More FDS stuff

1 files changed, 53 insertions, 0 deletions

diff --git a/FdsBlockFileData.cs b/FdsBlockFileData.cs
new file mode 100644
index 0000000..51345bd
--- /dev/null
+++ b/FdsBlockFileData.cs
@@ -0,0 +1,53 @@
+using System;

+using System.Collections.Generic;

+using System.IO;

+using System.Linq;

+using System.Runtime.InteropServices;

+using System.Text;

+using System.Threading.Tasks;

+

+namespace com.clusterrr.Famicom.Containers

+{

+    public class FdsBlockFileData : IFdsBlock

+    {

+        private byte blockType = 4;

+        /// <summary>

+        /// True if block type ID is valid

+        /// </summary>

+        public bool IsValid { get => blockType == 4; }

+

+        private byte[] data = new byte[0];

+        public IEnumerable<byte> Data

+        {

+            get => Array.AsReadOnly(data);

+            set => data = value.ToArray();

+        }

+

+        /// <summary>

+        /// Set by dumper. True when checksum is ok

+        /// </summary>

+        public bool CrcOk { get; set; } = true;

+

+        /// <summary>

+        /// Set by dumper. True when "end of head" flag was meet during dumping

+        /// </summary>

+        public bool EndOfHeadMeet { get; set; } = false;

+

+        public static FdsBlockFileData FromBytes(byte[] rawData, int position = 0, int size = -1)

+        {

+            var retobj = new FdsBlockFileData();

+            retobj.blockType = rawData[position];

+            retobj.data = new byte[size < 0 ? rawData.Length - position - 1 : size - 1];

+            Array.Copy(rawData, position + 1, retobj.data, 0, retobj.data.Length);

+            return retobj;

+        }

+

+        public byte[] ToBytes()

+        {

+            var result = new List<byte>();

+            result.Add(blockType);

+            result.AddRange(Data);

+            return result.ToArray();

+        }

+    }

+}