector2Int chunkCoord)
+        {
+            float chunkSize = Mathf.Max(1f, chunkNavSourceReader.ChunkWorldSize);
+            Vector3 min = new Vector3(chunkCoord.x * chunkSize, -500f, chunkCoord.y * chunkSize);
+            Vector3 size = new Vector3(chunkSize, 1000f, chunkSize);
+            return new Bounds(min + new Vector3(chunkSize * 0.5f, 0f, chunkSize * 0.5f), size);
+        }
+
+        public static Bounds ExpandCoverageBounds(IChunkNavSourceReader chunkNavSourceReader, Bounds bounds, int chunkMargin)
+        {
+            return ExpandChunkBounds(chunkNavSourceReader, bounds, chunkMargin);
+        }
+
+        public static Bounds ExpandChunkBounds(IChunkNavSourceReader chunkNavSourceReader, Bounds bounds, int chunkMargin)
+        {
+            float chunkSize = Mathf.Max(1f, chunkNavSourceReader.ChunkWorldSize);
+            float horizontalPadding = chunkMargin * chunkSize;
+            bounds.Expand(new Vector3(horizontalPadding * 2f, 0f, horizontalPadding * 2f));
+            return bounds;
+        }
+
+        private static void AppendBuildSources(ChunkNavBuildSourceDescriptor[] descriptors, List<NavMeshBuildSource> results)
+        {
+            for (int i = 0; i < descriptors.Length; i++)
+            {
+                ChunkNavBuildSourceDescriptor descriptor = descriptors[i];
+                if (descriptor.Shape == NavMeshBuildSourceShape.Mesh && descriptor.Mesh == null)
+                {
+                    continue;
+                }
+
+                NavMeshBuildSource source = new NavMeshBuildSource
+                {
+                    area = descriptor.Area,
+                    shape = descriptor.Shape,
+                    transform = descriptor.Transform,
+                    size = descriptor.Size,
+                    sourceObject = descriptor.Shape == NavMeshBuildSourceShape.Mesh ? descriptor.Mesh : null
+                };
+
+                results.Add(source);
+            }
+        }
+    }
+}