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Atridad Lahiji 2025-03-07 18:43:08 -06:00
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# Logs
logs
*.log
npm-debug.log*
yarn-debug.log*
yarn-error.log*
pnpm-debug.log*
lerna-debug.log*
node_modules
dist
dist-ssr
*.local
# Editor directories and files
.vscode/*
!.vscode/extensions.json
.idea
.DS_Store
*.suo
*.ntvs*
*.njsproj
*.sln
*.sw?

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GNU AFFERO GENERAL PUBLIC LICENSE
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How to Apply These Terms to Your New Programs
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Copyright (C) 2025 Atridad
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56
README.md
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# Zoom Accel - A configurable Zoom Accelleration Chrome Plugin
# ZoomAccel
## Features
- Customizable "EQ style" zoom scaling
A tool for studying zoom acceleration curves in pointing tasks. Built with React + TypeScript + Vite.
## Overview
ZoomAccel presents users with a series of target acquisition tasks in a zoomable space. Users can enable/disable zoom acceleration and customize the acceleration curve to study its effects on pointing performance.
### Features
- Target acquisition tasks in a large virtual space
- Configurable zoom acceleration curves
- Real-time performance stats
- Trial history with detailed metrics
- CSV export for data analysis
- State persistence between sessions
## Getting Started
```bash
# Install dependencies
pnpm install
# Start development server
pnpm dev
# Build for production
pnpm build
```
## Usage
1. Click the green target circles to complete trials
2. Use Ctrl/Cmd + Scroll to zoom in/out
3. Click and drag to pan the view
4. Adjust acceleration curve in Settings ⚙️
5. View performance history in History 📊
6. Export data as CSV for analysis 📥
## Data Collection
Each trial records:
- Time taken (ms)
- Number of misclicks
- Acceleration status
- Current acceleration curve values
- Timestamp
## Development
Built with:
- React
- TypeScript
- Vite

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background.js
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// TODO

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content.js
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// TODO

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eslint.config.js Normal file
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import js from '@eslint/js'
import globals from 'globals'
import reactHooks from 'eslint-plugin-react-hooks'
import reactRefresh from 'eslint-plugin-react-refresh'
import tseslint from 'typescript-eslint'
export default tseslint.config(
{ ignores: ['dist'] },
{
extends: [js.configs.recommended, ...tseslint.configs.recommended],
files: ['**/*.{ts,tsx}'],
languageOptions: {
ecmaVersion: 2020,
globals: globals.browser,
},
plugins: {
'react-hooks': reactHooks,
'react-refresh': reactRefresh,
},
rules: {
...reactHooks.configs.recommended.rules,
'react-refresh/only-export-components': [
'warn',
{ allowConstantExport: true },
],
},
},
)

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index.html Normal file
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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" type="image/svg+xml" href="/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>✨ ZoomAccel ✨</title>
</head>
<body>
<div id="root"></div>
<script type="module" src="/src/main.tsx"></script>
</body>
</html>

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manifest.json
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{
"manifest_version": 3,
"name": "Zoom Accelerator",
"version": "1.0",
"description": "Adds customizable smooth zoom acceleration to Chrome",
"permissions": ["activeTab", "storage"],
"host_permissions": ["<all_urls>"],
"action": {
"default_popup": "popup.html"
},
"background": {
"service_worker": "background.js"
},
"content_scripts": [
{
"matches": ["<all_urls>"],
"js": ["content.js"]
}
]
}

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package.json Normal file
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{
"name": "zoomaccel",
"private": true,
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "tsc -b && vite build",
"lint": "eslint .",
"preview": "vite preview"
},
"dependencies": {
"react": "^19.0.0",
"react-dom": "^19.0.0"
},
"devDependencies": {
"@eslint/js": "^9.21.0",
"@types/react": "^19.0.10",
"@types/react-dom": "^19.0.4",
"@vitejs/plugin-react": "^4.3.4",
"eslint": "^9.21.0",
"eslint-plugin-react-hooks": "^5.1.0",
"eslint-plugin-react-refresh": "^0.4.19",
"globals": "^16.0.0",
"typescript": "~5.7.3",
"typescript-eslint": "^8.25.0",
"vite": "^6.1.1"
}
}

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popup.html
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<p>TODO</p>

