psst
This commit is contained in:
Jan Racek
693
Runtime/PSXSceneWriter.cs
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693
Runtime/PSXSceneWriter.cs
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@@ -0,0 +1,693 @@
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using UnityEngine;
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namespace SplashEdit.RuntimeCode
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{
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/// <summary>
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/// Pure binary serializer for the splashpack v8 format.
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/// All I/O extracted from PSXSceneExporter so the MonoBehaviour stays thin.
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/// </summary>
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public static class PSXSceneWriter
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{
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/// <summary>
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/// All scene data needed to produce a .bin file.
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/// Populated by PSXSceneExporter before calling <see cref="Write"/>.
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/// </summary>
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public struct SceneData
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{
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public PSXObjectExporter[] exporters;
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public TextureAtlas[] atlases;
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public PSXInteractable[] interactables;
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public AudioClipExport[] audioClips;
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public PSXCollisionExporter collisionExporter;
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public PSXNavRegionBuilder navRegionBuilder;
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public PSXRoomBuilder roomBuilder;
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public BVH bvh;
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public LuaFile sceneLuaFile;
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public float gteScaling;
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// Player
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public Vector3 playerPos;
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public Quaternion playerRot;
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public float playerHeight;
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public float playerRadius;
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public float moveSpeed;
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public float sprintSpeed;
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public float jumpHeight;
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public float gravity;
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// Scene configuration (v11)
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public int sceneType; // 0=exterior, 1=interior
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public bool fogEnabled;
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public Color fogColor;
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public int fogDensity; // 1-10
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}
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// ─── Offset bookkeeping ───
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private sealed class OffsetData
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{
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public readonly List<long> PlaceholderPositions = new List<long>();
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public readonly List<long> DataOffsets = new List<long>();
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}
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// ═══════════════════════════════════════════════════════════════
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// Public API
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// ═══════════════════════════════════════════════════════════════
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/// <summary>
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/// Serialize the scene to a splashpack v8 binary file.
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/// </summary>
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/// <param name="path">Absolute file path to write.</param>
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/// <param name="scene">Pre-built scene data.</param>
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/// <param name="log">Optional callback for progress messages.</param>
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public static void Write(string path, in SceneData scene, Action<string, LogType> log = null)
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{
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float gte = scene.gteScaling;
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int totalFaces = 0;
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OffsetData luaOffset = new OffsetData();
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OffsetData meshOffset = new OffsetData();
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OffsetData atlasOffset = new OffsetData();
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OffsetData clutOffset = new OffsetData();
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int clutCount = 0;
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List<LuaFile> luaFiles = new List<LuaFile>();
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// Count CLUTs
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foreach (TextureAtlas atlas in scene.atlases)
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{
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foreach (var texture in atlas.ContainedTextures)
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{
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if (texture.ColorPalette != null)
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clutCount++;
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}
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}
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// Collect unique Lua files
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foreach (PSXObjectExporter exporter in scene.exporters)
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{
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if (exporter.LuaFile != null && !luaFiles.Contains(exporter.LuaFile))
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luaFiles.Add(exporter.LuaFile);
