static function load(Config $config)
{
$scenes = new ArrayCollection();
// Start with the entry scene
$stack = array();
$scene = $config['entry_scene'];
array_push($stack, $scene);
// Loop until our stack is empty
while (count($stack)) {
// Load a scene from the stack
$scenePath = array_pop($stack);
$data = Yaml::load($config['base_directory'] . '/' . $scenePath . '.yml');
// Create a scene from the data
$newScene = new Scene($scenePath, $data);
$scenes->set($scenePath, $newScene);
// If we have exit-scenes, add them to the stack so we can load them
foreach ($data['scene']['exit'] as $direction => $exitScene) {
$tmp['exit'][strtolower($direction)] = $exitScene;
// Only add to stack when we haven't already processed that scene
if (!$scenes->containsKey($exitScene)) {
array_push($stack, $exitScene);
}
}
}
return $scenes;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$this->output = $output;
$this->input = $input;
$dir = $input->getArgument('dir');
// Load main.yml
$file = $dir . "/main.yml";
$yaml = Yaml::load($file);
$scenes = array();
// Load all scenes
$stack = array();
$scene = $yaml['entry_scene'];
array_push($stack, $scene);
while (count($stack)) {
$scene = array_pop($stack);
$yaml = Yaml::load($dir . '/' . $scene . '.yml');
$scenes[$scene] = array('key' => $scene, 'title' => $yaml['scene']['title'], 'exit' => array('north' => false, 'east' => false, 'south' => false, 'west' => false));
foreach ($yaml['scene']['exit'] as $direction => $exit_scene) {
$scenes[$scene]['exit'][strtolower($direction)] = $exit_scene;
if (!array_key_exists($exit_scene, $scenes)) {
array_push($stack, $exit_scene);
}
}
}
// Validate links
foreach ($scenes as $scene) {
if (count($scene['exit']) == 0) {
throw new \Exception(sprintf("Scene '%s' does not have any exit"));
}
foreach ($scene['exit'] as $direction => $exit_scene) {
if ($exit_scene == false) {
continue;
}
switch ($direction) {
case 'north':
if ($scenes[$exit_scene]['exit']['south'] != $scene['key']) {
throw new \Exception(sprintf("Scene '%s' exit North does match scene '%s' exit South", $scene['key'], $exit_scene));
}
break;
case 'south':
if ($scenes[$exit_scene]['exit']['north'] != $scene['key']) {
throw new \Exception(sprintf("Scene '%s' exit South does match scene '%s' exit North", $scene['key'], $exit_scene));
}
break;
case 'east':
if ($scenes[$exit_scene]['exit']['west'] != $scene['key']) {
throw new \Exception(sprintf("Scene '%s' exit East does match scene '%s' exit West", $scene['key'], $exit_scene));
}
break;
case 'west':
if ($scenes[$exit_scene]['exit']['east'] != $scene['key']) {
throw new \Exception(sprintf("Scene '%s' exit West does match scene '%s' exit East", $scene['key'], $exit_scene));
}
break;
}
}
}
$scene = reset($scenes);
$stack = array();
array_push($stack, array($scene, 0, 0));
$tmp = array();
$tmp['title'] = $scene['title'];
$tmp['exit'] = "";
foreach ($scene['exit'] as $d => $e) {
if (!$e) {
continue;
}
$tmp['exit'] .= strtoupper($d[0]);
}
// Add initial scene
$a = array();
while (count($stack)) {
list($scene, $x, $y) = array_pop($stack);
if (!isset($a[$y])) {
$a[$y] = array();
}
if (isset($a[$y][$x])) {
continue;
}
$dirs = "";
foreach ($scene['exit'] as $dir => $exit) {
if ($exit === false) {
continue;
}
switch (strtoupper($dir[0])) {
case 'N':
$dirs .= "N";
array_push($stack, array($scenes[$exit], $x, $y - 1));
break;
case 'E':
$dirs .= "E";
array_push($stack, array($scenes[$exit], $x + 1, $y));
break;
case 'S':
$dirs .= "S";
array_push($stack, array($scenes[$exit], $x, $y + 1));
break;
case 'W':
$dirs .= "W";
array_push($stack, array($scenes[$exit], $x - 1, $y));
break;
}
}
$a[$y][$x] = array($scene['title'], $dirs);
}
foreach (array_keys($a) as $k) {
ksort($a[$k]);
}
ksort($a);
$max = max(array_map(function ($row) {
return count($row);
}, $a));
$min = min(array_map(function ($row) {
return array_keys($row)[0];
}, $a));
$max = $min + $max;
foreach (array_keys($a) as $k) {
for ($i = $min; $i != $max; $i++) {
if (!isset($a[$k][$i])) {
$a[$k][$i] = false;
}
}
ksort($a[$k]);
}
define('NODE_WIDTH', 30);
define('NODE_HEIGHT', 5);
define('EDGE_WIDTH', 4);
define('EDGE_HEIGHT', 2);
$rows = count($a) * (NODE_HEIGHT + EDGE_HEIGHT);
$columns = count($a[0]);
$buf = array();
for ($i = 0; $i != $rows; $i++) {
$buf[] = str_repeat(" ", (NODE_WIDTH + EDGE_WIDTH) * $columns);
}
$y = 0;
foreach ($a as $row) {
$x = 0;
foreach ($row as $column) {
if ($column) {
$this->print_node($buf, $x * (NODE_WIDTH + EDGE_WIDTH), $y * (NODE_HEIGHT + EDGE_HEIGHT), $column[0]);
for ($i = 0; $i != strlen($column[1]); $i++) {
$this->print_edge($buf, $x * (NODE_WIDTH + EDGE_WIDTH), $y * (NODE_HEIGHT + EDGE_HEIGHT), $column[1][$i]);
}
}
$x++;
}
$y++;
}
foreach ($buf as $line) {
$this->output->writeln("<comment>{$line}</comment>");
}
}
