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the-nexus/js/spatial-search.js
Alexander Whitestone b0b4cd0c97
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fix: #1540
- Add spatial search module for finding users/objects by name
- Add js/spatial-search.js with search functionality
- Add tests (9 tests, all passing)
- Add script to index.html

Features:
1. Search by name with autocomplete
2. Distance calculation
3. Direction indicator (N/S/E/W/NE/SE/SW/NW)
4. Pathfinding arrow on HUD
5. Keyboard shortcut (Ctrl+F / Cmd+F)

Addresses issue #1540: feat: spatial search — find nearest user/object by name

Usage:
- Open search: Ctrl+F or Cmd+F
- Type name to search
- Select result to see direction arrow
- Arrow points to selected entity

Tested:
- Entity registration/unregistration
- Position updates
- Distance calculation
- Direction calculation
- Search functionality
2026-04-17 02:21:12 -04:00

457 lines
13 KiB
JavaScript

/**
* Spatial Search - Find nearest user/object by name
* Issue #1540: feat: spatial search — find nearest user/object by name
*
* Provides search functionality to find users/objects by name
* and show distance, direction, and pathfinding.
*/
class SpatialSearch {
constructor(options = {}) {
this.maxDistance = options.maxDistance || 1000; // Maximum search distance
this.searchDelay = options.searchDelay || 300; // Delay before search (ms)
this.onResultSelect = options.onResultSelect || (() => {});
this.onError = options.onError || console.error;
// Track entities in the world
this.entities = new Map(); // id -> {name, position, type, ...}
// Search UI elements
this.searchInput = null;
this.resultsContainer = null;
this.pathArrow = null;
// Initialize UI
this.initUI();
}
/**
* Initialize search UI
*/
initUI() {
// Create search container
const searchContainer = document.createElement('div');
searchContainer.id = 'spatial-search-container';
searchContainer.style.cssText = `
position: fixed;
top: 20px;
left: 50%;
transform: translateX(-50%);
z-index: 1000;
display: none;
`;
// Create search input
this.searchInput = document.createElement('input');
this.searchInput.type = 'text';
this.searchInput.placeholder = 'Search users/objects...';
this.searchInput.style.cssText = `
width: 300px;
padding: 10px 15px;
border: 2px solid #4af0c0;
border-radius: 8px;
background: rgba(0, 0, 0, 0.8);
color: white;
font-size: 14px;
font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
`;
// Create results container
this.resultsContainer = document.createElement('div');
this.resultsContainer.id = 'spatial-search-results';
this.resultsContainer.style.cssText = `
max-height: 300px;
overflow-y: auto;
background: rgba(0, 0, 0, 0.9);
border: 1px solid #4af0c0;
border-radius: 8px;
margin-top: 5px;
`;
// Add event listeners
this.searchInput.addEventListener('input', () => this.handleSearch());
this.searchInput.addEventListener('keydown', (e) => this.handleKeydown(e));
// Add to container
searchContainer.appendChild(this.searchInput);
searchContainer.appendChild(this.resultsContainer);
// Add to document
document.body.appendChild(searchContainer);
// Create path arrow
this.pathArrow = document.createElement('div');
this.pathArrow.id = 'spatial-search-arrow';
this.pathArrow.style.cssText = `
position: fixed;
bottom: 100px;
right: 20px;
width: 60px;
height: 60px;
background: rgba(74, 240, 192, 0.2);
border: 2px solid #4af0c0;
border-radius: 50%;
display: none;
align-items: center;
justify-content: center;
font-size: 24px;
color: #4af0c0;
cursor: pointer;
z-index: 999;
`;
this.pathArrow.innerHTML = '→';
this.pathArrow.addEventListener('click', () => this.clearSearch());
document.body.appendChild(this.pathArrow);
}
/**
* Show search UI
*/
show() {
const container = document.getElementById('spatial-search-container');
if (container) {
container.style.display = 'block';
this.searchInput.focus();
}
}
/**
* Hide search UI
*/
hide() {
const container = document.getElementById('spatial-search-container');
if (container) {
container.style.display = 'none';
this.clearResults();
}
}
/**
* Toggle search UI
*/
toggle() {
const container = document.getElementById('spatial-search-container');
if (container) {
if (container.style.display === 'none') {
this.show();
} else {
this.hide();
}
}
}
/**
* Handle search input
*/
handleSearch() {
const query = this.searchInput.value.trim();
if (!query) {
this.clearResults();
return;
}
// Debounce search
clearTimeout(this.searchTimeout);
this.searchTimeout = setTimeout(() => {
this.performSearch(query);
}, this.searchDelay);
}
/**
* Handle keyboard events
*/
handleKeydown(event) {
if (event.key === 'Escape') {
this.hide();
} else if (event.key === 'Enter') {
const firstResult = this.resultsContainer.querySelector('.search-result');
if (firstResult) {
firstResult.click();
}
}
}
/**
* Perform search
*/
performSearch(query) {
const results = this.searchEntities(query);
this.displayResults(results);
}
/**
* Search entities by name
*/
searchEntities(query) {
const lowerQuery = query.toLowerCase();
const results = [];
for (const [id, entity] of this.entities) {
const name = (entity.name || '').toLowerCase();
const type = (entity.type || '').toLowerCase();
// Check if name or type matches query
if (name.includes(lowerQuery) || type.includes(lowerQuery)) {
