munch6

Usage

Overview

The munch program performs the munching squares hack. It picks square size, position, and gravity randomly. It also displays a creatively broken misimplementation of the classic algorithm.

The munching squares hack consists of drawing Y = X XOR T for a range of X and T over and over until all the possible combinations of X and T have come up. It was reportedly discovered by Jackson Wright in 1962 and took 5 instructions of PDP-6 code.

Options

munch accepts the following options:

--window

Draw on a newly-created window. This is the default.

--root

Draw on the root window.

--window-id number

Draw on the specified window.

--mono

If on a color display, pretend we're on a monochrome display.

--install

Install a private colormap for the window.

--visual visual

Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.

--delay usecs

The delay between steps of the animation, in microseconds. Default: 2500.

--xor

Use the XOR drawing function. This is the default.

--no-xor

Don't use the XOR drawing function.

--clear number

Number of squares to misdraw before clearing the display. Default: 65.

--simul number

Number of squares to misdraw simultaneously. Default: 5.

--classic

Draw classic munching squares only.

--mismunch

Draw "mismunch" only.

--random

Do one or the other.

--fps

Display the current frame rate and CPU load.

Environment

DISPLAY

to get the default host and display number.

XENVIRONMENT

to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

XSCREENSAVER_WINDOW

The window ID to use with --root.