Added navmesh exporting

Runtime/PSXNavMesh.cs

@@ -0,0 +1,62 @@
+using UnityEngine;
+using Unity.AI.Navigation;
+using UnityEngine.AI;
+using System.Collections.Generic;
+
+
+namespace SplashEdit.RuntimeCode
+{
+    public struct PSXNavMeshTri
+    {
+        public PSXNavmeshVertex v0, v1, v2;
+    }
+
+    public struct PSXNavmeshVertex
+    {
+        public short vx, vy, vz;
+    }
+
+    [RequireComponent(typeof(NavMeshSurface))]
+    public class PSXNavMesh : MonoBehaviour
+    {
+
+        [HideInInspector]
+        public List<PSXNavMeshTri> Navmesh { get; set; }
+
+        public void CreateNavmesh(float GTEScaling)
+        {
+            Navmesh = new List<PSXNavMeshTri>();
+            NavMeshSurface navMeshSurface = GetComponent<NavMeshSurface>();
+            navMeshSurface.BuildNavMesh();
+            NavMeshTriangulation triangulation = NavMesh.CalculateTriangulation();
+
+            int[] triangles = triangulation.indices;
+            Vector3[] vertices = triangulation.vertices;
+
+            for (int i = 0; i < triangles.Length; i += 3)
+            {
+
+
+                int vid0 = triangles[i];
+                int vid1 = triangles[i + 1];
+                int vid2 = triangles[i + 2];
+
+                PSXNavMeshTri tri = new PSXNavMeshTri();
+
+                tri.v0.vx = PSXTrig.ConvertCoordinateToPSX(vertices[vid0].x, GTEScaling);
+                tri.v0.vy = PSXTrig.ConvertCoordinateToPSX(-vertices[vid0].y, GTEScaling);
+                tri.v0.vz = PSXTrig.ConvertCoordinateToPSX(vertices[vid0].z, GTEScaling);
+
+                tri.v1.vx = PSXTrig.ConvertCoordinateToPSX(vertices[vid1].x, GTEScaling);
+                tri.v1.vy = PSXTrig.ConvertCoordinateToPSX(-vertices[vid1].y, GTEScaling);
+                tri.v1.vz = PSXTrig.ConvertCoordinateToPSX(vertices[vid1].z, GTEScaling);
+
+                tri.v2.vx = PSXTrig.ConvertCoordinateToPSX(vertices[vid2].x, GTEScaling);
+                tri.v2.vy = PSXTrig.ConvertCoordinateToPSX(-vertices[vid2].y, GTEScaling);
+                tri.v2.vz = PSXTrig.ConvertCoordinateToPSX(vertices[vid2].z, GTEScaling);
+
+                Navmesh.Add(tri);
+            }
+        }
+    }
+}

Runtime/PSXNavMesh.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 6a2f8d45e1591de1e945b3b7bdfb123b

Runtime/PSXSceneExporter.cs

@@ -4,6 +4,7 @@ using System.IO;
 using System.Linq;
 using UnityEditor;
 using UnityEngine;
+using UnityEngine.AI;
 
 namespace SplashEdit.RuntimeCode
 {
@@ -16,6 +17,7 @@ namespace SplashEdit.RuntimeCode
 
         private PSXObjectExporter[] _exporters;
         private TextureAtlas[] _atlases;
+        private PSXNavMesh[] _navmeshes;
 
         private PSXData _psxData;
 
@@ -34,6 +36,13 @@ namespace SplashEdit.RuntimeCode
                 exp.CreatePSXTextures2D();
                 exp.CreatePSXMesh(GTEScaling);
             }
+
+            _navmeshes = FindObjectsByType<PSXNavMesh>(FindObjectsSortMode.None);
+            foreach (PSXNavMesh navmesh in _navmeshes)
+            {
+                navmesh.CreateNavmesh(GTEScaling);
+            }
+
             PackTextures();
             ExportFile();
         }
@@ -73,6 +82,10 @@ namespace SplashEdit.RuntimeCode
             List<long> clutOffsetPlaceholderPositions = new List<long>();
             List<long> clutDataOffsets = new List<long>();
 
+            // Lists for navmesh data offsets.
+            List<long> navmeshOffsetPlaceholderPositions = new List<long>();
+            List<long> navmeshDataOffsets = new List<long>();
+
             int clutCount = 0;
 
             // Cluts
@@ -94,9 +107,10 @@ namespace SplashEdit.RuntimeCode
                 writer.Write('P'); // 1 byte
                 writer.Write((ushort)1); // 2 bytes - version
                 writer.Write((ushort)_exporters.Length); // 2 bytes
+                writer.Write((ushort)_navmeshes.Length);
                 writer.Write((ushort)_atlases.Length); // 2 bytes
                 writer.Write((ushort)clutCount); // 2 bytes
-                for (int i = 0; i < 3; i++) writer.Write((ushort)0);
+                for (int i = 0; i < 2; i++) writer.Write((ushort)0);
 
