Well, my way of changing the level would be as you can see here in my "game.js". You can just search for .js and you will find it. Even if it would work by changing the child as I try to do, I would gladly like to do like you guys adviced. How can I rewrite my code in the way you and HappyCoder mentioned? Now you have all my code. The main and the game1. The game2 is just a copy of game one. Just ignore all the code, I just need some kind of general clue of how to change this.
var canvasJet = document.getElementById('canvasJet');
var ctxJet = canvasJet.getContext('2d');
var canvasBg = document.getElementById('canvasBg');
var ctxBg = canvasBg.getContext('2d');
var canvasBullet = document.getElementById('canvasBullet');
var ctxBullet = canvasBullet.getContext('2d');
var jet1 = new Jet();
var boss1 = new Boss();
var word1 = new Word();
var word2 = new Word2();
var word3 = new Word3();
var star1x = 0;
var star1y = 0;
var star1dx = -2.4;
var star1dy = 0;
var star2x = 0;
var star2y = 0;
var star2dx = -1.4;
var star2dy = 0;
var star3x = 0;
var star3y = 0;
var star3dx = -.4;
var star3dy = 0;
var kills = 0;
var pause = false;
var pauseCounter = 0;
//var bossLife = 40;
var timerOn = true;
var countdown = 15000;
var earthX = 800;
var earthY = 200;
var pendingImages = 22;
var difficulty = 100;
var shootCounter = 0;
var shootLimit = 34;
var finishedGame = false;
var earthDead = false;
var gameStart = true;
var newScript = window.document.createElement("script");
var endPress = false;
var weaponSpeed = 0;
var w1tim = 0;
var ran1 = Math.floor((Math.random()*7500)+500);
var ran2 = Math.floor((Math.random()*7500)+800);
var ran3 = Math.floor((Math.random()*7500)+1000);
var requestAnimFrame = window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.msRequestAnimationFrame ||
window.oRequestAnimationFrame;
var klaver = new Audio("images/klaver.mp3");
var hit = new Audio("images/hit.mp3");
var shoot = new Audio("images/laser.mp3");
var music = new Audio("images/rymd2.ogg");
var die = new Audio("images/die.ogg");
music.loop = true;
music.play();
var background = new Image();
background.src = 'images/background.png';
background.addEventListener('load', imageLoaded, false);
var bullet = new Image();
bullet.src = 'images/Bullet.gif';
bullet.addEventListener('load', imageLoaded, false);
var star1 = new Image();
star1.src = 'images/background3c.png';
star1.addEventListener('load', imageLoaded, false);
var star2 = new Image();
star2.src = 'images/background3b.png';
star2.addEventListener('load', imageLoaded, false);
var star3 = new Image();
star3.src = 'images/background3a.png';
star3.addEventListener('load', imageLoaded, false);
var star1b = new Image();
star1b.src = 'images/background4c.png';
star1b.addEventListener('load', imageLoaded, false);
var star2b = new Image();
star2b.src = 'images/background4b.png';
star2b.addEventListener('load', imageLoaded, false);
var star3b = new Image();
star3b.src = 'images/background4a.png';
star3b.addEventListener('load', imageLoaded, false);
var enemySprite = new Image();
enemySprite.src = 'images/enemySprite.png';
enemySprite.addEventListener('load', imageLoaded, false);
var boss = new Image();
boss.src = 'images/bossSprite.png';
boss.addEventListener('load', imageLoaded, false);
var sprite = new Image();
sprite.src = 'images/planeSprite.png';
sprite.addEventListener('load', imageLoaded, false);
