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This file is part of Logtalk <http://logtalk.org/>  

Logtalk is free software. You can redistribute it and/or modify it under
the terms of the FSF GNU General Public License 3  (plus some additional
terms per section 7).        Consult the `LICENSE.txt` file for details.
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This directory contains two versions, one prototype-based and the 
other one class-based, of a very simple geometric shapes hierarchy.

The aim of this example is to compare the pros and cons of using 
either prototypes or classes for defining object hierarchies.

- `ph`  
	prototype-based version
- `ch`  
	class-based version

Both versions define the following hierarchy of objects:

	shape
		polygon
			regular_polygon
				square
					q1
					q2