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}
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if (scene.sceneLuaFile != null && !luaFiles.Contains(scene.sceneLuaFile))
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luaFiles.Add(scene.sceneLuaFile);
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using (BinaryWriter writer = new BinaryWriter(File.Open(path, FileMode.Create)))
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{
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int colliderCount = 0;
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foreach (var e in scene.exporters)
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{
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if (e.CollisionType != PSXCollisionType.None)
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colliderCount++;
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}
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// Build exporter index lookup for components
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Dictionary<PSXObjectExporter, int> exporterIndex = new Dictionary<PSXObjectExporter, int>();
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for (int i = 0; i < scene.exporters.Length; i++)
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exporterIndex[scene.exporters[i]] = i;
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// ──────────────────────────────────────────────────────
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// Header (72 bytes total — splashpack v8)
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// ──────────────────────────────────────────────────────
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writer.Write('S');
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writer.Write('P');
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writer.Write((ushort)11); // version
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writer.Write((ushort)luaFiles.Count);
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writer.Write((ushort)scene.exporters.Length);
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writer.Write((ushort)0); // navmeshCount (legacy)
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writer.Write((ushort)scene.atlases.Length);
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writer.Write((ushort)clutCount);
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writer.Write((ushort)colliderCount);
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writer.Write((ushort)PSXTrig.ConvertCoordinateToPSX(scene.playerPos.x, gte));
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writer.Write((ushort)PSXTrig.ConvertCoordinateToPSX(-scene.playerPos.y, gte));
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writer.Write((ushort)PSXTrig.ConvertCoordinateToPSX(scene.playerPos.z, gte));
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writer.Write((ushort)PSXTrig.ConvertToFixed12(scene.playerRot.eulerAngles.x * Mathf.Deg2Rad));
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writer.Write((ushort)PSXTrig.ConvertToFixed12(scene.playerRot.eulerAngles.y * Mathf.Deg2Rad));
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writer.Write((ushort)PSXTrig.ConvertToFixed12(scene.playerRot.eulerAngles.z * Mathf.Deg2Rad));
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writer.Write((ushort)PSXTrig.ConvertCoordinateToPSX(scene.playerHeight, gte));
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// Scene Lua index
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if (scene.sceneLuaFile != null)
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writer.Write((short)luaFiles.IndexOf(scene.sceneLuaFile));
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else
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writer.Write((short)-1);
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// BVH info
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writer.Write((ushort)scene.bvh.NodeCount);
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writer.Write((ushort)scene.bvh.TriangleRefCount);
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// Component counts (version 4)
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writer.Write((ushort)scene.interactables.Length);
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writer.Write((ushort)0); // healthCount (removed)
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writer.Write((ushort)0); // timerCount (removed)
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writer.Write((ushort)0); // spawnerCount (removed)
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// NavGrid (version 5, legacy)
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writer.Write((ushort)0);
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writer.Write((ushort)0);
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// Scene type (version 6)
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writer.Write((ushort)scene.sceneType); // 0=exterior, 1=interior
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writer.Write((ushort)0);
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// World collision + nav regions (version 7)
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writer.Write((ushort)scene.collisionExporter.MeshCount);
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writer.Write((ushort)scene.collisionExporter.TriangleCount);
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writer.Write((ushort)scene.navRegionBuilder.RegionCount);
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writer.Write((ushort)scene.navRegionBuilder.PortalCount);
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// Movement parameters (version 8, 12 bytes)
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{
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const float fps = 30f;
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float movePerFrame = scene.moveSpeed / fps / gte;
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float sprintPerFrame = scene.sprintSpeed / fps / gte;
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writer.Write((ushort)Mathf.Clamp(Mathf.RoundToInt(movePerFrame * 4096f), 0, 65535));
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writer.Write((ushort)Mathf.Clamp(Mathf.RoundToInt(sprintPerFrame * 4096f), 0, 65535));
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float jumpVel = Mathf.Sqrt(2f * scene.gravity * scene.jumpHeight) / gte;
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writer.Write((ushort)Mathf.Clamp(Mathf.RoundToInt(jumpVel * 4096f), 0, 65535));
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float gravPsx = scene.gravity / gte;
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writer.Write((ushort)Mathf.Clamp(Mathf.RoundToInt(gravPsx * 4096f), 0, 65535));
