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const GRID_SIZE = 20;\nexport const CELL_SIZE = 25; // in pixels\nexport const DIRECTIONS = {\n  ArrowLeft: {\n    code: 37,\n    movement: -1,\n    rotation: 180\n  },\n  ArrowUp: {\n    code: 38,\n    movement: -GRID_SIZE,\n    rotation: 270\n  },\n  ArrowRight: {\n    code: 39,\n    movement: 1,\n    rotation: 0\n  },\n  ArrowDown: {\n    code: 40,\n    movement: GRID_SIZE,\n    rotation: 90\n  }\n};\n\nexport const OBJECT_TYPE = {\n  BLANK: 'blank',\n  WALL: 'wall',\n  DOT: 'dot',\n  BLINKY: 'blinky',\n  PINKY: 'pinky',\n  INKY: 'inky',\n  CLYDE: 'clyde',\n  PILL: 'pill',\n  PACMAN: 'pacman',\n  GHOST: 'ghost',\n  SCARED: 'scared',\n  GHOSTLAIR: 'lair'\n};\n\n// Lookup array for classes\nexport const CLASS_LIST = [\n  OBJECT_TYPE.BLANK,\n  OBJECT_TYPE.WALL,\n  OBJECT_TYPE.DOT,\n  OBJECT_TYPE.BLINKY,\n  OBJECT_TYPE.PINKY,\n  OBJECT_TYPE.INKY,\n  OBJECT_TYPE.CLYDE,\n  OBJECT_TYPE.PILL,\n  OBJECT_TYPE.PACMAN,\n  OBJECT_TYPE.GHOSTLAIR\n];\n\nexport const LEVEL = [\n  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\n  1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1,\n  1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1,\n  1, 7, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 7, 1,\n  1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1,\n  1, 2, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1,\n  1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1,\n  1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1,\n  0, 0, 0, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 0, 0, 0,\n  0, 0, 0, 1, 2, 1, 2, 1, 9, 9, 9, 9, 1, 2, 1, 2, 1, 0, 0, 0,\n  1, 1, 1, 1, 2, 1, 2, 1, 9, 9, 9, 9, 1, 2, 1, 2, 1, 1, 1, 1,\n  1, 0, 0, 0, 2, 2, 2, 1, 9, 9, 9, 9, 1, 2, 2, 2, 0, 0, 0, 1,\n  1, 1, 1, 1, 2, 1, 2, 1, 9, 9, 9, 9, 1, 2, 1, 2, 1, 1, 1, 1,\n  0, 0, 0, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 0, 0, 0,\n  0, 0, 0, 1, 2, 1, 2, 0, 0, 0, 0, 0, 0, 2, 1, 2, 1, 0, 0, 0,\n  1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1,\n  1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1,\n  1, 2, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 2, 1,\n  1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1,\n  1, 7, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 7, 1,\n  1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1,\n  1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1,\n  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,\n];\n","function _arrayLikeToArray(arr, len) {\n  if (len == null || len > arr.length) len = arr.length;\n\n  for (var i = 0, arr2 = new Array(len); i < len; i++) {\n    arr2[i] = arr[i];\n  }\n\n  return arr2;\n}\n\nmodule.exports = _arrayLikeToArray;","var arrayLikeToArray = require(\"./arrayLikeToArray\");\n\nfunction _arrayWithoutHoles(arr) {\n  if (Array.isArray(arr)) return arrayLikeToArray(arr);\n}\n\nmodule.exports = _arrayWithoutHoles;","function _iterableToArray(iter) {\n  if (typeof Symbol !== \"undefined\" && Symbol.iterator in Object(iter)) return Array.from(iter);\n}\n\nmodule.exports = _iterableToArray;","var arrayLikeToArray = require(\"./arrayLikeToArray\");\n\nfunction _unsupportedIterableToArray(o, minLen) {\n  if (!o) return;\n  if (typeof o === \"string\") return arrayLikeToArray(o, minLen);\n  var n = Object.prototype.toString.call(o).slice(8, -1);\n  if (n === \"Object\" && o.constructor) n = o.constructor.name;\n  if (n === \"Map\" || n === \"Set\") return Array.from(o);\n  if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return