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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Technology Tree Evolution</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f0f2f5;
color: #333;
overflow-y: auto;
overflow-x: hidden;
}
header {
background: linear-gradient(135deg, #2c3e50, #4ca1af);
color: white;
padding: 2rem 0;
text-align: center;
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
h1 {
font-size: 2.5rem;
margin-bottom: 0.5rem;
}
.subtitle {
font-size: 1.2rem;
opacity: 0.9;
}
.container {
max-width: 1200px;
margin: 2rem auto;
padding: 0 1rem;
display: flex;
}
.controls {
display: flex;
justify-content: space-between;
align-items: flex-start;
margin-bottom: 2rem;
flex-wrap: wrap;
gap: 1rem;
width: 200px;
margin-right: 2rem;
flex-direction: column;
}
.era-navigation {
display: flex;
flex-direction: column;
gap: 0.5rem;
width: 100%;
}
.add-tech-btn {
padding: 0.8rem 1.5rem;
border: none;
border-radius: 30px;
font-weight: bold;
cursor: pointer;
transition: all 0.3s ease;
box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
background-color: #9d4edd;
color: white;
font-size: 0.9rem;
text-transform: uppercase;
letter-spacing: 1px;
display: flex;
align-items: center;
gap: 0.5rem;
width: 100%;
}
.add-tech-btn:hover {
transform: translateY(-2px);
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
background-color: #7b2cbf;
}
.era-button {
padding: 0.8rem 1.5rem;
border: none;
border-radius: 30px;
font-weight: bold;
cursor: pointer;
transition: all 0.3s ease;
box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
font-size: 0.9rem;
text-transform: uppercase;
letter-spacing: 1px;
width: 100%;
text-align: left;
}
.era-button:hover {
transform: translateY(-2px);
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}
.era-ancient {
background-color: #e9c46a;
color: #333;
}
.era-classical {
background-color: #f4a261;
color: white;
}
.era-medieval {
background-color: #e76f51;
color: white;
}
.era-industrial {
background-color: #2a9d8f;
color: white;
}
.era-modern {
background-color: #1d3557;
color: white;
}
.era-future {
background-color: #9d4edd;
color: white;
}
.tech-tree-container {
width: calc(100% - 220px);
height: 800px;
overflow: auto;
background: white;
border-radius: 12px;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
padding: 2rem;
position: relative;
margin-bottom: 3rem;
}
.tech-tree {
position: relative;
width: 100%;
height: 3500px;
margin: 0 auto;
}
.era-line {
position: absolute;
width: 100%;
height: 2px;
background-color: rgba(0, 0, 0, 0.1);
z-index: 0;
left: 0;
}
.ancient-line { top: 150px; }
.classical-line { top: 450px; }
.medieval-line { top: 750px; }
.industrial-line { top: 1050px; }
.modern-line { top: 1350px; }
.future-line { top: 1650px; }
.era-labels {
position: absolute;
left: 0;
width: 100px;
display: flex;
flex-direction: column;
gap: 300px;
z-index: 5;
font-weight: bold;
color: #555;
text-transform: uppercase;
font-size: 0.9rem;
letter-spacing: 1px;
top: 0;
padding-left: 20px;
}
.tech-node {
position: absolute;
width: 100px;
height: 100px;
border-radius: 50%;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
text-align: center;
cursor: pointer;
transition: all 0.3s ease;
z-index: 10;
transform: scale(0.95);
box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.tech-node:hover {
transform: scale(1.05);
z-index: 20;
}
.tech-icon {
font-size: 1.8rem;
margin-bottom: 0.3rem;
}
.tech-name {
font-weight: bold;
font-size: 0.7rem;
}
.tech-era {
font-size: 0.6rem;
opacity: 0.8;
margin-top: 2px;
}
/* Node colors based on era */
.ancient {
background-color: #e9c46a;
color: #333;
}
.classical {
background-color: #f4a261;
color: white;
}
.medieval {
background-color: #e76f51;
color: white;
}
.industrial {
background-color: #2a9d8f;
color: white;
}
.modern {
background-color: #1d3557;
color: white;
}
.future {
background-color: #9d4edd;
color: white;
}
/* Connection lines */
.connection {
position: absolute;
background-color: #aaa;
height: 2px;
z-index: 1;
transform-origin: 0 0;
}
.node-popup {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%) scale(0.9);
background: white;
padding: 2rem;
border-radius: 12px;
box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
z-index: 100;
max-width: 400px;
opacity: 0;
pointer-events: none;
