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<canvas id="myCanvas"></canvas>
<div id="attention" class="">Please Drag the Canvas!</div>
body {
background-image: url("http://s.hswstatic.com/gif/pheasants-forever-1.jpg");
overflow: hidden;
}
#myCanvas {
position: absolute;
top: 0;
left: 0;
background: #000;
opacity:0.6;
cursor: crosshair;
}
#attention {
font-family: 'Source Sans Pro', sans-serif;
position: absolute;
bottom: 20px;
font-size: 32px;
left: 0;
width: 100%;
text-align: center;
color: #fff;
pointer-events: none;
transition: transform 0.75s;
transform: translate(0, 60px);
}
#attention.show {
transform: translate(0, 0px);
}
///<reference path="libs/easeljs/easeljs.d.ts" />
var __extends = this.__extends || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
__.prototype = b.prototype;
d.prototype = new __();
};
window.onload = function () {
new project.Main();
};
var project;
(function (project) {
/** 1フレーム間に発生させる Particle 数 */
var NUM_PARTICLES = 6;
/**
* パーティクルデモのメインクラスです。
* @class project.Main
*/
var Main = (function () {
/**
* @constructor
*/
function Main() {
var _this = this;
// 初期設定
this.stage = new createjs.Stage(document.getElementById("myCanvas"));
if (createjs.Touch.isSupported()) {
createjs.Touch.enable(this.stage);
}
// パーティクルサンプルを作成
var sample = new ParticleSample();
this.stage.addChild(sample);
// Tickerを作成
createjs.Ticker.setFPS(60);
createjs.Ticker.timingMode = createjs.Ticker.RAF;
createjs.Ticker.on("tick", this.handleTick, this);
// リサイズイベント
this.handleResize();
window.addEventListener("resize", function () {
_this.handleResize();
});
}
/**
* エンターフレームイベント
*/
Main.prototype.handleTick = function () {
// create residual image effect
this.stage.update();
};
/**
* リサイズイベント
*/
Main.prototype.handleResize = function () {
this.stage.canvas.width = window.innerWidth;
this.stage.canvas.height = window.innerHeight;
};
return Main;
})();
project.Main = Main;
/**
* 大量のパーティクルを発生させてみた
* マウスを押してる間でてくるよ
* @see http://wonderfl.net/c/4WjT
* @class demo.ParticleSample
*/
var ParticleSample = (function (_super) {
__extends(ParticleSample, _super);
function ParticleSample() {
var _this = this;
_super.call(this);
/** マウスがプレスされた状態であるかどうか。 */
this._isDown = true;
this._bg = new createjs.Shape();
this.addChild(this._bg);
// パーティクルエミッター
this._emitter = new ParticleEmitter();
this.addChild(this._emitter.container);
// ライン描写
this._lines = new createjs.Shape();
this._lines.compositeOperation = "lighter";
this.addChild(this._lines);
this._linePoint = [];
// 影
this._shadow = new createjs.Bitmap("imgs/Shadow.png");
this.addChild(this._shadow);
this.on("tick", this.enterFrameHandler, this);
this.on("mousedown", this.mouseDown, this);
this.on("pressup", this.mouseUp, this);
this.handleResize();
window.addEventListener("resize", function () {
_this.handleResize();
});
var sx = window.innerWidth / 2;
var sy = window.innerHeight / 2;
this._pointAutoMotion = new createjs.Point(sx, sy);
this._isAutoAnimation = true;
var points = GraphicUtil.createStartPoints(window.innerWidth / 3, sx, sy);
this._emitter.x = points[0].x;
this._emitter.y = points[0].y;
var tw = createjs.Tween.get(this._pointAutoMotion);
for (var i = 0; i < 3; i++) {
for (var j = 0; j < points.length; j++) {
tw.to(points[j], 300, createjs.Ease.quartInOut);
}
}
tw.call(function () {
_this._isAutoAnimation = false;
_this._isDown = false;
document.getElementById("attention").classList.add("show");
});
}
/**
* エンターフレームイベント
* @param event
*/
ParticleSample.prototype.enterFrameHandler = function (event) {
if (this._isAutoAnimation == true) {
this._emitter.latestX = this._pointAutoMotion.x;
this._emitter.latestY = this._pointAutoMotion.y;
}
else {
this._emitter.latestX = this.getStage().mouseX;
this._emitter.latestY = this.getStage().mouseY;
}
this._emitter.update();
if (this._isDown == true) {
this.createParticle();
}
// 背景
var color1 = createjs.Graphics.getHSL(new Date().getTime() / 40, 80, 60);
var color2 = createjs.Graphics.getHSL((new Date().getTime() + 40 * 60) / 40, 90, 80);
