Provides classes which fill a simple maze using a variety of generating algorithms. These generators accept plug-in strategies for storage (LIFO or FIFO) and a plug-in geometry.

There are three filler algorithms.

• Simple fills the maze by generating a straight stretch and an intersection. It simply gives up when it finds an edge or a crossing hall. Mazes tend to be sparse.
• Kinked fills the maze by generating a short straight stretch that may be punctuated by non-intersection turns. It simply gives up when it finds an edge or a crossing hall. Mazes tend to be sparsely filled, but reasonably twisty.
• Retry is a variation that backs up when an edge or a crossing hall is found. Mazes tend to be well-packed.

The algorithm is parameterized with a branching factor. A 100% branching factor leads to very short sections between intersections. A 0% branching factor leads to a boring maze - more of a path.

A filler algorithm can also have a plug in storage mechanism.

• Depth-First uses a FIFO stack to finish a complete path before doing another path.
• Breadth-First uses a LIFO queue to expand each path end "fairly".