transition: all 0.3s ease;
}
.node-popup.active {
transform: translate(-50%, -50%) scale(1);
opacity: 1;
pointer-events: auto;
}
.node-popup h3 {
margin-bottom: 0.5rem;
color: #444;
font-size: 1.5rem;
}
.node-popup .era {
font-size: 0.9rem;
margin-bottom: 1rem;
font-weight: bold;
padding: 0.3rem 0.8rem;
background-color: #f0f0f0;
display: inline-block;
border-radius: 20px;
color: #555;
}
.node-popup .description {
margin-bottom: 1.5rem;
line-height: 1.6;
color: #555;
}
.node-popup .prerequisites {
font-size: 0.9rem;
color: #666;
padding: 0.8rem;
background-color: #f8f8f8;
border-radius: 6px;
border-left: 3px solid #9d4edd;
}
.close-popup {
position: absolute;
top: 10px;
right: 15px;
font-size: 1.5rem;
cursor: pointer;
color: #888;
transition: all 0.2s;
}
.close-popup:hover {
color: #333;
transform: rotate(90deg);
}
.add-node-form {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%) scale(0.9);
background: white;
padding: 1rem;
border-radius: 12px;
box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
z-index: 100;
width: 90%;
max-height: 80vh;
overflow-y: auto;
max-width: 320px;
opacity: 0;
pointer-events: none;
transition: all 0.3s ease;
}
.add-node-form.active {
transform: translate(-50%, -50%) scale(1);
opacity: 1;
pointer-events: auto;
}
.add-node-form h2 {
margin-bottom: 0.8rem;
color: #444;
font-size: 1.1rem;
padding-bottom: 0.5rem;
border-bottom: 1px solid #eee;
}
.form-group {
margin-bottom: 0.6rem;
}
.form-group label {
display: block;
margin-bottom: 0.2rem;
font-weight: bold;
color: #555;
font-size: 0.8rem;
}
.form-group input,
.form-group select,
.form-group textarea {
width: 100%;
padding: 0.5rem;
border: 1px solid #ddd;
border-radius: 6px;
font-family: inherit;
font-size: 0.8rem;
transition: all 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
border-color: #9d4edd;
outline: none;
box-shadow: 0 0 0 3px rgba(157, 78, 221, 0.2);
}
.form-group textarea {
min-height: 60px;
resize: vertical;
}
.form-actions {
display: flex;
justify-content: flex-end;
gap: 0.6rem;
margin-top: 0.8rem;
padding-top: 0.8rem;
border-top: 1px solid #eee;
}
.form-actions button {
padding: 0.5rem 1rem;
border: none;
border-radius: 6px;
cursor: pointer;
font-weight: bold;
font-size: 0.8rem;
transition: all 0.2s;
}
.form-cancel {
background-color: #f0f0f0;
color: #555;
}
.form-cancel:hover {
background-color: #e0e0e0;
}
.form-submit {
background-color: #9d4edd;
color: white;
}
.form-submit:hover {
background-color: #7b2cbf;
}
.checkbox-group {
margin-top: 0.3rem;
max-height: 100px;
overflow-y: auto;
border: 1px solid #eee;
padding: 0.3rem;
border-radius: 4px;
font-size: 0.75rem;
}
.checkbox-item {
display: flex;
align-items: center;
margin-bottom: 0.2rem;
font-size: 0.75rem;
padding: 0.2rem;
border-radius: 3px;
transition: all 0.2s;
}
.checkbox-item:hover {
background-color: #f5f5f5;
}
.checkbox-item input {
width: auto;
margin-right: 0.3rem;
accent-color: #9d4edd;
}
.icon-selecter {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 0.3rem;
margin-top: 0.3rem;
max-height: 120px;
overflow-y: auto;
padding: 0.3rem;
border: 1px solid #eee;
border-radius: 4px;
}
.icon-option {
display: flex;
flex-direction: column;
align-items: center;
padding: 0.3rem;
border: 1px solid #ddd;
border-radius: 4px;
cursor: pointer;
transition: all 0.2s;
font-size: 0.7rem;
}
.icon-option:hover {
border-color: #9d4edd;
background-color: #f9f0ff;
}
.icon-option.selected {
border-color: #9d4edd;
background-color: #f0d6ff;
}
.icon-option i {
font-size: 1rem;
margin-bottom: 0.1rem;
}
footer {
text-align: center;
padding: 2rem 0;
background-color: #2c3e50;
color: white;
}
.timeline-bar {
position: absolute;
top: 0;
right: 0;
width: 4px;
height: 100%;
background: linear-gradient(to bottom, #e9c46a, #f4a261, #e76f51, #2a9d8f, #1d3557, #9d4edd);
border-radius: 0 0 12px 12px;
}
.tech-path {
position: absolute;
width: 4px;
height: 0;
background-color: rgba(255, 255, 255, 0.8);
z-index: 2;
top: 0;
right: 0;
transition: height 0.5s ease-in-out;
}
.drag-handle {
position: absolute;
top: -5px;
right: -5px;
width: 20px;
height: 20px;
background-color: rgba(255, 255, 255, 0.8);
border-radius: 50%;
border: 1px solid #ccc;
cursor: move;
display: none;
z-index: 30;
font-size: 0.7rem;
display: flex;
align-items: center;