arrayLikeToArray(o, minLen);\n}\n\nmodule.exports = _unsupportedIterableToArray;","function _nonIterableSpread() {\n  throw new TypeError(\"Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");\n}\n\nmodule.exports = _nonIterableSpread;","var arrayWithoutHoles = require(\"./arrayWithoutHoles\");\n\nvar iterableToArray = require(\"./iterableToArray\");\n\nvar unsupportedIterableToArray = require(\"./unsupportedIterableToArray\");\n\nvar nonIterableSpread = require(\"./nonIterableSpread\");\n\nfunction _toConsumableArray(arr) {\n  return arrayWithoutHoles(arr) || iterableToArray(arr) || unsupportedIterableToArray(arr) || nonIterableSpread();\n}\n\nmodule.exports = _toConsumableArray;","function _arrayWithHoles(arr) {\n  if (Array.isArray(arr)) return arr;\n}\n\nmodule.exports = _arrayWithHoles;","function _iterableToArrayLimit(arr, i) {\n  if (typeof Symbol === \"undefined\" || !(Symbol.iterator in Object(arr))) return;\n  var _arr = [];\n  var _n = true;\n  var _d = false;\n  var _e = undefined;\n\n  try {\n    for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {\n      _arr.push(_s.value);\n\n      if (i && _arr.length === i) break;\n    }\n  } catch (err) {\n    _d = true;\n    _e = err;\n  } finally {\n    try {\n      if (!_n && _i[\"return\"] != null) _i[\"return\"]();\n    } finally {\n      if (_d) throw _e;\n    }\n  }\n\n  return _arr;\n}\n\nmodule.exports = _iterableToArrayLimit;","function _nonIterableRest() {\n  throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");\n}\n\nmodule.exports = _nonIterableRest;","var arrayWithHoles = require(\"./arrayWithHoles\");\n\nvar iterableToArrayLimit = require(\"./iterableToArrayLimit\");\n\nvar unsupportedIterableToArray = require(\"./unsupportedIterableToArray\");\n\nvar nonIterableRest = require(\"./nonIterableRest\");\n\nfunction _slicedToArray(arr, i) {\n  return arrayWithHoles(arr) || iterableToArrayLimit(arr, i) || unsupportedIterableToArray(arr, i) || nonIterableRest();\n}\n\nmodule.exports = _slicedToArray;","function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}\n\nmodule.exports = _classCallCheck;","function _defineProperties(target, props) {\n  for (var i = 0; i < props.length; i++) {\n    var descriptor = props[i];\n    descriptor.enumerable = descriptor.enumerable || false;\n    descriptor.configurable = true;\n    if (\"value\" in descriptor) descriptor.writable = true;\n    Object.defineProperty(target, descriptor.key, descriptor);\n  }\n}\n\nfunction _createClass(Constructor, protoProps, staticProps) {\n  if (protoProps) _defineProperties(Constructor.prototype, protoProps);\n  if (staticProps) _defineProperties(Constructor, staticProps);\n  return Constructor;\n}\n\nmodule.exports = _createClass;","function _defineProperty(obj, key, value) {\n  if (key in obj) {\n    Object.defineProperty(obj, key, {\n      value: value,\n      enumerable: true,\n      configurable: true,\n      writable: true\n    });\n  } else {\n    obj[key] = value;\n  }\n\n  return obj;\n}\n\nmodule.exports = _defineProperty;","\nexport default class PacQueue {\n\n  constructor() {\n    this.pushStack = [];\n    this.pullStack = [];\n    this.size = 0;\n  }\n\n  empty() {\n    return this.size == 0;\n  }\n\n  push(value) {\n    this.pushStack.push(value);\n    this.size++;\n  }\n\n  front() {\n    if(this.pullStack.length > 0) {\n      const elem = this.pullStack[this.pullStack.length - 1];\n      return elem;\n    }\n    else if(this.pushStack.length > 0) {\n      return this.pushStack[0];\n    }\n    else {\n      