                 // GameObject section (exporters)
                 foreach (PSXObjectExporter exporter in _exporters)
@@ -125,6 +139,17 @@ namespace SplashEdit.RuntimeCode
                     writer.Write((ushort)0);
                 }
 
+                // Navmesh metadata section
+                foreach (PSXNavMesh navmesh in _navmeshes)
+                {
+                    // Write placeholder for navmesh raw data offset.
+                    navmeshOffsetPlaceholderPositions.Add(writer.BaseStream.Position);
+                    writer.Write((int)0); // 4-byte placeholder for navmesh data offset.
+
+                    writer.Write((ushort)navmesh.Navmesh.Count);
+                    writer.Write((ushort)0);
+                }
+
                 // Atlas metadata section
                 foreach (TextureAtlas atlas in _atlases)
                 {
@@ -228,6 +253,27 @@ namespace SplashEdit.RuntimeCode
                     }
                 }
 
+                foreach (PSXNavMesh navmesh in _navmeshes) {
+                    AlignToFourBytes(writer);
+                    long navmeshDataOffset = writer.BaseStream.Position;
+                    navmeshDataOffsets.Add(navmeshDataOffset);
+
+                    foreach(PSXNavMeshTri tri in navmesh.Navmesh) {
+                        writer.Write((ushort) tri.v0.vx);
+                        writer.Write((ushort) tri.v0.vy);
+                        writer.Write((ushort) tri.v0.vz);
+
+                        writer.Write((ushort) tri.v1.vx);
+                        writer.Write((ushort) tri.v1.vy);
+                        writer.Write((ushort) tri.v1.vz);
+
+                        writer.Write((ushort) tri.v2.vx);
+                        writer.Write((ushort) tri.v2.vy);
+                        writer.Write((ushort) tri.v2.vz);
+                    }
+
+                }
+
                 // Atlas data section: Write raw texture data for each atlas.
                 foreach (TextureAtlas atlas in _atlases)
                 {
@@ -257,7 +303,8 @@ namespace SplashEdit.RuntimeCode
                             long clutDataOffset = writer.BaseStream.Position;
                             clutDataOffsets.Add(clutDataOffset);
 
-                            foreach(VRAMPixel color in texture.ColorPalette) {
+                            foreach (VRAMPixel color in texture.ColorPalette)
+                            {
                                 writer.Write((ushort)color.Pack());
                             }
                         }
@@ -279,6 +326,21 @@ namespace SplashEdit.RuntimeCode
                     Debug.LogError("Mismatch between metadata mesh offset placeholders and mesh data blocks!");
                 }
 
+                // Backfill the navmesh offsets into the metadata section.
+                if (navmeshOffsetPlaceholderPositions.Count == navmeshDataOffsets.Count)
+                {
+                    for (int i = 0; i < navmeshOffsetPlaceholderPositions.Count; i++)
+                    {
+                        writer.Seek((int)navmeshOffsetPlaceholderPositions[i], SeekOrigin.Begin);
+                        writer.Write((int)navmeshDataOffsets[i]);
+                    }
+                }
+                else
+                {
+                    Debug.LogError("Mismatch between metadata mesh offset placeholders and mesh data blocks!");
+                }
+
+
                 // Backfill the atlas data offsets into the metadata section.
                 if (atlasOffsetPlaceholderPositions.Count == atlasDataOffsets.Count)
                 {

Runtime/Utils.cs

@@ -1,7 +1,5 @@
-using System.Runtime.InteropServices;
 using UnityEditor;
 using System.Collections.Generic;
-using UnityEditor;
 using UnityEngine;
 
 namespace SplashEdit.RuntimeCode

Runtime/net.psxsplash.splashedit.Runtime.asmdef

@@ -1,7 +1,9 @@
 {
     "name": "net.psxsplash.splashedit.Runtime",
     "rootNamespace": "",
-    "references": [],
+    "references": [
+        "GUID:8c4dd21966739024fbd72155091d199e"
+    ],
     "includePlatforms": [],
     "excludePlatforms": [],
     "allowUnsafeCode": false,

package.json

@@ -3,6 +3,8 @@
   "version": "1.0.0",
   "displayName": "Splashedit",
   "description": "A toolkit for PSX asset management within Unity",
-    "unity": "6000.0"
+  "unity": "6000.0",
+  "dependencies": {
+    "com.unity.ai.navigation": "2.0.6"
+  }
 }
-