Amiga Software Projects

A powerful and versatile dialect of the LOGO programming language. It is a very high level language, easy to use, and easy to learn. Yet it has some low level power as well. It uses the simplest subset of LOGO syntax, and is defined by the simplest rules. It includes all of the support for word and list processing, program code processing, local variables, global variables, free variables, recursion, tail recursion, ... that you expect from LOGO. Also includes support for demons, while loops, menus, screens, windows, window graphics, turtle graphics, reading and writing files, optional inputs for procedures, ARexx, ... Release 1.4.

Slicer is a program for creating fractal art based on mathematical functions, such as the Mandelbrot set, Julia sets, and related abstractions (chaotic dynamical systems). Features include; fast fixed or floating point arithmetic, many different functions (z²+c, z³-3a²z+b, sin(z) ...), many computation options (level sets, binary decomposition, epsilon cross, distance estimate), many coloring and rendering options, images may be recolored without recomputing, batch mode, focus, multi pass, zoom in, zoom out, pan, quick 2x zoom, and four dimensional navigation. The program is named "Slicer" because the pictures it makes can be thought of as cross sections or "slices" revealing the insides of solid (if imaginary) objects.

I wrote a set of programs that replace Slicer for making some fractals. Each has its own fractal creation section, and they all have similar image processing sections.

The Asylum Escape Game. Paranoids is a traditional board game for two to four players. Played by drawing cards, rolling dice and moving pieces around the board. Each player has six pieces four patients and two doctors. The object of the game is to get all of your patients out of the asylum.

Based on the original board game by Richard Anderson.

Celestial Motion Simulator. Gravity Well simulates the motion of up to twenty bodies in Newton's universe. The position, velocity and mass of each body may be entered with the mouse or by typing the numbers into the boxes in the data window and clicking the enter button. The view of the simulation may be scaled, rotated in three dimensions or repositioned using the buttons in the view control window.

Reverse Polish Scientific Calculator. A programmable reverse polish notation calculator. It supports real numbers, complex numbers, matrices, 3-D vectors, labeled variables, Numerical integration, Numerical solve.

A two dimensional Turing machine simulator. This creates colorful constantly changing pictures. Imagine a small bug crawling around on your computer display moving one pixel at a time. At each step it uses its internal state number and the color of the pixel its on as indexes into a set of tables to decide what color to change the pixel to, what direction to move, and what its new internal state should be.