davidbau.com

Tutorial: Maze Maker

The tutorial maze-maker.html (view source) is an introduction to functions.

It breaks down the work for drawing a random maze into five functions:

• fillsquares sets up a global array with a grid of SVG squares.
• setcolor sets the color of a single square at position (x, y).
• getcolor returns the color of a single square at position (x, y).
• shuffled returns a shuffled copy of an array.
• makemaze draws a random maze in the grid using recursion.

The program is begging to be extended by adding a maze solver.

Maze-making and maze-solving is a good excuse for explaining recursion. Any ideas for a gentler (but interesting) introduction to functions?

Posted by David at April 12, 2010 03:01 AM