Added some chunk/region creation support

NBToolkit/FilteredChunkManager.cs

@@ -189,6 +189,11 @@ namespace NBToolkit
             return _cm.GetChunkRef(cx, cz);
         }
 
+        public ChunkRef CreateChunk (int cx, int cz)
+        {
+            return _cm.CreateChunk(cx, cz);
+        }
+
         public bool ChunkExists (int cx, int cz)
         {
             return _cm.ChunkExists(cx, cz);

Substrate/SubstrateCS/Source/ChunkFileManager.cs

@@ -123,6 +123,19 @@ namespace Substrate
             }
         }
 
+        public ChunkRef CreateChunk (int cx, int cz)
+        {
+            DeleteChunk(cx, cz);
+            Chunk c = new Chunk(cx, cz);
+            c.Save(GetChunkOutStream(cx, cz));
+
+            ChunkRef cr = new ChunkRef(this, this, cx, cz);
+            ChunkKey k = new ChunkKey(cx, cz);
+            _cache[k] = new WeakReference(cr);
+
+            return cr;
+        }
+
         public bool ChunkExists (int cx, int cz)
         {
             return new ChunkFile(_mapPath, cx, cz).Exists();

Substrate/SubstrateCS/Source/ChunkInterface.cs

@@ -39,6 +39,7 @@ namespace Substrate
 
         Chunk GetChunk (int cx, int cz);
         ChunkRef GetChunkRef (int cx, int cz);
+        ChunkRef CreateChunk (int cx, int cz);
 
         bool ChunkExists (int cx, int cz);
 

Substrate/SubstrateCS/Source/ChunkManager.cs

@@ -85,6 +85,18 @@ namespace Substrate
             return r.ChunkExists(cx & REGION_XMASK, cz & REGION_ZMASK);
         }
 
+        public ChunkRef CreateChunk (int cx, int cz)
+        {
+            Region r = GetRegion(cx, cz);
+            if (r == null) {
+                int rx = cx >> REGION_XLOG;
+                int rz = cz >> REGION_ZLOG;
+                r = _regionMan.CreateRegion(rx, rz);
+            }
+
+            return r.CreateChunk(cx & REGION_XMASK, cz & REGION_ZMASK, this);
+        }
+
         public bool MarkChunkDirty (ChunkRef chunk)
         {
             Region r = GetRegion(chunk.X, chunk.Z);

Substrate/SubstrateCS/Source/Region.cs

@@ -213,6 +213,25 @@ namespace Substrate
             }
         }
 
+        public ChunkRef CreateChunk (int lcx, int lcz)
+        {
+            return CreateChunk(lcx, lcz, this);
+        }
+
+        public ChunkRef CreateChunk (int lcx, int lcz, IChunkCache cache)
+        {
+            DeleteChunk(lcx, lcz);
+
+            Chunk c = new Chunk(ChunkGlobalX(lcx), ChunkGlobalZ(lcz));
+            c.Save(GetChunkOutStream(lcx, lcz));
+
+            ChunkRef cr = new ChunkRef(this, cache, lcx, lcz);
+            ChunkKey k = new ChunkKey(lcx, lcz);
+            _cache[k] = new WeakReference(cr);
+
+            return cr;
+        }
+
 
         #region IChunkCollection Members
 

Substrate/SubstrateCS/Source/RegionFile.cs

@@ -71,7 +71,7 @@ namespace Substrate
         protected void ReadFile ()
         {
             // Get last udpate time
-            long newModified = 0;
+            long newModified = -1;
             try {
                 if (File.Exists(fileName)) {
                     newModified = Timestamp(File.GetLastWriteTime(fileName));

Substrate/SubstrateCS/Source/RegionManager.cs

@@ -5,7 +5,17 @@ using System.Collections;
 
 namespace Substrate
 {
-    public class RegionManager : IEnumerable<Region>
+    public interface IRegionContainer
+    {
+        bool RegionExists (int rx, int rz);
+
+        Region GetRegion (int rx, int rz);
+        Region CreateRegion (int rx, int rz);
+
+        bool DeleteRegion (int rx, int rz);
+    }
+
+    public class RegionManager : IRegionContainer, IEnumerable<Region>
     {
         protected string _regionPath;
 
@@ -35,6 +45,26 @@ namespace Substrate
             }
         }
 
+        public bool RegionExists (int rx, int rz)
+        {
+            Region r = GetRegion(rx, rz);
+            return r != null;
+        }
+
+        public Region CreateRegion (int rx, int rz)
+        {
+            Region r = GetRegion(rx, rz);
+            if (r == null) {
+                string fp = "r." + rx + "." + rz + ".mcr";
+                new RegionFile(Path.Combine(_regionPath, fp));
+
+                r = new Region(this, rx, rz);
+            }
+
+            return r;
+        }
+
+
         public Region GetRegion (string filename)
         {
             int rx, rz;
@@ -45,6 +75,7 @@ namespace Substrate
             return GetRegion(rx, rz);
         }
 
+
         public string GetRegionPath ()
         {
             return _regionPath;

Substrate/SubstrateCS/Source/World.cs

@@ -119,6 +119,11 @@ namespace Substrate
         private string _dim;
         private string _regionDir;
 
+        public RegionManager RegionManager
+        {
+            get { return _regionMan; }
+        }
+
         public BetaWorld (string path)
             : this(path, "region", "")
         {