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Fantasy map generator

This is code for generating fantasy maps, using the algorithm behind @unchartedatlas. For more details, see these notes.

Dependencies

This code depends on the following:

Support, licensing, ongoing development

This project is, from my perspective, finished.

The code is available under the MIT license, so you can fork it, improve it, learn from it, build upon it. However, I have no interest in maintaining it as an ongoing open source project, nor in providing support for it. Pull requests will be either ignored or closed.

If you do make something interesting with this code, please do still let me know! I'm sorry that I can't provide any support, but I am still genuinely interested in seeing creative applications of the code.

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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 - dcortex/terrain: Fantasy map generator · GitHub
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Fantasy map generator
This is code for generating fantasy maps, using the algorithm behind @unchartedatlas. For more details, see these notes.
Dependencies
This code depends on the following:
Support, licensing, ongoing development
This project is, from my perspective, finished.
The code is available under the MIT license, so you can fork it,
improve it, learn from it, build upon it. However, I have no interest in
maintaining it as an ongoing open source project, nor in providing support for
it. Pull requests will be either ignored or closed.
If you do make something interesting with this code, please do still let me know! I'm sorry that I can't provide any support, but I am still genuinely interested in seeing creative applications of the code.
About
Fantasy map generator
Resources
Readme
License
Activity
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0 stars
Watchers
1 watching
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0 forks
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, '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 - dcortex/terrain: Fantasy map generator · GitHub
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README.md
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Fantasy map generator
This is code for generating fantasy maps, using the algorithm behind @unchartedatlas. For more details, see these notes.
Dependencies
This code depends on the following:
Support, licensing, ongoing development
This project is, from my perspective, finished.
The code is available under the MIT license, so you can fork it,
improve it, learn from it, build upon it. However, I have no interest in
maintaining it as an ongoing open source project, nor in providing support for
it. Pull requests will be either ignored or closed.
If you do make something interesting with this code, please do still let me know! I'm sorry that I can't provide any support, but I am still genuinely interested in seeing creative applications of the code.
About
Fantasy map generator
Resources
Readme
License
Activity
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0 stars
Watchers
1 watching
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0 forks
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, '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 - dcortex/terrain: Fantasy map generator · GitHub
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NameName
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LICENSE.md
LICENSE.md
README.md
README.md
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terrain.js
Repository files navigation
Fantasy map generator
This is code for generating fantasy maps, using the algorithm behind @unchartedatlas. For more details, see these notes.
Dependencies
This code depends on the following:
Support, licensing, ongoing development
This project is, from my perspective, finished.
The code is available under the MIT license, so you can fork it,
improve it, learn from it, build upon it. However, I have no interest in
maintaining it as an ongoing open source project, nor in providing support for
it. Pull requests will be either ignored or closed.
If you do make something interesting with this code, please do still let me know! I'm sorry that I can't provide any support, but I am still genuinely interested in seeing creative applications of the code.
About
Fantasy map generator
Resources
Readme
License
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
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, '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 - dcortex/terrain: Fantasy map generator · GitHub
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README.md
README.md
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Repository files navigation
Fantasy map generator
This is code for generating fantasy maps, using the algorithm behind @unchartedatlas. For more details, see these notes.
Dependencies
This code depends on the following:
Support, licensing, ongoing development
This project is, from my perspective, finished.
The code is available under the MIT license, so you can fork it,
improve it, learn from it, build upon it. However, I have no interest in
maintaining it as an ongoing open source project, nor in providing support for
it. Pull requests will be either ignored or closed.
If you do make something interesting with this code, please do still let me know! I'm sorry that I can't provide any support, but I am still genuinely interested in seeing creative applications of the code.
About
Fantasy map generator
Resources
Readme
License
Activity
Stars
0 stars
Watchers
1 watching
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0 forks
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, '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 - dcortex/terrain: Fantasy map generator · GitHub
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Repository files navigation
Fantasy map generator
This is code for generating fantasy maps, using the algorithm behind @unchartedatlas. For more details, see these notes.
Dependencies
This code depends on the following:
Support, licensing, ongoing development
This project is, from my perspective, finished.
The code is available under the MIT license, so you can fork it,
improve it, learn from it, build upon it. However, I have no interest in
maintaining it as an ongoing open source project, nor in providing support for
it. Pull requests will be either ignored or closed.
If you do make something interesting with this code, please do still let me know! I'm sorry that I can't provide any support, but I am still genuinely interested in seeing creative applications of the code.
About
Fantasy map generator
Resources
Readme
License
Activity
Stars
0 stars
Watchers
1 watching
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0 forks
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, '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); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - dcortex/terrain: Fantasy map generator · GitHub
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LICENSE.md
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README.md
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Fantasy map generator
This is code for generating fantasy maps, using the algorithm behind @unchartedatlas. For more details, see these notes.
Dependencies
This code depends on the following:
Support, licensing, ongoing development
This project is, from my perspective, finished.
The code is available under the MIT license, so you can fork it,
improve it, learn from it, build upon it. However, I have no interest in
maintaining it as an ongoing open source project, nor in providing support for
it. Pull requests will be either ignored or closed.
If you do make something interesting with this code, please do still let me know! I'm sorry that I can't provide any support, but I am still genuinely interested in seeing creative applications of the code.
About
Fantasy map generator
Resources
Readme
License
Activity
Stars
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1 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - dcortex/terrain: Fantasy map generator · GitHub
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LICENSE.md
README.md
README.md
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terrain.js
Repository files navigation
Fantasy map generator
This is code for generating fantasy maps, using the algorithm behind @unchartedatlas. For more details, see these notes.
Dependencies
This code depends on the following:
Support, licensing, ongoing development
This project is, from my perspective, finished.
The code is available under the MIT license, so you can fork it,
improve it, learn from it, build upon it. However, I have no interest in
maintaining it as an ongoing open source project, nor in providing support for
it. Pull requests will be either ignored or closed.
If you do make something interesting with this code, please do still let me know! I'm sorry that I can't provide any support, but I am still genuinely interested in seeing creative applications of the code.
About
Fantasy map generator
Resources
Readme
License
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
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Contributors
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