Phase 2: 3D live map driven by API WebSocket #2
@@ -10,7 +10,7 @@
|
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"preview": "vite preview --port 3001",
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"typecheck": "tsc --noEmit",
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"lint": "echo 'no linter yet'",
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"test": "echo 'no tests yet'"
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||||
"test": "vitest run"
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},
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"dependencies": {
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"@kerbal-rt/shared-types": "workspace:*",
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@@ -26,6 +26,7 @@
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"@types/three": "^0.169.0",
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"@vitejs/plugin-react": "^4.3.1",
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"typescript": "^5.6.2",
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"vite": "^5.4.6"
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"vite": "^5.4.6",
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"vitest": "^2.1.1"
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}
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}
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+197
-284
@@ -1,313 +1,226 @@
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import { useEffect, useRef, useState } from 'react';
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import * as THREE from 'three';
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import { Pill, formatUtAsKspDate } from '@kerbal-rt/ui';
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import { sampleOrbit, positionAt } from '@kerbal-rt/orbital-math';
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import type { CelestialBody } from '@kerbal-rt/shared-types';
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/**
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* App — top-level live map.
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*
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* Subscribes to the API WebSocket, manages the simulation time
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* (UT), and renders the 3D scene plus all the UI panels.
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*
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* Time model:
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||||
* - `liveUt`: the UT of the most recent snapshot received
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||||
* - `displayUt`: what the scene is currently showing. Starts at
|
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* liveUt, advances on play, and can be scrubbed via the slider.
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* - When `displayUt === liveUt`, the pill shows "LIVE".
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* When the user scrubs backwards or speed-0 pauses, the pill
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* shows how far behind/ahead we are.
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*/
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import { useEffect, useState } from 'react';
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import { Scene } from './scene/Scene.js';
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import { TimeControls } from './panels/TimeControls.js';
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import { VesselList } from './panels/VesselList.js';
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import { FocusPanel } from './panels/FocusPanel.js';
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||||
import { StatusPill } from './panels/StatusPill.js';
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import { useLiveState } from './hooks/useLiveState.js';
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import type { UniverseSnapshot } from '@kerbal-rt/shared-types';
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const API_URL = (import.meta.env.VITE_API_URL as string | undefined) ?? '';
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/**
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* Mock solar system so the scene has something to render before the
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* real KSP bridge is wired in (Phase 1). Drop a real snapshot in
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* via the same /api/v1/state endpoint and the same renderer will
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* work — only `useUniverse()` changes.
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*/
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function useUniverse() {
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const [bodies, setBodies] = useState<CelestialBody[]>([]);
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const [ut, setUt] = useState(0);
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const [error, setError] = useState<string | null>(null);
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useEffect(() => {
