HTML Platform Game Code: Create Your Own Jumping Game
<!DOCTYPE html>
<html>
<head>
<title>Platformer</title>
<style>
body {
background-color: #008000;
}
#game {
border: 3px solid #000000;
width: 800px;
height: 600px;
margin: auto;
}
#player {
position: absolute;
width: 50px;
height: 50px;
background-color: #000000;
left: 0;
top: 0;
}
#platform {
position: absolute;
width: 500px;
height: 30px;
background-color: #cccccc;
left: 0;
top: 500px;
}
</style>
</head>
<body>
<div id='game'>
<div id='player'></div>
<div id='platform'></div>
</div>
<script>
document.onkeydown = move;
var player = document.getElementById('player');
var platform = document.getElementById('platform');
var speed = 10;
function move(e) {
switch(e.keyCode) {
case 37:
//left key
player.style.left = (player.offsetLeft - speed) + 'px';
break;
case 38:
//up key
player.style.top = (player.offsetTop - speed) + 'px';
break;
case 39:
//right key
player.style.left = (player.offsetLeft + speed) + 'px';
break;
case 40:
//down key
player.style.top = (player.offsetTop + speed) + 'px';
break;
}
if (player.offsetTop + player.offsetHeight >= platform.offsetTop) {
player.style.top = (platform.offsetTop - player.offsetHeight) + 'px';
}
}
</script>
</body>
</html>
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