console.err(\"Empty queue being front() \");\n      return null;\n    }\n  }\n\n  poll() {\n    if(this.pullStack.length > 0) {\n      this.size--;\n      const elem = this.pullStack[this.pullStack.length - 1];\n      this.pullStack.pop();\n      return elem;\n    }\n    else if(this.pushStack.length > 0) {\n      const pushStackLength = this.pushStack.length;\n      for(let i = pushStackLength; i--;) {\n        const elem = this.pushStack[i];\n        this.pushStack.pop();\n        this.pullStack.push(elem);\n      }\n      return this.poll();\n    }\n    else {\n      console.err(\"Empty queue being polled \");\n      return null;\n    }\n  }\n\n}\n\n// const q = new PacQueue();\n// q.push(3);\n// q.push(5);\n// q.push(4);\n// q.push(9);\n// q.push(26);\n\n// console.log(q.front());\n\n// q.poll();\n// q.poll();\n\n// console.log(q.front());\n\n// console.log(\"----\");\n\n// while(!q.empty()) {\n//   const elem = q.front();\n//   q.poll();\n//   console.log(elem);\n// }\n\n\n\n","export function hslToRgb(h, s, l) {\n  let r;\n  let g;\n  let b;\n\n  if (s == 0) {\n    r = g = b = l;\n  } else {\n    const hue2rgb = function hue2rgb(p, q, t) {\n      if (t < 0) t += 1;\n      if (t > 1) t -= 1;\n      if (t < 1 / 6) return p + (q - p) * 6 * t;\n      if (t < 1 / 2) return q;\n      if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;\n      return p;\n    };\n\n    const q = l < 0.5 ? l * (1 + s) : l + s - l * s;\n    const p = 2 * l - q;\n    r = hue2rgb(p, q, h + 1 / 3);\n    g = hue2rgb(p, q, h);\n    b = hue2rgb(p, q, h - 1 / 3);\n  }\n\n  return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];\n}\n","import { GRID_SIZE, CELL_SIZE, OBJECT_TYPE, CLASS_LIST } from './setup';\nimport PacQueue from './PacmanQueue';\nimport { hslToRgb } from './helper';\n\nexport default class GameBoard {\n\n  constructor(DOMGrid) {\n    this.dotCount = 0;\n    this.grid = [];\n    this.DOMGrid = DOMGrid;\n  }\n\n  createGrid(level) {\n    this.dotCount = 0;\n    this.grid = [];\n    this.DOMGrid.innerHTML = '';\n    this.DOMGrid.style.cssText = `\n      grid-template-columns: repeat(${GRID_SIZE}, ${CELL_SIZE}px);\n    `;\n\n    level.forEach(squareValue => {\n      const div = document.createElement('div');\n      div.classList.add('square', CLASS_LIST[squareValue]);\n      div.style.cssText = `\n        width: ${CELL_SIZE}px;\n        height: ${CELL_SIZE}px;\n      `;\n      if(OBJECT_TYPE.DOT == CLASS_LIST[squareValue]) {\n        this.dotCount++;\n        const [r, g, b] = hslToRgb(Math.random() * 3.6, 1, 0.5);\n        div.style.cssText += `\n          background: rgba(${Math.max(r / 255, r * 1.5)}, ${g}, ${b * 0.5}, 1) !important;\n        `;\n      }\n      this.DOMGrid.append(div);\n      this.grid.push(div);\n    });\n\n  }\n\n  addObject(pos, classes) {\n    this.grid[pos].classList.add(...classes);\n  }\n\n  removeObject(pos, classes) {\n    this.grid[pos].classList.remove(...classes);\n    /**\n     * we must remove the background property otherwise pacman will merge colors with\n     * the div the next time he is there in that grid!\n     */\n    for(let theClass of classes) {\n      if(theClass == OBJECT_TYPE.DOT) {\n        this.grid[pos].style.background = \"\";\n        break;\n      }\n    }\n  }\n\n  objectExists = (pos, object) => {\n    return this.grid[pos].classList.contains(object);\n  }\n\n  rotateDiv(pos, deg) {\n    this.grid[pos].style.transform = `rotate(${deg}deg)`;\n  }\n\n  moveCharacter(character) {\n    if(character.shouldMove()) {\n\n      const { nextMovePos, direction } =\n        character.getNextMove(this.objectExists.bind(this));\n\n      const { classesToRemove, classesToAdd } = character.makeMove();\n\n      if(character.rotation && character.nextMovePos !