urldecode($values[0]),
'level' => intval($values[1])
);
}
fclose($file);
return $score;
}
function score_write($score)
{
$file = fopen('score.txt', 'w');
foreach($score as $entry) {
$player = urlencode($entry['player']);
$level = intval($entry['level']);
fwrite($file, "{$player},{$level}\n");
}
fclose($file);
}
// Do not use session cookies (we use URL parameters instead)
ini_set('session.use_cookies', 0);
ini_set('session.use_only_cookies', 0);
// Start session
session_name('user_id');
session_start();
if(!isset($_SESSION['mode'])) {
$_SESSION['mode'] = 'start';
}
if(!isset($_SESSION['colors']) || !is_array($_SESSION['colors']) || count($_SESSION['colors']) < 1) {
$_SESSION['colors'] = array(generate_color());
}
if(!isset($_SESSION['position'])) {
$_SESSION['position'] = 0;
}
// Process any chosen color
if(isset($_POST['action'])) {
$fragment = null;
switch($_POST['action']) {
case 'start':
// Switch to main menu
$_SESSION['mode'] = 'start';
break;
case 'play':
// Switch to in-game mode
$_SESSION['mode'] = 'play';
break;
case 'score':
// Switch to highscore mode
$_SESSION['mode'] = 'score';
break;
case 'play-select':
if($_SESSION['colors'][$_SESSION['position']] == $_POST['color']) {
// Move to next position in color list
$_SESSION['position']++;
// Check if the user has reached the end of the current list
if(count($_SESSION['colors']) <= $_SESSION['position']) {
// Add color to list of expected colors
$_SESSION['colors'][] = generate_color();
// Reset position
$_SESSION['position'] = 0;
}
} else {
// Copy current state for post-game processing
$_SESSION['old-colors'] = $_SESSION['colors'];
$_SESSION['old-position'] = $_SESSION['position'];
// Clear current game state
unset($_SESSION['colors']);
unset($_SESSION['position']);
// Switch to game over mode
$_SESSION['mode'] = 'over';
}
break;
case 'over-commit':
if(isset($_POST['player']) && $_SESSION['mode'] === 'over') {
$player = $_POST['player'];
$level = count($_SESSION['old-colors']);
// Load high score list
$score = score_read();
// Find player score in list
foreach($score as $index => $entry) {
if($entry['level'] <= $level) {
break;
}
}
// Insert player entry into list
array_splice($score, $index, 0,
array(
array(
'player' => $player,
'level' => $level
)
)
);
// Save new high score list
score_write($score);
// Make sure we jump to the player's position within the high score table
$fragment = "view-score-player-{$index}";
}
// Switch to highscore mode
$_SESSION['mode'] = 'score';
break;
}
// Redirect to self to convert POST into GET request
header('303 See Other HTTP/1.0');
header('Location: ' . $_SERVER['SCRIPT_NAME'] . '?' . SID . ($fragment ? "#{$fragment}" : ''));
die();
}
// Retieve next color
$color = end($_SESSION['colors']);
?>
Memory - The Game