Patch for libnbt issue #2

libnbt_25.patch

# HG changeset patch
# User schumann2k <schumann2k ]at[ googlemail [dot] com>
# Date 1302451499 -7200
# Node ID 8b9db3a4df0184c66c40c11b20a500a39391f802
# Parent  86ae6c959e53ec7ad6756d60fbe3e39d9b15da76
Added support for specifying the type of a NbtList (crucial for exporting .schematic files).

diff -r 86ae6c959e53 -r 8b9db3a4df01 LibNbt.Test/NbtFileTest.cs
--- a/LibNbt.Test/NbtFileTest.cs	Sat Sep 18 17:07:44 2010 -0500
+++ b/LibNbt.Test/NbtFileTest.cs	Sun Apr 10 18:04:59 2011 +0200
@@ -275,5 +275,30 @@
 
             FileAssert.AreEqual(testFileStream, nbtStream);
         }
+
+        [Test]
+        public void TestNbtListType()
+        {
+            var file = new NbtFile();
+            file.RootTag = new NbtCompound("ListTypeTest");
+
+            NbtTagType mytype = NbtTagType.TAG_Compound;
+
+            NbtList list = new NbtList("Entities", null, mytype);
+            file.RootTag.Tags.Add(list);
+
+            file.SaveFile("TestFiles/NbtListType.nbt");
+
+
+            NbtFile read = new NbtFile();
+            read.LoadFile("TestFiles/NbtListType.nbt");
+            Assert.NotNull(read);
+            Console.WriteLine(read.RootTag.ToString());
+
+            NbtList readlist = (NbtList)read.RootTag.Tags.ToArray()[0];
+            Assert.NotNull(readlist);
+
+            Assert.AreEqual(mytype, readlist.listType);
+        }
     }
 }
diff -r 86ae6c959e53 -r 8b9db3a4df01 LibNbt/Tags/NbtList.cs
--- a/LibNbt/Tags/NbtList.cs	Sat Sep 18 17:07:44 2010 -0500
+++ b/LibNbt/Tags/NbtList.cs	Sun Apr 10 18:04:59 2011 +0200
@@ -9,8 +9,10 @@
 {
     public class NbtList : NbtTag, INbtTagList
     {
-        public List<NbtTag> Tags { get; protected set; }
-        public NbtTagType Type { get; protected set; }
+        public List<NbtTag> Tags { get; protected set; }
+        public NbtTagType Type { get; protected set; }
+
+        public NbtTagType listType { get; protected set; }
 
         public NbtTag this[int tagIdx]
         {
@@ -19,11 +21,13 @@
         }
         
         public NbtList() : this("") { }
-        public NbtList(string tagName) : this(tagName, new NbtTag[] { }) { }
-        public NbtList(string tagName, IEnumerable<NbtTag> tags)
+        public NbtList(string tagName) : this(tagName, null) { }
+        public NbtList(string tagName, IEnumerable<NbtTag> tags) : this(tagName, null, NbtTagType.TAG_Unknown) { }
+        public NbtList(string tagName, IEnumerable<NbtTag> tags, NbtTagType type)
         {
             Name = tagName;
-            Tags = new List<NbtTag>();
+            Tags = new List<NbtTag>();
+            listType = type;
 
             if (tags != null)
             {
@@ -95,6 +99,11 @@
             }
 
             return (T) ((NbtTag) this);
+        }
+
+        public void SetListType(NbtTagType newtype)
+        {
+            this.listType = newtype;
         }
 
         #region Reading Tag
@@ -113,7 +122,8 @@
 
             var tagId = new NbtByte();
             tagId.ReadTag(readStream, false);
-            Type = (NbtTagType)tagId.Value;
+            Type = (NbtTagType)tagId.Value;
+            listType = Type;
 
             var length = new NbtInt();
             length.ReadTag(readStream, false);
@@ -198,7 +208,14 @@
             // to make sure all elements are that type.
             if (Tags.Count > 0)
             {
-                NbtTagType listType = Tags[0].GetTagType();
+                //NbtTagType listType = Tags[0].GetTagType();
+                if (listType <= 0x00)
+                {
+                    listType = Tags[0].GetTagType();
+                    if (listType == 0x0)
+                        listType = NbtTagType.TAG_Unknown;
+                }
+
                 foreach(NbtTag tag in Tags)
                 {
                     if (tag.GetTagType() != listType)
@@ -206,8 +223,8 @@
                         throw new Exception("All list items must be the same tag type.");
                     }
                 }
-                Type = listType;
-            }
+            }
+            Type = listType;
 
             var tagType = new NbtByte("", (byte)Type);
             tagType.WriteData(writeStream);
@@ -235,7 +252,7 @@
             {
                 sb.AppendFormat("(\"{0}\")", Name);
             }
-            sb.AppendFormat(": {0} entries\n", Tags.Count);
+            sb.AppendFormat(": {0} entries of type {1}\n", Tags.Count, listType);
 
             sb.Append("{\n");
             foreach (NbtTag tag in Tags)