<!DOCTYPE HTML>
<html>
<head>
<style>
body {
margin: 0px;
padding: 0px;
}
</style>
</head>
<body>
<div id='container'></div>
<script src='../../dist/konva-dev.js'></script>
<script src='http://www.html5canvastutorials.com/lib/stats/stats.js'></script>
<script defer='defer'>
var lastTime = 0;
var width = window.innerWidth;
var height = window.innerHeight;
var wabbitTexture;
var bunnys = [];
var gravity = 0.75;
var maxX = width - 10;
var minX = 0;
var maxY = height - 10;
var minY = 0;
var startBunnyCount = 10;
var isAdding = false;
var count = 0;
var container;
var layer;
var stats;
var amount = 10;
var counter;
var stage = new Konva.Stage({
container: 'container',
width: width - 10,
height: height - 10,
});
layer = new Konva.FastLayer();
stage.add(layer);
stats = new Stats();
wabbitTexture = new Image();
wabbitTexture.onload = function() {
_handleTextureLoaded();
};
wabbitTexture.src = '../assets/bunny.png';
document.body.appendChild( stats.domElement );
stats.domElement.style.position = 'absolute';
stats.domElement.style.top = '0px';
window.requestAnimationFrame(update);
counter = document.createElement('div');
counter.className = 'counter';
counter.style.position = 'absolute';
counter.style.top = '50px';
document.body.appendChild(counter);
count = startBunnyCount;
counter.innerHTML = startBunnyCount + ' BUNNIES';
container = stage;
// stage.addChild(container);
stage.on('mousedown', function() {
isAdding = true;
});
stage.on('mouseup', function() {
isAdding = false;
});
document.addEventListener('touchstart', onTouchStart, true);
document.addEventListener('touchend', onTouchEnd, true);
function _handleTextureLoaded (event) {
for (var i = 0; i < startBunnyCount; i++)
{
var bunny = new Konva.Image({
image: wabbitTexture,
transformsEnabled: 'position',
hitGraphEnabled: false,
x : 10,
y : 10
});
bunny.speedX = Math.random() * 10;
bunny.speedY = (Math.random() * 10) - 5;
bunnys.push(bunny);
// bunny.cache();
layer.add(bunny);
bunny.cache();
layer.draw();
}
}
function onTouchStart(event){
isAdding = true;
}
function onTouchEnd(event){
isAdding = false;
}
function update(){
stats.begin();
if(isAdding) {
// add 10 at a time :)
for (var i = 0; i < amount; i++)
{
var bunny = new Konva.Image({
image: wabbitTexture,
transformsEnabled: 'position',
x : 0,
y : 0
});
bunny.speedX = Math.random() * 10;
bunny.speedY = (Math.random() * 10) - 5;
// bunny.cache();
bunnys.push(bunny);
layer.add(bunny);
bunny.cache();
count++;
}
counter.innerHTML = count + ' BUNNIES';
}
for (var i = 0; i < bunnys.length; i++) {
var bunny = bunnys[i];
bunny.setX(bunny.getX() + bunny.speedX);
bunny.setY(bunny.getY() + bunny.speedY);
bunny.speedY += gravity;
if (bunny.getX() > maxX - wabbitTexture.width)
{
bunny.speedX *= -1;
bunny.setX(maxX - wabbitTexture.width);
}
else if (bunny.getX() < minX)
{
bunny.speedX *= -1;
bunny.setX(minX);
}
if (bunny.getY() > maxY - wabbitTexture.height)
{
bunny.speedY *= -0.85;
bunny.setY(maxY - wabbitTexture.height);
if (Math.random() > 0.5)
{
bunny.speedY -= Math.random() * 6;
}
}
else if (bunny.getY() < minY)
{
bunny.speedY = 0;
bunny.setY(minY);
}
}
layer.drawScene();
requestAnimationFrame(update);
stats.end();
}
</script>
</body>
</html>