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writer.Write((ushort)PSXTrig.ConvertCoordinateToPSX(scene.playerRadius, gte));
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writer.Write((ushort)0); // padding
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}
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// Name table offset placeholder (version 9, 4 bytes)
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long nameTableOffsetPos = writer.BaseStream.Position;
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writer.Write((uint)0); // placeholder for name table offset
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// Audio clip info (version 10, 8 bytes)
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int audioClipCount = scene.audioClips?.Length ?? 0;
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writer.Write((ushort)audioClipCount);
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writer.Write((ushort)0); // padding
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long audioTableOffsetPos = writer.BaseStream.Position;
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writer.Write((uint)0); // placeholder for audio table offset
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// Fog + room/portal header (version 11, 12 bytes)
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{
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writer.Write((byte)(scene.fogEnabled ? 1 : 0));
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writer.Write((byte)Mathf.Clamp(Mathf.RoundToInt(scene.fogColor.r * 255f), 0, 255));
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writer.Write((byte)Mathf.Clamp(Mathf.RoundToInt(scene.fogColor.g * 255f), 0, 255));
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writer.Write((byte)Mathf.Clamp(Mathf.RoundToInt(scene.fogColor.b * 255f), 0, 255));
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writer.Write((byte)Mathf.Clamp(scene.fogDensity, 1, 10));
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writer.Write((byte)0); // reserved
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int roomCount = scene.roomBuilder?.RoomCount ?? 0;
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int portalCount = scene.roomBuilder?.PortalCount ?? 0;
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int roomTriRefCount = scene.roomBuilder?.TotalTriRefCount ?? 0;
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// roomCount is the room count NOT including catch-all; the binary adds +1 for it
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writer.Write((ushort)(roomCount > 0 ? roomCount + 1 : 0));
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writer.Write((ushort)portalCount);
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writer.Write((ushort)roomTriRefCount);
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}
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// ──────────────────────────────────────────────────────
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// Lua file metadata
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// ──────────────────────────────────────────────────────
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foreach (LuaFile luaFile in luaFiles)
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{
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luaOffset.PlaceholderPositions.Add(writer.BaseStream.Position);
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writer.Write((int)0); // placeholder
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writer.Write((uint)Encoding.UTF8.GetByteCount(luaFile.LuaScript));
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}
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// ──────────────────────────────────────────────────────
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// GameObject section
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// ──────────────────────────────────────────────────────
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Dictionary<PSXObjectExporter, int> interactableIndices = new Dictionary<PSXObjectExporter, int>();
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for (int i = 0; i < scene.interactables.Length; i++)
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{
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var exp = scene.interactables[i].GetComponent<PSXObjectExporter>();
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if (exp != null) interactableIndices[exp] = i;
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}
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foreach (PSXObjectExporter exporter in scene.exporters)
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{
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meshOffset.PlaceholderPositions.Add(writer.BaseStream.Position);
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writer.Write((int)0); // placeholder
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// Transform — position as 20.12 fixed-point
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Vector3 pos = exporter.transform.localToWorldMatrix.GetPosition();
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writer.Write(PSXTrig.ConvertWorldToFixed12(pos.x / gte));
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writer.Write(PSXTrig.ConvertWorldToFixed12(-pos.y / gte));
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writer.Write(PSXTrig.ConvertWorldToFixed12(pos.z / gte));
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int[,] rot = PSXTrig.ConvertRotationToPSXMatrix(exporter.transform.rotation);
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for (int r = 0; r < 3; r++)
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for (int c = 0; c < 3; c++)
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writer.Write((int)rot[r, c]);
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writer.Write((ushort)exporter.Mesh.Triangles.Count);
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if (exporter.LuaFile != null)
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writer.Write((short)luaFiles.IndexOf(exporter.LuaFile));
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else
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writer.Write((short)-1);
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// Bitfield (LSB = isActive)
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writer.Write(exporter.IsActive ? 1 : 0);
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// Component indices (8 bytes)
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writer.Write(interactableIndices.TryGetValue(exporter, out int interactIdx) ? (ushort)interactIdx : (ushort)0xFFFF);
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writer.Write((ushort)0xFFFF); // _reserved0 (legacy healthIndex)
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writer.Write((uint)0); // eventMask (runtime-only, must be zero)
