Created
November 22, 2015 10:10
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<!DOCTYPE html> | |
<html lang="ja"> | |
<head> | |
<meta charset="utf-8"> | |
<title>映画とJS</title> | |
<style> | |
#container { | |
text-align: center; | |
} | |
#mycanvas { | |
background: #ecf0f1; | |
cursor: crosshair; | |
} | |
</style> | |
</head> | |
<body> | |
<div id="container"> | |
<canvas id="mycanvas" width="750" height="500"> | |
Canvasに対応したブラウザを用意してください。 | |
</canvas> | |
</div> | |
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script> | |
<script> | |
var ctx; | |
var canvas = document.getElementById('mycanvas'); | |
ctx = canvas.getContext('2d'); | |
// 数字オブジェクトを作成する | |
var Number = function(x, y) { | |
// 数字の座標の位置 | |
this.x = 100; | |
this.y = 20; | |
// 数字の落下速度 | |
this.vy = 10; | |
// 数字の描画 | |
this.draw = function() { | |
ctx.font = '20px Verdana'; | |
ctx.fillStyle = '#000000'; | |
ctx.fillText('1', this.x, this.y); | |
} | |
// 数字の落下 | |
this.move = function() { | |
this.y += this.vy; | |
} | |
// キャンバスの初期化 | |
this.clear = function() { | |
ctx.fillStyle = '#ecf0f1'; | |
ctx.fillRect(0, 0, canvas.width, canvas.height); | |
} | |
} | |
// インスタンスの生成 | |
var n = new Number(); | |
//n.draw(); | |
// 数字の落下関数 | |
function update() { | |
setInterval(function() { | |
n.clear(); | |
n.draw(); | |
n.move(); | |
}, 1000); | |
} | |
// 数字の落下開始 | |
update(); | |
</script> | |
</body> | |
</html> |
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