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'Anti-collision' system, as demonstrated in this YouTube video

Picture of various sized balls missing one another

Usage

The following keyboard shortcuts are available

  • E toggle v-sync. V-sync limits the number of frames per second, so disabling it speeds up the simulation.
  • A toggle the visibility of the traces.
  • space toggle slow-motion.
  • R reset the view.
  • esc close the application.

You can zoom into the simulation by scrolling, and move around by dragging with the mouse.

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1.4k stars

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - johnBuffer/NoCol: Trajectories finder · GitHub
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include
include
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sounds
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CMakeLists.txt
CMakeLists.txt
LICENSE
LICENSE
README.md
README.md
Repository files navigation
'Anti-collision' system, as demonstrated in this YouTube video
Picture of various sized balls missing one another
Usage
The following keyboard shortcuts are available
  • E toggle v-sync. V-sync limits the number of frames per second, so disabling it speeds up the simulation.
  • A toggle the visibility of the traces.
  • space toggle slow-motion.
  • R reset the view.
  • esc close the application.
You can zoom into the simulation by scrolling, and move around by dragging with the mouse.
About
Trajectories finder
Resources
Readme
License
Activity
Stars
1.4k stars
Watchers
30 watching
Forks
105 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - johnBuffer/NoCol: Trajectories finder · GitHub
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include
include
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sounds
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CMakeLists.txt
CMakeLists.txt
LICENSE
LICENSE
README.md
README.md
Repository files navigation
'Anti-collision' system, as demonstrated in this YouTube video
Picture of various sized balls missing one another
Usage
The following keyboard shortcuts are available
  • E toggle v-sync. V-sync limits the number of frames per second, so disabling it speeds up the simulation.
  • A toggle the visibility of the traces.
  • space toggle slow-motion.
  • R reset the view.
  • esc close the application.
You can zoom into the simulation by scrolling, and move around by dragging with the mouse.
About
Trajectories finder
Resources
Readme
License
Activity
Stars
1.4k stars
Watchers
30 watching
Forks
105 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - johnBuffer/NoCol: Trajectories finder · GitHub
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NameName
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include
include
sounds
sounds
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
CMakeLists.txt
CMakeLists.txt
LICENSE
LICENSE
README.md
README.md
Repository files navigation
'Anti-collision' system, as demonstrated in this YouTube video
Picture of various sized balls missing one another
Usage
The following keyboard shortcuts are available
  • E toggle v-sync. V-sync limits the number of frames per second, so disabling it speeds up the simulation.
  • A toggle the visibility of the traces.
  • space toggle slow-motion.
  • R reset the view.
  • esc close the application.
You can zoom into the simulation by scrolling, and move around by dragging with the mouse.
About
Trajectories finder
Resources
Readme
License
Activity
Stars
1.4k stars
Watchers
30 watching
Forks
105 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - johnBuffer/NoCol: Trajectories finder · GitHub
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NameName
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include
include
sounds
sounds
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
CMakeLists.txt
CMakeLists.txt
LICENSE
LICENSE
README.md
README.md
Repository files navigation
'Anti-collision' system, as demonstrated in this YouTube video
Picture of various sized balls missing one another
Usage
The following keyboard shortcuts are available
  • E toggle v-sync. V-sync limits the number of frames per second, so disabling it speeds up the simulation.
  • A toggle the visibility of the traces.
  • space toggle slow-motion.
  • R reset the view.
  • esc close the application.
You can zoom into the simulation by scrolling, and move around by dragging with the mouse.
About
Trajectories finder
Resources
Readme
License
Activity
Stars
1.4k stars
Watchers
30 watching
Forks
105 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - johnBuffer/NoCol: Trajectories finder · GitHub
Skip to content
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Latest commit
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29 Commits
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NameName
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include
include
sounds
sounds
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
CMakeLists.txt
CMakeLists.txt
LICENSE
LICENSE
README.md
README.md
Repository files navigation
'Anti-collision' system, as demonstrated in this YouTube video
Picture of various sized balls missing one another
Usage
The following keyboard shortcuts are available
  • E toggle v-sync. V-sync limits the number of frames per second, so disabling it speeds up the simulation.
  • A toggle the visibility of the traces.
  • space toggle slow-motion.
  • R reset the view.
  • esc close the application.
You can zoom into the simulation by scrolling, and move around by dragging with the mouse.
About
Trajectories finder
Resources
Readme
License
Activity
Stars
1.4k stars
Watchers
30 watching
Forks
105 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
})();
GitHub - johnBuffer/NoCol: Trajectories finder · GitHub
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Latest commit
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29 Commits
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NameName
Last commit message
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include
include
sounds
sounds
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
CMakeLists.txt
CMakeLists.txt
LICENSE
LICENSE
README.md
README.md
Repository files navigation
'Anti-collision' system, as demonstrated in this YouTube video
Picture of various sized balls missing one another
Usage
The following keyboard shortcuts are available
  • E toggle v-sync. V-sync limits the number of frames per second, so disabling it speeds up the simulation.
  • A toggle the visibility of the traces.
  • space toggle slow-motion.
  • R reset the view.
  • esc close the application.
You can zoom into the simulation by scrolling, and move around by dragging with the mouse.
About
Trajectories finder
Resources
Readme
License
Activity
Stars
1.4k stars
Watchers
30 watching
Forks
105 forks
Report repository
Releases
Packages
Used by
Contributors
Languages