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// TODO

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.app {
width: 100vw;
height: 100vh;
overflow: hidden;
background-color: white;
position: relative;
}
.stats {
position: fixed;
top: 20px;
left: 20px;
transform: none;
color: #213547;
background-color: white;
padding: 12px 20px;
border-radius: 8px;
font-family: Inter, system-ui, Arial, sans-serif;
font-size: 14px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
border: 1px solid #ddd;
z-index: 100;
display: flex;
gap: 12px;
align-items: center;
}
.stats span {
white-space: nowrap;
}
.container {
width: 100%;
height: 100%;
position: relative;
overflow: hidden;
cursor: crosshair;
touch-action: none;
}
.content {
position: absolute;
width: 10000px;
/* Match VIRTUAL_CANVAS_SIZE */
height: 10000px;
transform-origin: 0 0;
background-color: white;
background-image: linear-gradient(#ddd 1px, transparent 1px),
linear-gradient(90deg, #ddd 1px, transparent 1px);
background-size: 100px 100px;
}
.target {
position: absolute;
background-color: #888888;
border-radius: 50%;
transition: background-color 0.2s ease;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
transform: translate(-50%, -50%);
}
.target.active {
background-color: #44aa44;
box-shadow: 0 0 20px rgba(68, 170, 68, 0.4);
}
html,
body,
#root {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
overflow: hidden;
background-color: white;
}
.controls {
position: fixed;
top: 20px;
right: 20px;
display: flex;
gap: 10px;
z-index: 1001;
}
.settings-toggle,
.rounds-toggle,
.export-button,
.reset-button {
display: flex;
align-items: center;
gap: 6px;
background: white;
border: 1px solid #ddd;
padding: 8px 16px;
border-radius: 8px;
cursor: pointer;
font-size: 14px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
transition: all 0.2s ease;
}
.settings-toggle:hover,
.rounds-toggle:hover,
.export-button:hover,
.reset-button:hover {
background: #f5f5f5;
border-color: #646cff;
}
.export-button:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.export-button:disabled:hover {
background: white;
border-color: #ddd;
}
.reset-button {
border-color: #ffcdd2;
}
.reset-button:hover {
background: #fff5f5;
border-color: #ef5350;
}