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const mockBodies: CelestialBody[] = [
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makeBody({
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id: 'kerbol',
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name: 'Kerbol',
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kind: 'star',
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||||
radius: 261_600_000,
|
||||
sphereOfInfluence: Infinity,
|
||||
mu: 1.172332794e18,
|
||||
rotationPeriod: 432_000,
|
||||
axialTilt: 0,
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||||
color: '#ffcc33',
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parent: null,
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sma: 0,
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}),
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makeBody({
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id: 'kerbin',
|
||||
name: 'Kerbin',
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kind: 'planet',
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radius: 600_000,
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||||
sphereOfInfluence: 84_159_286,
|
||||
mu: 3.5316e12,
|
||||
rotationPeriod: 21_600,
|
||||
axialTilt: 0,
|
||||
color: '#3a7d8c',
|
||||
parent: 'kerbol',
|
||||
sma: 13_599_840_256,
|
||||
}),
|
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makeBody({
|
||||
id: 'mun',
|
||||
name: 'Mun',
|
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kind: 'moon',
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radius: 200_000,
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||||
sphereOfInfluence: 2_429_559,
|
||||
mu: 6.514e10,
|
||||
rotationPeriod: 138_984,
|
||||
axialTilt: 0,
|
||||
color: '#aaa',
|
||||
parent: 'kerbin',
|
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sma: 12_000_000,
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}),
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];
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setBodies(mockBodies);
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setUt(4_700_000);
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|
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// Try to fetch real state if API is reachable
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fetch(`${API_URL}/api/v1/state`)
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.then((r) => (r.ok ? r.json() : null))
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.then((j) => {
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if (j?.data?.bodies?.length) {
|
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setBodies(j.data.bodies);
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setUt(j.data.ut);
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}
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})
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.catch((e) => setError(String(e)));
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}, []);
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return { bodies, ut, setUt, error };
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}
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||||
|
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function makeBody(opts: {
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id: string;
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||||
name: string;
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kind: CelestialBody['kind'];
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||||
radius: number;
|
||||
sphereOfInfluence: number;
|
||||
mu: number;
|
||||
rotationPeriod: number;
|
||||
axialTilt: number;
|
||||
color: string;
|
||||
parent: string | null;
|
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sma: number;
|
||||
}): CelestialBody {
|
||||
return {
|
||||
id: opts.id,
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||||
name: opts.name,
|
||||
kind: opts.kind,
|
||||
parentId: opts.parent,
|
||||
radius: opts.radius,
|
||||
sphereOfInfluence: opts.sphereOfInfluence,
|
||||
gravitationalParameter: opts.mu,
|
||||
rotationPeriod: opts.rotationPeriod,
|
||||
axialTilt: opts.axialTilt,
|
||||
orbit: {
|
||||
semiMajorAxis: opts.sma,
|
||||
eccentricity: 0,
|
||||
inclination: 0,
|
||||
longitudeOfAscendingNode: 0,
|
||||
argumentOfPeriapsis: 0,
|
||||
meanAnomalyAtEpoch: Math.random() * Math.PI * 2,
|
||||
epoch: 0,
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||||
/** Fallback in-memory snapshot so the scene has something to render
|
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* even before the API is up. Matches the catalog used by the
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* mock-telemetry publisher. */
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const FALLBACK_SNAPSHOT: UniverseSnapshot = {
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||||
ut: 0,
|
||||
capturedAt: new Date(0).toISOString(),
|
||||
activeVesselId: null,
|
||||
bodies: [
|
||||
{
|
||||
id: 'kerbol',
|
||||
name: 'Kerbol',
|
||||
kind: 'star',
|
||||
parentId: null,
|
||||
radius: 261_600_000,