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// World-space AABB (24 bytes)
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WriteObjectAABB(writer, exporter, gte);
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}
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// ──────────────────────────────────────────────────────
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// Collider metadata (32 bytes each)
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// ──────────────────────────────────────────────────────
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for (int exporterIdx = 0; exporterIdx < scene.exporters.Length; exporterIdx++)
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{
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PSXObjectExporter exporter = scene.exporters[exporterIdx];
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if (exporter.CollisionType == PSXCollisionType.None)
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continue;
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MeshFilter meshFilter = exporter.GetComponent<MeshFilter>();
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Mesh collisionMesh = exporter.CustomCollisionMesh != null
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? exporter.CustomCollisionMesh
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: meshFilter?.sharedMesh;
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if (collisionMesh == null)
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continue;
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WriteWorldAABB(writer, exporter, collisionMesh.bounds, gte);
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// Collision metadata (8 bytes)
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writer.Write((byte)exporter.CollisionType);
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writer.Write((byte)(1 << (exporter.CollisionLayer - 1)));
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writer.Write((ushort)exporterIdx);
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writer.Write((uint)0); // padding
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}
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// ──────────────────────────────────────────────────────
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// BVH data (inline)
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// ──────────────────────────────────────────────────────
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AlignToFourBytes(writer);
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scene.bvh.WriteToBinary(writer, gte);
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// ──────────────────────────────────────────────────────
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// Interactable components (24 bytes each)
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// ──────────────────────────────────────────────────────
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AlignToFourBytes(writer);
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foreach (PSXInteractable interactable in scene.interactables)
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{
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var exp = interactable.GetComponent<PSXObjectExporter>();
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int goIndex = exporterIndex.TryGetValue(exp, out int idx) ? idx : 0xFFFF;
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float radiusSq = interactable.InteractionRadius * interactable.InteractionRadius;
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writer.Write(PSXTrig.ConvertWorldToFixed12(radiusSq / (gte * gte)));
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Vector3 offset = interactable.InteractionOffset;
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writer.Write(PSXTrig.ConvertWorldToFixed12(offset.x / gte));
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writer.Write(PSXTrig.ConvertWorldToFixed12(-offset.y / gte));
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writer.Write(PSXTrig.ConvertWorldToFixed12(offset.z / gte));
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writer.Write((byte)interactable.InteractButton);
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byte flags = 0;
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if (interactable.IsRepeatable) flags |= 0x01;
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if (interactable.ShowPrompt) flags |= 0x02;
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if (interactable.RequireLineOfSight) flags |= 0x04;
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writer.Write(flags);
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writer.Write(interactable.CooldownFrames);
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writer.Write((ushort)0); // currentCooldown (runtime)
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writer.Write((ushort)goIndex);
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}
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// ──────────────────────────────────────────────────────
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// World collision soup (version 7+)
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// ──────────────────────────────────────────────────────
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if (scene.collisionExporter.MeshCount > 0)
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{
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AlignToFourBytes(writer);
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scene.collisionExporter.WriteToBinary(writer, gte);
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}
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// ──────────────────────────────────────────────────────
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// Nav region data (version 7+)
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// ──────────────────────────────────────────────────────
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if (scene.navRegionBuilder.RegionCount > 0)
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{
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AlignToFourBytes(writer);
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scene.navRegionBuilder.WriteToBinary(writer, gte);
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}
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// ──────────────────────────────────────────────────────
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// Room/portal data (version 11, interior scenes)
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// Must be in the sequential cursor section (after nav regions,
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// before atlas metadata) so the C++ reader can find it.