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import React, { useState, useRef, useEffect } from 'react';
import { Settings } from './components/Settings';
import { RoundsHistory } from './components/RoundsHistory';
import { Instructions } from './components/Instructions';
import { saveState, loadState, exportToCSV } from './utils/storage';
import {
Target,
Stats,
ViewportOffset,
AccelerationSettings,
Round,
CONSTANTS,
} from './types';
import { generateTargets, getRandomTarget } from './utils/target';
import {
calculateInitialViewport,
clampZoom,
calculateTouchDistance,
calculateZoomFactor
} from './utils/interaction';
import {
createNewRound,
createInitialStats,
calculateAverageTime
} from './utils/stats';
import { calculateAccelerationFactor, processWheelDelta, updateWheelSamples } from './utils/acceleration';
import { createDefaultSettings } from './utils/settings';
import { clamp } from './utils/math';
import './App.css';
function App() {
// Core state
const [targets, setTargets] = useState<Target[]>([]);
const [currentTarget, setCurrentTarget] = useState<number | null>(null);
const [zoomLevel, setZoomLevel] = useState<number>(CONSTANTS.ZOOM_LEVELS.default);
const [stats, setStats] = useState<Stats>(createInitialStats());
// Load settings from localStorage or use defaults
const [settings, setSettings] = useState<AccelerationSettings>(() => {
const savedState = loadState();
const defaultSettings = createDefaultSettings();
return savedState?.settings ?? defaultSettings;
});
const [rounds, setRounds] = useState<Round[]>(() => {
const savedState = loadState();
return savedState?.rounds ?? [];
});
// UI state
const [showSettings, setShowSettings] = useState(false);
const [showRounds, setShowRounds] = useState(false);
const [showInstructions, setShowInstructions] = useState(false);
const [viewportOffset, setViewportOffset] = useState<ViewportOffset>({
x: 0,
y: 0,
});
// Add state to track drag operations
const isDragging = useRef(false);
const dragStartTime = useRef(0);
const dragStartPos = useRef({ x: 0, y: 0 });
const DRAG_THRESHOLD = 5; // pixels
// Refs for handling zoom behavior
const containerRef = useRef<HTMLDivElement>(null);
const zoomSpeedSamples = useRef<number[]>([]);
const touchStartDistance = useRef<number>(0);
const wasReset = useRef(false);
useEffect(() => {
const savedState = loadState();
if (savedState?.stats) {
setStats(savedState.stats);
}
setShowInstructions(!savedState?.rounds || savedState.rounds.length === 0);
}, []);
useEffect(() => {
saveState({
rounds,
stats,
settings,
});
}, [rounds, stats, settings]);
useEffect(() => {
initializeGame();
}, []);
const initializeGame = () => {
const newTargets = generateTargets();
setTargets(newTargets);
setCurrentTarget(getRandomTarget(null, CONSTANTS.TARGET_COUNT));
const initialZoom = 0.2;
setZoomLevel(initialZoom);
setViewportOffset(calculateInitialViewport(initialZoom));
setStats(previous => ({ ...previous, startTime: Date.now() }));
};
useEffect(() => {
const container = containerRef.current;
if (!container) return;
const handleWheelEvent = (event: WheelEvent) => {
if (event.ctrlKey || event.metaKey) {
event.preventDefault();
const containerBounds = container.getBoundingClientRect();
const cursorX = event.clientX - containerBounds.left;
const cursorY = event.clientY - containerBounds.top;
const worldX = viewportOffset.x + cursorX / zoomLevel;
const worldY = viewportOffset.y + cursorY / zoomLevel;
const scrollAmount = processWheelDelta(-event.deltaY);
if (isFinite(scrollAmount)) {
zoomSpeedSamples.current = updateWheelSamples(zoomSpeedSamples.current, scrollAmount);
}
let zoomDelta = scrollAmount * 0.001;
if (settings.enabled && zoomSpeedSamples.current.length > 0) {
const accelerationFactor = calculateAccelerationFactor(
zoomSpeedSamples.current,
settings.accelerationCurve,
settings.enabled
);
if (isFinite(accelerationFactor)) {
zoomDelta *= accelerationFactor;
}
}
zoomDelta = clamp(zoomDelta, -0.5, 0.5);
const newZoom = clampZoom(zoomLevel * (1 + zoomDelta));
if (isFinite(newZoom) && newZoom > 0) {
const newOffsetX = worldX - cursorX / newZoom;
const newOffsetY = worldY - cursorY / newZoom;
if (isFinite(newOffsetX) && isFinite(newOffsetY)) {
setZoomLevel(newZoom);
setViewportOffset({ x: newOffsetX, y: newOffsetY });
}
}
}
};
container.addEventListener('wheel', handleWheelEvent, { passive: false });
return () => container.removeEventListener('wheel', handleWheelEvent);
}, [zoomLevel, viewportOffset, settings]);
const handleTouchStart = (event: React.TouchEvent<HTMLDivElement>) => {
if (event.touches.length === 2) {
const touch1 = event.touches[0];
const touch2 = event.touches[1];
touchStartDistance.current = calculateTouchDistance(touch1, touch2);
}
};
const handleTouchMove = (event: React.TouchEvent<HTMLDivElement>) => {
if (event.touches.length === 2) {
event.preventDefault();
const touch1 = event.touches[0];
const touch2 = event.touches[1];
const currentDistance = calculateTouchDistance(touch1, touch2);
const zoomFactor = calculateZoomFactor(currentDistance, touchStartDistance.current);
setZoomLevel(previous => clampZoom(previous * zoomFactor));
}
};
const handleTouchEnd = () => {
touchStartDistance.current = 0;
};
const handleMouseMove = (event: React.MouseEvent) => {
if (event.buttons === 1) {
// Calculate total drag distance
const dx = event.clientX - dragStartPos.current.x;
const dy = event.clientY - dragStartPos.current.y;
const dragDistance = Math.hypot(dx, dy);
// Only set dragging if we've moved past the threshold
if (dragDistance > DRAG_THRESHOLD) {
isDragging.current = true;
}
setViewportOffset(previous => ({
x: previous.x - event.movementX / zoomLevel,
y: previous.y - event.movementY / zoomLevel,
}));
}
};
const handleMouseDown = (event: React.MouseEvent) => {
dragStartTime.current = Date.now();
dragStartPos.current = { x: event.clientX, y: event.clientY };
isDragging.current = false;
};
const handleMouseUp = () => {
// Reset drag state after a short delay to allow click event to check it
setTimeout(() => {
isDragging.current = false;
dragStartPos.current = { x: 0, y: 0 };
}, 0);
};
const handleClick = (event: React.MouseEvent) => {
if (!containerRef.current || currentTarget === null) return;
// If this was a drag operation or very slow click (likely a drag attempt), ignore it
if (isDragging.current || Date.now() - dragStartTime.current > 200) {
return;
}
const containerBounds = containerRef.current.getBoundingClientRect();
const worldX = (event.clientX - containerBounds.left) / zoomLevel + viewportOffset.x;
const worldY = (event.clientY - containerBounds.top) / zoomLevel + viewportOffset.y;
const target = targets[currentTarget];
if (!target) return;
const distanceToTarget = Math.hypot(target.x - worldX, target.y - worldY);
if (distanceToTarget <= target.radius) {
const timeElapsed = Date.now() - stats.startTime;
setRounds(previous => [...previous, createNewRound(timeElapsed, stats.misclicks, settings)]);
setStats({
startTime: Date.now(),
misclicks: 0,
targetsHit: stats.targetsHit + 1,
times: [...stats.times, timeElapsed],
});
setCurrentTarget(getRandomTarget(currentTarget, CONSTANTS.TARGET_COUNT));
} else {
setStats(previous => ({
...previous,
misclicks: previous.misclicks + 1,
}));
}
};
const handleReset = () => {
if (window.confirm('Are you sure you want to reset all trials, history, and settings? This cannot be undone.')) {
setRounds([]);
setStats(createInitialStats());
setSettings(createDefaultSettings());
initializeGame();
wasReset.current = true;
setShowInstructions(true);
}
};
return (
<div className="app">
<div className="controls">
<button
className="settings-toggle"
onClick={() => setShowSettings(!showSettings)}
>
⚙️ Settings
</button>
<button
className="rounds-toggle"
onClick={() => setShowRounds(!showRounds)}
>
📊 History
</button>
<button
className="export-button"
onClick={() => exportToCSV(rounds)}
disabled={rounds.length === 0}
>
📥 Export CSV
</button>
<button
className="reset-button"
onClick={handleReset}
>
🔄 Reset
</button>
</div>
<Settings
settings={settings}
onSettingsChange={setSettings}
visible={showSettings}
onClose={() => setShowSettings(false)}
/>
<RoundsHistory
rounds={rounds}
visible={showRounds}
onClose={() => setShowRounds(false)}
/>
<Instructions
visible={showInstructions}
onClose={() => setShowInstructions(false)}
/>
<div className="stats">
<span>Targets: {stats.targetsHit}</span> •
<span>Misclicks: {stats.misclicks}</span> •
<span>Avg Time: {calculateAverageTime(stats.times)} ms</span> •
<span>Zoom: {zoomLevel.toFixed(2)}x</span>
</div>
<div
ref={containerRef}
className="container"
onTouchStart={handleTouchStart}
onTouchMove={handleTouchMove}
onTouchEnd={handleTouchEnd}
onClick={handleClick}
onMouseMove={handleMouseMove}
onMouseDown={handleMouseDown}
onMouseUp={handleMouseUp}
>
<div
className="content"
style={{
transform: `translate(${-viewportOffset.x * zoomLevel}px, ${-viewportOffset.y * zoomLevel}px) scale(${zoomLevel})`,
transformOrigin: '0 0',
}}
>
{targets.map((target, index) => (
<div
key={index}
className={`target ${index === currentTarget ? 'active' : ''}`}
style={{
left: `${target.x}px`,
top: `${target.y}px`,
width: `${target.radius * 2}px`,
height: `${target.radius * 2}px`,
}}
/>
))}
</div>
</div>
</div>
);
}
export default App;