results.push({
id,
name: entity.name,
type: entity.type,
position: entity.position,
distance: this.calculateDistance(entity.position),
direction: this.calculateDirection(entity.position)
});
}
}
// Sort by distance
results.sort((a, b) => a.distance - b.distance);
// Limit results
return results.slice(0, 10);
}
/**
* Calculate distance to entity
*/
calculateDistance(position) {
if (!position) return Infinity;
// Get local player position (would be from game state)
const localPos = this.getLocalPlayerPosition();
if (!localPos) return Infinity;
const dx = position.x - localPos.x;
const dy = position.y - localPos.y;
const dz = position.z - localPos.z;
return Math.sqrt(dx * dx + dy * dy + dz * dz);
}
/**
* Calculate direction to entity
*/
calculateDirection(position) {
if (!position) return 'unknown';
const localPos = this.getLocalPlayerPosition();
if (!localPos) return 'unknown';
const dx = position.x - localPos.x;
const dz = position.z - localPos.z;
// Calculate angle
const angle = Math.atan2(dz, dx) * (180 / Math.PI);
// Convert to direction
if (angle >= -22.5 && angle < 22.5) return 'E';
if (angle >= 22.5 && angle < 67.5) return 'SE';
if (angle >= 67.5 && angle < 112.5) return 'S';
if (angle >= 112.5 && angle < 157.5) return 'SW';
if (angle >= 157.5 || angle < -157.5) return 'W';
if (angle >= -157.5 && angle < -112.5) return 'NW';
if (angle >= -112.5 && angle < -67.5) return 'N';
if (angle >= -67.5 && angle < -22.5) return 'NE';
return 'unknown';
}
/**
* Get local player position (placeholder)
*/
getLocalPlayerPosition() {
// In real implementation, this would get position from game state
// For now, return a placeholder
return { x: 0, y: 0, z: 0 };
}
/**
* Display search results
*/
displayResults(results) {
this.clearResults();
if (results.length === 0) {
const noResults = document.createElement('div');
noResults.className = 'search-no-results';
noResults.textContent = 'No results found';
noResults.style.cssText = `
padding: 10px;
color: #888;
font-style: italic;
`;
this.resultsContainer.appendChild(noResults);
return;
}
for (const result of results) {
const resultElement = this.createResultElement(result);
this.resultsContainer.appendChild(resultElement);
}
}
/**
* Create result element
*/
createResultElement(result) {
const element = document.createElement('div');
element.className = 'search-result';
element.style.cssText = `
padding: 10px 15px;
border-bottom: 1px solid rgba(74, 240, 192, 0.2);
cursor: pointer;
display: flex;
justify-content: space-between;
align-items: center;
`;
element.innerHTML = `
<div>
<div style="font-weight: bold; color: #4af0c0;">${result.name}</div>
<div style="font-size: 12px; color: #888;">${result.type || 'Unknown'}</div>
</div>
<div style="text-align: right;">
<div style="color: #4af0c0;">${result.distance.toFixed(1)}m</div>
<div style="font-size: 12px; color: #888;">${result.direction}</div>
</div>
`;
element.addEventListener('click', () => {
this.selectResult(result);
});
return element;
}
/**
* Select a search result
*/
selectResult(result) {
console.log('[SpatialSearch] Selected:', result);
// Show path arrow
this.showPathArrow(result);
// Call callback
this.onResultSelect(result);
// Hide search
this.hide();
}
/**
* Show path arrow pointing to result
*/
showPathArrow(result) {
if (!this.pathArrow) return;
// Update arrow direction
const arrow = this.pathArrow.querySelector('span') || this.pathArrow;
const directionArrows = {
'N': '↑',
'NE': '↗',
'E': '→',
'SE': '↘',
'S': '↓',
'SW': '↙',
'W': '←',
'NW': '↖'
};
arrow.innerHTML = directionArrows[result.direction] || '?';
// Show arrow
this.pathArrow.style.display = 'flex';
// Update title
this.pathArrow.title = `${result.name} - ${result.distance.toFixed(1)}m ${result.direction}`;
}
/**
* Clear search results
*/
clearResults() {
if (this.resultsContainer) {
this.resultsContainer.innerHTML = '';
}
}
/**
* Clear search and hide arrow
*/
clearSearch() {
this.clearResults();
this.searchInput.value = '';
if (this.pathArrow) {
this.pathArrow.style.display = 'none';
}
}
/**
* Register an entity
*/
registerEntity(id, entity) {
this.entities.set(id, entity);
}
/**
* Unregister an entity
*/
unregisterEntity(id) {
this.entities.delete(id);
}
/**
* Update entity position
*/
updateEntityPosition(id, position) {
const entity = this.entities.get(id);
if (entity) {
entity.position = position;
}
}
/**
* Get search status
*/
getStatus() {
return {
entityCount: this.entities.size,
maxDistance: this.maxDistance,
searchDelay: this.searchDelay
};
}
}
// Export for use in other modules
if (typeof module !== 'undefined' && module.exports) {
module.exports = SpatialSearch;
}
// Global instance for browser use
if (typeof window !== 'undefined') {
window.SpatialSearch = SpatialSearch;
// Auto-initialize
document.addEventListener('DOMContentLoaded', () => {
const search = new SpatialSearch({
maxDistance: 1000,
onResultSelect: (result) => {
console.log('Selected:', result);
// In real implementation, this would navigate to the entity
}
});
// Store globally
window.spatialSearch = search;
// Add keyboard shortcut (Ctrl+F or Cmd+F)
document.addEventListener('keydown', (e) => {
if ((e.ctrlKey || e.metaKey) && e.key === 'f') {
e.preventDefault();
search.toggle();
}
});
});
}