411 lines
16 KiB
Svelte
411 lines
16 KiB
Svelte
<script>
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import { onMount, onDestroy } from 'svelte';
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import * as d3 from 'd3';
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import { feature } from 'topojson-client';
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import worldData from 'world-atlas/countries-50m.json';
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import { get } from 'svelte/store';
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import { journals } from '../stores/entriesStore.svelte.js';
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import airplaneImg from '../../assets/airplane-animation.png';
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let { onclose, onprogress, mode = 'map', onmodechange } = $props();
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const HOME_CODE = '203';
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const PLANE_SIZE = 26;
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const HOME_COLOR = '#8b5cf6';
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const VISITED_COLOR = '#22c55e';
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const ARC_COLOR = '#666666';
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const UNVISITED = '#ffffff';
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const TERRITORY_PARENT = {
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'016': '840', '060': '826', '086': '826', '092': '826', '136': '826',
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'184': '554', '234': '208', '238': '826', '239': '826', '248': '246',
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'258': '250', '260': '250', '304': '208', '316': '840', '334': '036',
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'446': '156', '500': '826', '531': '528', '533': '528', '534': '528',
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'540': '250', '570': '554', '574': '036', '580': '840', '612': '826',
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'630': '840', '652': '250', '654': '826', '660': '826', '663': '250',
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'666': '250', '796': '826', '831': '826', '832': '826', '833': '826',
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'850': '840', '876': '250',
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};
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function effId(d) { return TERRITORY_PARENT[d.id] || d.id; }
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let frameEl;
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let svg, gBase, gCountries, gAnim, pathFn, projection;
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let countryPaths;
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let homeFeature;
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let featuresById = {};
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let countriesData = [];
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let isCancelled = false;
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let isPlaying = $state(false);
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let isFinished = $state(false);
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let visitedCodes = new Set();
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let animId = 0;
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let currentDateLabel = $state('');
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function formatDateLabel(dateStr) {
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const d = new Date(dateStr);
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const months = ['January','February','March','April','May','June','July','August','September','October','November','December'];
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return `${months[d.getMonth()]} ${d.getFullYear()}`;
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}
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function computeArc(p1, p2) {
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const interp = d3.geoInterpolate(p1, p2);
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const raw = [];
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for (let i = 0; i <= 80; i++) {
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const t = i / 80;
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const pt = projection(interp(t));
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if (!pt) continue;
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raw.push({ t, x: pt[0], y: pt[1] });
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}
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if (raw.length < 2) return [];
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const first = raw[0], last = raw[raw.length - 1];
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const dist = Math.sqrt((last.x-first.x)**2 + (last.y-first.y)**2);
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const arcH = Math.max(40, Math.min(200, dist * 0.22));
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return raw.map(p => [p.x, p.y - arcH * Math.sin(Math.PI * p.t)]);
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}
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function planeTransform(x, y, angle, flip) {
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return `translate(${x},${y}) rotate(${angle})${flip ? ' scale(1,-1)' : ''}`;
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}
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function delay(ms) {
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return new Promise(resolve => { if (isCancelled) { resolve(); return; } setTimeout(resolve, ms); });
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}
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function setupProjection(width, height) {
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if (mode === 'map') {
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projection = d3.geoMercator();
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projection.fitSize([width, height], { type: 'Sphere' });
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const s = projection.scale() * 1.5;
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projection.scale(s).translate([width / 2, height * 0.70]);
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} else {
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const size = Math.min(width, height) * 0.92;
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projection = d3.geoOrthographic()
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.rotate([0, 0])
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.fitSize([size, size], { type: 'Sphere' })
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.translate([width / 2, height / 2]);
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}
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pathFn = d3.geoPath().projection(projection);
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}
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function renderMap() {
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gBase.selectAll('*').remove();
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gCountries.selectAll('*').remove();
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gAnim.selectAll('*').remove();
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const fillFn = d => {
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const id = effId(d);
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if (id === HOME_CODE) return visitedCodes.has(id) ? VISITED_COLOR : HOME_COLOR;
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if (visitedCodes.has(id)) return VISITED_COLOR;
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return UNVISITED;
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};
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if (mode === 'globe') {
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gBase.append('path').attr('class', 'sphere').datum({ type: 'Sphere' })
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.attr('d', pathFn).attr('fill', '#a4c8e0').attr('stroke', '#8b9bb0').attr('stroke-width', 1.5);
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}
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countryPaths = gCountries.selectAll('path')
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.data(countriesData, d => effId(d)).join('path')
