/**
* @param int $y
* @param int $x
* @param string $id
* @param \TicTacToeGame $currentGame
* @return bool
*/
protected function isWonStrategyForId($y, $x, $id, \TicTacToeGame $currentGame)
{
$currentMatrix = $currentGame->getCurrentMatrix();
//check straight line for x axis
$numberOfMyCells = 0;
for ($i = 0; $i < $currentGame->getYSize(); $i++) {
if (!is_null($currentMatrix[$i][$x]) && $currentMatrix[$i][$x] === $id) {
$numberOfMyCells++;
}
}
if ($numberOfMyCells == $currentGame->getYSize() - 1) {
return true;
}
//check straight line for y axis
$numberOfMyCells = 0;
for ($i = 0; $i < $currentGame->getXSize(); $i++) {
if (!is_null($currentMatrix[$y][$i]) && $currentMatrix[$y][$i] === $id) {
$numberOfMyCells++;
}
}
if ($numberOfMyCells == $currentGame->getYSize() - 1) {
return true;
}
$numberOfMyCells = 0;
//check the diagonals
//This algorithm is applicable for 3x3 matrix
//@Todo change the algorithm for any matrix
//Diagonals could be build only for extreme points
if ($currentGame->getXSize() == 3) {
//No diagonals possible
if ($x != 0 && $x != $currentGame->getXSize() && $x != $y) {
if ($y != 0 && $y != $currentGame->getYSize()) {
return false;
}
}
for ($i = 1; $i < $currentGame->getXSize(); $i++) {
$dX = $x == 0 ? $x + $i : $x - $i;
$dY = $y == 0 ? $y + $i : $y - $i;
if (isset($currentMatrix[$dY][$dX]) && !is_null($currentMatrix[$dY][$dX]) && $currentMatrix[$dY][$dX] === $id) {
$numberOfMyCells++;
}
}
if ($numberOfMyCells == $currentGame->getYSize() - 1) {
return true;
}
}
return false;
}