justify-content: center;
color: #555;
}
.tech-node.editable .drag-handle {
display: flex;
}
.delete-node {
position: absolute;
top: -5px;
left: -5px;
width: 20px;
height: 20px;
background-color: #ff6b6b;
border-radius: 50%;
cursor: pointer;
display: none;
z-index: 30;
font-size: 0.7rem;
display: flex;
align-items: center;
justify-content: center;
color: white;
opacity: 0;
transition: opacity 0.2s;
}
.tech-node.editable:hover .delete-node {
opacity: 1;
}
.editable-mode {
border: 2px dashed #9d4edd;
}
.toggle-edit-mode {
padding: 0.8rem 1.5rem;
border: none;
border-radius: 30px;
font-weight: bold;
cursor: pointer;
transition: all 0.3s ease;
box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
font-size: 0.9rem;
text-transform: uppercase;
letter-spacing: 1px;
background-color: #ff6b6b;
color: white;
width: 100%;
text-align: left;
}
.toggle-edit-mode:hover {
background-color: #ff5252;
}
.toggle-edit-mode.active {
background-color: #4CAF50;
}
/* Additional styling for the controls section */
.controls-section {
background-color: white;
padding: 1rem;
border-radius: 8px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
margin-bottom: 1rem;
}
.controls-title {
font-size: 0.9rem;
font-weight: bold;
color: #555;
margin-bottom: 0.5rem;
display: flex;
align-items: center;
gap: 0.5rem;
}
.controls-title i {
font-size: 1rem;
}
/* Animation for new nodes */
@keyframes nodeAppear {
0% {
transform: scale(0.5) rotate(0deg);
opacity: 0;
}
100% {
transform: scale(1) rotate(0deg);
opacity: 1;
}
}
.new-node {
animation: nodeAppear 0.3s ease-out forwards;
}
</style>
</head>
<body>
<header>
<h1>Technology Evolution Tree</h1>
<div class="subtitle">Explore the progression of human innovation through history</div>
</header>
<div class="container">
<div class="controls">
<div class="controls-section">
<div class="controls-title"><i class="fas fa-clock"></i> Era Navigation</div>
<div class="era-navigation">
<button class="era-button era-ancient">Ancient</button>
<button class="era-button era-classical">Classical</button>
<button class="era-button era-medieval">Medieval</button>
<button class="era-button era-industrial">Industrial</button>
<button class="era-button era-modern">Modern</button>
<button class="era-button era-future">Future</button>
</div>
</div>
<div class="controls-section">
<div class="controls-title"><i class="fas fa-cog"></i> Controls</div>
<button class="add-tech-btn" id="addTechBtn">
<i class="fas fa-plus"></i> Add Technology
</button>
<button class="toggle-edit-mode" id="toggleEditMode">
<i class="fas fa-edit"></i> Toggle Edit Mode
</button>
</div>
</div>
<div class="tech-tree-container" id="techTreeContainer">
<div class="tech-tree" id="techTree">
<!-- Era dividers -->
<div class="era-line ancient-line"></div>
<div class="era-line classical-line"></div>
<div class="era-line medieval-line"></div>
<div class="era-line industrial-line"></div>
<div class="era-line modern-line"></div>
<div class="era-line future-line"></div>
<div class="era-labels">
<div>Ancient</div>
<div>Classical</div>
<div>Medieval</div>
<div>Industrial</div>
<div>Modern</div>
<div>Future</div>
</div>
<div class="timeline-bar">
<div class="tech-path"></div>
</div>
</div>
</div>
</div>
<!-- Technology Details Popup -->
<div class="node-popup" id="nodePopup">
<span class="close-popup">×</span>
<h3 id="popupTitle">Technology Name</h3>
<div class="era" id="popupEra">Ancient Era</div>
<div class="description" id="popupDescription">Description of technology...</div>
<div class="prerequisites" id="popupPrereqs">Prerequisites: None</div>
</div>
<!-- Add Technology Form -->
<div class="add-node-form" id="addNodeForm">
<h2>Add New Technology</h2>
<form id="techForm">
<div class="form-group">
<label for="techName">Technology Name</label>
<input type="text" id="techName" required placeholder="e.g., Quantum Computing">
</div>
<div class="form-group">
<label for="techEra">Era</label>
<select id="techEra" required>
<option value="ancient">Ancient</option>
<option value="classical">Classical</option>
<option value="medieval">Medieval</option>
<option value="industrial">Industrial</option>
<option value="modern">Modern</option>
<option value="future">Future</option>
</select>
</div>
<div class="form-group">
<label for="techIcon">Icon</label>