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||||
sphereOfInfluence: 1e30,
|
||||
gravitationalParameter: 1.172332794e18,
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||||
rotationPeriod: 432_000,
|
||||
axialTilt: 0,
|
||||
orbit: {
|
||||
semiMajorAxis: 0,
|
||||
eccentricity: 0,
|
||||
inclination: 0,
|
||||
longitudeOfAscendingNode: 0,
|
||||
argumentOfPeriapsis: 0,
|
||||
meanAnomalyAtEpoch: 0,
|
||||
epoch: 0,
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||||
},
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||||
},
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||||
};
|
||||
}
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||||
|
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function Scene({ bodies, ut }: { bodies: CelestialBody[]; ut: number }) {
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const mountRef = useRef<HTMLDivElement>(null);
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useEffect(() => {
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const mount = mountRef.current;
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if (!mount) return;
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const width = mount.clientWidth;
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const height = mount.clientHeight;
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|
||||
const scene = new THREE.Scene();
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scene.background = new THREE.Color(0x000005);
|
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|
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const camera = new THREE.PerspectiveCamera(60, width / height, 0.1, 1e12);
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camera.position.set(0, 5e9, 1.5e10);
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camera.lookAt(0, 0, 0);
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const renderer = new THREE.WebGLRenderer({ antialias: true });
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renderer.setSize(width, height);
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renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
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mount.appendChild(renderer.domElement);
|
||||
|
||||
// Lights
|
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scene.add(new THREE.AmbientLight(0x404040, 0.4));
|
||||
const sunLight = new THREE.PointLight(0xffffff, 2, 0, 0);
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scene.add(sunLight);
|
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|
||||
// Build spheres + orbit lines per body
|
||||
const meshById = new Map<string, THREE.Mesh>();
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const orbitGroup = new THREE.Group();
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scene.add(orbitGroup);
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|
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for (const body of bodies) {
|
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if (body.sphereOfInfluence === 0 || body.sphereOfInfluence === Infinity) {
|
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// Star: render but skip orbit
|
||||
if (body.kind === 'star') {
|
||||
const geo = new THREE.SphereGeometry(Math.max(body.radius, 1e8), 32, 16);
|
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const mat = new THREE.MeshBasicMaterial({ color: 0xffcc33 });
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const mesh = new THREE.Mesh(geo, mat);
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scene.add(mesh);
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meshById.set(body.id, mesh);
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}
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continue;
|
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}
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// Sphere — small planets/moons get a minimum size so they're visible
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const displayRadius = Math.max(body.radius, 1e6);
|
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const geo = new THREE.SphereGeometry(displayRadius, 32, 16);
|
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const mat = new THREE.MeshPhongMaterial({
|
||||
color: bodyColor(body.id),
|
||||
emissive: 0x111111,
|
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});
|
||||
const mesh = new THREE.Mesh(geo, mat);
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scene.add(mesh);
|
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meshById.set(body.id, mesh);
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|
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// Orbit line
|
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const points = sampleOrbit(body.orbit, body.gravitationalParameter, 256);
|
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const positions = new Float32Array(points.length * 3);
|
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points.forEach((p, i) => {
|
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positions[i * 3] = p.x;
|
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positions[i * 3 + 1] = p.y;