this._bg.graphics.clear().beginLinearGradientFill([color1, color2], [0, 1], 0, 0, 0, window.innerHeight).drawRect(0, 0, window.innerWidth, window.innerHeight);
this.updateLines();
};
/** ラインを描写更新します。 */
ParticleSample.prototype.updateLines = function () {
if (this._isDown) {
this._linePoint.push({
x: this._emitter.x,
y: this._emitter.y,
vx: this._emitter.vx,
vy: this._emitter.vy
});
}
else {
this._linePoint.shift();
}
// Emitterの状態に応じて線を描く
this._lines.graphics.clear();
var max = this._linePoint.length - 1;
var LW = 1;
var LMAX = 6;
for (var i = 0; i < max; i++) {
var p1 = this._linePoint[i];
var p2 = this._linePoint[i + 1];
// Emitterの状態に応じて線を描く
this._lines.graphics.setStrokeStyle(3).beginStroke(createjs.Graphics.getRGB(255, 255, 255, i / max * 0.2)).moveTo(p1.x, p1.y).lineTo(p2.x, p2.y);
for (var j = 0; j < LMAX; j++) {
var sx = p1.x + p1.vx * LW * (j - LMAX / 2);
var sy = p1.y + p1.vy * LW * (j - LMAX / 2);
var ex = p2.x + p2.vx * LW * (j - LMAX / 2);
var ey = p2.y + p2.vy * LW * (j - LMAX / 2);
// Emitterの状態に応じて線を描く
this._lines.graphics.setStrokeStyle(Math.abs(LMAX - j + LMAX / 2) / 2).beginStroke(createjs.Graphics.getRGB(255, 255, 255, i / max * 0.1)).moveTo(sx, sy).lineTo(ex, ey);
}
}
var deleteNum = (this._isAutoAnimation == true) ? 100 : 20;
if (max > deleteNum) {
// 一回削る
this._linePoint.shift();
// まだ多ければ2個目も削る
if (this._linePoint.length > deleteNum) {
this._linePoint.shift();
}
}
};
ParticleSample.prototype.mouseDown = function (event) {
this._isDown = true;
};
ParticleSample.prototype.mouseUp = function (event) {
this._isDown = false;
};
ParticleSample.prototype.createParticle = function () {
this._emitter.emit(this.getStage().mouseX, this.getStage().mouseY);
};
/** 画面サイズが更新されたときのハンドラーです。 */
ParticleSample.prototype.handleResize = function () {
this._shadow.scaleX = (window.innerWidth / 1024);
this._shadow.scaleY = (window.innerHeight / 1024);
};
return ParticleSample;
})(createjs.Container);
project.ParticleSample = ParticleSample;
/**
* パーティクル発生装置。マウス座標から速度を計算する。
* @class project.Emitter
*/
var Emitter = (function () {
/**
* @constructor
*/
function Emitter() {
/** 速度(X方向) */
this.vy = 0;
/** 速度(Y方向) */
this.x = 0;
/** マウスのX座標 */
this.latestY = 0;
/** マウスのY座標 */
this.latestX = 0;
/** パーティクル発生のX座標 */
this.y = 0;
/** パーティクル発生のY座標 */
this.vx = 0;
}
/**
* パーティクルエミッターの計算を行います。この計算によりマウスの引力が計算されます。
* @method
*/
Emitter.prototype.update = function () {
var dx = this.latestX - this.x;
var dy = this.latestY - this.y;
var d = Math.sqrt(dx * dx + dy * dy) * 0.2;
var rad = Math.atan2(dy, dx);
this.vx += Math.cos(rad) * d;
this.vy += Math.sin(rad) * d;
this.vx *= 0.4;
this.vy *= 0.4;
this.x += this.vx;
this.y += this.vy;
};
return Emitter;
})();
/**
* パーティクルエミッター
* @class project.ParticleEmitter
*/
var ParticleEmitter = (function (_super) {
__extends(ParticleEmitter, _super);
/**
* @constructor
*/
function ParticleEmitter() {
_super.call(this);
/** 1フレーム間に発生させる Particle 数 */
this.numParticles = NUM_PARTICLES;
this.PRE_CACHE_PARTICLES = 300;
this.container = new createjs.Container();
this._particleActive = [];
this._particlePool = [];
for (var i = 0; i < this.PRE_CACHE_PARTICLES; i++) {
this._particlePool.push(new Particle());
}
}
/**
* パーティクルを発生させます。
* @param {number} x パーティクルの発生座標
* @param {number} y パーティクルの発生座標
* @method
*/
ParticleEmitter.prototype.emit = function (x, y) {
for (var i = 0; i < this.numParticles; i++) {
this.getNewParticle(x, y);
}
};
/**
* パーティクルを更新します。
* @method
*/
ParticleEmitter.prototype.update = function () {
_super.prototype.update.call(this);
for (var i = 0; i < this._particleActive.length; i++) {
var p = this._particleActive[i];
if (!p.getIsDead()) {
if (p.y >= window.innerHeight) {
p.vy *= -0.8;
p.y = window.innerHeight;
}
else if (p.y <= 0) {
p.vy *= -0.8;
p.y = 0;
}
if (p.x >= window.innerWidth) {
p.vx *= -0.8;
p.y = window.innerWidth;
}
else if (p.x <= 0) {
p.vx *= -0.8;
p.x = 0;
}
p.update();
}
else {
this.removeParticle(p);
}
}
};
/**
* パーティクルを追加します。
* @param {THREE.Vector3} emitPoint
* @method
*/