var startmeny = new Image();
startmeny.src = 'images/startmeny.png';
startmeny.addEventListener('load', imageLoaded, false);
var earth = new Image();
earth.src = 'images/earth.png';
earth.addEventListener('load', imageLoaded, false);
var ed = new Image();
ed.src = 'images/earthdead.png';
ed.addEventListener('load', imageLoaded, false);
var finish = new Image();
finish.src = 'images/finish.png';
finish.addEventListener('load', imageLoaded, false);
var fail = new Image();
fail.src = 'images/fail.png';
fail.addEventListener('load', imageLoaded, false);
var w1 = new Image();
w1.src = 'images/f.gif';
w1.addEventListener('load', imageLoaded, false);
var w2 = new Image();
w2.src = 'images/i.gif';
w2.addEventListener('load', imageLoaded, false);
var w3 = new Image();
w3.src = 'images/r.gif';
w3.addEventListener('load', imageLoaded, false);
var b1 = new Image();
b1.src = 'images/missile.gif';
b1.addEventListener('load', imageLoaded, false);
var b2 = new Image();
b2.src = 'images/spike.gif';
b2.addEventListener('load', imageLoaded, false);
var b3 = new Image();
b3.src = 'images/speed.gif';
b3.addEventListener('load', imageLoaded, false);
// main functions
function init() {
loop();
document.addEventListener('keydown', checkKeyDown, false);
document.addEventListener('keyup', checkKeyUp, false);
}
function loop() {
if(pause == false){
updateGame();
}
if(timerOn == true){
requestAnimFrame(loop);
}
}
function imageLoaded()
{
--pendingImages;
if (pendingImages == 0)
{
init();
}
}
var spriteX = 0;
var spriteY = 0;
var enemySpriteX = 0;
var bossSpriteX = 0;
var spriteXstor = 100;
var spriteYstor = 55;
var enemySpriteXstor = 50;
var enemySpriteYstor = 50;
var bossSpriteXstor = 100;
var bossSpriteYstor = 100;
var changer = 1;
var lol = false;
var timerAnim = 0;
var bossDead = false;
function redrawTest() {
if(jet1.direction == 1){
ctxBg.drawImage(sprite, spriteX, 0, spriteXstor, spriteYstor, jet1.drawX, jet1.drawY, spriteXstor, spriteYstor);
}
else if(jet1.direction == -1){
ctxBg.drawImage(sprite, spriteX, 55, spriteXstor, spriteYstor, jet1.drawX, jet1.drawY, spriteXstor, spriteYstor);
}
}
function updateSprite(){
redrawTest();
if(lol == false){
spriteX += 100;
enemySpriteX += 50;
bossSpriteX += 100;
if(spriteX >= 500 ){
spriteX = 0;
}
if(enemySpriteX >= 150 ){
enemySpriteX = 0;
}
if(bossSpriteX >= 700 ){
bossSpriteX = 0;
}
lol = true;
}
}
function updateGame(){
if(gameStart == false){
ctxBg.drawImage(startmeny, 0, 0);
}
if(gameStart == true){
ctxBg.drawImage(background, 0, 0);
timerAnim++;
shootCounter++;
w1tim++;
if(timerAnim == 5){
lol = false;
timerAnim = 0;
}
if(countdown > 0){
countdown--;
}
if(countdown <= 5000){
if(earthDead == false){
ctxBg.drawImage(earth, earthX, earthY);
}
if(earthDead == true){
ctxBg.drawImage(ed, earthX, earthY);
}
if(countdown > 0){
earthX -= 0.1;
}
}
jet1.draw();
if(finishedGame == false && bossDead == false){
jet1.spawnEnemy();
jet1.collision();
}
drawStars();
redrawTest();
diffSet();
if(countdown > 0){
jet1.move();
moveStar1();
moveStar2();
moveStar3();
boss1.moveBoss();
boss1.draw();
boss1.collision();
if(w1tim >= 1000+ran1){
word1.draw();
word1.moveWord();
word1.collision();
}
if(w1tim >= 1000+ran2){
word2.draw();
word2.moveWord();
word2.collision();
}
if(w1tim >= 1000+ran3){
word3.draw();
word3.moveWord();
word3.collision();
}
updateSprite();