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.attr('d', pathFn).attr('fill', fillFn)
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.attr('stroke', mode === 'globe' ? '#4a6a8c' : '#d4d4d4')
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.attr('stroke-width', mode === 'globe' ? 0.3 : 0.5);
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if (mode === 'map') renderMicrostates();
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}
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function renderMicrostates() {
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gBase.selectAll('.micro-state-j').remove();
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const fillFn = d => {
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const id = effId(d);
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if (id === HOME_CODE) return visitedCodes.has(id) ? VISITED_COLOR : HOME_COLOR;
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if (visitedCodes.has(id)) return VISITED_COLOR;
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return UNVISITED;
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};
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countryPaths.each(function(d) {
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if (effId(d) !== d.id) return;
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const { width, height } = this.getBBox();
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if (width < 4 && height < 4) {
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const [cx, cy] = pathFn.centroid(d);
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gBase.append('circle').attr('class', 'micro-state-j').datum(d)
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.attr('cx', cx).attr('cy', cy).attr('r', 2).attr('fill', fillFn(d))
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.attr('stroke', '#94a3b8').attr('stroke-width', 0.5);
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}
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});
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}
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function redrawBase() {
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countryPaths.attr('d', pathFn);
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if (mode === 'globe') gBase.select('.sphere').attr('d', pathFn);
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}
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function rotateGlobeTo(lon, lat, duration = 1500) {
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return new Promise(resolve => {
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if (isCancelled) { resolve(); return; }
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const current = projection.rotate();
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const interp = d3.geoInterpolate([-current[0], -current[1]], [lon, lat]);
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const timer = d3.timer(elapsed => {
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if (isCancelled) { timer.stop(); resolve(); return true; }
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const t = Math.min(elapsed / duration, 1);
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const point = interp(t);
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projection.rotate([-point[0], -point[1]]);
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redrawBase();
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if (t >= 1) { timer.stop(); resolve(); return true; }
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});
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});
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}
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function createArcEl(iconSrc) {
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const el = gAnim.append('path')
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.attr('fill', 'none').attr('stroke', ARC_COLOR)
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.attr('stroke-width', 2.5).attr('stroke-opacity', 0.8)
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.attr('stroke-linecap', 'round').attr('stroke-dasharray', '10, 6');
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const tip = gAnim.append('image')
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.attr('href', iconSrc).attr('width', PLANE_SIZE).attr('height', PLANE_SIZE)
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.attr('x', -PLANE_SIZE / 2).attr('y', -PLANE_SIZE / 2)
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.attr('preserveAspectRatio', 'xMidYMid meet').attr('opacity', 0);
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return { el, tip };
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}
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function animateIncrementalPath(el, tip, pts, duration, flip = false) {
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return new Promise(resolve => {
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const lineGen = d3.line().curve(d3.curveBasis);
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d3.timer(elapsed => {
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if (isCancelled) { resolve(); return true; }
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const t = Math.min(elapsed / duration, 1);
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const count = Math.max(2, Math.floor(t * (pts.length - 1)) + 1);
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const visible = pts.slice(0, count);
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if (visible.length >= 2) el.attr('d', lineGen(visible));
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if (visible.length > 0) {
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const last = visible[visible.length - 1];
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let angle = 0;
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if (visible.length >= 2) {
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const prev = visible[visible.length - 2];
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angle = Math.atan2(last[1] - prev[1], last[0] - prev[0]) * 180 / Math.PI;
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}
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tip.attr('transform', planeTransform(last[0], last[1], angle, flip)).attr('opacity', 1);
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}
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if (t >= 1) { resolve(); return true; }
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});
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});
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}
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function animateReprojectingArc(el, tip, geoPts, lineGen, duration, flip = false) {
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return new Promise(resolve => {
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const timer = d3.timer(elapsed => {
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if (isCancelled) { timer.stop(); resolve(); return true; }
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const t = Math.min(elapsed / duration, 1);
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const count = Math.max(2, Math.floor(t * (geoPts.length - 1)) + 1);
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const screenPts = geoPts.slice(0, count).map(p => projection(p)).filter(Boolean);
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if (screenPts.length >= 2) el.attr('d', lineGen(screenPts));
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if (screenPts.length > 0) {
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const last = screenPts[screenPts.length - 1];
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let angle = 0;
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if (screenPts.length >= 2) {
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const prev = screenPts[screenPts.length - 2];
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angle = Math.atan2(last[1] - prev[1], last[0] - prev[0]) * 180 / Math.PI;
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}
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tip.attr('transform', planeTransform(last[0], last[1], angle, flip)).attr('opacity', 1);
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}
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if (t >= 1) { timer.stop(); resolve(); return true; }
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});
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});
