public static function nameConstant(SpritePackageInterface $package, SpriteImage $sprite)
{
$converter = $package->getConstantsConverter();
if (!empty($converter)) {
if (!is_callable($converter, true)) {
throw new RuntimeException('Variable of type `%s` is not callable', get_type($converter));
}
$params = [$package, $sprite];
$name = call_user_func_array($converter, $params);
} else {
$name = $sprite->name;
}
// Last resort replacements
$name = preg_replace('~^[0-9]+~', '', $name);
return str_replace('-', '_', $name);
}