if(countdown <= 1 && finishedGame == false){
earthDead = true;
finishedGame = true;
}
else if(earthDead == true){
ctxBg.drawImage(fail, 0, 0);
}
else if(boss1.bossLife <= 0 && finishedGame == false){
die.play();
bossDead = true;
finishedGame = true;
}
else if(finishedGame == true){
ctxBg.drawImage(finish, 0, 0);
endPress = true;
}
}
drawText();
}
}
function diffSet(){
if(jet1.weapon == 0){
weaponSpeed = 0; // standard
}
else if(jet1.weapon == 1){
weaponSpeed = 10; //missile
}
else if(jet1.weapon == 2){
weaponSpeed = 20; // rock
}
else if(jet1.weapon == 3){
weaponSpeed = -20; // speed
}
if(kills < 5){
difficulty = 100;
shootLimit = 34+weaponSpeed;
}
else if(kills >= 5 && kills < 10){
difficulty = 95;
shootLimit = 30+weaponSpeed;
}
else if(kills >= 10 && kills < 20){
difficulty = 90;
shootLimit = 25+weaponSpeed;
}
else if(kills >= 20 && kills < 30){
difficulty = 80;
shootLimit = 23+weaponSpeed;
}
else if(kills >= 30 && kills < 40){
difficulty = 65;
shootLimit = 21+weaponSpeed;
}
else if(kills >= 40 && kills < 50){
difficulty = 55;
shootLimit = 19+weaponSpeed;
}
else if(kills >= 50 && kills < 60){
difficulty = 40;
shootLimit = 17+weaponSpeed;
}
else if(kills >= 60 && kills < 70){
difficulty = 30;
shootLimit = 12+weaponSpeed;
}
else if(kills >= 70 && kills < 80){
difficulty = 20;
shootLimit = 7+weaponSpeed;
}
else if(kills >= 80 && kills < 90){
difficulty = 10;
shootLimit = 3+weaponSpeed;
}
else if(kills >= 90 && kills < 100){
difficulty = 8;
shootLimit = 1+weaponSpeed;
}
}
function drawStars(){
if(countdown > 7500){
// Först stjärnorna
if(star1x > -1000){
ctxBg.drawImage(star1, star1x, star1y);
}
if(star1x < 0){
ctxBg.drawImage(star1, star1x+800, star1y);
if(star1x + 800 < 0){
ctxBg.drawImage(star1, star1x+1600, star1y);
star1x = 0;
}
}
//////
// Andra stjärnorna
if(star2x > -1000){
ctxBg.drawImage(star2, star2x, star2y);
}
if(star2x < 0){
ctxBg.drawImage(star2, star2x+800, star2y);
if(star2x + 800 < 0){
ctxBg.drawImage(star2, star2x+1600, star2y);
star2x = 0;
}
}
//////
// Tredje stjärnorna
if(star3x > -1000){
ctxBg.drawImage(star3, star3x, star3y);
}
if(star3x < 0){
ctxBg.drawImage(star3, star3x+800, star3y);
if(star3x + 800 < 0){
ctxBg.drawImage(star3, star3x+1600, star3y);
star3x = 0;
}
}
//////
}
else if(countdown <= 7500){
// Först stjärnorna
if(star1x > -1000){
ctxBg.drawImage(star1b, star1x, star1y);
}
if(star1x < 0){
ctxBg.drawImage(star1b, star1x+800, star1y);
if(star1x + 800 < 0){
ctxBg.drawImage(star1b, star1x+1600, star1y);
star1x = 0;
}
}
//////
// Andra stjärnorna
if(star2x > -1000){
ctxBg.drawImage(star2b, star2x, star2y);
}
if(star2x < 0){
ctxBg.drawImage(star2b, star2x+800, star2y);
if(star2x + 800 < 0){
ctxBg.drawImage(star2b, star2x+1600, star2y);
star2x = 0;
}
}
//////
// Tredje stjärnorna
if(star3x > -1000){
ctxBg.drawImage(star3b, star3x, star3y);
}
if(star3x < 0){
ctxBg.drawImage(star3b, star3x+800, star3y);
if(star3x + 800 < 0){
ctxBg.drawImage(star3b, star3x+1600, star3y);
star3x = 0;
}
}
//////
}
}
function moveStar1(){
star1x += star1dx;
}
function moveStar2(){
star2x += star2dx;
}
function moveStar3(){
star3x += star3dx;
}
function drawText(){
ctxBg.lineWidth=1;
ctxBg.fillStyle="#FFFFFF";
ctxBg.lineStyle="#ffff00";
ctxBg.font="18px sans-serif";
ctxBg.fillText("Power: " + kills, 20, 20);
ctxBg.fillText(countdown + " km to Earth", 650, 20);
}
function clearCtxBg() {
ctxBg.clearRect(0, 0, 800, 600);
