<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Car game JavaScript</title>
<style>
*{
box-sizing: border-box;
margin: 0;
padding: 0;
}
.hide{
display: none;
}
.car{
width: 50px;
height: 70px;
background-color: red;
position: absolute;
bottom: 120px;
background-image: url(Images/car.jpg);
background-size: cover;
}
.GameArea{
width: 400px;
height: 100vh;
background-color: rgb(29, 26, 26);
margin: auto;
position: relative;
overflow: hidden;
border-left: 10px dashed white;
border-right:10px dashed white;
}
.lines{
width: 10px;
height: 100px;
background: white;
position: absolute;
margin-left: 195px;
}
.CarGame{
background-image: url(Images/backgrass.png);
background-size: cover;
}
.other{
width: 50px;
height: 70px;
background-color: blue;
position: absolute;
bottom: 120px;
}
.Score{
position: absolute;
top: 15px;
left: 50px;
text-align: center;
padding-top: 23px;
font-size: 30px;
line-height: 20px;
background-color: rgba(34, 119, 8, 0.952);
color: white;
width: 300px;
height: 100px;
box-shadow: 0 0 20px 0px rgba(0,0,0,0.1);
}
.StartScreen{
position: absolute;
background-color: rgba(34, 119, 8, 0.952);
color: white;
z-index: 1;
margin-top: 210px;
margin-left:360px;
text-align: center;
box-shadow: 0 0 20px 0px rgba(0,0,0,0.1);
font-size: 30px;
width: 50%;
height: 200px;
cursor: pointer;
border-radius: 23px;
}
button{
padding: 10px;
text-align: center;
background-color: black;
color: white;
}
</style>
</head>
<body>
<div class="CarGame">
<div class="Score">
</div>
<div class="StartScreen">
<p>Start Game by clicking Here<br><br>Arrow Keys to move<br><br>If you hit another car you will loose</p>
<button onclick="Reset()">Reset Highest Score</button>
</div>
<div class="GameArea">
</div>
</div>
<script>
const score=document.querySelector('.Score');
const startscreen=document.querySelector('.StartScreen');
const gamearea=document.querySelector('.GameArea');
let player={ speed:5,score:0};
let highest=0;
startscreen.addEventListener('click',start);
let keys={ArrowUp: false, ArrowDown: false, ArrowRight: false, ArrowLeft: false};
document.addEventListener('keydown',keyDown);
document.addEventListener('keyup',keyUp);
function keyDown(ev){
ev.preventDefault();
keys[ev.key]=true;
}
function keyUp(ev){
ev.preventDefault();
keys[ev.key]=false;
}
function isCollide(a,b){
aRect=a.getBoundingClientRect();
bRect=b.getBoundingClientRect();
return !((aRect.bottom<bRect.top)||(aRect.top>bRect.bottom)||(aRect.right<bRect.left)||(aRect.left>bRect.right));
}
function moveLines(){
let lines=document.querySelectorAll('.lines');
lines.forEach(function(item){
if(item.y>=700){
item.y-=750;
}
item.y+=player.speed;
item.style.top=item.y+'px';
})
}
function endGame(){
player.start=false;
startscreen.classList.remove('hide');
}
function moveCar(car){
let other=document.querySelectorAll('.other');
other.forEach(function(item){
if(isCollide(car,item)){
console.log('HIT');
endGame();
}
if(item.y>=750){
item.y=-300;
item.style.left=Math.floor(Math.random()*350) + 'px';
}
item.y+=player.speed;
item.style.top=item.y+'px';
})
}
function gamePlay(){
let car=document.querySelector('.car');
let road=gamearea.getBoundingClientRect();
if(player.start){
moveLines();
moveCar(car);
if(keys.ArrowUp && player.y>(road.top+70)){
player.y-=player.speed;
}
if(keys.ArrowDown && player.y<(road.bottom-70)){
player.y+=player.speed;
}
if(keys.ArrowLeft && player.x>0){
player.x-=player.speed;
}
if(keys.ArrowRight && player.x<(road.width-50)){
player.x+=player.speed;
}
car.style.top=player.y + 'px';
car.style.left=player.x + 'px';
window.requestAnimationFrame(gamePlay);
//console.log(player.score++);
player.score++;
if(player.score>=highest)
{
highest=player.score;
}
score.innerHTML="Your Score:"+ player.score+"<br><br>"+"Highest Score:"+highest;
}
}
function Reset(){
highest=0;
}
function start(){
//gamearea.classList.remove('hide');
startscreen.classList.add('hide');
gamearea.innerHTML="";
player.start=true;
player.score=0;
window.requestAnimationFrame(gamePlay);
for(x=0;x<5;x++){
let roadline=document.createElement('div');
roadline.setAttribute('class','lines');
roadline.y=(x*150);
roadline.style.top=roadline.y+'px';
gamearea.appendChild(roadline);
}
let car=document.createElement('div');
car.setAttribute('class','car');
gamearea.appendChild(car);
player.x=car.offsetLeft;
player.y=car.offsetTop;
for(x=0;x<3;x++){
let othercar=document.createElement('div');
othercar.setAttribute('class','other');
othercar.y=((x+1)*350)* -1;
othercar.style.top=othercar.y+'px';
othercar.style.left=Math.floor(Math.random()*350) + 'px';
gamearea.appendChild(othercar);
}
}
</script>
</body>
</html>
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