/
Pong.html
executable file
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/
Pong.html
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<html>
<head>
<meta charset="UTF-8">
<style type='text/css'>
#gamearea{
width: 40%;
height: 90%;
border: 3px solid black;
position: relative;
}
body {
display: flex;
flex-direction: column;
align-items: center;
width: 100vw;
height: 100vh;
margin: 0;
background-image: url("Ripple_background.jpeg");
background-size: cover;
}
#ball {
width: 25px;
height: 25px;
background-color: #32CD32;
border-radius: 100%;
position: absolute;
left:50%;
top:50%;
}
#player1 {
font-size: 3ex;
}
#player2 {
font-size: 3ex;
}
#paddle1 {
position: absolute;
top: 10px;
left:35%;
width: 30%;
height:3%;
background-color: #83e5c0;
}
#paddle2 {
position: absolute;
bottom: 10px;
left:35%;
width: 30%;
height:3%;
background-color:#83e5c0;
}
</style>
</head>
<body>
<div id='scoreboard'>
<div id='player1'>
Player 1: <span id='p1score'>0</span>
</div>
<div id='player2'>
Player 2: <span id='p2score'>0</span>
</div>
</div>
<div id='gamearea'>
<div id='paddle1'>
</div>
<div id='ball'>
</div>
<div id='paddle2'>
</div>
</div>
</br>
<script type='text/javascript'>
let game = {
p1score: 0,
p2score: 0,
ball : {
velX: 6,
velY: 6,
top: 0,
left:0,
width: 25,
height: 25,
graphic: null
},
paddle1 : {
velX: 0,
velY: 0,
top: 0,
left:0,
width: -1,
height: -1,
graphic: null
},
paddle2 : {
velX: 0,
velY: 0,
top: 0,
left:0,
width: -1,
height: -1,
graphic: null
},
}
function init(){
let gamearea= document.getElementById('gamearea');
let ball= document.getElementById('ball');
game.ball.width= ball.clientWidth;
game.ball.height= ball.clientHeight;
game.ball.top= gamearea.clientHeight/2 - game.ball.height/2;
game.ball.left= gamearea.clientWidth/2 - game.ball.width/2;
game.ball.graphic=ball;
let paddle1= document.getElementById('paddle1');
game.paddle1.width= paddle1.clientWidth;
game.paddle1.height= paddle1.clientHeight;
game.paddle1.top = paddle1.offsetTop;
game.paddle1.left= paddle1.offsetLeft;
game.paddle1.graphic=paddle1;
let paddle2= document.getElementById('paddle2');
game.paddle2.width= paddle2.clientWidth;
game.paddle2.height= paddle2.clientHeight;
game.paddle2.top= paddle2.offsetTop;
game.paddle2.left= paddle2.offsetLeft;
game.paddle2.graphic=paddle2;
document.addEventListener('keydown', handleKeyDown);
document.addEventListener('keyup', handleKeyUp);
game.ball.graphic.style.top= game.ball.top + 'px';
game.ball.graphic.style.left= game.ball.left + 'px';
game.paddle1.graphic.style.left= game.paddle1.left + 'px';
game.paddle2.graphic.style.left= game.paddle2.left + 'px';
setInterval(nextFrame, 13);
}
function handleKeyDown(evt){
if(evt.keyCode == 37)
{
game.paddle1.velX = -5;
}
if(evt.keyCode == 39)
{
game.paddle1.velX = 5;
}
if(evt.keyCode == 65)
{
game.paddle2.velX = -5;
}
if(evt.keyCode == 68)
{
game.paddle2.velX = 5;
}
}
function handleKeyUp(evt){
if(evt.keyCode == 37)
{
game.paddle1.velX = 0;
}
if(evt.keyCode == 39)
{
game.paddle1.velX = 0;
}
if(evt.keyCode == 65)
{
game.paddle2.velX = 0;
}
if(evt.keyCode == 68)
{
game.paddle2.velX = 0;
}
}
function nextFrame() {
game.ball.left=game.ball.left + game.ball.velX;
game.ball.top=game.ball.top + game.ball.velY;
game.paddle1.left += game.paddle1.velX;
game.paddle2.left += game.paddle2.velX;
let gamearea = document.getElementById('gamearea');
let ballBottom = game.ball.top+ game.ball.height;
let ballRight = game.ball.left+ game.ball.width;
if( ballBottom>gamearea.clientHeight){
game.ball.velY = game.ball.velY*-1;
game.ball.top=gamearea.clientHeight-game.ball.height;
game.p1score++;
let p1score = document.getElementById('p1score');
p1score.innerHTML = game.p1score;
game.ball.top= gamearea.clientHeight/2 - game.ball.height/2;
game.ball.left= gamearea.clientWidth/2 - game.ball.width/2;
}
if( ballRight>gamearea.clientWidth){
game.ball.velX = game.ball.velX * -1;
game.ball.left=gamearea.clientWidth-game.ball.width;
}
if(game.ball.top<0) {
game.ball.velY=game.ball.velY *-1;
game.ball.top = 0;
game.p2score++;
let p2score = document.getElementById('p2score');
p2score.innerHTML = game.p2score;
game.ball.top= gamearea.clientHeight/2 - game.ball.height/2;
game.ball.left= gamearea.clientWidth/2 - game.ball.width/2;
}
if(game.p1score==5){
alert ("Player 1 wins")
location.reload();
}
if(game.p2score==5){
alert ("Player 2 wins")
location.reload();
}
if (game.paddle1.left<0){
game.paddle1.left=0;
game.paddle1.velX=0;
}
if (game.paddle1.left+game.paddle1.width>gamearea.clientWidth){
game.paddle1.left=gamearea.clientWidth-game.paddle1.width;
game.paddle1.velX=0;
}
if (game.paddle2.left<0){
game.paddle2.left=0;
game.paddle2.velX=0;
}
if (game.paddle2.left+game.paddle2.width>gamearea.clientWidth){
game.paddle2.left=gamearea.clientWidth-game.paddle2.width;
game.paddle2.velX=0;
}
if(game.ball.left<0) {
game.ball.velX=game.ball.velX *-1;
game.ball.left = 0
}
//Ball Collides with the Bottom of Paddle1
if(game.ball.top < game.paddle1.top + game.paddle1.height && game.paddle1.left < game.ball.left + game.ball.width && game.ball.left < game.paddle1.left + game.paddle1.width){
game.ball.top = game.paddle1.top + game.paddle1.height
game.ball.velY *= -1;
}
if(game.ball.top+game.ball.height > game.paddle2.top && game.ball.left + game.ball.width > game.paddle2.left && game.ball.left < game.paddle2.left + game.paddle2.width){
game.ball.top=game.paddle2.top-game.ball.height
game.ball.velY *= -1;
}
game.ball.graphic.style.top= game.ball.top+'px';
game.ball.graphic.style.left= game.ball.left+'px';
game.paddle1.graphic.style.left= game.paddle1.left + 'px';
game.paddle2.graphic.style.left= game.paddle2.left + 'px';
}
window.onload = init;
</script>
</body>
</html>