<div class="icon-selecter" id="iconSelector">
<!-- Icons will be added via JavaScript -->
</div>
</div>
<div class="form-group">
<label for="techDescription">Description</label>
<textarea id="techDescription" required placeholder="Describe the technology and its significance..."></textarea>
</div>
<div class="form-group">
<label>Prerequisites</label>
<div class="checkbox-group" id="prerequisiteCheckboxes">
<!-- Checkboxes will be added via JavaScript -->
</div>
</div>
<div class="form-actions">
<button type="button" class="form-cancel" id="cancelForm">Cancel</button>
<button type="submit" class="form-submit">Add Technology</button>
</div>
</form>
</div>
<footer>
<p>Explore the technological advancements that shaped human civilization</p>
</footer>
<script>
document.addEventListener('DOMContentLoaded', function() {
const techTree = document.getElementById('techTree');
const techTreeContainer = document.getElementById('techTreeContainer');
const nodePopup = document.getElementById('nodePopup');
const closePopup = document.querySelector('.close-popup');
const techPath = document.querySelector('.tech-path');
const addTechBtn = document.getElementById('addTechBtn');
const addNodeForm = document.getElementById('addNodeForm');
const techForm = document.getElementById('techForm');
const cancelForm = document.getElementById('cancelForm');
const iconSelector = document.getElementById('iconSelector');
const prerequisiteCheckboxes = document.getElementById('prerequisiteCheckboxes');
const toggleEditMode = document.getElementById('toggleEditMode');
let selectedIcon = 'fas fa-question';
let techData = [];
let nextId = 1;
let draggingNode = null;
let offsetX, offsetY;
let isEditMode = false;
// Extended list of Font Awesome icons for technologies
const commonIcons = [
'fas fa-fire', 'fas fa-wheel', 'fas fa-seedling', 'fas fa-book',
'fas fa-square-root-alt', 'fas fa-hammer', 'fas fa-print',
'fas fa-compass', 'fas fa-train', 'fas fa-bolt', 'fas fa-satellite-dish',
'fas fa-car', 'fas fa-plane', 'fas fa-computer', 'fas fa-network-wired',
'fas fa-robot', 'fas fa-atom', 'fas fa-dna', 'fas fa-rocket',
'fas fa-microchip', 'fas fa-brain', 'fas fa-vr-cardboard',
'fas fa-biohazard', 'fas fa-solar-panel', 'fas fa-wind', 'fas fa-eye',
'fas fa-bullseye', 'fas fa-tools', 'fas fa-flask', 'fas fa-microscope',
'fas fa-disease', 'fas fa-virus', 'fas fa-dove', 'fas fa-globe',
'fas fa-magnet', 'fas fa-lightbulb', 'fas fa-broadcast-tower',
'fas fa-satellite', 'fas fa-shield-alt', 'fas fa-cogs', 'fas fa-brain',
'fas fa-fan', 'fas fa-chart-line', 'fas fa-industry', 'fas fa-city',
'fas fa-battery-full', 'fas fa-cloud', 'fas fa-database'
];
// Initialize with robust technology data
initializeTechData();
// Draw the initial technology tree
drawTechTree();
// Technology data initialization
function initializeTechData() {
techData = [
// Ancient Era (4000 BCE - 500 BCE)
{
id: nextId++,
name: "Fire",
era: "ancient",
icon: "fas fa-fire",
description: "Mastery of fire allowed for cooking, warmth, protection and became the foundation for later metallurgy and energy technologies.",
x: 100,
y: 150,
prerequisites: []
},
{
id: nextId++,
name: "Wheel",
era: "ancient",
icon: "fas fa-wheel",
description: "The invention of the wheel revolutionized transportation and mechanical applications, enabling carts, potter's wheels, and later complex machinery.",
x: 300,
y: 150,
prerequisites: []
},
{
id: nextId++,
name: "Agriculture",
era: "ancient",
icon: "fas fa-seedling",
description: "The domestication of plants led to settled communities, food surplus, and the development of complex societies and specialization.",
x: 500,
y: 150,
prerequisites: [1] // Requires Fire
},
{
id: nextId++,
name: "Writing",
era: "ancient",
icon: "fas fa-book",
description: "Early writing systems like cuneiform and hieroglyphics emerged for record keeping, enabling complex administration and knowledge transmission.",
x: 700,
y: 150,
prerequisites: [3] // Requires Agriculture
},
// Classical Era (500 BCE - 500 CE)
{
id: nextId++,
name: "Mathematics",
era: "classical",
icon: "fas fa-square-root-alt",
description: "Systematic development of mathematics including geometry, algebra, and number theory that became foundational for all sciences.",
x: 100,
y: 450,