}
// end of main functions
// jet functions
function Jet() {
this.drawX = 100;
this.drawY = 200;
this.dx = 0;
this.dy = 0;
this.direction = 1;
this.fire = false;
this.isShooting = false;
this.bullets = [];
this.currentBullet = 0;
this.counter = 0;
this.enemyRand;
this.enemyRand2;
//this.bossLife = 40;
this.collisiontest = false;
this.weapon = 0;
this.enemies = [];
this.currentEnemy = 0;
for (var y = 0; y < 800; y++) {
this.bullets[this.bullets.length] = new Bullet();
}
for (var u = 0; u < 300; u++) {
this.enemies[this.enemies.length] = new Enemy();
}
}
Jet.prototype.move = function(){
this.drawX += this.dx;
this.drawY += this.dy;
}
Jet.prototype.draw = function() {
clearCtxJet();
this.fireBullet();
this.drawAllBullets();
this.drawAllEnemies();
}
Jet.prototype.drawAllBullets = function() {
for (var ii = 0; ii < this.bullets.length; ii++) {
if (this.bullets[ii].drawX >= 0 && this.bullets[ii].bulletLifea > 0) {
this.bullets[ii].draw();
this.bullets[ii].move();
}
}
}
Jet.prototype.collision = function() {
for (var i = 0; i < this.bullets.length; i++) {
for (var j = 0; j < this.enemies.length; j++) {
// Minuspoäng när fiender är utanför skärmen
if(this.enemies[j].drawX > -10 && this.enemies[j].drawX < 0 && this.enemies[j].outScreen == false){
kills--;
this.enemies[j].outScreen = true;
klaver.play();
}
// Om en bullet krockar med en fiende
if(this.bullets.drawX > this.enemies[j].drawX && this.bullets.drawX < this.enemies[j].drawX+50 && this.bullets.drawY+30 > this.enemies[j].drawY && this.bullets.drawY < this.enemies[j].drawY+25 && this.bullets.bulletLifea > 0 && this.enemies[j].life > 0 ){
if(jet1.weapon == 0){
this.enemies[j].life-=2;
}
else if(jet1.weapon == 1){
this.enemies[j].life-=6;
}
else if(jet1.weapon == 2){
this.enemies[j].life-=3;
}
else if(jet1.weapon == 3){
this.enemies[j].life--;
}
if(this.enemies[j].life < 1){
kills++;
hit.play();
}
this.bullets.bulletLifea--;
}
}
}
}
Jet.prototype.drawAllEnemies = function() {
for (var ij = 0; ij < this.enemies.length; ij++) {
if (this.enemies[ij].drawX >= 0) {
if(this.enemies[ij].life > 0){
this.enemies[ij].draw();
this.enemies[ij].move();
}
}
}
}
Jet.prototype.fireBullet = function() {
if (this.fire == true && this.isShooting == false) {
this.isShooting = true;
if(this.bullets[this.currentBullet].bulletLifea > 0){
if(this.direction == 1){
this.bullets[this.currentBullet].fire(this.drawX+95, this.drawY);
}
if(this.direction == -1){
this.bullets[this.currentBullet].fire(this.drawX, this.drawY);
}
shoot.play();
this.bullets[this.currentBullet].isShot = true;
}
if(this.direction == 1){
this.bullets[this.currentBullet].dxa = 8;
}
if(this.direction == -1){
this.bullets[this.currentBullet].dxa = -8;
}
this.currentBullet++;
if (this.currentBullet >= this.bullets.length) this.currentBullet = 0;
} else if (this.fire == false) {
this.isShooting = false;
}
}
Jet.prototype.spawnEnemy = function(){
this.counter++;
this.enemyRand = Math.floor((Math.random()*500)+difficulty);
this.enemyRand2 = Math.floor((Math.random()*550)+1);
if (this.counter >= this.enemyRand) {
this.enemies[this.currentEnemy].fire(800, this.enemyRand2);
this.currentEnemy++;
if (this.currentEnemy >= this.enemies.length) {
this.currentEnemy = 0;
}
this.counter = 0;
}
}
function clearCtxJet() {
ctxJet.clearRect(0, 0, 800, 600);
ctxBullet.clearRect(0, 0, 800, 600);
}
// end of jet functions
