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<?php declare(strict_types=1); |
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namespace Smr; |
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use SmrGame; |
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use SmrPlayer; |
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/** |
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* Collection of functions to help with Lotto processing. |
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*/ |
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class Lotto { |
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public const TICKET_COST = 1000000; // cost of 1 ticket |
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public const WIN_FRAC = 0.9; // fraction of ticket sales returned to winner |
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public static function checkForLottoWinner(int $gameID): void { |
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// No more lotto winners after the game has ended |
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if (SmrGame::getGame($gameID)->hasEnded()) { |
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return; |
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} |
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// we check for a lotto winner... |
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$db = Database::getInstance(); |
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$db->lockTable('player_has_ticket'); |
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$lottoInfo = self::getLottoInfo($gameID); |
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if ($lottoInfo['TimeRemaining'] > 0) { |
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// Drawing is not closed yet |
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$db->unlock(); |
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return; |
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} |
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//we need to pick a winner |
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$dbResult = $db->read('SELECT * FROM player_has_ticket WHERE game_id = ' . $db->escapeNumber($gameID) . ' AND time > 0 ORDER BY rand() LIMIT 1'); |
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$winner_id = $dbResult->record()->getInt('account_id'); |
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// Any unclaimed prizes get merged into this prize |
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$dbResult = $db->read('SELECT IFNULL(SUM(prize), 0) AS total_prize FROM player_has_ticket WHERE time = 0 AND game_id = ' . $db->escapeNumber($gameID)); |
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$lottoInfo['Prize'] += $dbResult->record()->getInt('total_prize'); |
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// Delete all tickets and re-insert the winning ticket |
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$db->write('DELETE FROM player_has_ticket WHERE game_id = ' . $db->escapeNumber($gameID)); |
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$db->insert('player_has_ticket', [ |
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'game_id' => $db->escapeNumber($gameID), |
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'account_id' => $db->escapeNumber($winner_id), |
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'time' => 0, |
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'prize' => $db->escapeNumber($lottoInfo['Prize']), |
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]); |
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$db->unlock(); |
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// create news msg |
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$winner = SmrPlayer::getPlayer($winner_id, $gameID); |
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$winner->increaseHOF($lottoInfo['Prize'], ['Bar', 'Lotto', 'Money', 'Winnings'], HOF_PUBLIC); |
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$winner->increaseHOF(1, ['Bar', 'Lotto', 'Results', 'Wins'], HOF_PUBLIC); |
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$news_message = $winner->getBBLink() . ' has won the lotto! The jackpot was ' . number_format($lottoInfo['Prize']) . '. ' . $winner->getBBLink() . ' can report to any bar to claim their prize before the next drawing!'; |
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// insert the news entry |
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$db->write('DELETE FROM news WHERE type = \'lotto\' AND game_id = ' . $db->escapeNumber($gameID)); |
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$db->insert('news', [ |
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'game_id' => $db->escapeNumber($gameID), |
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'time' => $db->escapeNumber(Epoch::time()), |
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'news_message' => $db->escapeString($news_message), |
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'type' => $db->escapeString('lotto'), |
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'dead_id' => $db->escapeNumber($winner->getAccountID()), |
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'dead_alliance' => $db->escapeNumber($winner->getAllianceID()), |
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]); |
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} |
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/** |
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* @return array<string, int> |
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*/ |
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public static function getLottoInfo(int $gameID): array { |
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$amount = self::TICKET_COST; // pot starts with 1 ticket value |
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$firstBuy = Epoch::time(); |
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$db = Database::getInstance(); |
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$dbResult = $db->read('SELECT count(*) as num, min(time) as time FROM player_has_ticket |
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WHERE game_id = ' . $db->escapeNumber($gameID) . ' AND time > 0'); |
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$dbRecord = $dbResult->record(); |
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if ($dbRecord->getInt('num') > 0) { |
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$amount += $dbRecord->getInt('num') * IFloor(self::TICKET_COST * self::WIN_FRAC); |
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$firstBuy = $dbRecord->getInt('time'); |
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} |
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//find the time remaining in this jackpot. (which is 2 days from the first purchased ticket) |
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return ['Prize' => $amount, 'TimeRemaining' => $firstBuy + TIME_LOTTO - Epoch::time()]; |
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} |
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} |
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smrealms /
smr
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