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// ──────────────────────────────────────────────────────
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if (scene.roomBuilder != null && scene.roomBuilder.RoomCount > 0)
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{
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AlignToFourBytes(writer);
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scene.roomBuilder.WriteToBinary(writer, scene.gteScaling);
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log?.Invoke($"Room/portal data: {scene.roomBuilder.RoomCount} rooms, {scene.roomBuilder.PortalCount} portals, {scene.roomBuilder.TotalTriRefCount} tri-refs.", LogType.Log);
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}
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// ──────────────────────────────────────────────────────
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// Atlas metadata
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// ──────────────────────────────────────────────────────
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foreach (TextureAtlas atlas in scene.atlases)
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{
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atlasOffset.PlaceholderPositions.Add(writer.BaseStream.Position);
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writer.Write((int)0); // placeholder
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writer.Write((ushort)atlas.Width);
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writer.Write((ushort)TextureAtlas.Height);
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writer.Write((ushort)atlas.PositionX);
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writer.Write((ushort)atlas.PositionY);
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}
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// ──────────────────────────────────────────────────────
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// CLUT metadata
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// ──────────────────────────────────────────────────────
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foreach (TextureAtlas atlas in scene.atlases)
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{
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foreach (var texture in atlas.ContainedTextures)
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{
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if (texture.ColorPalette != null)
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{
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clutOffset.PlaceholderPositions.Add(writer.BaseStream.Position);
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writer.Write((int)0); // placeholder
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writer.Write((ushort)texture.ClutPackingX);
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writer.Write((ushort)texture.ClutPackingY);
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writer.Write((ushort)texture.ColorPalette.Count);
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writer.Write((ushort)0);
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}
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}
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}
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// ══════════════════════════════════════════════════════
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// Data sections
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// ══════════════════════════════════════════════════════
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// Lua data
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foreach (LuaFile luaFile in luaFiles)
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{
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AlignToFourBytes(writer);
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luaOffset.DataOffsets.Add(writer.BaseStream.Position);
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writer.Write(Encoding.UTF8.GetBytes(luaFile.LuaScript));