|
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positions[i * 3 + 2] = p.z;
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||||
});
|
||||
const lineGeo = new THREE.BufferGeometry();
|
||||
lineGeo.setAttribute('position', new THREE.BufferAttribute(positions, 3));
|
||||
const lineMat = new THREE.LineBasicMaterial({
|
||||
color: bodyColor(body.id),
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||||
opacity: 0.6,
|
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transparent: true,
|
||||
});
|
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orbitGroup.add(new THREE.LineLoop(lineGeo, lineMat));
|
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}
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|
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// Resize
|
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const onResize = () => {
|
||||
if (!mount) return;
|
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const w = mount.clientWidth;
|
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const h = mount.clientHeight;
|
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camera.aspect = w / h;
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camera.updateProjectionMatrix();
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renderer.setSize(w, h);
|
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};
|
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window.addEventListener('resize', onResize);
|
||||
|
||||
// Animation loop: place each body at the current propagated position
|
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let raf = 0;
|
||||
const render = () => {
|
||||
for (const body of bodies) {
|
||||
if (body.sphereOfInfluence === 0 || body.sphereOfInfluence === Infinity) continue;
|
||||
const parent = bodies.find((b) => b.id === body.parentId);
|
||||
if (!parent) continue;
|
||||
const pos = positionAt(body.orbit, parent.gravitationalParameter, ut);
|
||||
const mesh = meshById.get(body.id);
|
||||
if (mesh) mesh.position.set(pos.x, pos.y, pos.z);
|
||||
}
|
||||
renderer.render(scene, camera);
|
||||
raf = requestAnimationFrame(render);
|
||||
};
|
||||
render();
|
||||
|
||||
return () => {
|
||||
cancelAnimationFrame(raf);
|
||||
window.removeEventListener('resize', onResize);
|
||||
renderer.dispose();
|
||||
mount.removeChild(renderer.domElement);
|
||||
};
|
||||
}, [bodies, ut]);
|
||||
|
||||
return <div ref={mountRef} style={{ width: '100%', height: '100%' }} />;
|
||||
}
|
||||
|
||||
function bodyColor(id: string): number {
|
||||
// Map common body names to colors; default to white
|
||||
const map: Record<string, number> = {
|
||||
kerbol: 0xffcc33,
|
||||
kerbin: 0x3a7d8c,
|
||||
mun: 0xaaaaaa,
|
||||
minmus: 0x997a66,
|
||||
duna: 0xc46030,
|
||||
ike: 0x776655,
|
||||
eve: 0x6b4ea0,
|
||||
gilly: 0x665544,
|
||||
jool: 0xa55a2a,
|
||||
laythe: 0x4a6da0,
|
||||
vall: 0x665544,
|
||||
tylo: 0x997a66,
|
||||
bop: 0x444444,
|
||||
pol: 0x333333,
|
||||
moho: 0x664433,
|
||||
eeloo: 0xeeeeff,
|
||||
};
|
||||
return map[id] ?? 0xffffff;
|
||||
}
|
||||
{
|
||||
id: 'kerbin',
|
||||
name: 'Kerbin',
|
||||
kind: 'planet',
|
||||
parentId: 'kerbol',
|
||||
radius: 600_000,
|
||||
sphereOfInfluence: 84_159_286,
|
||||
gravitationalParameter: 3.5316e12,
|
||||
rotationPeriod: 21_600,
|
||||
axialTilt: 0,
|
||||
orbit: {
|
||||
semiMajorAxis: 13_599_840_256,
|
||||
eccentricity: 0.05,
|
||||
inclination: 0,
|
||||
longitudeOfAscendingNode: 0,
|
||||
argumentOfPeriapsis: 0,
|
||||
meanAnomalyAtEpoch: 0.7,
|
||||
epoch: 0,
|
||||
},
|
||||
},
|
||||
{
|
||||
id: 'mun',
|
||||
name: 'Mun',
|
||||
kind: 'moon',
|
||||
parentId: 'kerbin',
|
||||
radius: 200_000,
|
||||
sphereOfInfluence: 2_429_559,
|
||||
gravitationalParameter: 6.514e10,
|
||||
rotationPeriod: 138_984,
|
||||
axialTilt: 0,
|
||||
orbit: {
|
||||
semiMajorAxis: 12_000_000,
|
||||
eccentricity: 0,
|
||||
inclination: 0,
|
||||
longitudeOfAscendingNode: 0,
|
||||
argumentOfPeriapsis: 0,
|
||||
meanAnomalyAtEpoch: 1.0,
|
||||
epoch: 0,
|
||||
},
|
||||
},
|
||||
],
|
||||
vessels: [],
|
||||
groundStations: [],
|
||||
};
|
||||
|
||||
export function App() {
|
||||
const { bodies, ut, setUt, error } = useUniverse();
|
||||
const [playing, setPlaying] = useState(true);
|
||||
const [speed, setSpeed] = useState(60); // 1s of wall = 60s of KSP UT
|
||||
const { snapshot, status, lastUpdate, messageCount, error } = useLiveState(API_URL);
|
||||
const liveUt = snapshot?.ut ?? 0;
|
||||
|
||||
// Time controls
|
||||
const [displayUt, setDisplayUt] = useState<number>(liveUt);
|
||||
const [playing, setPlaying] = useState(true);
|
||||
const [speed, setSpeed] = useState(1);
|
||||
|
||||
// Selection
|
||||
const [selectedId, setSelectedId] = useState<string | null>(null);
|
||||
|
||||
// Focus toggles
|
||||
const [showPlanetOrbits, setShowPlanetOrbits] = useState(true);
|
||||
const [showMoonOrbits, setShowMoonOrbits] = useState(true);
|
||||
const [showVesselOrbits, setShowVesselOrbits] = useState(true);
|
||||
|
||||
// When a new snapshot arrives, jump displayUt to liveUt if we're
|
||||
// currently "in sync" (playing and at the live edge).
