JSFiddle - React, Tailwind, and code Playground

HTML

<canvas id="gameWorld" width="800" height="600"></canvas>

JavaScript

var FIRE = 32;
        var NORTH = 38;
        var SOUTH = 40;
        var EAST  = 39;
        var WEST  = 37;
        var destX = 350;
        var destY = 500;
        var canvas = null;
        var context = null;
        var sprites = null;
        var player = null;
        var island = null;
        var enemies = [];
        var fires = [];
        var gameLoopInterval = null;
        var offScreenFire = null;
        var isShooting = false;
        var intersect = null;

    var Fire = function() {
            this.spriteX = 278;
            this.spriteY = 110;
            this.spriteWidth = 13;
            this.spriteHeight = 16;
            this.destX = player.destX + 25;
            this.destY = player.destY;
            this.speed = 5;
        }

    var Player = function(name) {
            this.name = name;
            this.spriteX = 5;
            this.spriteY = 400;
            this.spriteWidth = 64;
            this.spriteHeight = 64;
            this.destX = 350;
            this.destY = 500;
            this.speed = 5;
            this.level = 1;
        }

    var Enemy = function() {

            this.spriteX = 4;
            this.spriteY = 4;
            this.spriteWidth = 32;
            this.spriteHeight = 32;
            this.destX = Math.ceil(Math.random() * (800 - this.spriteWidth));
            this.destY = this.spriteWidth;
            this.speed = Math.ceil(Math.random() * 5);
        }

    var Island = function() {

            this.spriteX = 168;
            this.spriteY = 500;
            this.spriteWidth = 64;
            this.spriteHeight = 64;
            this.destX = Math.ceil(Math.random() * (800 - this.spriteWidth));
            this.destY = this.spriteWidth - 64;
            this.speed = 2;
        }

    Fire.prototype.takeTurn = function() {

        var intersect;
        var projdestX  = this.destX;
        var projdestY  = this.destY;
        var projspriteWidth  = this.spriteWidth;
        var projspriteHeight  =...