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.instructions-overlay {
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.5);
display: flex;
justify-content: center;
align-items: center;
z-index: 2000;
}
.instructions-panel {
background: white;
border-radius: 12px;
padding: 30px;
max-width: 500px;
width: 90%;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
position: relative;
}
.instructions-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 20px;
}
.instructions-header h2 {
margin: 0;
font-size: 1.5em;
color: #213547;
}
.instructions-content {
color: #4a5568;
line-height: 1.6;
}
.instructions-content ul {
padding-left: 20px;
margin: 15px 0;
}
.instructions-content li {
margin: 8px 0;
}
.instructions-footer {
margin-top: 25px;
display: flex;
justify-content: flex-end;
}
.got-it-button {
background: #646cff;
color: white;
border: none;
padding: 10px 20px;
border-radius: 6px;
cursor: pointer;
font-weight: 500;
transition: all 0.2s;
}
.got-it-button:hover {
background: #535bf2;
transform: translateY(-1px);
}
.keyboard-shortcut {
display: inline-block;
background: #f1f5f9;
padding: 2px 6px;
border-radius: 4px;
font-family: monospace;
margin: 0 2px;
}

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import React from 'react';
import './Instructions.css';
interface InstructionsProps {
visible: boolean;
onClose: () => void;
}
export const Instructions: React.FC<InstructionsProps> = ({ visible, onClose }) => {
if (!visible) return null;
return (
<div className="instructions-overlay" onClick={onClose}>
<div className="instructions-panel" onClick={e => e.stopPropagation()}>
<div className="instructions-header">
<h2>Welcome to ✨ ZoomAccel ✨!</h2>
</div>
<div className="instructions-content">
<p>
This is a simulation that measures target acquisition performance with different zoom acceleration curves.
</p>
<ul>
<li>
Click the green targets as quickly and accurately as possible
</li>
<li>
Use <span className="keyboard-shortcut">Ctrl + Scroll</span> or <span className="keyboard-shortcut">⌘ + Scroll</span> to zoom
</li>
<li>
Click and drag to pan the view
</li>
<li>
Toggle zoom acceleration and customize the curve in Settings <span className="keyboard-shortcut">⚙️</span>
</li>
<li>
View your performance history and export results using the History panel <span className="keyboard-shortcut">📊</span>
</li>
</ul>
<p>
Try different acceleration curves to find what works best for you!
</p>
</div>
<div className="instructions-footer">
<button className="got-it-button" onClick={onClose}>
Got it!
</button>
</div>
</div>
</div>
);
};

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.rounds-panel {
position: fixed;
top: 80px;
left: 20px;
background: white;
border: 1px solid #ddd;
border-radius: 8px;
padding: 20px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
z-index: 1000;
width: 300px;
max-height: calc(100vh - 120px);
overflow-y: auto;
color: #213547;
}
.rounds-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 20px;
position: sticky;
top: 0;
background: white;
padding-bottom: 10px;
border-bottom: 1px solid #eee;
}
.rounds-header h2 {
margin: 0;
font-size: 1.2em;
font-weight: 600;
color: #213547;
}
.rounds-header button {
background: none;
border: none;
font-size: 20px;
cursor: pointer;
padding: 0 8px;
box-shadow: none;
}
.rounds-header button:hover {
background: none;
color: #646cff;
}
.rounds-list {
display: flex;
flex-direction: column;
gap: 10px;
}
.round-item {
padding: 12px;
border: 1px solid #eee;
border-radius: 6px;
background: #f9f9f9;
transition: all 0.2s ease;
}
.round-item:hover {
border-color: #ddd;
background: white;
box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}
.round-number {
font-weight: 600;
margin-bottom: 8px;
color: #213547;
}
.round-stats {
font-size: 0.9em;
color: #666;
display: flex;
flex-direction: column;
gap: 4px;
}