|
||||
useEffect(() => {
|
||||
if (playing && displayUt >= liveUt - 1) {
|
||||
setDisplayUt(liveUt);
|
||||
}
|
||||
// eslint-disable-next-line react-hooks/exhaustive-deps
|
||||
}, [liveUt]);
|
||||
|
||||
// Advance displayUt when playing
|
||||
useEffect(() => {
|
||||
if (!playing) return;
|
||||
const id = setInterval(() => setUt((u) => u + speed), 1000);
|
||||
const id = setInterval(() => {
|
||||
setDisplayUt((u) => u + speed);
|
||||
}, 1000);
|
||||
return () => clearInterval(id);
|
||||
}, [playing, speed]);
|
||||
|
||||
const displaySnapshot: UniverseSnapshot = snapshot ?? FALLBACK_SNAPSHOT;
|
||||
const vesselCount = displaySnapshot.vessels.length;
|
||||
const bodyCount = displaySnapshot.bodies.length;
|
||||
|
||||
return (
|
||||
<div style={{ width: '100vw', height: '100vh', position: 'relative', background: '#000' }}>
|
||||
<Scene bodies={bodies} ut={ut} />
|
||||
<Scene
|
||||
snapshot={displaySnapshot}
|
||||
ut={displayUt}
|
||||
followId={selectedId}
|
||||
showPlanetOrbits={showPlanetOrbits}
|
||||
showMoonOrbits={showMoonOrbits}
|
||||
showVesselOrbits={showVesselOrbits}
|
||||
/>
|
||||
|
||||
<div
|
||||
style={{
|
||||
position: 'absolute',
|
||||
top: 12,
|
||||
left: 12,
|
||||
padding: '0.5rem 0.75rem',
|
||||
background: 'rgba(0,0,0,0.6)',
|
||||
color: 'white',
|
||||
borderRadius: 6,
|
||||
fontFamily: 'monospace',
|
||||
fontSize: 13,
|
||||
<StatusPill
|
||||
status={status}
|
||||
lastUpdate={lastUpdate}
|
||||
messageCount={messageCount}
|
||||
vesselCount={vesselCount}
|
||||
bodyCount={bodyCount}
|
||||
/>
|
||||
|
||||
<TimeControls
|
||||
ut={displayUt}
|
||||
liveUt={liveUt}
|
||||
playing={playing}
|
||||
speed={speed}
|
||||
onPlayPause={() => setPlaying((p) => !p)}
|
||||
onSpeed={(s) => {
|
||||
setSpeed(s);
|
||||
if (s > 0) setPlaying(true);
|
||||
}}
|
||||
>
|
||||
<div style={{ display: 'flex', gap: '0.5rem', alignItems: 'center' }}>
|
||||
<strong>Kerbal RT</strong>
|
||||
<Pill tone={error ? 'danger' : 'success'}>
|
||||
{error ? 'API offline' : `${bodies.length} bodies`}
|
||||
</Pill>
|
||||
onReverse={() => setSpeed((s) => -s)}
|
||||
onReset={() => {
|
||||
setDisplayUt(liveUt);
|
||||
setPlaying(true);
|
||||
setSpeed(1);
|
||||
setSelectedId(null);
|
||||
}}
|
||||
onScrub={(u) => {
|
