From c48eb018f5ae9798df998ef379433809478514a0 Mon Sep 17 00:00:00 2001
From: Jarrod Doyle <thejarroddoyle@gmail.com>
Date: Sat, 24 Aug 2024 13:37:21 +0100
Subject: [PATCH] Merge model related chunks from gam file

---
 project/code/TMV/Mission.cs | 43 ++++++++++++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 5 deletions(-)

diff --git a/project/code/TMV/Mission.cs b/project/code/TMV/Mission.cs
index 2202c95..52cd884 100644
--- a/project/code/TMV/Mission.cs
+++ b/project/code/TMV/Mission.cs
@@ -5,6 +5,7 @@ using KeepersCompound.TMV.UI;
 using RectpackSharp;
 using System;
 using System.Collections.Generic;
+using System.IO;
 
 namespace KeepersCompound.TMV;
 
@@ -95,13 +96,45 @@ public partial class Mission : Node3D
 		UseChunk<TxList>("TXLIST", LoadTextures);
 		UseChunk<WorldRep>("WREXT", BuildWrMeshes);
 		if (
-			_file.Chunks.TryGetValue("BRLIST", out var brList) &&
-			_file.Chunks.TryGetValue("P$ModelName", out var modelNames) &&
-			_file.Chunks.TryGetValue("L$MetaProp", out var metaPropLinks) &&
-			_file.Chunks.TryGetValue("LD$MetaProp", out var metaPropLinkData)
+			_file.Chunks.TryGetValue("BRLIST", out var brListRaw) &&
+			_file.Chunks.TryGetValue("P$ModelName", out var modelNamesRaw) &&
+			_file.Chunks.TryGetValue("L$MetaProp", out var metaPropLinksRaw) &&
+			_file.Chunks.TryGetValue("LD$MetaProp", out var metaPropLinkDataRaw)
 		)
 		{
-			PlaceObjects((BrList)brList, (PropertyModelName)modelNames, (LinkChunk)metaPropLinks, (LinkDataMetaProp)metaPropLinkData);
+			var brList = (BrList)brListRaw;
+			var modelNames = (PropertyModelName)modelNamesRaw;
+			var metaPropLinks = (LinkChunk)metaPropLinksRaw;
+			var metaPropLinkData = (LinkDataMetaProp)metaPropLinkDataRaw;
+
+			// TODO: Do this somewhere else lol
+			if (_file.Chunks.TryGetValue("GAM_FILE", out var gamFileChunk))
+			{
+				GD.Print("GAM_FILE detected");
+
+				var options = new EnumerationOptions { MatchCasing = MatchCasing.CaseInsensitive };
+				var name = ((GamFile)gamFileChunk).fileName;
+				GD.Print($"Searching for GAM: {FileName.GetBaseDir()}/{name}");
+				var paths = Directory.GetFiles(FileName.GetBaseDir(), name, options);
+				GD.Print($"Found paths: {paths.Length}");
+				if (!paths.IsEmpty())
+				{
+					GD.Print($"Attempting to load GAM at: {paths[0]}");
+					var gamFile = new DbFile(paths[0]);
+					if (gamFile.Chunks.TryGetValue("P$ModelName", out var gamChunk1) &&
+						gamFile.Chunks.TryGetValue("L$MetaProp", out var gamChunk2) &&
+						gamFile.Chunks.TryGetValue("LD$MetaProp", out var gamChunk3))
+					{
+						GD.Print($"Pre-Merged chunks: {modelNames.properties.Count} {metaPropLinks.links.Count} {metaPropLinkData.linkData.Count}");
+						modelNames.properties.AddRange(((PropertyModelName)gamChunk1).properties);
+						metaPropLinks.links.AddRange(((LinkChunk)gamChunk2).links);
+						metaPropLinkData.linkData.AddRange(((LinkDataMetaProp)gamChunk3).linkData);
+						GD.Print($"Post-Merged chunks: {modelNames.properties.Count} {metaPropLinks.links.Count} {metaPropLinkData.linkData.Count}");
+					}
+				}
+			}
+
+			PlaceObjects(brList, modelNames, metaPropLinks, metaPropLinkData);
 		}
 	}