I am including my code that I have already written, I just cannot figure out what to write in the boolean function winner$()$ in order for my game to announce that it is over and show number of moves.

Game::Game$()\{$

numMoves $=0$;

int num $=1$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_273995"></mtext><mn\; id="EditorElement\_273996">3</mn>$; $++$i$)\{$

for $($int j $=0$; j $<mtext\; id="EditorElement\_274033"></mtext><mn\; id="EditorElement\_274034">3</mn>$; $++$j$)\{$

gameBoard$[$i$][$j$]=$ num$++$;

$\}$

$\}$

$\}$

void Game::displayGame$()\{$

for $($int i $=0$; i $<mtext\; id="EditorElement\_274150"></mtext><mn\; id="EditorElement\_274151">3</mn>$; $++$i$)\{$

for $($int j $=0$; j $<mtext\; id="EditorElement\_274188"></mtext><mn\; id="EditorElement\_274189">3</mn>$; $++$j$)\{$

cout $$ gameBoard$[$i$][$j;

$\}$

cout $$ endl;

$\}$

$\}$

bool Game::winner$()\{$

for $($int i $=0$; i $<mtext\; id="EditorElement\_274329"></mtext><mn\; id="EditorElement\_274330">3</mn>$; $++$i$)\{$

for $($int j $=0$; j $<mtext\; id="EditorElement\_274367"></mtext><mn\; id="EditorElement\_274368">3</mn>$; $++$j$)\{$

if $($gameBoard$[$i$][$j$]!=15)\{$

return false;

$\}$

$\}$

$\}$

$\}$

void Game::swapPositions$($int num$1,$ int num$2)\{$

int row$1,$ row$2$;

int col$1,$ col$2$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_274592"></mtext><mn\; id="EditorElement\_274593">3</mn>$; $++$i$)\{$

for $($int j $=0$; j $<mtext\; id="EditorElement\_274630"></mtext><mn\; id="EditorElement\_274631">3</mn>$; $++$j$)\{$

if $($gameBoard$[$i$][$j$]==$ num$1)\{$

row$1=$ i;

col$1=$ j;

$\}$

if $($gameBoard$[$i$][$j$]==$ num$2)\{$

row$2=$ i;

col$2=$ j;

$\}$

$\}$

$\}$

int storeNum $=$ gameBoard$[$row$1][$col$1]$;

gameBoard$[$row$1][$col$1]=$ gameBoard$[$row$2][$col$2]$;

gameBoard$[$row$2][$col$2]=$ storeNum;

displayGame$()$;

cout $$ endl;

numMoves$++$;

$\}$

int Game::getMoves$()\{$

return numMoves;

$\}$

void Game::addRows$()\{$

int sum $=0$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_275175"></mtext><mn\; id="EditorElement\_275176">3</mn>$; $++$i$)\{$

for $($int j $=0$; j $<mtext\; id="EditorElement\_275213"></mtext><mn\; id="EditorElement\_275214">3</mn>$; $++$j$)\{$

sum $+=$ gameBoard$[$i$][$j$]$;

$\}$

cout $$ "Row $"$ i: $"$ sum $$ endl;

sum $=0$;

$\}$

$\}$

void Game::addColumns$()\{$

int sum $=0$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_275417"></mtext><mn\; id="EditorElement\_275418">3</mn>$; $++$i$)\{$

for $($int j $=0$; j $<mtext\; id="EditorElement\_275455"></mtext><mn\; id="EditorElement\_275456">3</mn>$; $++$j$)\{$

sum $+=$ gameBoard$[$j$][$i$]$;

$\}$

cout $$ "Column $"$ i: $"$ sum $$ endl;

sum $=0$;

$\}$

$\}$

void Game::addDiagonals$()\{$

int sum$1=0$;

int sum$2=0$;

for $($int i $=0$; i $<mtext\; id="EditorElement\_275682"></mtext><mn\; id="EditorElement\_275683">3</mn>$; $++$i$)\{$

for $($int j $=0$; j $<mtext\; id="EditorElement\_275720"></mtext><mn\; id="EditorElement\_275721">3</mn>$; $++$j$)\{$

if $($i $==$ j$)\{$

sum$1+=$ gameBoard$[$i$][$j$]$;

$\}$

if $(($i $+$ j$)==(3-1))\{$

sum$2+=$ gameBoard$[$i$][$j$]$;

$\}$

$\}$

$\}$

cout $$ "Diagonal Left: $"$ sum$1$ endl;

cout

$$ "Diagonal Right: $"$ sum$2$ endl;

$\}$

int main$()$

$\{$

Game all$15$;

cout $$ "Let's Play All$15!"$ endl;

cout To win, swap numbers until each line equals $15!"$ endl;

cout $$ endl;

all$15.$displayGame$()$;

cout $$ endl;

while $(!$ all$15.$winner$())\{$

int num;

int swapNum;

cout $$ "Enter a digit to move: $"$; cin $>>$ num;

cout $$ "Enter a digit to swap with: $"$; cin $>>$ swapNum;

all$15.$swapPositions$($num$,$ swapNum$)$;

cout $$ "Board not complete!" $$ endl;

all$15.$addRows$()$;

all$15.$addColumns$()$;

all$15.$addDiagonals$()$;

$\}$

cout $$ "Board complete!" $$ endl;

cout $$ "Number of moves: $"$ all$15.$getMoves$()$;

return $0$;

$\}$

I need assistance with making the boolean function show that each line's sum is now equal to $15$ in order to end the program. Output should look like picture.