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}
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// Mesh data
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foreach (PSXObjectExporter exporter in scene.exporters)
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{
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AlignToFourBytes(writer);
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meshOffset.DataOffsets.Add(writer.BaseStream.Position);
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totalFaces += exporter.Mesh.Triangles.Count;
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foreach (Tri tri in exporter.Mesh.Triangles)
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{
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// Vertex positions (3 × 6 bytes)
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WriteVertexPosition(writer, tri.v0);
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WriteVertexPosition(writer, tri.v1);
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WriteVertexPosition(writer, tri.v2);
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// Normal for v0 only
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WriteVertexNormals(writer, tri.v0);
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// Vertex colors (3 × 4 bytes)
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WriteVertexColor(writer, tri.v0);
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WriteVertexColor(writer, tri.v1);
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WriteVertexColor(writer, tri.v2);
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if (tri.IsUntextured)
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{
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// Zero UVs
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writer.Write((byte)0); writer.Write((byte)0);
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writer.Write((byte)0); writer.Write((byte)0);
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writer.Write((byte)0); writer.Write((byte)0);
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writer.Write((ushort)0); // padding
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||||
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// Sentinel tpage = 0xFFFF marks untextured
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writer.Write((ushort)0xFFFF);
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writer.Write((ushort)0);
|
||||
writer.Write((ushort)0);
|
||||
writer.Write((ushort)0);
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||||
}
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||||
else
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||||
{
|
||||
PSXTexture2D tex = exporter.GetTexture(tri.TextureIndex);
|
||||
int expander = 16 / (int)tex.BitDepth;
|
||||
|
||||
WriteVertexUV(writer, tri.v0, tex, expander);
|
||||
WriteVertexUV(writer, tri.v1, tex, expander);
|
||||
WriteVertexUV(writer, tri.v2, tex, expander);
|
||||
writer.Write((ushort)0); // padding
|
||||
|
||||
TPageAttr tpage = new TPageAttr();
|
||||
tpage.SetPageX(tex.TexpageX);
|
||||
tpage.SetPageY(tex.TexpageY);
|
||||
tpage.Set(tex.BitDepth.ToColorMode());
|
||||
tpage.SetDithering(true);
|
||||
writer.Write((ushort)tpage.info);
|
||||
writer.Write((ushort)tex.ClutPackingX);
|
||||
writer.Write((ushort)tex.ClutPackingY);
|
||||
writer.Write((ushort)0); // padding
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Atlas pixel data
|
||||
foreach (TextureAtlas atlas in scene.atlases)
|
||||
{
|
||||
AlignToFourBytes(writer);
|
||||
atlasOffset.DataOffsets.Add(writer.BaseStream.Position);
|
||||
|
||||
for (int y = 0; y < atlas.vramPixels.GetLength(1); y++)
|
||||
for (int x = 0; x < atlas.vramPixels.GetLength(0); x++)
|
||||
writer.Write(atlas.vramPixels[x, y].Pack());
|
||||
}
|
||||
|
||||
// CLUT data
|
||||
foreach (TextureAtlas atlas in scene.atlases)
|
||||
{
|
||||
foreach (var texture in atlas.ContainedTextures)
|
||||
{
|
||||
if (texture.ColorPalette != null)
|
||||
{
|
||||
AlignToFourBytes(writer);