== character.pos) {\n        this.rotateDiv(nextMovePos, character.dir.rotation);\n        this.rotateDiv(character.pos, 0);\n      }\n\n      this.removeObject(character.pos, classesToRemove);\n      this.addObject(nextMovePos, classesToAdd);\n\n      character.setNewPos(nextMovePos, direction);\n    }\n  }\n\n\n  showGameStatus(gameWin) {\n    const div = document.createElement('div');\n    div.classList.add('game-status');\n    div.innerHTML = `\n      ${gameWin ? 'WIN !' : 'GAME OVER' }\n    `;\n    this.DOMGrid.append(div);\n  }\n\n  static createGameboard(DOMGrid, level) {\n    const board = new this(DOMGrid);\n    board.createGrid(level);\n    return board;\n  }\n\n};","import { OBJECT_TYPE, DIRECTIONS } from \"./setup\";\n\nexport default class Pacman {\n\n  constructor(pos, speed) {\n\n    this.pos = pos;\n    this.speed = speed;\n    this.dir = null;\n    this.timer = 0;\n    this.powerPill = false;\n    this.rotation = true; // we will rotate when we change direction\n\n  }\n\n  shouldMove() {\n\n    if(!this.dir) return false;\n\n    if(this.timer === this.speed) {\n      this.timer = 0;\n      return true;\n    }\n\n    this.timer++;\n  }\n\n  getNextMove(objectExists) {\n\n    let nextMovePos = this.pos + this.dir.movement;\n\n    if(\n      objectExists(nextMovePos, OBJECT_TYPE.WALL) ||\n      objectExists(nextMovePos, OBJECT_TYPE.GHOSTLAIR)\n    ) {\n      nextMovePos = this.pos;\n    }\n\n    return {\n      nextMovePos, direction: this.dir\n    }\n\n  }\n\n  makeMove() {\n    const classesToRemove = [OBJECT_TYPE.PACMAN];\n    const classesToAdd = [OBJECT_TYPE.PACMAN];\n    return  { classesToRemove, classesToAdd };\n  }\n\n  setNewPos(pos){\n    this.pos = pos;\n  }\n\n  handleKeyInput(e, objectExists) {\n\n    if(!(e.keyCode >= 37 && e.keyCode <= 40))\n      return;\n\n    const dir = DIRECTIONS[e.key];\n    const nextMovePos = this.pos + dir.movement;\n\n    if(objectExists(nextMovePos, OBJECT_TYPE.WALL)\n        || objectExists(nextMovePos, OBJECT_TYPE.GHOSTLAIR)\n     )\n      return;\n\n    this.dir = dir;\n\n  }\n\n}","import { DIRECTIONS, OBJECT_TYPE } from './setup';\n\nexport default class Ghost {\n\n  constructor(speed = 5, startPos, movement, name) {\n\n    this.name = name;\n    this.movement = movement;\n    this.startPos = startPos;\n    this.pos = startPos;\n    this.speed = speed;\n    this.timer = 0;\n    this.isScared = false;\n    this.rotation = false;\n    this.dir = DIRECTIONS.ArrowRight;\n\n  }\n\n  shouldMove() {\n    if(this.timer === this.speed) {\n      this.timer = 0;\n      return true;\n    }\n    this.timer++;\n  }\n\n  getNextMove(objectExist) {\n    // Call move algoritm here\n    const { nextMovePos, direction } = this.movement(\n      this.pos,\n      this.dir,\n      objectExist\n    );\n    return { nextMovePos, direction };\n  }\n\n  makeMove() {\n\n    const classesToRemove = [\n      OBJECT_TYPE.GHOST,\n      OBJECT_TYPE.SCARED,\n      this.name\n    ];\n\n    let classesToAdd = [\n      OBJECT_TYPE.GHOST,\n      this.name\n    ];\n\n    if(this.isScared)\n      classesToAdd = [...classesToAdd, OBJECT_TYPE.SCARED];\n\n    return {\n      classesToAdd,\n      classesToRemove\n    }\n\n  }\n\n  setNewPos(nextPos, dir) {\n    this.dir = dir;\n    this.pos = nextPos;\n  }\n\n}\n\n\n","import { DIRECTIONS, OBJECT_TYPE, GRID_SIZE } from './setup';\nimport PacQueue from './PacmanQueue';\n\n// Primitive random movement.