Files with WWD extension (Wap World Document) are designed to store level data in games based on the WAP32 engine. Depending on the actual game in order to edit these files you’d use: Gruntz Level Editor (GLE) in the game Gruntz or Wap World in the case of the game Claw. Implementation-wise these editors don’t differ much, only GLE incorporates a few additional new features. For this very reason this article will be dedicated to WWD files produced by GLE, which are technically a functional superset of WWD files produced by the Wap World editor.

Below is the formal WWD file specification, taking into account all the subtle differences between Gruntz and Claw level editors.

A few basic definitions are required to get things started:

• plane – every level is comprised of planes. One of them is required to be marked as “main” – that’s where all the action takes place. Other planes are purely optional and are for decorational purposes only.
• tiles – every plane is a rectangular board comprised of tiles.
• tile properties – every tile in the main plane may have a different functionality. Tile properties describe how the tile interacts with other objects in its vicinity and what it’s responsible for.