src/games/Progression.php
<?php
namespace BrainGames\Progression;
use function BrainGames\Engine\playGame;
use const BrainGames\Engine\LOOPS_COUNT;
function progressionGame()
{
$gameDescription = "What number is missing in the progression?";
for ($i = 0; $i < LOOPS_COUNT; $i++) {
$progressionSize = 10;
$start = rand(1, 100);
$step = rand(2, 9);
$position = rand(0, $progressionSize - 1);
for ($index = 0; $index < $progressionSize; $index++) {
if ($position === $index) {
$progression[$index] = "..";
} else {
$nextNum = $start + $step * $index;
$progression[$index] = $nextNum;
}
}
$question = implode(" ", $progression);
$rightAnswer = $start + $step * $position;
$gameData[$i] = ['question' => $question, 'rightAnswer' => $rightAnswer];
}
playGame($gameDescription, $gameData);
}