package edu.stuy.goldfish;

import edu.stuy.goldfish.rules.*;

public class Goldfish {
    private static final String[] RULES = {"Conway", "Conway4", "Life Without Death", "Brian's Brain"};

    private Grid _grid;
    private Render _render;

    public Goldfish() {
        int width = 128;
        int height = 128;
        _grid = new Grid(width, height);
        _render = new Render(width, height, _grid, RULES);
    }

    /* Main method for running the simulator. */
    public void run() {
        setup(_render.rule);
        while (true) {
            if (_render.reset) {
                _render.acquireLock(0);
                setup(_render.rule);
                _render.releaseLock(0);
                _render.reset = false;
            }
            if (!_render.paused) {
                _render.acquireLock(0);
                doLogic(_render.rule);
                _render.releaseLock(0);
            }
            _render.setGrid(_grid);
            _render.run();
            _render.sleep();
        }
    }

    /* Advance the grid one step using the given algorithm. */
    private void doLogic(String rule) {
        if (rule.equals("Conway"))
            _grid = Conway.run(_grid);
        else if (rule.equals("Conway4"))
            _grid = Conway4.run(_grid);
        else if (rule.equals("Life Without Death"))
            _grid = LifeWithoutDeath.run(_grid);
        else if (rule.equals("Brian's Brain"))
            _grid = BriansBrain.run(_grid);
    }

    /* Return the max number of states a patch can be in for the given rule. */
    public static int getMaxStates(String rule) {
        if (rule.equals("Conway"))
            return Conway.states;
        else if (rule.equals("Conway4"))
            return Conway4.states;
        else if (rule.equals("Life Without Death"))
            return LifeWithoutDeath.states;
        else if (rule.equals("Brian's Brain"))
            return BriansBrain.states;
        return 2;
    }

    /* Generate a default shape for the grid based on the given rule. */
    private void setup(String rule) {
        if (rule.equals("Conway"))
            Conway.setup(_grid);
        else if (rule.equals("Conway4"))
            Conway4.setup(_grid);
        else if (rule.equals("Life Without Death"))
            LifeWithoutDeath.setup(_grid);
        else if (rule.equals("Brian's Brain"))
            BriansBrain.setup(_grid);
    }

    public static void main(String[] args) {
        Goldfish g = new Goldfish();
        g.run();
    }
}