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/*
* The Jacciata automaton, expressed in ALPACA.
* Inspired by Jaccia.
* April 11 2009, Chris Pressey, Cat's Eye Technologies.
* Updated to ALPACA 1.0 on March 20, 2013.
* Changed appearance of Slime from "%" to ":" April 6, 2013.
*/
neighbourhood VonNeumann
(^ v < >);
class Starter;
class Sustainer;
class Sassy;
class Solution;
state Space " ";
state Wall "#"; /* purely decorative */
/*
* Slime stays alive so long as there is sustenance (food, or more slime, or the
* head of an exploratory shoot) on at least two sides. Slime turns into an
* exploratory head if there is adjacent starter material.
*/
state Slime ":"
is Sustainer
to Space when (not 2 in VonNeumann is Sustainer)
/* this part lets conflicts be resolved */
or 2 in VonNeumann Head,
to Head when 1 in VonNeumann is Starter;
state Head "-"
is Starter
is Sustainer
is Sassy
to Body;
/*
* Body does not provide sustenance for slime.
* Body becomes solved cells when adjacent to a solution.
* Body stays alive so long as there is sassy on at least two sides;
* sassy is head, more body, or food, or a solved cell.
*/
state Body "?"
is Starter
is Sassy
to Solved when 1 in VonNeumann is Solution,
to Space when not 2 in VonNeumann is Sassy;
/*
* Solved cells survive on the same rules as body cells.
*/
state Solved "@"
is Sassy
is Solution
to Space when not 2 in VonNeumann is Sassy;
state Start "S"
is Starter
is Sustainer
is Sassy;
state Finish "F"
is Sustainer
is Sassy
is Solution.