// http://codingtra.in

// http://patreon.com/codingtrain

// Code for: https://youtu.be/8Z9FRiW2Jlc

​

var rules = {

  "S": [

    ["NP", "VP"],

    ["Interj", "NP", "VP"]

  ],

  "NP": [

    ["Det", "N"],

    ["Det", "N", "that", "VP"],

    ["Det", "Adj", "N"]

  ],

  "VP": [

    ["Vtrans", "NP"],

    ["Vintr"]

  ],

  "Interj": [

    ["oh"],

    ["my"],

    ["wow"],

    ["darn"]

  ],

  "Det": [

    ["this"],

    ["that"],

    ["the"]

  ],

  "N": [

    ["amoeba"],

    ["dichotomy"],

    ["seagull"],

    ["trombone"],

    ["overstaffed"],

    ["corsage"]

  ],

  "Adj": [

    ["bald"],

    ["smug"],

    ["important"],

    ["tame"],

    ["overstaffed"],

    ["corsage"]

  ],

  "Vtrans": [

    ["computes"],

    ["examines"],

    ["foregrounds"],

  ],

  "Vintr": [

    ["coughs"],

    ["daydreams"],

    ["whines"],

  ]

};

// var rules = {

//   "S": [

//     ["The", "N", "V"]

//   ],

//   "N": [

//     ["cat"],

//     ["dog"]

//   ],

//   "V": [

//     ["meows"],

//     ["barks"]

//   ]

// };

​

function expand(start, expansion) {

  if (rules[start]) {

    var pick = random(rules[start]);

    console.log(pick);

    for (var i = 0; i < pick.length; i++) {

      expand(pick[i], expansion);

    }

  } else {

    expansion.push(start);

  }

  return expansion.join(" ");

}

​

var button;

​

function setup() {

  noCanvas();

  button = createButton('generate');

  button.mousePressed(cfg);

}

​

function cfg() {

​

  var start = "S";

  var expansion = [];

  var result = expand(start, expansion);

  console.log(result);

  createP(result);

​

​

​

​

}