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import React from 'react';
import { Round } from '../types';
import './RoundsHistory.css';
interface RoundsHistoryProps {
rounds: Round[];
visible: boolean;
onClose: () => void;
}
export const RoundsHistory: React.FC<RoundsHistoryProps> = ({
rounds,
visible,
onClose,
}) => {
if (!visible) return null;
return (
<div className="rounds-panel">
<div className="rounds-header">
<h2>Rounds History</h2>
<button onClick={onClose}>×</button>
</div>
<div className="rounds-list">
{rounds.slice().reverse().map((round, index) => (
<div key={round.timestamp} className="round-item">
<div className="round-number">Round {rounds.length - index}</div>
<div className="round-stats">
<div>Time: {round.timeSpent}ms</div>
<div>Misclicks: {round.misclicks}</div>
<div>Acceleration: {round.accelerationEnabled ? 'On' : 'Off'}</div>
</div>
</div>
))}
</div>
</div>
);
};

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.settings-panel {
position: fixed;
top: 80px;
right: 20px;
background: white;
border: 1px solid #ddd;
border-radius: 8px;
padding: 20px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
z-index: 1000;
width: 300px;
color: #213547;
}
.settings-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 20px;
}
.settings-header h2 {
margin: 0;
font-size: 1.2em;
font-weight: 600;
color: #213547;
}
.settings-header button {
background: none;
border: none;
font-size: 20px;
cursor: pointer;
padding: 0 8px;
box-shadow: none;
}
.settings-header button:hover {
background: none;
color: #646cff;
}
.slider-row {
display: flex;
align-items: center;
margin: 10px 0;
gap: 10px;
}
.slider-row label {
width: 120px;
font-size: 14px;
color: #213547;
}
.slider-row input[type="range"] {
flex: 1;
}
.slider-row .value-input {
width: 50px;
text-align: center;
font-size: 14px;
color: #213547;
padding: 4px;
border: 1px solid #ddd;
border-radius: 4px;
background: white;
}
.slider-row .value-input:focus {
outline: none;
border-color: #646cff;
box-shadow: 0 0 0 2px rgba(100, 108, 255, 0.2);
}
.slider-row .value-input:disabled {
background: #f5f5f5;
color: #999;
cursor: not-allowed;
}
.acceleration-toggle {
margin-bottom: 20px;
}
.acceleration-toggle label {
display: flex;
align-items: center;
gap: 8px;
cursor: pointer;
font-size: 14px;
color: #213547;
}
.sliders-container h3 {
margin: 0 0 15px 0;
font-size: 1em;
font-weight: 600;
color: #213547;
}

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import React, { useState } from 'react';
import { AccelerationSettings } from '../types';
import { updateSettingsCurve } from '../utils/settings';
import { clamp } from '../utils/math';
import './Settings.css';
interface SettingsProps {
settings: AccelerationSettings;
onSettingsChange: (settings: AccelerationSettings) => void;
visible: boolean;
onClose: () => void;
}
export const Settings: React.FC<SettingsProps> = ({
settings,
onSettingsChange,
visible,
onClose,
}) => {
const numSliders = 5;
const [editingValue, setEditingValue] = useState<string[]>(
new Array(numSliders).fill('')
);
const handleSliderChange = (index: number, value: number) => {
const newSettings = updateSettingsCurve(settings, index, value);
onSettingsChange(newSettings);
setEditingValue(prev => {
const next = [...prev];
next[index] = '';
return next;
});
};
const handleInputChange = (index: number, value: string) => {
setEditingValue(prev => {
const next = [...prev];
next[index] = value;
return next;
});
};
const handleInputBlur = (index: number) => {
const value = parseFloat(editingValue[index]);
if (!isNaN(value)) {
const clampedValue = clamp(value, 1, 10);
handleSliderChange(index, clampedValue);
}
setEditingValue(prev => {
const next = [...prev];
next[index] = '';
return next;
});
};
const handleInputKeyDown = (e: React.KeyboardEvent<HTMLInputElement>, index: number) => {
if (e.key === 'Enter') {
e.currentTarget.blur();
} else if (e.key === 'Escape') {
setEditingValue(prev => {
const next = [...prev];
next[index] = '';
return next;
});
e.currentTarget.blur();
}
};
if (!visible) return null;
return (
<div className="settings-panel">
<div className="settings-header">
<h2>Settings</h2>
<button onClick={onClose}>×</button>
</div>
<div className="acceleration-toggle">
<label>
<input
type="checkbox"
checked={settings.enabled}
onChange={(e) =>
onSettingsChange({ ...settings, enabled: e.target.checked })
}
/>
Enable Zoom Acceleration
</label>
</div>
<div className="sliders-container">
<h3>Acceleration Curve</h3>
{Array.from({ length: numSliders }).map((_, i) => (
<div key={i} className="slider-row">
<label>{((i / (numSliders - 1)) * 2).toFixed(2)} zoom units/s</label>
<input
type="range"
min="1"
max="10"
step="0.1"
value={settings.accelerationCurve?.[i] ?? 1}
onChange={(e) => handleSliderChange(i, parseFloat(e.target.value))}
disabled={!settings.enabled}
/>
<input
type="text"
className="value-input"
value={editingValue[i] || (settings.accelerationCurve?.[i] ?? 1).toFixed(1)}
onChange={(e) => handleInputChange(i, e.target.value)}
onBlur={() => handleInputBlur(i)}
onKeyDown={(e) => handleInputKeyDown(e, i)}
disabled={!settings.enabled}
placeholder={(settings.accelerationCurve?.[i] ?? 1).toFixed(1)}
/>
</div>
))}
</div>
</div>
);
};

