<?php

require_once (dirname(__FILE__) . "/config.inc.php");
require_once (dirname(__FILE__) . "/Element.php");
require_once (dirname(__FILE__) . "/fetch.php");

// Check if char is a whitespace character.
function char_is_white_space($char)
{
   if ($char == " " || $char == "\t" || $char == "\n")
   {
      return True;
   }
   return False;
}

// Move the file pointer along until it finds a non-whitespace character.  If
// the user wants to the next non-whitespace character, first move the file
// pointer one step.
function skip_white_space($fp, &$char, $next=False)
{
   if ($next == True || char_is_white_space($char) == True)
   {
      while (char_is_white_space($char = fgetc($fp)) == True) {}
   }
}

// Move the file pointer along until it finds the desired character.  If the
// user wants the next instance of the character, first move the pointer one
// step away from its current position.
function move_to_char($fp, &$char, $sought, $next=False)
{
   if ($next == True || $char != $sought)
   {
      while (($char = fgetc($fp)) != $sought && !feof($fp)) {}
   }
}

// Skip any initial white space.  Read and store characters until white space or
// a bracket is reached.
function parse_name_or_id($fp, &$char, &$data=NULL)
{
   skip_white_space($fp, $char);
   while (
      !char_is_white_space($char) && $char != OPEN_ELEMENT_CHAR &&
      $char != CLOSE_ELEMENT_CHAR && !feof($fp))
   {
      $data .= $char;
      $char = fgetc($fp);
   }
}

// Create a new element & store it as the first child of the current element or
// the next child of a parent element.
function build_new_element($fp, &$char, &$element, $ii)
{
   $new = new Element();
   if ($ii == 0)
   {
      $element->data = $new;
   }
   else
   {
      $element->next = $new;
   }
   parse_element($fp, $new, $char);
   $element = $new;
}

// Read the last component of an element.  If there is a bracket in the data,
// treat it as a new element, and add its contents to the current element.  If
// not, treat the data as a string, and store it.
function parse_data($fp, &$char, $element)
{
   skip_white_space($fp, $char);
   while ($char != CLOSE_ELEMENT_CHAR && !feof($fp))
   {
      for ($ii = 0; $char == OPEN_ELEMENT_CHAR; $ii++)
      {
         build_new_element($fp, $char, $element, $ii);
         $char = fgetc($fp);
         skip_white_space($fp, $char);
         $flag = True;
      }

      if ($flag == True) break;

      $element->data .= $char;
      $char = fgetc($fp);
   }
}

// Decide which component is being parsed and dispatch to the appropriate
// parsing function.
function parse_component($fp, $element, &$char, $component)
{
   switch ($component)
   {
      case NAME_COMPONENT:
         parse_name_or_id($fp, &$char, $element->name);
         break;
      case ID_COMPONENT:
         parse_name_or_id($fp, &$char, $element->id);
         break;
      case DATA_COMPONENT:
         parse_data($fp, &$char, $element);
         break;
   }
}

// Ensure we've found an element by moving to the first open bracket.  Parse the
// contents within the brackets (one or more elements).
function parse_element($fp, $element, &$char=NULL)
{
   move_to_char($fp, $char, OPEN_ELEMENT_CHAR);
   $char = fgetc($fp);
   for ($ii = 0; $ii < COMPONENT_COUNT; $ii++)
   {
      parse_component($fp, $element, $char, $ii);
   }
}

// Parse a file or subset of a file, creating a tree of elements.
function run_parse($file_name, $id=NULL)
{
   if (!file_exists($file_name)) return;

   $elements = fetch_elements($file_name, $id);
   $elements = ($id) ? array($elements) : $elements;
   foreach ($elements as $element)
   {
      $message .= $element->convert_to_tabbed_string() . "\n";
      $count += $element->count();
      $depth = max($element->measure_depth(), $depth);
   }
   $message .= "DEPTH: $depth\n";
   $message .= "TOTAL: $count\n";

   return $message;
}
<?php

require_once (dirname(__FILE__) . "/Element.php");
require_once (dirname(__FILE__) . "/parse.php");