prerequisites: [4] // Requires Writing
},
{
id: nextId++,
name: "Architecture",
era: "classical",
icon: "fas fa-archway",
description: "Advanced techniques in construction enabled monumental buildings like temples, aqueducts and coliseums using arches, domes and concrete.",
x: 300,
y: 450,
prerequisites: [5] // Requires Mathematics
},
{
id: nextId++,
name: "Metalworking",
era: "classical",
icon: "fas fa-hammer",
description: "Advanced techniques in smelting and forging enabled better tools, weapons, armor and the beginning of mechanical engineering.",
x: 500,
y: 450,
prerequisites: [1] // Requires Fire
},
{
id: nextId++,
name: "Currency",
era: "classical",
icon: "fas fa-coins",
description: "Standardized coinage systems enabled complex trade networks and economic systems beyond simple barter.",
x: 700,
y: 450,
prerequisites: [4, 3] // Requires Writing, Agriculture
},
// Medieval Era (500 CE - 1500 CE)
{
id: nextId++,
name: "Printing",
era: "medieval",
icon: "fas fa-print",
description: "Movable type printing enabled mass production of books, spreading literacy and enabling the Renaissance and scientific revolution.",
x: 100,
y: 750,
prerequisites: [4] // Requires Writing
},
{
id: nextId++,
name: "Compass",
era: "medieval",
icon: "fas fa-compass",
description: "The magnetic compass enabled reliable navigation at sea, facilitating global exploration, trade and cultural exchange.",
x: 300,
y: 750,
prerequisites: [7] // Requires Metalworking
},
{
id: nextId++,
name: "Gunpowder",
era: "medieval",
icon: "fas fa-bomb",
description: "Revolutionized warfare and mining, leading to new military strategies and eventually industrial explosives.",
x: 500,
y: 750,
prerequisites: [7] // Requires Metalworking
},
{
id: nextId++,
name: "Mechanical Clock",
era: "medieval",
icon: "fas fa-clock",
description: "Accurate timekeeping enabled better navigation, scheduling of economic activities, and scientific measurements.",
x: 700,
y: 750,
prerequisites: [7] // Requires Metalworking
},
// Industrial Era (1500 CE - 1900 CE)
{
id: nextId++,
name: "Steam Engine",
era: "industrial",
icon: "fas fa-train",
description: "Powered the Industrial Revolution, transforming transportation, manufacturing and energy production.",
x: 100,
y: 1050,
prerequisites: [7] // Requires Metalworking
},
{
id: nextId++,
name: "Electricity",
era: "industrial",
icon: "fas fa-bolt",
description: "Harnessing electricity transformed every aspect of life from lighting and communication to industrial production.",
x: 300,
y: 1050,
prerequisites: [13] // Requires Steam Engine
},
{
id: nextId++,
name: "Telegraph",
era: "industrial",
icon: "fas fa-broadcast-tower",
description: "First rapid long-distance communication system that shrank the world and transformed business, news and diplomacy.",
x: 500,
y: 1050,
prerequisites: [14] // Requires Electricity
},
{
id: nextId++,
name: "Vaccination",
era: "industrial",
icon: "fas fa-syringe",
description: "Scientific immunization methods dramatically reduced mortality from infectious diseases, increasing global population health.",
x: 700,
y: 1050,
prerequisites: []
},
// Modern Era (1900 CE - 2000 CE)
{
id: nextId++,
name: "Computing",
era: "modern",
icon: "fas fa-computer",
description: "Digital computing revolutionized information processing, leading to the Information Age and transforming society.",
x: 100,
y: 1350,
prerequisites: [14] // Requires Electricity
},
{
id: nextId++,
name: "Automobile",
era: "modern",
icon: "fas fa-car",
description: "Mass production of affordable personal vehicles transformed transportation, urban design and modern lifestyles.",
x: 300,
y: 1350,
prerequisites: [13, 14] // Requires Steam Engine, Electricity
},
{
id: nextId++,
name: "Aviation",
era: "modern",
icon: "fas fa-plane",
description: "Powered flight revolutionized global transportation, warfare and connected the world more tightly than ever before.",
x: 500,
y: 1350,
prerequisites: [13, 14] // Requires Steam Engine, Electricity
},
{
id: nextId++,
name: "Internet",
era: "modern",
icon: "fas fa-network-wired",
description: "Global digital network revolutionized communication, commerce, education and access to information.",
x: 700,
y: 1350,
prerequisites: [17] // Requires Computing
},
// Future Era (2000 CE - beyond)
{