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:root {
font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
line-height: 1.5;
font-weight: 400;
color: #213547;
background-color: #ffffff;
font-synthesis: none;
text-rendering: optimizeLegibility;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
body {
margin: 0;
display: flex;
min-width: 320px;
min-height: 100vh;
}
button {
border-radius: 8px;
border: 1px solid #ddd;
padding: 0.6em 1.2em;
font-size: 1em;
font-weight: 500;
font-family: inherit;
background-color: white;
cursor: pointer;
transition: all 0.25s;
color: #213547;
}
button:hover {
border-color: #646cff;
background-color: #f5f5f5;
}
button:focus,
button:focus-visible {
outline: 2px solid #646cff;
outline-offset: 2px;
}
#root {
width: 100%;
height: 100%;
}
a {
font-weight: 500;
color: #646cff;
text-decoration: inherit;
}
a:hover {
color: #535bf2;
}
h1 {
font-size: 3.2em;
line-height: 1.1;
}
@media (prefers-color-scheme: light) {
:root {
color: #213547;
background-color: #ffffff;
}
a:hover {
color: #747bff;
}
button {
background-color: #f9f9f9;
}
}

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import { StrictMode } from 'react'
import { createRoot } from 'react-dom/client'
import './index.css'
import App from './App.tsx'
createRoot(document.getElementById('root')!).render(
<StrictMode>
<App />
</StrictMode>,
)

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export interface Target {
x: number;
y: number;
radius: number;
}
export interface Stats {
startTime: number;
misclicks: number;
targetsHit: number;
times: number[];
}
export interface ViewportOffset {
x: number;
y: number;
}
export interface AccelerationSettings {
enabled: boolean;
accelerationCurve: number[];
}
export interface Round {
timeSpent: number;
misclicks: number;
accelerationEnabled: boolean;
accelerationCurve?: number[];
timestamp: number;
}
export const CONSTANTS = {
TARGET_COUNT: 200,
TARGET_MIN_RADIUS: 100,
TARGET_MAX_RADIUS: 800,
VIRTUAL_CANVAS_SIZE: 50000,
ZOOM_LEVELS: {
min: 0.01,
max: 10,
default: 0.2,
},
MOUSE_WHEEL_SAMPLES: 5,
NUM_CURVE_POINTS: 5,
} as const;

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import { Round, Stats, AccelerationSettings } from './types';
interface AppState {
rounds: Round[];
stats: Stats;
settings: AccelerationSettings;
}
// Persist app state to localStorage
export const saveState = (state: AppState) => {
try {
localStorage.setItem('zoomaccel_state', JSON.stringify(state));
} catch (error) {
console.error('Failed to save state:', error);
}
};
export const loadState = (): AppState | null => {
try {
const savedState = localStorage.getItem('zoomaccel_state');
if (savedState) {
return JSON.parse(savedState);
}
} catch (error) {
console.error('Failed to load state:', error);
}
return null;
};
export const exportToCSV = (rounds: Round[]) => {
const baseHeaders = ['Round Number', 'Time (ms)', 'Misclicks', 'Acceleration Enabled', 'Timestamp'];
// Figure out how many acceleration points we need
const maxCurvePoints = rounds.reduce((max, round) => {
return Math.max(max, round.accelerationCurve?.length || 0);
}, 0);
const curveHeaders = maxCurvePoints > 0
? Array.from({ length: maxCurvePoints }, (_, i) => `Accel ${i + 1}`)
: [];
const headers = [...baseHeaders, ...curveHeaders];
const rows = rounds.map((round, index) => {
const baseData = [
index + 1,
round.timeSpent,
round.misclicks,
round.accelerationEnabled ? 'true' : 'false',
new Date(round.timestamp).toISOString()
];
const curveData = maxCurvePoints > 0
? Array.from({ length: maxCurvePoints }, (_, i) =>
round.accelerationCurve?.[i]?.toFixed(2) || '')
: [];
return [...baseData, ...curveData];
});
const csvContent = [
headers.join(','),
...rows.map(row => row.join(','))
].join('\n');
// Download the file
const blob = new Blob([csvContent], { type: 'text/csv;charset=utf-8;' });
const link = document.createElement('a');
const url = URL.createObjectURL(blob);
const now = new Date();
const dateStr = now.toISOString().split('T')[0];
const timeStr = now.toTimeString().split(' ')[0].replace(/:/g, '-');
link.setAttribute('href', url);
link.setAttribute('download', `zoom_trials_${dateStr}_${timeStr}.csv`);
link.style.visibility = 'hidden';
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
};

