// Snakes and Ladders

​

// What is the state?

const ROLL_STATE = 0; // Rolling the die

const MOVE_STATE = 1; // Moving to next spot

const SNADDER_STATE = 2; // Moving along a Snake or Ladder

let state = ROLL_STATE;

​

// Array of tiles

let tiles = [];

// One player

let player;

​

// Unecessary for playing the game

// these variables or for storing all the rolls over time

let rolls = [];

let index = 0;

let averageRolls = 0;

let avgP;

​

function setup() {

  createCanvas(400, 400);

  avgP = createP('');

​

  rolls[index] = 0;

​

  // Size of tile, columns and rows

  let resolution = 40;

  let cols = width / resolution;

  let rows = height / resolution;

​

  // Create all the tiles from bottom to top

  let x = 0;

  let y = (rows - 1) * resolution;

  let dir = 1;

  for (let i = 0; i < cols * rows; i++) {

    let tile = new Tile(x, y, resolution, i, i + 1);

    tiles.push(tile);

    x = x + (resolution * dir);

    // Move along a winding path up the rows

    if (x >= width || x <= -resolution) {

      dir *= -1;

      x += resolution * dir;

      y -= resolution;

    }

  }

​

  // Pick random Snakes

  for (let i = 0; i < 3; i++) {

    let index = floor(random(cols, tiles.length - 1));

    // -1 makes in a Snake (drop down a number of spots)

    tiles[index].snadder = -1 * floor(random(index % cols, index - 1));

  }

​

  // Pick random Ladders

  for (let i = 0; i < 3; i++) {

    let index = floor(random(0, tiles.length - cols));

    tiles[index].snadder = floor(random(cols - (index % cols), tiles.length - index - 1));

  }

​

  // A new player

  player = new Player();

}

​

function draw() {

  // frameRate(5);

  background(51);

​

  // Draw all the tiles, snakes, and ladders

  for (let tile of tiles) {

    tile.show();

  }

  for (let tile of tiles) {

    tile.showSnadders();

  }

​

  // Rolling the die

  if (state === ROLL_STATE) {

    player.rollDie();

    rolls[index]++;

    player.showPreview();

    state = MOVE_STATE;

    // Moving the player

  } else if (state === MOVE_STATE) {

    player.move();

    if (player.isSnadder()) {

      state = SNADDER_STATE;

    } else {

      state = ROLL_STATE;

    }

    // Moving along a Snake or Ladder

  } else if (state === SNADDER_STATE) {

    player.moveSnadder();

    state = ROLL_STATE;

  }

​

  // Draw the player

  player.show();

​

  // Is the game over?

  if (player.spot >= tiles.length - 1) {

    state = ROLL_STATE;

    player.reset();

    index++;

    rolls[index] = 0;

  }

​

  // Compute average rolls to complete game

  let sum = 0;

  for (let i = 0; i < rolls.length - 1; i++) {

    sum += rolls[i];

  }

  let avg = sum / (rolls.length - 1);

  if (avg) {

    avgP.html(avg);

  }

​

​

​

}