mirror of
https://github.com/konvajs/konva.git
synced 2025-04-05 20:48:28 +08:00
186 lines
5.1 KiB
HTML
186 lines
5.1 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<style>
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body {
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margin: 0px;
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padding: 0px;
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}
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</style>
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</head>
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<body>
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<div id='container'></div>
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<script src='../../dist/konva-dev.js'></script>
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<script src='http://www.html5canvastutorials.com/lib/stats/stats.js'></script>
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<script defer='defer'>
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var lastTime = 0;
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var width = window.innerWidth;
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var height = window.innerHeight;
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var wabbitTexture;
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var bunnys = [];
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var gravity = 0.75;
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var maxX = width - 10;
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var minX = 0;
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var maxY = height - 10;
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var minY = 0;
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var startBunnyCount = 10;
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var isAdding = false;
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var count = 0;
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var container;
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var layer;
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var stats;
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var amount = 10;
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var counter;
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var stage = new Konva.Stage({
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container: 'container',
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width: width - 10,
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height: height - 10,
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});
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layer = new Konva.FastLayer();
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stage.add(layer);
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stats = new Stats();
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wabbitTexture = new Image();
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wabbitTexture.onload = function() {
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_handleTextureLoaded();
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};
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wabbitTexture.src = '../assets/bunny.png';
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document.body.appendChild( stats.domElement );
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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window.requestAnimationFrame(update);
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counter = document.createElement('div');
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counter.className = 'counter';
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counter.style.position = 'absolute';
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counter.style.top = '50px';
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document.body.appendChild(counter);
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count = startBunnyCount;
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counter.innerHTML = startBunnyCount + ' BUNNIES';
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container = stage;
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// stage.addChild(container);
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stage.on('mousedown', function() {
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isAdding = true;
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});
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stage.on('mouseup', function() {
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isAdding = false;
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});
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document.addEventListener('touchstart', onTouchStart, true);
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document.addEventListener('touchend', onTouchEnd, true);
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function _handleTextureLoaded (event) {
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for (var i = 0; i < startBunnyCount; i++)
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{
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var bunny = new Konva.Image({
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image: wabbitTexture,
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transformsEnabled: 'position',
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hitGraphEnabled: false,
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x : 10,
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y : 10
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});
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bunny.speedX = Math.random() * 10;
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bunny.speedY = (Math.random() * 10) - 5;
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bunnys.push(bunny);
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// bunny.cache();
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layer.add(bunny);
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bunny.cache();
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layer.draw();
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}
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}
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function onTouchStart(event){
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isAdding = true;
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}
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function onTouchEnd(event){
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isAdding = false;
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}
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function update(){
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stats.begin();
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if(isAdding) {
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// add 10 at a time :)
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for (var i = 0; i < amount; i++)
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{
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var bunny = new Konva.Image({
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image: wabbitTexture,
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transformsEnabled: 'position',
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x : 0,
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y : 0
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});
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bunny.speedX = Math.random() * 10;
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bunny.speedY = (Math.random() * 10) - 5;
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// bunny.cache();
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bunnys.push(bunny);
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layer.add(bunny);
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bunny.cache();
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count++;
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}
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counter.innerHTML = count + ' BUNNIES';
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}
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for (var i = 0; i < bunnys.length; i++) {
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var bunny = bunnys[i];
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bunny.setX(bunny.getX() + bunny.speedX);
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bunny.setY(bunny.getY() + bunny.speedY);
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bunny.speedY += gravity;
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if (bunny.getX() > maxX - wabbitTexture.width)
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{
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bunny.speedX *= -1;
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bunny.setX(maxX - wabbitTexture.width);
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}
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else if (bunny.getX() < minX)
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{
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bunny.speedX *= -1;
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bunny.setX(minX);
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}
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if (bunny.getY() > maxY - wabbitTexture.height)
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{
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bunny.speedY *= -0.85;
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bunny.setY(maxY - wabbitTexture.height);
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if (Math.random() > 0.5)
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{
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bunny.speedY -= Math.random() * 6;
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}
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}
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else if (bunny.getY() < minY)
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{
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bunny.speedY = 0;
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bunny.setY(minY);
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}
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}
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layer.drawScene();
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requestAnimationFrame(update);
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stats.end();
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}
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</script>
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</body>
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</html> |