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間違い探し
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<title>間違いさがしゲーム</title> | |
<meta name="twitter:card" content="summary_large_image" /> | |
<meta property="og:title" content="株式会社X-HACK" /> | |
<meta | |
property="og:description" | |
content="間違い探しゲームです" | |
/> | |
<meta | |
property="og:image" | |
content="https://js-hack.s3-ap-northeast-1.amazonaws.com/%E9%96%93%E9%81%95%E3%81%84+%E3%81%95%E3%81%8B%E3%82%99%E3%81%97.png" | |
/> | |
<meta charset="UTF-8" /> | |
<meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
<style> | |
body { | |
margin: 0 auto; | |
width: 100%; | |
max-width: 500px; | |
} | |
.content { | |
width: 100%; | |
} | |
.center { | |
text-align: center; | |
} | |
.canvas-wrap { | |
width: 375px; | |
margin: 0 auto; | |
} | |
.input-data { | |
text-align: right; | |
} | |
.mt5 { | |
max-width: 100%; | |
margin: 5px 10px; | |
} | |
</style> | |
</head> | |
<body> | |
<div class="center"> | |
<h1 class="center">間違い探し生成</h1> | |
</div> | |
<div class="canvas-wrap"> | |
<canvas | |
id="canvas" | |
class="center" | |
width="375" | |
height="375" | |
></canvas> | |
</div> | |
<div class="input-data mt5"> | |
<div> | |
<label>表示する文字</label> | |
<input id="messageText1" type="text" placeholder="文字1" value="小" maxlength="1"/> | |
</div> | |
<div> | |
<label>紛らわしい文字</label> | |
<input id="messageText2" type="text" placeholder="文字2" value="大" maxlength="1"/> | |
</div> | |
</div> | |
<div class="center mt5"> | |
<button onclick="drawImage()">間違い探しを生成</button> | |
</div> | |
<script> | |
const messageText1 = document.getElementById("messageText1"); | |
const messageText2 = document.getElementById("messageText2"); | |
// canvas要素を取得 | |
const canvas = document.getElementById("canvas"); | |
// canvasを操作する機能を持った、オブジェクトを取り出す | |
const ctx = canvas.getContext("2d"); | |
// srcプロパティに画像の取得先のパスをセットする | |
function drawImage(text1, text2) { | |
// 表示をクリア | |
ctx.clearRect(0, 0, 375, 375); | |
// 文字を埋め込む時の大きさとフォント | |
ctx.font = `20px sans-serif`; | |
let rNum = Math.floor(Math.random() * 121); | |
let counter = 0; | |
for (let i = 0; i < 11; i++) { | |
for (let j = 0; j < 11; j++) { | |
if (rNum === counter) { | |
ctx.fillText(messageText1.value, 25 + 30 * i, 38 + 30 * j); | |
flg = true; | |
} else { | |
ctx.fillText(messageText2.value, 25 + 30 * i, 38 + 30 * j); | |
} | |
counter += 1; | |
} | |
} | |
} | |
</script> | |
</body> | |
</html> |
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