id: nextId++,
name: "AI",
era: "future",
icon: "fas fa-robot",
description: "Artificial Intelligence promises to automate complex tasks, enhance human capabilities and solve problems beyond human-scale processing.",
x: 100,
y: 1650,
prerequisites: [17, 20] // Requires Computing, Internet
},
{
id: nextId++,
name: "Fusion Power",
era: "future",
icon: "fas fa-atom",
description: "Nuclear fusion could provide nearly limitless clean energy, solving humanity's energy needs while reducing environmental impact.",
x: 300,
y: 1650,
prerequisites: [14, 17] // Requires Electricity, Computing
},
{
id: nextId++,
name: "Quantum Computing",
era: "future",
icon: "fas fa-brain",
description: "Harnesses quantum mechanics to perform calculations impossible for classical computers, revolutionizing cryptography, simulation and optimization.",
x: 500,
y: 1650,
prerequisites: [17] // Requires Computing
},
{
id: nextId++,
name: "Space Colonization",
era: "future",
icon: "fas fa-rocket",
description: "Establishing permanent human settlements beyond Earth would ensure species survival and open new frontiers for exploration and resources.",
x: 700,
y: 1650,
prerequisites: [14, 22] // Requires Electricity, Fusion Power
}
];
}
// Draw the entire technology tree
function drawTechTree() {
// Clear existing nodes and connections
techTree.innerHTML = '';
// Add back the era dividers and labels
techTree.innerHTML += `
<div class="era-line ancient-line"></div>
<div class="era-line classical-line"></div>
<div class="era-line medieval-line"></div>
<div class="era-line industrial-line"></div>
<div class="era-line modern-line"></div>
<div class="era-line future-line"></div>
<div class="era-labels">
<div style="top: 150px;">Ancient</div>
<div style="top: 450px;">Classical</div>
<div style="top: 750px;">Medieval</div>
<div style="top: 1050px;">Industrial</div>
<div style="top: 1350px;">Modern</div>
<div style="top: 1650px;">Future</div>
</div>
`;
// Draw connections first (so nodes appear on top)
techData.forEach(tech => {
if (tech.prerequisites && tech.prerequisites.length) {
tech.prerequisites.forEach(prereqId => {
const prereqTech = techData.find(t => t.id === prereqId);
if (prereqTech) {
drawConnection(
prereqTech.x + 50, prereqTech.y + 50, // source (center of circle)
tech.x + 50, tech.y + 50 // target
);
}
});
}
});
// Draw the technology nodes
techData.forEach(tech => {
createTechNode(tech);
});
}
// Create a single technology node
function createTechNode(tech) {
const node = document.createElement('div');
node.className = `tech-node ${tech.era}`;
node.style.left = `${tech.x}px`;
node.style.top = `${tech.y}px`;
node.dataset.id = tech.id;
node.innerHTML = `
<div class="tech-icon">
<i class="${tech.icon}"></i>
</div>
<div class="tech-name">${tech.name}</div>
<div class="tech-era">${tech.era.charAt(0).toUpperCase() + tech.era.slice(1)}</div>
<div class="drag-handle">↔</div>
<div class="delete-node">×</div>
`;
node.addEventListener('click', (e) => {
// Don't show popup if in edit mode or clicking on the delete button
if (isEditMode || e.target.classList.contains('delete-node') || e.target.classList.contains('drag-handle')) {
return;
}
showTechPopup(tech);
animateTechPath(tech.era);
});
// Dragging functionality (only in edit mode)
node.addEventListener('mousedown', (e) => {
if (!isEditMode) return;
// Don't drag if clicking on the delete button
if (e.target.classList.contains('delete-node')) {
return;
}
e.preventDefault();
draggingNode = node;
// Calculate offset from mouse to node position
const rect = node.getBoundingClientRect();
offsetX = e.clientX - rect.left;
offsetY = e.clientY - rect.top;
// Set the node to absolute positioning (if not already)
node.style.position = 'absolute';
// Move the node to the front
node.style.zIndex = '1000';
document.addEventListener('mousemove', dragNode);
document.addEventListener('mouseup', stopDrag);
});
// Delete functionality (only in edit mode)
const deleteBtn = node.querySelector('.delete-node');
deleteBtn.addEventListener('click', (e) => {
if (!isEditMode) return;
e.stopPropagation();
if (confirm(`Delete "${tech.name}"?`)) {
// Remove this tech from prerequisites of other techs
techData.forEach(t => {
t.prerequisites = t.prerequisites.filter(id => id !== tech.id);
});