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}
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async function animateTrip(destCode, destFeature, transport = 'flight') {
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if (!homeFeature || !destFeature) return;
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const iconSrc = airplaneImg;
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const homeCentroid = d3.geoCentroid(homeFeature);
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const destCentroid = d3.geoCentroid(destFeature);
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if (mode === 'map') {
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await animateMapTrip(homeCentroid, destCentroid, destCode, iconSrc);
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} else {
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await animateGlobeTrip(homeCentroid, destCentroid, destCode, iconSrc);
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}
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}
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async function animateMapTrip(homeCentroid, destCentroid, destCode, iconSrc) {
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const pts = computeArc(homeCentroid, destCentroid);
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if (pts.length < 2) return;
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const { el: outEl, tip: outTip } = createArcEl(iconSrc);
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await animateIncrementalPath(outEl, outTip, pts, 2500, pts[pts.length-1][0] < pts[0][0]);
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if (isCancelled) return;
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outEl.remove(); outTip.remove();
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countryPaths.filter(d => effId(d) === destCode).transition().duration(500).attr('fill', VISITED_COLOR);
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visitedCodes.add(destCode);
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gBase.selectAll('.micro-state-j').filter(d => effId(d) === destCode).transition().duration(500).attr('fill', VISITED_COLOR);
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await delay(800);
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if (isCancelled) return;
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const revPts = [...pts].reverse();
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const { el: retEl, tip: retTip } = createArcEl(iconSrc);
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await animateIncrementalPath(retEl, retTip, revPts, 2200, revPts[revPts.length-1][0] < revPts[0][0]);
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if (isCancelled) return;
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retEl.remove(); retTip.remove();
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await delay(300);
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}
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async function animateGlobeTrip(homeCentroid, destCentroid, destCode, iconSrc) {
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const interp = d3.geoInterpolate(homeCentroid, destCentroid);
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const geoPts = Array.from({ length: 81 }, (_, i) => interp(i / 80));
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const dur = Math.round(1500 + d3.geoDistance(homeCentroid, destCentroid) * 2500);
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const lineGen = d3.line().curve(d3.curveBasis);
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const { el: outEl, tip: outTip } = createArcEl(iconSrc);
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const outGcs = geoPts.map(p => projection(p)).filter(Boolean);
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await Promise.all([
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rotateGlobeTo(destCentroid[0], destCentroid[1], dur),
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animateReprojectingArc(outEl, outTip, geoPts, lineGen, dur, outGcs.length >= 2 && outGcs[outGcs.length-1][0] < outGcs[0][0]),
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]);
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if (isCancelled) return;
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outEl.remove(); outTip.remove();
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countryPaths.filter(d => effId(d) === destCode).transition().duration(500).attr('fill', VISITED_COLOR);
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visitedCodes.add(destCode);
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await delay(600);
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if (isCancelled) return;
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const revGeoPts = [...geoPts].reverse();
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const { el: retEl, tip: retTip } = createArcEl(iconSrc);
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const retGcs = revGeoPts.map(p => projection(p)).filter(Boolean);
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await Promise.all([
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rotateGlobeTo(homeCentroid[0], homeCentroid[1], dur),
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animateReprojectingArc(retEl, retTip, revGeoPts, lineGen, dur, retGcs.length >= 2 && retGcs[retGcs.length-1][0] < retGcs[0][0]),
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]);
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if (isCancelled) return;
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retEl.remove(); retTip.remove();
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await delay(300);
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}
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async function startJourney() {
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const myId = ++animId;
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isPlaying = true; isFinished = false; isCancelled = false; visitedCodes = new Set();
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const width = frameEl.clientWidth, height = frameEl.clientHeight;
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svg.selectAll('*').remove();
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gBase = svg.append('g'); gCountries = svg.append('g'); gAnim = svg.append('g');
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setupProjection(width, height);
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if (mode === 'globe' && homeFeature) {
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const c = d3.geoCentroid(homeFeature);
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projection.rotate([-c[0], -c[1]]);
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pathFn = d3.geoPath().projection(projection);
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}
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renderMap();
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const nameToId = Object.fromEntries(Object.entries(featuresById).filter(([,f]) => f.properties?.name).map(([id, f]) => [f.properties.name, id]));
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const entries = get(journals).slice().sort((a, b) => a.date.localeCompare(b.date));
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const trips = entries.map(e => ({
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countryName: e.location.country,
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countryCode: nameToId[e.location.country] ?? null,
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city: e.location.cities?.[0] ?? e.location.country,
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transport: e.transport ?? 'flight',
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date: e.date,
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})).filter(t => t.countryCode);
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for (let i = 0; i < trips.length; i++) {
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if (isCancelled || myId !== animId) break;
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const trip = trips[i];
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if (trip.date) currentDateLabel = formatDateLabel(trip.date);
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const destFeature = featuresById[trip.countryCode];
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if (!destFeature) continue;