\nexport function randomMovement(position, direction, objectExist) {\n  let dir = direction;\n  let nextMovePos = position + dir.movement;\n  // Create an array from the diretions objects keys\n  const keys = Object.keys(DIRECTIONS);\n\n  while (\n    objectExist(nextMovePos, OBJECT_TYPE.WALL) ||\n    objectExist(nextMovePos, OBJECT_TYPE.GHOST)\n  ) {\n    // Get a random key from that array\n    const key = keys[Math.floor(Math.random() * keys.length)];\n    // Set the new direction\n    dir = DIRECTIONS[key];\n    // Set the next move\n    nextMovePos = position + dir.movement;\n  }\n\n  return { nextMovePos, direction: dir };\n}\n\n// ! Breadth First Search from ghost to pacman to make the best next step\nexport function bestBFSMovement(position, direction, objectExist) {\n  return { nextMovePos: bfs(position, objectExist), direction };\n}\n\n// ! Too computationally heavy causes browser to crash\n\nfunction bfs(ghostPos, objectExists) {\n\n  const N = GRID_SIZE * GRID_SIZE;\n\n  const q = new PacQueue();\n  let visited = Array(N).fill(false);\n// let distance = Array(N).fill(Number.POSITIVE_INFINITY);\n  let backtrack = Array(N).fill(-1);\n\n  let foundPacman = false;\n  let pacmanPos = -1;\n\n  visited[ghostPos] = true;\n  backtrack[ghostPos] = -2;\n  //distance[ghostPos] = 0;\n  q.push(ghostPos);\n\n  while(!q.empty()) {\n\n    const pos = q.front();\n    q.poll();\n\n    const neighbors = [pos - GRID_SIZE, pos + GRID_SIZE, pos + 1, pos - 1];\n\n    for(let neigh of neighbors) {\n\n      if(neigh < 0 || neigh >= N)\n        continue;\n\n      if(\n        objectExists(neigh, OBJECT_TYPE.WALL) ||\n        objectExists(neigh, OBJECT_TYPE.GHOST)\n      )\n      continue;\n\n      if(visited[neigh])\n        continue;\n\n    //  distance[neigh] = distance[pos] + 1;\n      backtrack[neigh] = pos;\n\n      if(objectExists(neigh, OBJECT_TYPE.PACMAN)) {\n        foundPacman = true;\n        pacmanPos = neigh;\n        break;\n      }\n\n      q.push(neigh);\n    }\n\n    if(foundPacman)\n      break;\n\n  }\n\n  if(foundPacman) {\n\n    console.log(\"found a way to pacman\");\n\n    let traceback = [];\n    let curr = pacmanPos;\n\n    while(curr != -2) {\n      traceback.push(curr);\n      curr = backtrack[curr];\n    }\n\n    return traceback[traceback.length - 2];\n\n  }\n\n  // we couldnt get to pacman, so stay where you are\n  return ghostPos;\n\n}\n\n\n\n","import { LEVEL, OBJECT_TYPE, GRID_SIZE } from './setup';\nimport GameBoard from './GameBoard';\nimport Pacman from './Pacman';\nimport Ghost from './Ghost';\nimport { randomMovement, bestBFSMovement } from './ghostMoves';\n\nconst soundDot = './sounds/munch.wav';\nconst soundPill = './sounds/pill.wav';\nconst soundGameStart = './sounds/game_start.wav';\nconst soundGameOver = './sounds/death.wav';\nconst soundGhost = './sounds/eat_ghost.wav';\n\nconst gameGrid = document.querySelector('#game');\nconst scoreTable = document.querySelector(\"#score\");\nconst startButton = document.querySelector(\"#start-button\");\nconst levels = document.querySelector('.levels');\nconst gameBoard = GameBoard.createGameboard(gameGrid, LEVEL);\n\nconst POWER_PILL_TIME = 10000;\nconst GLOBAL_SPEED = 80;\n\n// initial setup\nlet score = 0;\nlet timer = null;\nlet gameWin = false;\nlet currentLevel = 1;\n\n//keep track whether or not pacman ate the power pill which will be active\n// for a certain amount of time\n\nlet powerPillActive = false;\nlet