// Remove the tech
techData = techData.filter(t => t.id !== tech.id);
// Reddraw the tree
drawTechTree();
}
});
// Show/hide edit controls based on mode
updateNodeEditControls(node);
techTree.appendChild(node);
return node;
}
// Update node edit controls based on current mode
function updateNodeEditControls(node) {
const dragHandle = node.querySelector('.drag-handle');
const deleteBtn = node.querySelector('.delete-node');
if (isEditMode) {
node.classList.add('editable');
dragHandle.style.display = 'flex';
deleteBtn.style.display = 'flex';
} else {
node.classList.remove('editable');
dragHandle.style.display = 'none';
deleteBtn.style.display = 'none';
}
}
// Function to draw a connection line between two points
function drawConnection(x1, y1, x2, y2) {
const line = document.createElement('div');
line.className = 'connection';
// Calculate length and angle of the line
const length = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
const angle = Math.atan2(y2 - y1, x2 - x1) * 180 / Math.PI;
// Style the line
line.style.width = `${length}px`;
line.style.left = `${x1}px`;
line.style.top = `${y1}px`;
line.style.transform = `rotate(${angle}deg)`;
techTree.appendChild(line);
return line;
}
// Drag node handler
function dragNode(e) {
if (!draggingNode) return;
// Calculate new position
const containerRect = techTreeContainer.getBoundingClientRect();
let newX = e.clientX - containerRect.left - offsetX;
let newY = e.clientY - containerRect.top - offsetY;
// Constrain movement within container
newX = Math.max(0, Math.min(newX, techTreeContainer.scrollWidth - 100));
newY = Math.max(0, Math.min(newY, techTreeContainer.scrollHeight - 100));
// Update node position
draggingNode.style.left = `${newX}px`;
draggingNode.style.top = `${newY}px`;
// Update position in the tech data
const techId = parseInt(draggingNode.dataset.id);
const tech = techData.find(t => t.id === techId);
if (tech) {
tech.x = newX;
tech.y = newY;
}
// Redraw connections
redrawConnections();
}
// Stop dragging handler
function stopDrag() {
if (!draggingNode) return;
draggingNode.style.zIndex = '10';
draggingNode = null;
document.removeEventListener('mousemove', dragNode);
document.removeEventListener('mouseup', stopDrag);
}
// Redraw just the connections (more efficient than redrawing the whole tree)
function redrawConnections() {
// Remove all connection elements
const connections = document.querySelectorAll('.connection');
connections.forEach(c => c.remove());
// Redraw all connections
techData.forEach(tech => {
if (tech.prerequisites && tech.prerequisites.length) {
tech.prerequisites.forEach(prereqId => {
const prereqTech = techData.find(t => t.id === prereqId);
if (prereqTech) {
drawConnection(
prereqTech.x + 50, prereqTech.y + 50,
tech.x + 50, tech.y + 50
);
}
});
}
});
}
// Show technology details popup
function showTechPopup(tech) {
document.getElementById('popupTitle').textContent = tech.name;
// Format era with appropriate color
const eraElement = document.getElementById('popupEra');
eraElement.textContent = `${tech.era.charAt(0).toUpperCase() + tech.era.slice(1)} Era`;
eraElement.className = `era ${tech.era}`;
document.getElementById('popupDescription').textContent = tech.description;
if (tech.prerequisites && tech.prerequisites.length) {
const prereqNames = tech.prerequisites.map(id => {
const prereq = techData.find(t => t.id === id);
return prereq ? prereq.name : 'Unknown Technology';
}).join(', ');
document.getElementById('popupPrereqs').textContent =
`Prerequisites: ${prereqNames}`;
} else {
document.getElementById('popupPrereqs').textContent =
'Prerequisites: None (starting technology)';
}
// Show the popup with animation
nodePopup.classList.add('active');
}
// Close popup when clicking the X
closePopup.addEventListener('click', () => {
nodePopup.classList.remove('active');
});
// Close popup when clicking outside
window.addEventListener('click', (e) => {
if (e.target === nodePopup) {
nodePopup.classList.remove('active');
}
});
// Show add technology form
addTechBtn.addEventListener('click', () => {
// Populate icon selector
iconSelector.innerHTML = '';
commonIcons.forEach(icon => {
const iconOption = document.createElement('div');
iconOption.className = `icon-option ${icon === selectedIcon ? 'selected' : ''}`;
