Connect-Four Game in Scala - scala

Question

I have to make a connect-four game using scala. I have attached the code but everytime the game runs and gets to row 3 it just continues to change the second rows entry instead of going to the next row. Any help would be appreciated. I found this code on another thread on here and couldn't figure out how to get it to work:
// makes the board
val table = Array.fill(9,8)('-')
var i = 0;
while(i < 8){
table(8)(i) = (i+'0').toChar
i = i+1;
}
// prints starting board
def printBoard(table: Array[Array[Char]]) {
table.foreach( x => println(x.mkString(" ")))
}
//player 1 moves
def playerMove1(){
val move = readInt
var currentRow1 = 7
while (currentRow1 >= 0)
if (table(currentRow1)(move) != ('-')) {
currentRow1 = (currentRow1-1)
table(currentRow1)(move) = ('X')
return (player2)}
} else {
table(currentRow1)(move) = ('X')
return (player2)
}
}
//player 2 moves
def playerMove2(){
val move = readInt
var currentRow2 = 7
while (currentRow2 >= 0)
if (table(currentRow2)(move) != ('-')) {
currentRow2 = (currentRow2-1)
table(currentRow2)(move) = ('O')
return (player1)}
} else {
table(currentRow2)(move) = ('O')
return (player1)
}
}
//player 1
def player1(){
printBoard(table)
println("Player 1 it is your turn. Choose a column 0-7")
playerMove1()
}
//player 2
def player2(){
printBoard(table)
println("Player 2 it is your turn. Choose a column 0-7")
playerMove2()
}
for (turn <- 1 to 32){
player1
player2
}

Answer 1

I've tried to make your code readable and compiling and also tried to fix some logic.
However, I've never worked with Scala so this is just a first sketch where you might want to continue ...
Some functions can be merged and the currentRow needed a fix. See here:
object ConnectFour{
val table = Array.fill(9,8)('-')
val currentRow = Array.fill(8)(8)
def main(args: Array[String]) {
var i = 0;
while(i < 8) {
table(8)(i) = (i+'0').toChar
i = i+1;
}
player(1)
}
def printBoard(table: Array[Array[Char]]) {
table.foreach( x => println(x.mkString(" ")))
}
def player(playerNr : Int){
printBoard(table)
println("Player " + playerNr + " it is your turn. Choose a column 0-7")
var column = readAndVerifyInt
var nextUser = 1 : Int
var symbol = 'O' : Char
if(playerNr == 1) {
symbol = 'X'
nextUser = 2
}
var curR = currentRow(column)
while (curR >= 0) {
if (table(curR)(column) != ('-')) {
curR = curR-1
currentRow(column) = curR
}
table(curR)(column) = symbol
player(nextUser)
}
}
def readAndVerifyInt() : Int = {
var column = readInt
if (column >= 0 && column <= 7) {
return column
} else {
println(" > Please try again")
return readAndVerifyInt
}
}
}