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import { clamp } from './math';
import { interpolateCurveValue } from './settings';
import { CONSTANTS } from '../types';
export const calculateAccelerationFactor = (
wheelSamples: number[],
accelerationCurve: number[],
enabled: boolean
): number => {
if (!enabled || !wheelSamples || wheelSamples.length === 0 || !accelerationCurve) return 1;
// Calculate average speed in one pass
const averageSpeed = wheelSamples.reduce((sum, val) => sum + Math.abs(val), 0) / wheelSamples.length;
const normalizedSpeed = clamp(averageSpeed / 100, 0, 2);
return interpolateCurveValue(accelerationCurve, normalizedSpeed);
};
export const processWheelDelta = (
rawDelta: number,
maxDelta = 100
): number => {
return clamp(rawDelta, -maxDelta, maxDelta);
};
export const updateWheelSamples = (
samples: number[],
newValue: number
): number[] => {
const newSamples = samples.length >= CONSTANTS.MOUSE_WHEEL_SAMPLES
? [...samples.slice(1), Math.abs(newValue)]
: [...samples, Math.abs(newValue)];
return newSamples;
};

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import { ViewportOffset, CONSTANTS } from '../types';
import { clamp, calculateDistance } from './math';
// Zoom-related functions
export const calculateZoomDelta = (
wheelDelta: number,
accelerationFactor: number,
baseMultiplier = 0.001
): number => clamp(wheelDelta * baseMultiplier * accelerationFactor, -0.5, 0.5);
export const calculateInitialViewport = (initialZoom: number): ViewportOffset => ({
x: (CONSTANTS.VIRTUAL_CANVAS_SIZE - window.innerWidth / initialZoom) / 2,
y: (CONSTANTS.VIRTUAL_CANVAS_SIZE - window.innerHeight / initialZoom) / 2,
});
export const clampZoom = (zoom: number): number =>
clamp(zoom, CONSTANTS.ZOOM_LEVELS.min, CONSTANTS.ZOOM_LEVELS.max);
// Touch-related functions
export const calculateTouchDistance = (touch1: React.Touch | Touch, touch2: React.Touch | Touch): number =>
calculateDistance(touch1.clientX, touch1.clientY, touch2.clientX, touch2.clientY);
export const calculateZoomFactor = (currentDistance: number, startDistance: number): number =>
startDistance > 0 ? currentDistance / startDistance : 1;

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export const clamp = (value: number, min: number, max: number): number => {
return Math.max(min, Math.min(max, value));
};
export const normalize = (value: number, min: number, max: number): number => {
return (value - min) / (max - min);
};
export const lerp = (start: number, end: number, t: number): number => {
return start + (end - start) * t;
};
export const calculateDistance = (
x1: number,
y1: number,
x2: number,
y2: number
): number => {
const dx = x2 - x1;
const dy = y2 - y1;
return Math.hypot(dx, dy);
};
export const average = (numbers: number[]): number => {
return numbers.length ? numbers.reduce((sum, val) => sum + val, 0) / numbers.length : 0;
};

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import { AccelerationSettings, CONSTANTS } from '../types';
import { lerp } from './math';
export const updateSettingsCurve = (
settings: AccelerationSettings,
index: number,
value: number
): AccelerationSettings => {
const currentCurve = settings.accelerationCurve ?? new Array(CONSTANTS.NUM_CURVE_POINTS).fill(1);
return {
...settings,
accelerationCurve: currentCurve.map((v, i) => i === index ? value : v)
};
};
export const createDefaultSettings = (): AccelerationSettings => ({
enabled: false,
accelerationCurve: new Array(CONSTANTS.NUM_CURVE_POINTS).fill(1)
});
export const interpolateCurveValue = (
accelerationCurve: number[],
normalizedSpeed: number
): number => {
if (!accelerationCurve || accelerationCurve.length === 0) return 1;
const curveIndex = normalizedSpeed * (accelerationCurve.length - 1);
const lowerIndex = Math.floor(curveIndex);
const upperIndex = Math.min(accelerationCurve.length - 1, Math.ceil(curveIndex));
const interpolationFactor = curveIndex - lowerIndex;
return lerp(
accelerationCurve[lowerIndex],
accelerationCurve[upperIndex],
interpolationFactor
);
};

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import { Stats, Round, AccelerationSettings } from '../types';
export const calculateAverageTime = (times: number[]): number => {
return times.length
? Math.round(times.reduce((a, b) => a + b) / times.length)
: 0;
};
export const createNewRound = (
time: number,
misclicks: number,
settings: AccelerationSettings
): Round => ({
timeSpent: time,
misclicks,
accelerationEnabled: settings.enabled,
accelerationCurve: settings.enabled ? [...settings.accelerationCurve] : undefined,
timestamp: Date.now(),
});
export const createInitialStats = (): Stats => ({
startTime: Date.now(),
misclicks: 0,
targetsHit: 0,
times: [],
});

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import { Round, Stats, AccelerationSettings } from '../types';
interface StorageState {
rounds: Round[];
stats: Stats;
settings: AccelerationSettings;
}
const STORAGE_KEY = 'zoomaccell_state';
export const saveState = (state: StorageState): void => {
try {
localStorage.setItem(STORAGE_KEY, JSON.stringify(state));
} catch (error) {
console.error('Failed to save state:', error);
}
};
export const loadState = (): StorageState | null => {
try {
const savedState = localStorage.getItem(STORAGE_KEY);
return savedState ? JSON.parse(savedState) : null;
} catch (error) {
console.error('Failed to load state:', error);
return null;
}
};
export const exportToCSV = (rounds: Round[]): void => {
const headers = ['Round', 'Time (ms)', 'Misclicks', 'Acceleration', 'Timestamp'];
const rows = rounds.map((round, index) => [
index + 1,
round.timeSpent,
round.misclicks,
round.accelerationEnabled ? 'On' : 'Off',
new Date(round.timestamp).toISOString()
]);
const csvContent = [
headers.join(','),
...rows.map(row => row.join(','))
].join('\n');
const blob = new Blob([csvContent], { type: 'text/csv;charset=utf-8;' });
const link = document.createElement('a');
link.href = URL.createObjectURL(blob);
link.download = `zoom_acceleration_results_${new Date().toISOString()}.csv`;
link.click();
};