iconOption.dataset.icon = icon;
iconOption.innerHTML = `<i class="${icon}"></i>`;
iconOption.addEventListener('click', () => {
selectedIcon = icon;
document.querySelectorAll('.icon-option').forEach(opt => {
opt.classList.remove('selected');
});
iconOption.classList.add('selected');
});
iconSelector.appendChild(iconOption);
});
// Populate prerequisite checkboxes
prerequisiteCheckboxes.innerHTML = '';
techData.forEach(tech => {
const checkboxItem = document.createElement('div');
checkboxItem.className = 'checkbox-item';
const checkbox = document.createElement('input');
checkbox.type = 'checkbox';
checkbox.id = `prereq-${tech.id}`;
checkbox.value = tech.id;
const label = document.createElement('label');
label.htmlFor = `prereq-${tech.id}`;
label.textContent = tech.name;
checkboxItem.appendChild(checkbox);
checkboxItem.appendChild(label);
prerequisiteCheckboxes.appendChild(checkboxItem);
});
// Show the form with animation
addNodeForm.classList.add('active');
techForm.reset();
});
// Close add technology form
cancelForm.addEventListener('click', () => {
addNodeForm.classList.remove('active');
techForm.reset();
});
// Submit new technology
techForm.addEventListener('submit', (e) => {
e.preventDefault();
const name = document.getElementById('techName').value;
const era = document.getElementById('techEra').value;
const description = document.getElementById('techDescription').value;
// Get selected prerequisites
const prerequisites = [];
document.querySelectorAll('#prerequisiteCheckboxes input:checked').forEach(checkbox => {
prerequisites.push(parseInt(checkbox.value));
});
// Determine default position based on era
let x, y;
const eraTechs = techData.filter(t => t.era === era);
if (eraTechs.length > 0) {
// Position new node near others of the same era
const lastTech = eraTechs[eraTechs.length - 1];
x = lastTech.x + 200;
y = lastTech.y;
} else {
// First tech of this era - position appropriately
switch(era) {
case 'ancient': y = 150; break;
case 'classical': y = 450; break;
case 'medieval': y = 750; break;
case 'industrial': y = 1050; break;
case 'modern': y = 1350; break;
case 'future': y = 1650; break;
default: y = 150;
}
x = 100;
}
// Create the new tech
const newTech = {
id: nextId++,
name,
era,
icon: selectedIcon,
description,
x,
y,
prerequisites
};
// Add to our data
techData.push(newTech);
// Redraw the tree
drawTechTree();
// Close and reset the form
addNodeForm.classList.remove('active');
techForm.reset();
// Scroll to show the new node
techTreeContainer.scrollTo({
top: y - 100,
behavior: 'smooth'
});
});
// Animate the timeline path to show current era
function animateTechPath(era) {
let height = 0;
switch(era) {
case 'ancient': height = 7; break;
case 'classical': height = 20; break;
case 'medieval': height = 35; break;
case 'industrial': height = 50; break;
case 'modern': height = 70; break;
case 'future': height = 100; break;
}
techPath.style.height = `${height}%`;
}
// Era navigation buttons
document.querySelectorAll('.era-button').forEach(button => {
button.addEventListener('click', () => {
const era = button.textContent.toLowerCase();
scrollToEra(era);
animateTechPath(era);
});
});
// Scroll to specific era
function scrollToEra(era) {
let scrollTop;
switch(era) {
case 'ancient': scrollTop = 0; break;
case 'classical': scrollTop = 300; break;
case 'medieval': scrollTop = 600; break;
case 'industrial': scrollTop = 900; break;
case 'modern': scrollTop = 1200; break;
case 'future': scrollTop = 1500; break;
default: scrollTop = 0;
}
techTreeContainer.scrollTo({
top: scrollTop,
behavior: 'smooth'
});
}
// Toggle edit mode
toggleEditMode.addEventListener('click', () => {
isEditMode = !isEditMode;
// Update button appearance
if (isEditMode) {
toggleEditMode.classList.add('active');
toggleEditMode.innerHTML = '<i class="fas fa-check"></i> Edit Mode ON';
techTreeContainer.classList.add('editable-mode');
} else {
toggleEditMode.classList.remove('active');
toggleEditMode.innerHTML = '<i class="fas fa-edit"></i> Toggle Edit Mode';
techTreeContainer.classList.remove('editable-mode');
}
// Update all nodes
document.querySelectorAll('.tech-node').forEach(node => {
updateNodeEditControls(node);
});
});
// Initial load - set to ancient era
animateTechPath('ancient');
});
</script>
</body>
</html> |