using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace GetCardData
{
  public partial class BitConverter
  {
    public static string ToString(byte[] raw, int offset, int length)
    {
      string ret = String.Empty;

      for (int i = 0; i < length; i++)
        ret += (char)raw[offset + i];

      return ret;
    }

    public static short ToBEShort16(byte[] raw, int offset)
    {
      short value = (short)(((raw[offset + 0] << 8) & 0xFF00) | raw[offset + 1]);

      return value;
    }

    public static short ToLEShort16(byte[] raw, int offset)
    {
      short value = (short)((short)raw[offset + 0] | (short)(raw[offset + 1] * 0x100));

      return value;
    }

    public static ushort ToLEUShort16(byte[] raw, int offset)
    {
      ushort value = (ushort)((ushort)raw[offset + 0] | (ushort)(raw[offset + 1] * 0x100));

      return value;
    }

    public static uint ToLEUInt32(byte[] raw, int offset)
    {
      uint value = (uint)((uint)raw[offset + 0] |
        (uint)((raw[offset + 1] << 8) & 0xFF00)) |
        (uint)((raw[offset + 2] << 16 & 0xFF00)) |
        (uint)((raw[offset + 3] << 24 & 0xFF0000));

      return value;
    }
  }
}