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utility classes updated.

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(BigEndian): read bigendian-packed integer packed into byte array.
(LittleEndian): added Pack methods.
This commit is contained in:
morkt 2015-04-14 10:30:23 +04:00
parent 0936c172cb
commit 9b4aa48e37
1 changed files with 48 additions and 0 deletions
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48
GameRes/Utility.cs
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@ -85,6 +85,19 @@ namespace GameRes.Utility
} }
} }
public static class BigEndian
{
public static uint ToUInt32 (byte[] value, int index)
{
return (uint)(value[index] << 24 | value[index+1] << 16 | value[index+2] << 8 | value[index+3]);
}
public static int ToInt32 (byte[] value, int index)
{
return (int)ToUInt32 (value, index);
}
}
public static class LittleEndian public static class LittleEndian
{ {
public static ushort ToUInt16 (byte[] value, int index) public static ushort ToUInt16 (byte[] value, int index)
@ -116,6 +129,41 @@ namespace GameRes.Utility
{ {
return (long)ToUInt64 (value, index); return (long)ToUInt64 (value, index);
} }
public static void Pack (ushort value, byte[] buf, int index)
{
buf[index] = (byte)(value);
buf[index+1] = (byte)(value >> 8);
}
public static void Pack (uint value, byte[] buf, int index)
{
buf[index] = (byte)(value);
buf[index+1] = (byte)(value >> 8);
buf[index+2] = (byte)(value >> 16);
buf[index+3] = (byte)(value >> 24);
}
public static void Pack (ulong value, byte[] buf, int index)
{
Pack ((uint)value, buf, index);
Pack ((uint)(value >> 32), buf, index+4);
}
public static void Pack (short value, byte[] buf, int index)
{
Pack ((ushort)value, buf, index);
}
public static void Pack (int value, byte[] buf, int index)
{
Pack ((uint)value, buf, index);
}
public static void Pack (long value, byte[] buf, int index)
{
Pack ((ulong)value, buf, index);
}
} }
public interface ICheckSum public interface ICheckSum