|
||||
clutOffset.DataOffsets.Add(writer.BaseStream.Position);
|
||||
|
||||
foreach (VRAMPixel color in texture.ColorPalette)
|
||||
writer.Write((ushort)color.Pack());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ──────────────────────────────────────────────────────
|
||||
// Object name table (version 9)
|
||||
// ──────────────────────────────────────────────────────
|
||||
AlignToFourBytes(writer);
|
||||
long nameTableStart = writer.BaseStream.Position;
|
||||
foreach (PSXObjectExporter exporter in scene.exporters)
|
||||
{
|
||||
string objName = exporter.gameObject.name;
|
||||
if (objName.Length > 24) objName = objName.Substring(0, 24);
|
||||
byte[] nameBytes = Encoding.UTF8.GetBytes(objName);
|
||||
writer.Write((byte)nameBytes.Length);
|
||||
writer.Write(nameBytes);
|
||||
writer.Write((byte)0); // null terminator
|
||||
}
|
||||
|
||||
// Backfill name table offset
|
||||
{
|
||||
long endPos = writer.BaseStream.Position;
|
||||
writer.Seek((int)nameTableOffsetPos, SeekOrigin.Begin);
|
||||
writer.Write((uint)nameTableStart);
|
||||
writer.Seek((int)endPos, SeekOrigin.Begin);
|
||||
}
|
||||
|
||||
// ──────────────────────────────────────────────────────
|
||||
// Audio clip data (version 10)
|
||||
// ──────────────────────────────────────────────────────
|
||||
if (audioClipCount > 0 && scene.audioClips != null)
|
||||
{
|
||||
// Write audio table: per clip metadata (12 bytes each)
|
||||
AlignToFourBytes(writer);
|
||||
long audioTableStart = writer.BaseStream.Position;
|
||||
|
||||
// First pass: write metadata placeholders (16 bytes each)
|
||||
List<long> audioDataOffsetPositions = new List<long>();
|
||||
List<long> audioNameOffsetPositions = new List<long>();
|
||||
for (int i = 0; i < audioClipCount; i++)
|
||||
{
|
||||
var clip = scene.audioClips[i];
|
||||
audioDataOffsetPositions.Add(writer.BaseStream.Position);
|
||||
writer.Write((uint)0); // dataOffset placeholder
|
||||
writer.Write((uint)(clip.adpcmData?.Length ?? 0)); // sizeBytes
|
||||
writer.Write((ushort)clip.sampleRate);
|
||||
string name = clip.clipName ?? "";
|
||||
writer.Write((byte)(clip.loop ? 1 : 0));
|
||||
writer.Write((byte)System.Math.Min(name.Length, 255));
|
||||
audioNameOffsetPositions.Add(writer.BaseStream.Position);
|
||||
writer.Write((uint)0); // nameOffset placeholder
|
||||
}
|
||||
|
||||
// Second pass: write ADPCM data and backfill offsets
|
||||
for (int i = 0; i < audioClipCount; i++)
|
||||
{
|
||||
byte[] data = scene.audioClips[i].adpcmData;
|
||||
if (data != null && data.Length > 0)
|
||||
{
|
||||
AlignToFourBytes(writer);
|
||||
long dataPos = writer.BaseStream.Position;
|
||||
writer.Write(data);
|
||||
|
||||
// Backfill data offset
|
||||
long curPos = writer.BaseStream.Position;
|
||||
writer.Seek((int)audioDataOffsetPositions[i], SeekOrigin.Begin);
|
||||
writer.Write((uint)dataPos);
|
||||
writer.Seek((int)curPos, SeekOrigin.Begin);
|
||||
}
|
||||
}
|
||||
|
||||
// Backfill audio table offset in header
|
||||
{
|
||||
long curPos = writer.BaseStream.Position;
|
||||
writer.Seek((int)audioTableOffsetPos, SeekOrigin.Begin);
|
||||
writer.Write((uint)audioTableStart);
|
||||
writer.Seek((int)curPos, SeekOrigin.Begin);
|
||||
}
|
||||
|
||||
int totalAudioBytes = 0;
|
||||
foreach (var clip in scene.audioClips)
|
||||
if (clip.adpcmData != null) totalAudioBytes += clip.adpcmData.Length;
|
||||
|
||||
// Third pass: write audio clip names and backfill name offsets
|
||||
for (int i = 0; i < audioClipCount; i++)
|
||||
{
|
||||
string name = scene.audioClips[i].clipName ?? "";
|
||||
if (name.Length > 255) name = name.Substring(0, 255);
|
||||
long namePos = writer.BaseStream.Position;
|
||||
byte[] nameBytes = System.Text.Encoding.ASCII.GetBytes(name);
|
||||
writer.Write(nameBytes);
|
||||
writer.Write((byte)0); // null terminator
|
||||
|
||||
long curPos = writer.BaseStream.Position;
|
||||
writer.Seek((int)audioNameOffsetPositions[i], SeekOrigin.Begin);
|
||||
writer.Write((uint)namePos);
|
||||
writer.Seek((int)curPos, SeekOrigin.Begin);
|
||||
}
|
||||
|
||||
