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(objectExist) {
         let nextMovePos = this.pos + this.dir.movement

        if (
            objectExist(nextMovePos, OBJECT_TYPE.WALL)
            || objectExist(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, objectExist) {
        let dir

        if (! e.keyCode >= 37 && ! e.keyCode <= 40) {
            return
        } else {
            dir = DIRECTIONS[e.key]
        }

        const nextMovePos = this.pos + dir.movement
        if (
            objectExist(nextMovePos, OBJECT_TYPE.WALL)
            || objectExist(nextMovePos, OBJECT_TYPE.GHOSTLAIR)
        ) return
        this.dir = dir
    }
}

export default PacMan