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pyscript/examples/antigravity.html

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<html>
<head>
<title>Antigravity</title>
<meta charset="utf-8">
<link rel="icon" type="image/x-icon" href="./favicon.png">
<link rel="stylesheet" href="https://pyscript.net/latest/pyscript.css" />
<link rel="stylesheet" href="./assets/css/examples.css" />
<link rel="stylesheet" href="./assets/prism/prism.css" />
<script defer src="https://pyscript.net/latest/pyscript.js"></script>
<script defer src="./assets/prism/prism.js"></script>
</head>
<body>
<nav class="navbar" style="background-color: #000000;">
<div class="app-header">
<a href="/">
<img src="./logo.png" class="logo">
</a>
<a class="title" href="" style="color: #f0ab3c;">Antigravity</a>
</div>
</nav>
<section class="pyscript">
<py-config>
[[fetch]]
files = ["./antigravity.py"]
</py-config>
<b>Based on xkcd: antigravity https://xkcd.com/353/.</b>
<py-script>
import antigravity
antigravity.fly()
</py-script>
</section>
<section class="code">
<div id="view-code-button" role="button" aria-pressed="false" tabindex="0">View Code</div>
<div id="code-section" class="code-section-hidden">
<p>index.html</p>
<pre class="prism-code language-html">
<code class="language-html">
&lt;py-config&gt;
[[fetch]]
files = ["./antigravity.py"]
&lt;/py-config&gt;
&lt;py-script&gt;
import antigravity
antigravity.fly()
&lt;/py-script&gt;
</code>
</pre>
<p>antigravity.py</p>
<pre class="prism-code language-python">
<code class="language-python">
import random
import sys
from js import DOMParser, document, setInterval
from pyodide.ffi import create_proxy
from pyodide.http import open_url
class Antigravity:
url = "./antigravity.svg"
def __init__(self, target=None, interval=10, append=True, fly=False):
target = target or sys.stdout._out
self.target = (
document.getElementById(target) if isinstance(target, str) else target
)
doc = DOMParser.new().parseFromString(
open_url(self.url).read(), "image/svg+xml"
)
self.node = doc.documentElement
if append:
self.target.append(self.node)
else:
self.target.replaceChildren(self.node)
self.xoffset, self.yoffset = 0, 0
self.interval = interval
if fly:
self.fly()
def fly(self):
setInterval(create_proxy(self.move), self.interval)
def move(self):
char = self.node.getElementsByTagName("g")[1]
char.setAttribute("transform", f"translate({self.xoffset}, {-self.yoffset})")
self.xoffset += random.normalvariate(0, 1) / 20
if self.yoffset < 50:
self.yoffset += 0.1
else:
self.yoffset += random.normalvariate(0, 1) / 20
_auto = Antigravity(append=True)
fly = _auto.fly
</code>
</div>
</section>
</body>
<script>
const viewCodeButton = document.getElementById("view-code-button");
const codeSection = document.getElementById("code-section");
const handleClick = () => {
if (codeSection.classList.contains("code-section-hidden")) {
codeSection.classList.remove("code-section-hidden");
codeSection.classList.add("code-section-visible");
} else {
codeSection.classList.remove("code-section-visible");
codeSection.classList.add("code-section-hidden");
}
}
viewCodeButton.addEventListener("click", handleClick)
viewCodeButton.addEventListener("keydown", (e) => {
if (e.key === " " || e.key === "Enter" || e.key === "Spacebar") {
handleClick();
}
})
</script>
</html>