​

// For loading text

let lines;

​

// An array of buttons

let cols = 7;

let rows = 3;

var buttons = [];//new Array(cols * rows);

​

// Preload the grammar

function preload() {

  //gold image backgorund preload

  calendarimg = loadImage("background.jpg");

​

  lines = loadStrings("cfg_test.txt");

}

​

function setup() {

  textAlign(CENTER, CENTER);

  //create canvas

  let canv = createCanvas(1000, 600);

  canv.parent("canvhold");

​

  // A loop to evenly space out the buttons along the window

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

  buttons.push(new Button(700, 200, 50, 40));

​

  for (let x = 0; x < cols; x++) {

    for (let y = 0; y < rows; y++) {

      buttons.push(new Button(x * 115 + 128, y * 50 + 280, 50, 40));

    }

  }

​

  cfree = new ContextFree();

​

  // A button to generate a new sentence

  //let button = select('#generate');

  // button.mousePressed(generate);

​

  //A button to clear everything

  // let clearButton = select('#clearButton');      clearButton.position(500,20);

  // clearButton.mousePressed(clearAll);

​

  // Here, regex parses the grammar files and adds rules

​

  // Look through all the rules

  for (let i = 0; i < lines.length; i++) {

    // A regex to get rid of comments

    let line = lines[i].replace(/#.*$/, "").trim(); // Get rid if any comments

    // Match the rule syntax

    let match = /(\w+)\s*->\s*(.*)/.exec(line);

    // If we found a fule

    if (match) {

      // The rule is the first group

      let rule = match[1];

      // The expansions can found in group 2

      let expansions = match[2].split(/\s*\|\s*/);

      // For every expansion

      for (var j = 0; j < expansions.length; j++) {

        // Make the expansion an array and add the rule

        let tokens = expansions[j].split(/\s+/);

        cfree.addRule(rule, tokens);

      }

    }

  }

}

​

function draw() {

  image(calendarimg, 0, 0, 1000, 600);

  // Show all the buttons

​

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

    buttons[i].display();

  }

}

​

// Remove everything

function clearAll() {

  let elements = selectAll(".text");

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

    elements[i].remove();

  }

}

​

function generate() {

  // Get an expansion starting with 'S'

  let expansion = cfree.getExpansion("S");

​

  let par1 = createP("Today's Kindness:");

  par1.class("text");

  par1.size(200, 50);

  par1.position(200, 150);

​

  // Make a paragraph

  let par2 = createP(expansion);

  par2.class("text");

  par2.size(200, 50);

  par2.position(200, 200);

}

​

function mousePressed() {

  // When the mouse is pressed, we must check every single button

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

    buttons[i].click(mouseX, mouseY);

  }

}

​