ParticleEmitter.prototype.getNewParticle = function (emitX, emitY) {
var p = this.fromPool();
p.resetParameters(this.x, this.y, this.vx, this.vy);
this._particleActive.push(p);
this.container.addChild(p);
return p;
};
/**
* パーティクルを削除します。
* @param {Particle} particle
* @method
*/
ParticleEmitter.prototype.removeParticle = function (p) {
this.container.removeChild(p);
var index = this._particleActive.indexOf(p);
if (index > -1) {
this._particleActive.splice(index, 1);
}
this.toPool(p);
};
/**
* アクティブなパーティクルを取り出します。
* @returns {project.Particle[]}
* @method
*/
ParticleEmitter.prototype.getActiveParticles = function () {
return this._particleActive;
};
/**
* プールからインスタンスを取り出します。
* プールになければ新しいインスタンスを作成します。
* @returns {project.Particle}
* @method
*/
ParticleEmitter.prototype.fromPool = function () {
if (this._particlePool.length > 0)
return this._particlePool.shift();
else
return new Particle();
};
/**
* プールにインスタンスを格納します。
* @param {project.Particle}
* @method
*/
ParticleEmitter.prototype.toPool = function (particle) {
this._particlePool.push(particle);
};
return ParticleEmitter;
})(Emitter);
/**
* @class demo.Particle
*/
var Particle = (function (_super) {
__extends(Particle, _super);
/**
* コンストラクタ
* @constructor
*/
function Particle() {
_super.call(this);
var size = Math.random() * Math.random() * Math.random() * 120 + 3;
this.size = size;
var colorHsl = createjs.Graphics.getHSL(160 + 20 * Math.random(), 0 + Math.random() * 20, 50 + Math.random() * 50);
this.graphics.clear();
if (Math.random() < 0.5) {
// もやっとした円
this.graphics.beginRadialGradientFill([colorHsl, "#000000"], [0.0, 0.5], 0, 0, this.size / 10, 0, 0, this.size);
}
else if (Math.random() < 0.5) {
// キリッとした円
this.graphics.beginFill(colorHsl);
}
else {
// 輪郭だけの円
this.graphics.setStrokeStyle(2).beginStroke(createjs.Graphics.getRGB(255, 255, 255));
}
this.graphics.drawCircle(0, 0, this.size);
this.graphics.endFill();
// 大量のオブジェクトを重ねるとおかしくなる
this.compositeOperation = "lighter";
this.mouseEnabled = false;
var padding = 2;
this.cache(-this.size - padding, -this.size - padding, this.size * 2 + padding * 2, this.size * 2 + padding * 2);
this._destroy = true;
}
/**
* パーティクルをリセットします。
* @param {createjs.Point} point
* @param {number} vx
* @param {number} vy
*/
Particle.prototype.resetParameters = function (emitX, emitY, vx, vy) {
this.x = emitX;
this.y = emitY;
this.vx = vx * 0.5 + (Math.random() - 0.5) * 10;
this.vy = vy * 0.5 + (Math.random() - 0.5) * 10;
this.life = Math.random() * Math.random() * 120 + 4;
this._count = 0;
this._destroy = false;
this.alpha = 1.0;
this.scaleX = this.scaleY = 1.0;
};
/**
* パーティクル個別の内部計算を行います。
* @method
*/
Particle.prototype.update = function () {
this.x += this.vx;
this.y += this.vy;
this._count++;
var maxD = (1 - this._count / this.life * 1 / 3);
this.alpha = Math.random() * 0.6 + 0.4;
this.scaleX = this.scaleY = maxD;
// 死亡フラグ
if (this.life < this._count) {
this._destroy = true;
this.parent.removeChild(this);
}
};
/**
* パーティクルが死んでいるかどうかを確認します。
* @returns {boolean}
* @method
*/
Particle.prototype.getIsDead = function () {
return this._destroy;
};
return Particle;
})(createjs.Shape);
var GraphicUtil = (function () {
function GraphicUtil() {
}
/**
* 五芒星の頂点座標を計算します。
* @param radius {number} 半径
* @returns {{x:number; y:number;}[]}
*/
GraphicUtil.createStartPoints = function (radius, offsetX, offsetY) {
//五芒星の時の角度
var c1 = GraphicUtil.createCordinate(radius, -90, offsetX, offsetY);
var c2 = GraphicUtil.createCordinate(radius, -234, offsetX, offsetY);
var c3 = GraphicUtil.createCordinate(radius, -18, offsetX, offsetY);
var c4 = GraphicUtil.createCordinate(radius, -162, offsetX, offsetY);
var c5 = GraphicUtil.createCordinate(radius, -306, offsetX, offsetY);
return [c1, c2, c3, c4, c5];
};
GraphicUtil.createCordinate = function (radius, angle, offsetX, offsetY) {
var x = radius * Math.cos(angle / 180 * Math.PI);
var y = radius * Math.sin(angle / 180 * Math.PI);
return {
"x": x + offsetX,
"y": y + offsetY
};
};
return GraphicUtil;
})();
})(project || (project = {}));
Also see: Tab Triggers