Pacman.js

import { OBJECT_TYPE, DIRECTIONS } from './setup';

class Pacman {
  constructor(speed, startPos) {
    this.pos = startPos;
    this.speed = speed;
    this.dir = null;
    this.timer = 0;
    this.powerPill = false;
    this.rotation = true;
  }

  shouldMove() {
    if (!this.dir) return false;
    if (this.timer === this.speed) {
      this.timer = 0;
      return true;
    }
    this.timer++;
  }

  getNextMove(objectExists) {
    let nextMovePos = this.pos + this.dir.movement;
    if (
      objectExists(nextMovePos, OBJECT_TYPE.WALL) ||
      objectExists(nextMovePos, OBJECT_TYPE.GHOSTLAIR)
    ) {
      nextMovePos = this.pos;
    }
    return { nextMovePos, direction: this.dir };
  }
  makeMove() {
    const classesToRemove = [OBJECT_TYPE.PACMAN];
    const classesToAdd = [OBJECT_TYPE.PACMAN];
    return { classesToRemove, classesToAdd };
  }
  setNewPos(nextMovePos) {
    this.pos = nextMovePos;
  }
  handleKeyInput(e, objectExists) {
    let dir;
    if (e.keyCode >= 37 && e.keyCode <= 40) {
      dir = DIRECTIONS[e.key];
    } else {
      return;
    }
    const nextMovePos = this.pos + dir.movement;
    if (
      objectExists(nextMovePos, OBJECT_TYPE.WALL) ||
      objectExists(nextMovePos, OBJECT_TYPE.GHOSTLAIR)
    )
      return;
    this.dir = dir;
  }
}

export default Pacman;