lsystem.js

/**
 * L-System abstraction.
 */


class LSystem
{
    /**
     * Constructor.
     *
     * @constructor
     *
     * @param {string} axiom - L-system inital axiom
     * @param {Object} ruleset - L-system ruleset
     */
    constructor(axiom, ruleset)
    {
        // store components
        this.axiom = axiom;
        this.ruleset = ruleset;
        this.buffer = new StringBuffer()
        this.steps = 0;

        // initialize buffer
        this.buffer.insert(this.axiom);
    }


    /**
     * Exposes system current buffer state.
     *
     * @returns {string[]} - current buffer state
     */
    get state()
    {
        return this.buffer.state;
    }


    /**
     * Derives next construction according to my ruleset.
     */
    derive()
    {
        // derivate each token of construction
        for (let token of this.buffer.flush())
        {
            this.buffer.insert(this.ruleset[token]);
        }
    }
}