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if (onprogress) onprogress({ index: i + 1, total: trips.length, label: `${trip.city}, ${trip.countryName}` });
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await animateTrip(trip.countryCode, destFeature, trip.transport);
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}
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if (!isCancelled && myId === animId) {
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isFinished = true; isPlaying = false;
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if (onprogress) onprogress({ index: trips.length, total: trips.length, label: 'Journey complete!' });
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setTimeout(() => close(), 2500);
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} else if (myId === animId) { isPlaying = false; }
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}
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function stopJourney() { isCancelled = true; isPlaying = false; }
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function replay() { stopJourney(); setTimeout(() => startJourney(), 100); }
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function switchMode(target) {
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if (target === mode) return;
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onmodechange?.(target);
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stopJourney();
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setTimeout(() => startJourney(), 100);
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}
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function close() { stopJourney(); onclose?.(); }
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onMount(() => {
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const width = frameEl.clientWidth, height = frameEl.clientHeight;
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setupProjection(width, height);
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countriesData = feature(worldData, worldData.objects.countries)
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.features.filter(f => (f.id || f.properties.name === 'Kosovo') && f.id !== '010');
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countriesData.forEach(f => { if (!f.id) f.id = 'XK'; });
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for (const f of countriesData) featuresById[effId(f)] = f;
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homeFeature = featuresById[HOME_CODE];
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svg = d3.select(frameEl).append('svg').attr('width', width).attr('height', height).style('cursor', 'default');
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gBase = svg.append('g'); gCountries = svg.append('g'); gAnim = svg.append('g');
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renderMap();
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const observer = new ResizeObserver((entries) => {
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for (const entry of entries) {
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const { width, height } = entry.contentRect;
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svg.attr('width', width).attr('height', height);
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const prevRotate = mode === 'globe' ? projection.rotate() : null;
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if (mode === 'map') {
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projection = d3.geoMercator();
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projection.fitSize([width, height], { type: 'Sphere' });
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projection.scale(projection.scale() * 1.5).translate([width / 2, height * 0.70]);
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} else {
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const size = Math.min(width, height) * 0.92;
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projection = d3.geoOrthographic().rotate(prevRotate).fitSize([size, size], { type: 'Sphere' }).translate([width / 2, height / 2]);
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}
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pathFn = d3.geoPath().projection(projection);
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redrawBase();
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if (mode === 'map') renderMicrostates();
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}
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});
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observer.observe(frameEl);
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startJourney();
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return () => { stopJourney(); observer.disconnect(); if (svg) svg.remove(); };
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});
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</script>
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<div bind:this={frameEl} class="journey-frame" class:globe-mode={mode === 'globe'}>
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<div class="top-label">
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{#if isFinished}Journey complete!{:else if currentDateLabel}{currentDateLabel}{/if}
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</div>
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<div class="control-bar">
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<button class="control-btn" onclick={replay}>
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⟳ Replay
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</button>
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<button class="control-btn" onclick={() => switchMode(mode === 'map' ? 'globe' : 'map')}>
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{mode === 'map' ? 'Globe animation' : 'Map animation'}
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</button>
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<button class="control-btn" onclick={close}>
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✕ Back to Journaling
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</button>
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</div>
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</div>
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<style>
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.journey-frame { width: 100%; height: 100%; overflow: hidden; position: relative; background: #a4c8e0; }
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.journey-frame.globe-mode { background: #ffffff; }
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.journey-frame :global(svg) { display: block; }
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.top-label {
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position: absolute; top: 16px; left: 16px; z-index: 10;
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background: rgba(0,0,0,0.65); color: #fff;
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font-family: var(--heading, sans-serif); font-size: 16px; font-weight: 600;
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padding: 10px 24px; border-radius: 24px; white-space: nowrap;
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letter-spacing: 0.04em; min-width: 200px; text-align: center;
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}
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.control-bar {
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position: absolute; bottom: 24px; right: 24px; z-index: 10;
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display: flex; flex-direction: column; gap: 8px; align-items: flex-end;
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}
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.control-btn {
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padding: 10px 24px; border: none; border-radius: 24px;
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background: #8b5cf6; color: #fff; font-size: 14px; font-weight: 600;
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cursor: pointer; transition: background 0.15s ease; white-space: nowrap; font-family: inherit;
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}
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.control-btn:hover { background: #7c3aed; }
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.control-btn:active { transform: scale(0.96); }
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</style>
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