html5 - daha flash bir web?

Daha Flash bir web?

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● Ne sunulacak?● HTML5 mi? ● Yazılım projeleri mi?

VS?

● Adil mi?

İçerik

● Tarih● JavaScript● Canvas● Audio● WebSocket● Offline

Neden yeni bir HTML sürümü?

● oyun geliştirilmesi için mi?● video için mi?● 3d için mi?● ...

http://net.tutsplus.com/articles/general/a-brief-history-of-html5/

HTML5 Tarihi● 2004

○ WHATWG (Apple, Mozilla, Opera)● 2006

○ W3C XHTML● 2008

○ İlk versiyon○ Firefox 3, sonra diğerleri

● 2010○ Steve Jobs, Flash Andıçı

● 2014 ○ Final


W3C (HTML5 Tarihi)

● XHTML 2.0○ No Backward Compability!○ Strictly XML


WHAT WG

● 2004 W3C Workshop● Backward Compatible● Detailed Spec.

○ Non Strict HTML Parser


“The Web is, and should be, driven by technical merit, not consensus. The W3C pretends otherwise, and wastes a lot of time for it. The WHATWG

does not.” – Ian HicksonBenevolent Dictator for Life

<time> olayı


Jobs vs Adobe

● Kasım 2011 ○ Adobe: Mobil ve TV için Flash olmayacak

http://en.wikipedia.org/wiki/Adobe_Flash

HTML5 Bugün

● Youtube HTML5 test○ http://www.youtube.com/html5

● Mobile○ Amazon

HTML5 Tarayıcı Desteği

JavaScript ?

● Minecraft● Quake 3● Cut the rope

JS

Minecraft in JS

● Orjinal MC 17.5 Milyon sattı

JS

Quake in JShttp://media.tojicode.com/q3bsp/

JS

Cut The Ropehttp://www.cuttherope.ie/dev/

● Performance○ 37 - 62 FPS

JS

JavaScript ?for(i = 1; i <= 3; i++) {

print();

}

function print() {

for(i = 1; i <= 3; i++) {

console.log(i);

}

}

JS

JavaScript ? (var)

for(var i = 1; i <= 3; i++) {

print();

}

function print() {

for(i = 1; i <= 3; i++) {

console.log(i);

}

}

JS

JavaScript ? ( ?, var)for(i = 1; i <= 3; i++) {

print();

}

function print() {

for(var i = 1; i <= 3; i++) {

console.log(i);

}

}

JS

JavaScript ? (var, var)for(var i = 1; i <= 3; i++) {

print();

}

function print() {

for(var i = 1; i <= 3; i++) {

console.log(i);

}

}

JS

JavaScript ? (Tools)

● Chrome○ Developer Tools

● Ant Scripts

JS

Canvas

● Alt seviye çizim kütüphanesi● 2D● 3D

○ WebGL○ Three.js

Canvas (Context)<canvas id="canvas" width="800px" height="600px"/>

var canvas = document.getElementById("canvas");

var ctx = canvas.getContext("2d");

Canvas (Rectangle)

ctx.fillStyle = "red";

ctx.fillRect(50,50,400,300);

Canvas (State)for(var i=0; i<data.length; i++) {

ctx.save();

ctx.translate(40+i*100, 460-dp*4);

var dp = data[i];

ctx.fillRect(0,0,50,dp*4);

ctx.restore();

}

Canvas (Gradient)var grad = ctx.createLinearGradient(0, 0, 800, 600);

grad.addColorStop(0, "red");

grad.addColorStop(1, "yellow");

ctx.fillStyle = grad;

Canvas (Path)ctx.beginPath();

...

ctx.moveTo(x1,y1);

ctx.lineTo(x2,y2);

ctx.lineTo(x3,y3)

ctx.closePath();

Canvas (Image)var spaceImg = new Image();

spaceImg.src = 'space.png';

ctx.drawImage(spaceImg, 0, 0);

Canvas (Edit an Image)var img = new Image();

img.onload = function() {

ctx.drawImage(img,0,0);

var data =

ctx.getImageData(0,0,

canvas.width,canvas.height);

...

ctx.putImageData(data,0,0);

}

img.src = "space.png";

Canvas (Text)ctx.fillStyle = "white";

ctx.font = 16 + "pt Arial ";

ctx.fillText("fps :" + Math.floor(1000 / diffTime), 10, 20);

Canvas (Mouse Events)canvas.addEventListener('mousemove', onMousemove, false);

canvas.addEventListener('mousedown', onMouseclick, false);

function onMousemove(ev) {

var x, y;

if (ev.layerX || ev.layerX == 0) { // Firefox

x = ev.layerX;

y = ev.layerY;

} else if (ev.offsetX || ev.offsetX == 0) { // Opera

x = ev.offsetX;

y = ev.offsetY;

}

}

Canvas (Animation)window.requestAnimFrame = (function () {

return window.requestAnimationFrame ||

window.webkitRequestAnimationFrame ||

window.mozRequestAnimationFrame ||

window.oRequestAnimationFrame ||

window.msRequestAnimationFrame ||

function (callback) {

window.setTimeout(callback, 1000 / 60);

};

})();

window.requestAnimFrame(drawIt);

Audio

● 3D Positional Audio

Audio (Basic)var actx = new window.webkitAudioContext();

var request = new XMLHttpRequest();

request.open('GET', '/blast.wav', true);

request.responseType = 'arraybuffer';

request.onload = function (ev) {

actx.decodeAudioData(ev.target.response, function (buffer){

var source = actx.createBufferSource();

source.buffer = buffer;

source.connect(actx.destination);

source.noteOn(0);

