From a410dd36022b986917558b51791174d78375efdc Mon Sep 17 00:00:00 2001
From: melchior <melchior@users.osdn.me>
Date: Fri, 21 May 2021 21:18:32 -0400
Subject: [PATCH] Added Single Shard metadata dumper

---
 ShardProcessor/Program.cs            | 48 ++++++++++++++++++++++++++++++++++++
 ShardProcessor/ShardProcessor.csproj |  2 +-
 2 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/ShardProcessor/Program.cs b/ShardProcessor/Program.cs
index 982ba6d..800712d 100644
--- a/ShardProcessor/Program.cs
+++ b/ShardProcessor/Program.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics;
 using System.IO;
 using System.Text.RegularExpressions;
 
@@ -58,6 +59,10 @@ namespace ShardProcessor
 				Scan_PointsData( );			
 			break;
 
+			case @"--oneshard":
+				Scan_OneShard( );
+			break;
+
 		default:
 			Console.WriteLine("Unrecognized Command: {0}", command);
 			break;
@@ -250,5 +255,48 @@ namespace ShardProcessor
 		Console.WriteLine("Scanned {0} files, {1} errors, {2} FLAT entries", count, errors, flat);
 		}
 
+		private static void Scan_OneShard( )
+		{
+		//--oneshard ~/ApplicationData/vintagestory/Maps/World_1316328588/Chunks/9363_9379.png
+		var oneChunkFile = new FileInfo(mapPath);
+		if (oneChunkFile.Exists) {
+
+
+		try {
+		using (var fileStream = oneChunkFile.OpenRead( )) {
+
+		PngReader pngRead = new PngReader(fileStream);
+		pngRead.ReadSkippingAllRows( );
+
+		//Parse PNG chunks for METADATA in shard
+		PngMetadataChunk metadataFromPng = pngRead.GetChunksList( ).GetById1(PngMetadataChunk.ID) as PngMetadataChunk;
+		ColumnMeta columnData = metadataFromPng.ChunkMetadata;
+		var metadata = pngRead.GetMetadata( );
+		var pngWriteTime = metadata.GetTime( );
+		var chunkX = metadata.GetTxtForKey(@"Chunk_X");
+		var chunkY = metadata.GetTxtForKey(@"Chunk_Y");
+		var pixelSize = metadata.GetTxtForKey(@"PxSz");
+		var gameDate = metadata.GetTxtForKey(@"GameDY");
+		var dateBlob = pngWriteTime.GetYMDHMS( );
+		/*
+	 	return new int[] {
+		this.year,
+		this.mon,
+		this.day,
+		this.hour,
+		this.min,
+		this.sec
+		*/
+
+		Console.WriteLine($"PNG-Timestamp:  Y{dateBlob[0] - 456960} M{dateBlob[1]} D{dateBlob[2]} H{dateBlob[3]} M {dateBlob[4]} S{dateBlob[5]} Chunk: X {chunkX} Y {chunkY} PixelSize:{pixelSize} Game-Date: {gameDate}");
+
+		pngRead.End( );
+		}
+		} catch (Exception darn) {
+		Debug.Write("Oops! File causes: {0}", darn.ToString( ));
+		}
+
+		}
+		}
 	}
 }
diff --git a/ShardProcessor/ShardProcessor.csproj b/ShardProcessor/ShardProcessor.csproj
index 11a7a93..03c8b6f 100644
--- a/ShardProcessor/ShardProcessor.csproj
+++ b/ShardProcessor/ShardProcessor.csproj
@@ -18,7 +18,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <ExternalConsole>true</ExternalConsole>
-    <Commandlineparameters>--shards ~/ApplicationData/vintagestory/Maps/World_19781215</Commandlineparameters>
+    <Commandlineparameters></Commandlineparameters>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <Optimize>true</Optimize>
-- 
2.11.0