// bullet functions
function Bullet() {
this.drawX = -20;
this.drawY = 0;
this.dxa = 3;
this.dya = 1;
this.isShot = false;
this.bulletLifea = 1;
this.gravity = 10;
this.dt = .2;
}
Bullet.prototype.move = function(){
if(jet1.weapon == 0){
this.drawX += this.dxa;
}
else if(jet1.weapon == 1){
//if(this.drawX + this.dx > 780){
// this.dx = -this.dx;
// }
// if(this.drawX + this.dx < 0){
// this.dx = -this.dx;
// }
// else{
// this.drawX += this.dx;
// }
this.dxa = 0;
this.dya += this.gravity * this.dt;
this.drawY += this.dya*this.dt + .2*this.gravity*this.dt*this.dt;
}
else if(jet1.weapon == 2){
this.drawX += this.dxa;
this.dya += this.gravity * this.dt;
this.drawY += this.dya*this.dt + .2*this.gravity*this.dt*this.dt;
}
else if(jet1.weapon == 3){
this.drawX += this.dxa;
}
}
Bullet.prototype.draw = function() {
if( this.bulletLifea > 0){
if(jet1.weapon == 0){
ctxBullet.drawImage(bullet, this.drawX, this.drawY+25);
}
else if(jet1.weapon == 1){
ctxBullet.drawImage(b1, this.drawX, this.drawY+25);
}
else if(jet1.weapon == 2){
ctxBullet.drawImage(b2, this.drawX, this.drawY+25);
}
else if(jet1.weapon == 3){
ctxBullet.drawImage(b3, this.drawX, this.drawY+25);
}
}
}
Bullet.prototype.fire = function(startX, startY) {
this.drawX = startX;
this.drawY = startY;
}
// end of bullet functions
// boss functions
function Boss() {
this.bossX = 200;
this.bossY = 200;
this.bossDX = 3;
this.bossDY = 3;
this.bossLife = 20;
}
Boss.prototype.moveBoss = function(){
this.bossX += this.bossDX;
this.bossY += this.bossDY;
if(this.bossX <= 0 || this.bossX >= 750){
this.bossDX *= -1;
}
if(this.bossY <= 0 || this.bossY >= 550){
this.bossDY *= -1;
}
}
Boss.prototype.collision = function(){
for (var i = 0; i < jet1.bullets.length; i++) {
// Skjuta på bossen
if(kills >= 50){
if(jet1.bullets.drawX > this.bossX && jet1.bullets.drawX < this.bossX+100 && jet1.bullets.drawY > this.bossY && jet1.bullets.drawY < this.bossY+90 && jet1.bullets.bulletLifea > 0 && this.bossLife > 0){
jet1.bullets.bulletLifea--;
if(jet1.weapon == 0){
this.bossLife-=2;
}
else if(jet1.weapon == 1){
this.bossLife-=6;
}
else if(jet1.weapon == 2){
this.bossLife-=3;
}
else if(jet1.weapon == 3){
this.bossLife--;
}
}
}
}
}
Boss.prototype.draw = function() {
if(kills >= 50 && this.bossLife > 0){
ctxBg.drawImage(boss, bossSpriteX, 0, bossSpriteXstor, bossSpriteYstor, this.bossX, this.bossY, bossSpriteXstor, bossSpriteYstor);
}
}
// end of boss functions
// word functions
function Word() {
this.wordX = 800;
this.wordY = 200;
this.wordDX = -3;
this.wordDY = 3;
this.wordLife = 1;
}
Word.prototype.moveWord = function(){
this.wordX += this.wordDX;
}
Word.prototype.collision = function(){
if(jet1.drawX+80 >= this.wordX && jet1.drawY+25 >= this.wordY && jet1.drawY+25 <= this.wordY+20 && jet1.drawX <= this.wordX+15 ){
this.wordLife--;
jet1.weapon = 1;
}
}
Word.prototype.draw = function() {
if(this.wordLife > 0){
ctxBg.drawImage(w1, this.wordX, this.wordY);
}
}
// end of word functions
// word2 functions
function Word2() {
this.wordX = 800;
this.wordY = 100;
this.wordDX = -3;
this.wordDY = 3;
this.wordLife = 1;
}
Word2.prototype.moveWord = function(){
this.wordX += this.wordDX;
}
Word2.prototype.collision = function(){
if(jet1.drawX+80 >= this.wordX && jet1.drawY+25 >= this.wordY && jet1.drawY+25 <= this.wordY+20 && jet1.drawX <= this.wordX+15 ){
this.wordLife--;
jet1.weapon = 2;