log?.Invoke($"{audioClipCount} audio clips ({totalAudioBytes / 1024}KB ADPCM) written.", LogType.Log);
|
||||
}
|
||||
|
||||
// Backfill offsets
|
||||
BackfillOffsets(writer, luaOffset, "lua", log);
|
||||
BackfillOffsets(writer, meshOffset, "mesh", log);
|
||||
BackfillOffsets(writer, atlasOffset, "atlas", log);
|
||||
BackfillOffsets(writer, clutOffset, "clut", log);
|
||||
}
|
||||
|
||||
log?.Invoke($"{totalFaces} faces written to {Path.GetFileName(path)}", LogType.Log);
|
||||
}
|
||||
|
||||
// ═══════════════════════════════════════════════════════════════
|
||||
// Static helpers
|
||||
// ═══════════════════════════════════════════════════════════════
|
||||
|
||||
private static void WriteVertexPosition(BinaryWriter w, PSXVertex v)
|
||||
{
|
||||
w.Write((short)v.vx);
|
||||
w.Write((short)v.vy);
|
||||
w.Write((short)v.vz);
|
||||
}
|
||||
|
||||
private static void WriteVertexNormals(BinaryWriter w, PSXVertex v)
|
||||
{
|
||||
w.Write((short)v.nx);
|
||||
w.Write((short)v.ny);
|
||||
w.Write((short)v.nz);
|
||||
}
|
||||
|
||||
private static void WriteVertexColor(BinaryWriter w, PSXVertex v)
|
||||
{
|
||||
w.Write((byte)v.r);
|
||||
w.Write((byte)v.g);
|
||||
w.Write((byte)v.b);
|
||||
w.Write((byte)0); // padding
|
||||
}
|
||||
|
||||
private static void WriteVertexUV(BinaryWriter w, PSXVertex v, PSXTexture2D t, int expander)
|
||||
{
|
||||
w.Write((byte)(v.u + t.PackingX * expander));
|
||||
w.Write((byte)(v.v + t.PackingY));
|
||||
}
|
||||
|
||||
private static void WriteObjectAABB(BinaryWriter writer, PSXObjectExporter exporter, float gte)
|
||||
{
|
||||
MeshFilter mf = exporter.GetComponent<MeshFilter>();
|
||||
Mesh mesh = mf?.sharedMesh;
|
||||
if (mesh != null)
|
||||
{
|
||||
WriteWorldAABB(writer, exporter, mesh.bounds, gte);
|
||||
}
|
||||
else
|
||||
{
|
||||
for (int z = 0; z < 6; z++) writer.Write((int)0);
|
||||
}
|
||||
}
|
||||
|
||||
private static void WriteWorldAABB(BinaryWriter writer, PSXObjectExporter exporter, Bounds localBounds, float gte)
|
||||
{
|
||||
Vector3 ext = localBounds.extents;
|
||||
Vector3 center = localBounds.center;
|
||||
Vector3 aabbMin = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
|
||||
Vector3 aabbMax = new Vector3(float.MinValue, float.MinValue, float.MinValue);
|
||||
|
||||
// Compute world-space AABB from 8 transformed corners
|
||||
for (int i = 0; i < 8; i++)
|
||||
{
|
||||
Vector3 corner = center + new Vector3(
|
||||
(i & 1) != 0 ? ext.x : -ext.x,
|
||||
(i & 2) != 0 ? ext.y : -ext.y,
|
||||
(i & 4) != 0 ? ext.z : -ext.z
|
||||
);
|
||||
Vector3 world = exporter.transform.TransformPoint(corner);
|
||||
aabbMin = Vector3.Min(aabbMin, world);
|
||||
aabbMax = Vector3.Max(aabbMax, world);
|
||||
}
|
||||
|
||||
// PS1 coordinate space (negate Y, swap min/max)
|
||||
writer.Write(PSXTrig.ConvertWorldToFixed12(aabbMin.x / gte));
|
||||
writer.Write(PSXTrig.ConvertWorldToFixed12(-aabbMax.y / gte));
|
||||
writer.Write(PSXTrig.ConvertWorldToFixed12(aabbMin.z / gte));
|
||||
writer.Write(PSXTrig.ConvertWorldToFixed12(aabbMax.x / gte));
|
||||
writer.Write(PSXTrig.ConvertWorldToFixed12(-aabbMin.y / gte));
|
||||
writer.Write(PSXTrig.ConvertWorldToFixed12(aabbMax.z / gte));
|
||||
}
|
||||
|
||||
private static void AlignToFourBytes(BinaryWriter writer)
|
||||
{
|
||||
long pos = writer.BaseStream.Position;
|
||||
int padding = (int)(4 - (pos % 4)) % 4;
|
||||
if (padding > 0)
|
||||
writer.Write(new byte[padding]);
|
||||
}
|
||||
|
||||
private static void BackfillOffsets(BinaryWriter writer, OffsetData data, string sectionName, Action<string, LogType> log)
|
||||
{
|
||||
if (data.PlaceholderPositions.Count != data.DataOffsets.Count)
|
||||
{
|
||||
log?.Invoke($"Offset mismatch in {sectionName}: {data.PlaceholderPositions.Count} placeholders vs {data.DataOffsets.Count} data blocks", LogType.Error);
|
||||
return;
|
||||
}
|
||||
|
||||
for (int i = 0; i < data.PlaceholderPositions.Count; i++)
|
||||
{
|
||||
writer.Seek((int)data.PlaceholderPositions[i], SeekOrigin.Begin);
|
||||
writer.Write((int)data.DataOffsets[i]);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user