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import { Target, CONSTANTS } from '../types';
export const generateTargets = () => {
const newTargets: Target[] = [];
const PADDING = CONSTANTS.TARGET_MAX_RADIUS * 2;
// Calculate width segments to distribute targets evenly
const segmentWidth = (CONSTANTS.VIRTUAL_CANVAS_SIZE - PADDING * 2) / Math.sqrt(CONSTANTS.TARGET_COUNT);
const numColumns = Math.ceil(Math.sqrt(CONSTANTS.TARGET_COUNT));
for (let i = 0; i < CONSTANTS.TARGET_COUNT; i++) {
let validPosition = false;
let newTarget: Target;
// Calculate the grid position
const column = i % numColumns;
const row = Math.floor(i / numColumns);
while (!validPosition) {
const radius = CONSTANTS.TARGET_MIN_RADIUS +
Math.random() * (CONSTANTS.TARGET_MAX_RADIUS - CONSTANTS.TARGET_MIN_RADIUS);
// Base position from grid
const baseX = PADDING + column * segmentWidth;
const baseY = PADDING + row * segmentWidth;
// Add some randomness within the cell
const x = baseX + Math.random() * (segmentWidth - radius * 2);
const y = baseY + Math.random() * (segmentWidth - radius * 2);
newTarget = { x, y, radius };
validPosition = true;
// Check for overlaps
for (const existing of newTargets) {
const distance = Math.hypot(existing.x - x, existing.y - y);
if (distance < (existing.radius + radius) * 2) {
validPosition = false;
break;
}
}
}
newTargets.push(newTarget!);
}
return newTargets;
};
export const getRandomTarget = (currentTarget: number | null, maxTargets: number): number => {
let newTarget: number;
do {
newTarget = Math.floor(Math.random() * maxTargets);
} while (newTarget === currentTarget);
return newTarget;
};

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import { calculateDistance } from './math';
export const calculateTouchDistance = (touch1: Touch, touch2: Touch): number =>
calculateDistance(touch1.clientX, touch1.clientY, touch2.clientX, touch2.clientY);
export const calculateZoomFactor = (currentDistance: number, startDistance: number): number =>
startDistance > 0 ? currentDistance / startDistance : 1;

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import { ViewportOffset, CONSTANTS } from '../types';
import { clamp } from './math';
export const calculateZoomDelta = (
wheelDelta: number,
accelerationFactor: number,
baseMultiplier = 0.001
): number => {
return clamp(wheelDelta * baseMultiplier * accelerationFactor, -0.5, 0.5);
};
export const calculateInitialViewport = (initialZoom: number): ViewportOffset => ({
x: (CONSTANTS.VIRTUAL_CANVAS_SIZE - window.innerWidth / initialZoom) / 2,
y: (CONSTANTS.VIRTUAL_CANVAS_SIZE - window.innerHeight / initialZoom) / 2,
});
export const clampZoom = (zoom: number): number => {
return Math.max(CONSTANTS.ZOOM_LEVELS.min, Math.min(CONSTANTS.ZOOM_LEVELS.max, zoom));
};

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/// <reference types="vite/client" />

26
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{
"compilerOptions": {
"tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
"target": "ES2020",
"useDefineForClassFields": true,
"lib": ["ES2020", "DOM", "DOM.Iterable"],
"module": "ESNext",
"skipLibCheck": true,
/* Bundler mode */
"moduleResolution": "bundler",
"allowImportingTsExtensions": true,
"isolatedModules": true,
"moduleDetection": "force",
"noEmit": true,
"jsx": "react-jsx",
/* Linting */
"strict": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"noFallthroughCasesInSwitch": true,
"noUncheckedSideEffectImports": true
},
"include": ["src"]
}

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{
"files": [],
"references": [
{ "path": "./tsconfig.app.json" },
{ "path": "./tsconfig.node.json" }
]
}

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{
"compilerOptions": {
"tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
"target": "ES2022",
"lib": ["ES2023"],
"module": "ESNext",
"skipLibCheck": true,
/* Bundler mode */
"moduleResolution": "bundler",
"allowImportingTsExtensions": true,
"isolatedModules": true,
"moduleDetection": "force",
"noEmit": true,
/* Linting */
"strict": true,
"noUnusedLocals": true,
"noUnusedParameters": true,
"noFallthroughCasesInSwitch": true,
"noUncheckedSideEffectImports": true
},
"include": ["vite.config.ts"]
}

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import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
// https://vite.dev/config/
export default defineConfig({
plugins: [react()],
})