}
}
Word2.prototype.draw = function() {
if(this.wordLife > 0){
ctxBg.drawImage(w2, this.wordX, this.wordY);
}
}
// end of word2 functions
// word3 functions
function Word3() {
this.wordX = 800;
this.wordY = 300;
this.wordDX = -3;
this.wordDY = 3;
this.wordLife = 1;
}
Word3.prototype.moveWord = function(){
this.wordX += this.wordDX;
}
Word3.prototype.collision = function(){
if(jet1.drawX+80 >= this.wordX && jet1.drawY+25 >= this.wordY && jet1.drawY+25 <= this.wordY+20 && jet1.drawX <= this.wordX+15 ){
this.wordLife--;
jet1.weapon = 3;
}
}
Word3.prototype.draw = function() {
if(this.wordLife > 0){
ctxBg.drawImage(w3, this.wordX, this.wordY);
}
}
// end of word3 functions
// enemy functions
function Enemy() {
this.drawX = -20;
this.drawY = 0;
this.dx;
this.isShot = false;
this.life = 6;
this.outScreen = false;
}
Enemy.prototype.move = function(){
if(this.life == 6){
this.dx = 2.5;
}
if(this.life == 4){
this.dx = 4.1;
}
if(this.life == 2){
this.dx = 6;
}
this.drawX -= this.dx;
}
Enemy.prototype.draw = function() {
if(this.life > 4){
ctxBullet.drawImage(enemySprite, enemySpriteX, 0, enemySpriteXstor, enemySpriteYstor, this.drawX, this.drawY, enemySpriteXstor, enemySpriteYstor);
}
if(this.life > 2 && this.life <= 4){
ctxBullet.drawImage(enemySprite, enemySpriteX, 50, enemySpriteXstor, enemySpriteYstor, this.drawX, this.drawY, enemySpriteXstor, enemySpriteYstor);
}
if(this.life > 0 && this.life <= 2){
ctxBullet.drawImage(enemySprite, enemySpriteX, 100, enemySpriteXstor, enemySpriteYstor, this.drawX, this.drawY, enemySpriteXstor, enemySpriteYstor);
}
}
Enemy.prototype.fire = function(startX, startY) {
this.drawX = startX;
this.drawY = startY;
}
// end of enemy functions
// event functions
function checkKeyDown(e) {
var keyID = e.keyCode || e.which;
if(timerOn == true){
if (keyID === 38 ) { //up arrow
e.preventDefault();
jet1.dy = -3;
}
if (keyID === 39 ) { //right arrow
jet1.direction = 1;
e.preventDefault();
jet1.dx = 3;
}
if (keyID === 40 ) { //down arrow
e.preventDefault();
jet1.dy = 3;
}
if (keyID === 37 ) { //left arrow
e.preventDefault();
jet1.dx = -3;
jet1.direction = -1;
}
if (keyID === 80 ) { // P
if(pauseCounter == 0){
pause = true;
pauseCounter++;
}
else if(pauseCounter == 1){
pause = false;
pauseCounter = 0;
}
}
if (keyID === 13 ) { //enter
e.preventDefault();
//alert(iiuu);
gameStart = true;
if(endPress == true && bossDead == true){
timerOn = false;
newScript.src = "game2.js";
window.document.body.appendChild(newScript);
music.pause();
}
}
if (keyID === 69 ) { //e
e.preventDefault();
//if (canvasBg.parentNode) {
// canvasBg.parentNode.removeChild(canvasBg);
// canvasJet.parentNode.removeChild(canvasJet);
// canvasBullet.parentNode.removeChild(canvasBullet);
//}
gameStart = true;
timerOn = false;
newScript.src = "game2.js";
window.document.body.appendChild(newScript);
music.pause();
}
if (keyID === 32) { // space
e.preventDefault();
if(shootCounter >= shootLimit){
jet1.fire = true;
shootCounter = 0;
if(jet1.weapon == 0){
shoot.play();
}
}
}
}
}
function checkKeyUp(e) {
var keyID = e.keyCode || e.which;
if(timerOn == true){
if (keyID === 38 ) { //up arrow
jet1.dy = 0;
}
if (keyID === 39 ) { //right arrow
jet1.dx = 0;
}
if (keyID === 40 ) { //down arrow
jet1.dy = 0;
}
if (keyID === 37 ) { //left arrow
jet1.dx = 0;
}
if (keyID === 32) { // space
jet1.fire = false;
}
}
}
// end of event functions