||||
setDisplayUt(u);
|
||||
setPlaying(false);
|
||||
}}
|
||||
/>
|
||||
|
||||
<VesselList
|
||||
vessels={displaySnapshot.vessels}
|
||||
selectedId={selectedId}
|
||||
onSelect={setSelectedId}
|
||||
/>
|
||||
|
||||
<FocusPanel
|
||||
showPlanetOrbits={showPlanetOrbits}
|
||||
showMoonOrbits={showMoonOrbits}
|
||||
showVesselOrbits={showVesselOrbits}
|
||||
onTogglePlanet={() => setShowPlanetOrbits((v) => !v)}
|
||||
onToggleMoon={() => setShowMoonOrbits((v) => !v)}
|
||||
onToggleVessel={() => setShowVesselOrbits((v) => !v)}
|
||||
/>
|
||||
|
||||
{error && (
|
||||
<div
|
||||
style={{
|
||||
position: 'absolute',
|
||||
bottom: 12,
|
||||
left: 12,
|
||||
padding: '0.4rem 0.6rem',
|
||||
background: 'rgba(200, 0, 0, 0.3)',
|
||||
color: '#fff',
|
||||
borderRadius: 4,
|
||||
fontFamily: 'monospace',
|
||||
fontSize: 11,
|
||||
}}
|
||||
>
|
||||
{error}
|
||||
</div>
|
||||
<div style={{ marginTop: 4 }}>UT {formatUtAsKspDate(ut)}</div>
|
||||
<div style={{ display: 'flex', gap: '0.25rem', marginTop: 8 }}>
|
||||
<button onClick={() => setPlaying((p) => !p)}>{playing ? '⏸' : '▶'}</button>
|
||||
<button onClick={() => setUt(0)}>Reset</button>
|
||||
{[1, 60, 3600, 86400].map((s) => (
|
||||
<button
|
||||
key={s}
|
||||
onClick={() => setSpeed(s)}
|
||||
style={{ fontWeight: speed === s ? 'bold' : 'normal' }}
|
||||
>
|
||||
×{s < 60 ? s : s < 3600 ? `${s / 60}m` : `${s / 3600}h`}
|
||||
</button>
|
||||
))}
|
||||
</div>
|
||||
</div>
|
||||
)}
|
||||
|
||||
<div
|
||||
style={{
|
||||
position: 'absolute',
|
||||
bottom: 12,
|
||||
right: 12,
|
||||
color: 'rgba(255,255,255,0.5)',
|
||||
fontSize: 11,
|
||||
color: 'rgba(255,255,255,0.4)',
|
||||
fontSize: 10,
|
||||
fontFamily: 'monospace',
|
||||
}}
|
||||
>
|
||||
Phase 0 skeleton · Three.js
|
||||
Phase 2 — live map · mock-telemetry driving the WS
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
|
||||
@@ -0,0 +1,123 @@
|
||||
/**
|
||||
* useLiveState — subscribe to the kerbal-rt API over WebSocket and
|
||||
* expose the latest UniverseSnapshot plus connection status.
|
||||
*
|
||||
* Auto-reconnects with exponential backoff on drop. Falls back to
|
||||
* polling /api/v1/state every 5s if WebSocket fails to connect after
|
||||
* 3 retries (e.g. a proxy doesn't support upgrade).