powerPillTimer = null;\n\n\nfunction playAudio(effect) {\n  try {\n    new Audio(effect).play();\n  } catch(e) {\n    // ain't a big deal X) haha\n  }\n}\n\nfunction gameOver(pacman, grid) {\n\n  playAudio(soundGameOver);\n\n  document.removeEventListener('keydown', e => {\n    pacman.handleKeyInput(e, gameBoard.objectExists.bind(gameBoard))\n  });\n\n  gameBoard.showGameStatus(gameWin);\n  clearInterval(timer);\n\n  startButton.classList.remove('hide');\n  levels.classList.remove('hide');\n\n}\n\nfunction checkCollision(pacman, ghosts) {\n  const collidedGhost = ghosts.find(ghost => ghost.pos == pacman.pos);\n\n  if(collidedGhost) {\n\n    if(pacman.powerPill) {\n\n      playAudio(soundGhost);\n\n      gameBoard.removeObject(collidedGhost.pos, [\n        OBJECT_TYPE.GHOST,\n        OBJECT_TYPE.SCARED,\n        collidedGhost.name\n      ]);\n      collidedGhost.pos = collidedGhost.startPos;\n      score+=100;\n    }\n\n    else {\n\n      gameBoard.removeObject(pacman.pos, [OBJECT_TYPE.PACMAN]);\n      gameBoard.rotateDiv(pacman.pos, 0);\n      gameOver(pacman, gameGrid);\n    }\n  }\n}\n\nfunction gameLoop(pacman, ghosts) {\n  gameBoard.moveCharacter(pacman);\n  checkCollision(pacman, ghosts);\n\n  ghosts.forEach(ghost => {\n    gameBoard.moveCharacter(ghost);\n    checkCollision(pacman, ghosts);\n  });\n\n  if(gameBoard.objectExists(pacman.pos, OBJECT_TYPE.DOT)) {\n\n    playAudio(soundDot);\n\n    gameBoard.removeObject(pacman.pos, [OBJECT_TYPE.DOT]);\n    gameBoard.dotCount--;\n    score+=10;\n\n  }\n\n  if(gameBoard.objectExists(pacman.pos, OBJECT_TYPE.PILL)) {\n\n    playAudio(soundPill);\n\n    gameBoard.removeObject(pacman.pos, [OBJECT_TYPE.PILL]);\n    pacman.powerPill  = true;\n    score += 50;\n\n    clearTimeout(powerPillTimer);\n\n    powerPillTimer = setTimeout(function() {\n      pacman.powerPill = false;\n    }, POWER_PILL_TIME);\n\n  }\n\n  if(pacman.powerPill !== powerPillActive) {\n    powerPillActive = pacman.powerPill;\n    ghosts.forEach(ghost => ghost.isScared = powerPillActive);\n  }\n\n  if(gameBoard.dotCount === 0) {\n    gameWin = true;\n    gameOver(pacman, ghosts);\n  }\n\n  scoreTable.innerHTML = score;\n\n}\n\nfunction startGame() {\n\n  playAudio(soundGameStart);\n\n  gameWin = false;\n  powerPillActive = false;\n  score = 0;\n\n  startButton.classList.add('hide');\n  levels.classList.add('hide');\n\n  gameBoard.createGrid(LEVEL);\n  const pacman = new Pacman(287, 2);\n\n  gameBoard.addObject(287, [OBJECT_TYPE.PACMAN]);\n\n  document.addEventListener('keydown', e => {\n    pacman.handleKeyInput(e, gameBoard.objectExists.bind(gameBoard))\n  });\n\n  let ghosts = [\n    new Ghost(5, 188,  randomMovement, OBJECT_TYPE.BLINKY)\n  ];\n\n  if(currentLevel >= 2) {\n    ghosts.push(new Ghost(4, 209,  randomMovement, OBJECT_TYPE.PINKY));\n  }\n\n  if(currentLevel ===  3) {\n    ghosts.push(new Ghost(3, 230,  randomMovement, OBJECT_TYPE.INKY));\n    ghosts.push(new Ghost(2, 251,  randomMovement, OBJECT_TYPE.CLYDE));\n  }\n\n  timer = setInterval(() => {\n    gameLoop(pacman, ghosts)\n  }, GLOBAL_SPEED);\n\n}\n\nstartButton.addEventListener('click', startGame);\n\nlevels.addEventListener('click', function(e) {\n  if(e.target.classList.contains('level')) {\n\n    const allButtons = levels.querySelectorAll('a');\n    allButtons.forEach(butt => butt.classList.remove(\"active\"));\n\n    e.target.classList.add(\"active\");\n    const levelStr = e.target.id;\n    const level = parseInt(levelStr[levelStr.length - 1]);\n    currentLevel = level;\n  }\n});\n\n"]}