});

};

request.send();

Audio (Gain)function playSource(buffer, gainVol, loop) {

var gnode = actx.createGainNode();


source.loop = loop;

source.buffer = buffer;

source.connect(gnode);

gnode.connect(actx.destination);

gnode.gain.value = gainVol;

source.noteOn(0);

}

Audio (AudioPannerNode)function playPositionalSource(holder, src, dest) {

var gnode = actx.createGainNode();


source.buffer = holder.src;

var panner = actx.createPanner();

panner.setPosition(src.x / 800, src.y / 600, 0);

panner.connect(gnode);

gnode.connect(actx.destination);

source.connect(panner);

actx.listener.setPosition(dest.x / 800, dest.y / 600, 0);

gnode.gain.value = holder.gain;

source.noteOn(0);

}

WebSocket

● Basit API● Fazladan Başlık Bilgisi Yok● Soket / Port Gerek● Sunucu Desteği

WebSocket (Callbacks)var connection = new WebSocket('ws://localhost:8080/play', ['text']);connection.onopen = function () {...}

connection.onerror = function (error) { console.log('WebSocket Error ' + error);}

connection.onmessage = function (e) { var jo = JSON.parse(e.data);...}

WebSocket (Send)function send(msg) { if(connection.readyState == 1) { connection.send(msg) }}

WebSocket (Jetty)

"Don't deploy your app. to Jetty, Deploy Jetty to your app."

WebSocket (WebSocketServlet)import org.eclipse.jetty.websocket.WebSocketServlet

public class WSGameServlet extends WebSocketServlet {

...

@Override

public WebSocket doWebSocketConnect(HttpServletRequest req,

String protocol) {

return new GameSocket(createNewPlayer(req), world);

}

}

WebSocket (WebSocket onOpen)import org.eclipse.jetty.websocket.WebSocket

public class GameSocket implements WebSocket,

WebSocket.OnTextMessage {

...

@Override

public void onOpen(Connection connection) {

this.connection = connection;

world.addSocket(this);

}

}

WebSocket (WebSocket onClose)import org.eclipse.jetty.websocket.WebSocket



...

@Override

public void onClose(int closeCode, String msg) {

world.removeSocket(this);

world.removePlayer(avatar.getId());

}

}

WebSocket (WebSocket onMessage)import org.eclipse.jetty.websocket.WebSocket



...

public void onMessage(String msg) {

try {

Map<String, String> attMap = getAttributeMap(msg);

String pathInfo = attMap.get("path");

if ("static".equals(pathInfo)) {

connection.sendMessage("static/" + staticGameMap);

} else if ("text".equals(pathInfo)) {

...

}

}

WebSocket (sockets)public class AxeWorld extends TimerTask implements World {

...

public final Set<GameSocket> sockets;

@Override public void addSocket(GameSocket gameSocket)...

@Override public void removeSocket(GameSocket gameSocket)...

@Override

public void run() {...

for (GameSocket gs : sockets) {

gs.sendMessage(msg);

...

3D

● WebGL○ experimental

● Three.js

3D (Three.js)

● https://github.com/mrdoob/three.js● High level● Renderers

○ Canvas○ WebGL○ SVG

3D (Three.js)

function init() {

camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 1, 10000 );

camera.position.z = 1000;

scene = new THREE.Scene();

geometry = new THREE.CubeGeometry( 200, 200, 200 );

material = new THREE.MeshBasicMaterial( { color: 0xff0000, wireframe: true } );

mesh = new THREE.Mesh( geometry, material );

scene.add( mesh );

renderer = new THREE.CanvasRenderer();

renderer.setSize( window.innerWidth, window.innerHeight );

document.body.appendChild( renderer.domElement );

}

https://github.com/mrdoob/three.js

3D (Three.js)

function animate() {

// note: three.js includes requestAnimationFrame shim

requestAnimationFrame( animate );

mesh.rotation.x += 0.01;

mesh.rotation.y += 0.02;

renderer.render( scene, camera );

}

https://github.com/mrdoob/three.js

3D (Three.js)

Storage

● Local

● Session

● Database

Storage (Local Storage)

● Cookies○ 4KB○ HTTP Headers

● 5 MB key/value

Storage (Local Storage)localStorage.commands = JSON.stringify(commands);

if (window.addEventListener) { window.addEventListener("storage", handle_storage, false);} else { window.attachEvent("onstorage", handle_storage);};

Storage (Session Storage)

● Oturum için

● sessionStorage

Storage (Database Storage)

● 5 MB'den fazlası

● Web SQL Database

Storage (IndexDB)

● Not yet

Application Cache

● Old Way Directives

● New Way Manifest

ApplicationCache (Cache Directives)

● HTTP

Application Cache (Manifest)

● Cache what?

● mime-type : text/cache-manifest

● CACHE, NETWORK, FALLBACK

Manifest<!DOCTYPE html><html manifest="cache.mf"><head>...

Manifest (CACHE)

http://www.html5rocks.com

CACHE MANIFEST

CACHE:

/favicon.ico

index.html

stylesheet.css

images/logo.png

scripts/main.js

Manifest (NETWORK)


# online:

NETWORK:

login.php

/myapi

http://api.twitter.com

Manifest (FALLBACK)


# static.html will be served if main.py is inaccessible

# offline.jpg will be served in place of all images in images/large/

# offline.html will be served in place of all other .html files

FALLBACK:

/main.py /static.html

images/large/ images/offline.jpg

*.html /offline.html

Teşekkürler

● Mert Çalışkan● Çağatay Çivici● Barış Bal

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html5 - daha flash bir web?

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