{"id":16818,"date":"2024-01-12T20:08:11","date_gmt":"2024-01-12T11:08:11","guid":{"rendered":"http:\/\/www.tyosuke20xx.com\/blog\/?p=16818"},"modified":"2024-01-12T20:11:31","modified_gmt":"2024-01-12T11:11:31","slug":"htmlcssjavascript-canvas","status":"publish","type":"post","link":"http:\/\/www.tyosuke20xx.com\/blog\/?p=16818","title":{"rendered":"HTMLCSSJavascript Canvas"},"content":{"rendered":"\n<p>index.html<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!DOCTYPE html&gt;\n&lt;html lang=&quot;ja&quot;&gt;\n&lt;head&gt;\n  &lt;meta charset=&quot;utf-8&quot;&gt;\n  &lt;title&gt;My Canvas&lt;\/title&gt;\n  &lt;link rel=&quot;stylesheet&quot; href=&quot;css\/styles.css&quot;&gt;\n&lt;\/head&gt;\n&lt;body&gt;\n  &lt;canvas width=&quot;600&quot; height=&quot;240&quot;&gt;\n    Canvas not supported.\n  &lt;\/canvas&gt;\n\n  &lt;script src=&quot;js\/main.js&quot;&gt;&lt;\/script&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;<\/code><\/pre><\/div>\n\n\n\n<p>css\/styles.css<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-css\" data-lang=\"CSS\"><code>body {\n  background: #222;\n}\ncanvas {\n  background: #fff;\n}<\/code><\/pre><\/div>\n\n\n\n<p>js\/main.js<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-js\" data-lang=\"JavaScript\"><code>&#39;use strict&#39;;\n\n{\n  let t = 0;\n  \n  function draw() {\n    const canvas = document.querySelector(&#39;canvas&#39;);\n    if (typeof canvas.getContext === &#39;undefined&#39;) {\n      return;\n    }\n    const ctx = canvas.getContext(&#39;2d&#39;);\n    \n    ctx.clearRect(0, 0, canvas.width, canvas.height);\n    \n    ctx.beginPath();\n    ctx.ellipse(100, 100, 40, 30, 0, 0, 2 * Math.PI);\n    ctx.fillStyle = &#39;black&#39;;\n    ctx.fill();\n    \n    ctx.beginPath();\n    ctx.ellipse( 80 + Math.sin(t \/ 30), 100, 8, 8, 0, 0, 2 * Math.PI);\n    ctx.ellipse(120 + Math.sin(t \/ 30), 100, 8, 8, 0, 0, 2 * Math.PI);\n    ctx.fillStyle = &#39;skyblue&#39;;\n    ctx.fill();\n    \n    t++;\n    setTimeout(draw, 10);\n }\n\n  draw();\n}<\/code><\/pre><\/div>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-c43fd8e3-fe8a-4116-8567-a4f94f516ce1\" href=\"http:\/\/www.tyosuke20xx.com\/blog\/wp-content\/uploads\/2024\/01\/sprite-1.png\">sprite-1<\/a><a href=\"http:\/\/www.tyosuke20xx.com\/blog\/wp-content\/uploads\/2024\/01\/sprite-1.png\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-c43fd8e3-fe8a-4116-8567-a4f94f516ce1\">\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/a><\/div>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-81c94763-a16f-4569-9d6b-f48e4469930e\" href=\"http:\/\/www.tyosuke20xx.com\/blog\/wp-content\/uploads\/2024\/01\/logo.png\">logo<\/a><a href=\"http:\/\/www.tyosuke20xx.com\/blog\/wp-content\/uploads\/2024\/01\/logo.png\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-81c94763-a16f-4569-9d6b-f48e4469930e\">\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>index.html css\/styles.css js\/main.js<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[81,80,78,4,6],"tags":[30,42,41],"class_list":["post-16818","post","type-post","status-publish","format-standard","hentry","category-css","category-html","category-javascript","category-programming","category-web","tag-css","tag-html","tag-javascript"],"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16818","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16818"}],"version-history":[{"count":3,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16818\/revisions"}],"predecessor-version":[{"id":16825,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16818\/revisions\/16825"}],"wp:attachment":[{"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16818"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.tyosuke20xx.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}