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package o1game.utils
import java.io.InputStream
/** Converts this string to an array of bytes (probably for transmission).
*
* @param str the string to convert
* @return an array of bytes representing the string in UTF8.
*/
def stringToByteArray(str: String): Array[Byte] =
str.toVector.map(_.toByte).toArray
/** Reads n characters from the given InputStream blockingly.
*
* @param input the InputStream to read from
* @param n the number of bytes to read
* @return The read result, or None in case of failure
*/
def getNCharsFromSocket(input: InputStream, n: Int): Option[String] =
val buffer: Array[Byte] = Array.ofDim(n)
var i = 0
var failed = false
while i < n && !failed do
val res = input.read(buffer, i, n - i)
if res < 0 then failed = true
i += res
// TODO: better error handling
if failed then None else Some(String(buffer))
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