/// <param name="value">string or null</param>
public static void WriteString(this NetworkWriter writer, string value)
{
// write 0 for null support, increment real size by 1
// (note: original HLAPI would write "" for null strings, but if a
// string is null on the server then it should also be null
// on the client)
if (value == null)
{
writer.WriteUInt16(0);
return;
}
// write string with same method as NetworkReader
// convert to byte[]
int size = encoding.GetBytes(value, 0, value.Length, stringBuffer, 0);
// check if within max size
if (size >= MaxStringLength)
{
throw new DataMisalignedException($"NetworkWriter.Write(string) too long: {size}. Limit: {MaxStringLength}");
}
// write size and bytes
writer.WriteUInt16(checked ((ushort)(size + 1)));
writer.WriteBytes(stringBuffer, 0, size);
}
// pack message before sending
// -> NetworkWriter passed as arg so that we can use .ToArraySegment
// and do an allocation free send before recycling it.
public static void Pack <T>(T message, NetworkWriter writer)
{
// if it is a value type, just use typeof(T) to avoid boxing
// this works because value types cannot be derived
// if it is a reference type (for example IMessageBase),
// ask the message for the real type
Type mstType = default(T) == null && message != null?message.GetType() : typeof(T);
int msgType = GetId(mstType);
writer.WriteUInt16((ushort)msgType);
writer.Write(message);
}
public static void WriteUInt16Extension(this NetworkWriter writer, ushort value)
{
writer.WriteUInt16(value);
}
public static void WriteChar(this NetworkWriter writer, char value) => writer.WriteUInt16(value);