// Parse the name of an element without storing it.
function skip_name($fp, &$char)
{
   parse_name_or_id($fp, $char);
}

// Read the id of the element listed at the current position.
function read_element_id($fp, &$char)
{
   skip_name($fp, $char);
   parse_name_or_id($fp, $char, $id);

   return $id;
}

// Move file pointer to element with requested ID.  After finding the ID, move
// the file pointer backward past the element name and open bracket.
function move_to_element_by_id($fp, &$char=NULL, $id)
{
   while (!feof($fp))
   {
      move_to_char($fp, $char, OPEN_ELEMENT_CHAR);
      $position = ftell($fp);
      $saved_char = $char;
      $char = fgetc($fp);
      if (read_element_id($fp, $char) == $id) break;
   }

   if (feof($fp)) return;

   fseek($fp, $position);
   $char = $saved_char;
}

// Find and return the element identified by the requested ID.
function fetch_element_by_id($file_name, $id)
{
   $fp = fopen($file_name, 'r');
   move_to_element_by_id($fp, $char, $id);
   $element = new Element();
   parse_element($fp, $element, $char);

   return $element;
}

// Return an array of all elements in a file.
function fetch_elements_by_file($file_name)
{
   $fp = fopen($file_name, 'r');

   skip_white_space($fp, $char, True);
   while (!feof($fp))
   {
      $elements[] = new Element();
      parse_element($fp, $elements[count($elements)-1], $char);
      $char = fgetc($fp);
      skip_white_space($fp, $char);
   }

   return $elements;
}

// Dispatch to appropriate function depending upon whether single or
// multiple elements are being requested.
function fetch_elements($file_name, $id=NULL)
{
   if (file_exists($file_name))
   {
      if ($id == NULL)
      {
         $elements = fetch_elements_by_file($file_name);
      }
      else
      {
         $elements = fetch_element_by_id($file_name, $id);
      }
   }
   
   return $elements;
}
54.91.121.255
54.91.121.255
54.91.121.255
 
May 17, 2018

Line Wobbler Advance is a demake of Line Wobbler for Game Boy Advance that started as a demo for Synchrony. It contains remakes of the original Line Wobbler levels and adds a challenging advance mode with levels made by various designers.


f1. Wobble at home or on-the-go with Line Wobbler Advance

This project was originally meant to be a port of Line Wobbler and kind of a joke (demaking a game made for even lower level hardware), but once the original levels were complete, a few elements were added, including a timer, different line styles and new core mechanics, such as reactive A.I.


f2. Notes on Line Wobbler

I reverse engineered the game by mapping the LED strip on paper and taking notes on each level. Many elements of the game are perfectly translated, such as enemy and lava positions and speeds and the sizes of the streams. The boss spawns enemies at precisely the same rate in both versions. Thanks in part to this effort, Line Wobbler Advance was awarded first prize in the Wild category at Synchrony.


f3. First prize at Synchrony

Advance mode is a series of levels by different designers implementing their visions of the Line Wobbler universe. This is the part of the game that got the most attention. It turned into a twitchy gauntlet filled with variations on the core mechanics, cinematic interludes and new elements, such as enemies that react to the character's movements. Most of the levels are much harder than the originals and require a lot of retries.

Thanks Robin Baumgarten for giving permission to make custom levels and share this project, and thanks to the advance mode designers Prashast Thapan, Charles Huang, John Rhee, Lillyan Ling, GJ Lee, Emily Koonce, Yuxin Gao, Brian Chung, Paloma Dawkins, Gus Boehling, Dennis Carr, Shuichi Aizawa, Blake Andrews and mushbuh!

DOWNLOAD ROM
You will need an emulator to play. Try Mednafen (Windows/Linux) or Boycott Advance (OS X)


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