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body{
background: #1099bb;
color: #3b4347;
position: relative;
display: block;
height: 100%;
width: 100%;
}
canvas{
width: 100%;
height: auto;
}
// 表示するcanvasを用意
let app = new PIXI.Application(800,600,{backgroundColor : 0x1099bb});
document.body.appendChild(app.view);
//表示をする画像の数
let totalSprites = 100;
//パーティクルの設定
let sprites = new PIXI.particles.ParticleContainer(totalSprites, {
scale: true,
position: true
});
//ステージに反映
app.stage.addChild(sprites);
// 複数の画像を設定
let hayachi = [];
//画像分をtotalSprites回数分ループ
for (let i = 0; i < totalSprites; i++) {
// 画像の設定
let dude = PIXI.Sprite.fromImage('http://hayachi.github.io/images/hayachi-blue.png');
// 画像の中心地をきめる
dude.anchor.set(0.5);
// 画像のサイズのランダムにきめる
dude.scale.set(0.01 + Math.random() * 0.1);
// ランダムに散らす
dude.x = Math.random() * app.screen.width;
dude.y = Math.random() * app.screen.height;
// ランダムな速度を0〜2の間で作ります。
dude.speed = (200 + Math.random() * 0.5) * 0.5;
// 生成された画像の配列をpushして簡単にアクセスできるようにします
hayachi.push(dude);
// ループのデータを反映
sprites.addChild(dude);
}
//アニメーションの初期値値
let tick = 0;
//ステージの高さ
const HEIGHT = 620;
app.ticker.add(function() {
// 画像を繰り返し処理して位置を更新する
for (let i = 0; i < hayachi.length; i++) {
//配列を代入
let dude = hayachi[i];
//横の位置
dude.x += (Math.random() - 0.5) * 1 * dude.scale.x;
//縦の位置
dude.y += dude.scale.y * dude.speed;
//画面の一番下に行った時縦の位置をリセット、横の位置をランダムに配置
if (dude.y > HEIGHT) {
dude.y = -10;
dude.x += (Math.random() - 0.5) * 1 * dude.scale.x;
}
}
// ティッカーを増やす
tick += 0.1;
});
//------テキストの描画-----//
// スタイルを指定
let styleBig = new PIXI.TextStyle({
fontFamily: 'Comfortaa',
fontSize: 70,
fill: '#ffffff',
lineJoin: 'round',
stroke: '#1099bb',
strokeThickness: 30,
align: 'center',
wordWrapWidth: 1000,
wordWrap: true
});
let styleSmall = new PIXI.TextStyle({
fontFamily: 'Comfortaa',
fontSize: 40,
fill: '#ffffff',
lineJoin: 'round',
stroke: '#1099bb',
strokeThickness: 30,
align: 'center',
wordWrapWidth: 1000,
wordWrap: true
});
// スタイルを反映
let textBig = new PIXI.Text('Pixi.js', styleBig);
let textSmall = new PIXI.Text('Particle animation', styleSmall);
// テキストの位置を指定
textBig.x = 300;
textBig.y = 220;
textSmall.x = 200;
textSmall.y = 320;
// ステージに表示させる
app.stage.addChild(textBig);
app.stage.addChild(textSmall);
Also see: Tab Triggers