|
||||
*/
|
||||
import { useEffect, useRef, useState } from 'react';
|
||||
import type { LiveMessage, UniverseSnapshot } from '@kerbal-rt/shared-types';
|
||||
|
||||
export type ConnectionState = 'connecting' | 'open' | 'closed' | 'fallback';
|
||||
|
||||
export interface LiveState {
|
||||
snapshot: UniverseSnapshot | null;
|
||||
status: ConnectionState;
|
||||
lastUpdate: string | null;
|
||||
messageCount: number;
|
||||
error: string | null;
|
||||
}
|
||||
|
||||
const RECONNECT_DELAYS_MS = [1000, 2000, 5000, 10_000, 30_000];
|
||||
|
||||
export function useLiveState(apiUrl: string): LiveState {
|
||||
const [snapshot, setSnapshot] = useState<UniverseSnapshot | null>(null);
|
||||
const [status, setStatus] = useState<ConnectionState>('connecting');
|
||||
const [lastUpdate, setLastUpdate] = useState<string | null>(null);
|
||||
const [messageCount, setMessageCount] = useState(0);
|
||||
const [error, setError] = useState<string | null>(null);
|
||||
const reconnectAttempt = useRef(0);
|
||||
const stopped = useRef(false);
|
||||
|
||||
useEffect(() => {
|
||||
stopped.current = false;
|
||||
let pollTimer: number | null = null;
|
||||
let reconnectTimer: number | null = null;
|
||||
let ws: WebSocket | null = null;
|
||||
|
||||
const startPollingFallback = () => {
|
||||
if (pollTimer) return;
|
||||
setStatus('fallback');
|
||||
const tick = async () => {
|
||||
try {
|
||||
const res = await fetch(`${apiUrl}/api/v1/state`);
|
||||
if (res.ok) {
|
||||
const body = await res.json();
|
||||
if (!body.error && body.data) {
|
||||
setSnapshot(body.data as UniverseSnapshot);
|
||||
setLastUpdate(new Date().toISOString());
|
||||
setMessageCount((n) => n + 1);
|
||||
}
|
||||
}
|
||||
} catch (e) {
|
||||
setError(String((e as Error).message ?? e));
|
||||
}
|
||||
};
|
||||
void tick();
|
||||
pollTimer = window.setInterval(tick, 5000);
|
||||
};
|
||||
|
||||
const scheduleReconnect = () => {
|
||||
if (stopped.current) return;
|
||||
if (reconnectAttempt.current >= RECONNECT_DELAYS_MS.length) {
|
||||
// Gave up on WS, fall back to polling.
|
||||
startPollingFallback();
|
||||
return;
|
||||
}
|
||||
const delay = RECONNECT_DELAYS_MS[reconnectAttempt.current] ?? 30_000;
|
||||
reconnectAttempt.current += 1;
|
||||
setStatus('closed');
|
||||
reconnectTimer = window.setTimeout(connect, delay);
|
||||
};
|
||||
|
||||
const connect = () => {
|
||||
if (stopped.current) return;
|
||||
setStatus('connecting');
|
||||
setError(null);
|
||||
const wsUrl = apiUrl.replace(/^http/, 'ws') + '/api/v1/live';
|
||||
try {
|
||||
ws = new WebSocket(wsUrl);
|
||||
} catch (e) {
|
||||
setError(String((e as Error).message ?? e));
|
||||
scheduleReconnect();
|
||||
return;
|
||||
}
|
||||
ws.onopen = () => {
|
||||
setStatus('open');
|
||||
reconnectAttempt.current = 0; // success — reset backoff
|
||||
};
|
||||
ws.onmessage = (event) => {
|
||||
setMessageCount((n) => n + 1);
|
||||
setLastUpdate(new Date().toISOString());
|
||||
try {
|
||||
const msg = JSON.parse(event.data) as LiveMessage;
|
||||
if (msg.type === 'snapshot') {
|
||||
setSnapshot(msg.snapshot);
|
||||
}
|
||||
} catch (e) {
|
||||
setError(`bad message: ${String((e as Error).message ?? e)}`);
|
||||
}
|
||||
};
|
||||
ws.onerror = () => {
|
||||
// close will fire too
|
||||
};
|
||||
ws.onclose = () => {
|
||||
scheduleReconnect();
|
||||
};
|
||||
};
|
||||
|
||||
connect();
|
||||
return () => {
|
||||
stopped.current = true;
|
||||
if (reconnectTimer) window.clearTimeout(reconnectTimer);
|
||||
if (pollTimer) window.clearInterval(pollTimer);
|
||||
if (ws) {
|
||||
ws.onclose = null;
|
||||
ws.close();
|
||||
}
|
||||
};
|
||||
}, [apiUrl]);
|
||||
|
||||
return { snapshot, status, lastUpdate, messageCount, error };
|
||||
}
|
||||
@@ -0,0 +1,74 @@
|
||||
/**
|
||||
* FocusPanel — toggles for which orbit-line categories are visible.
|
||||
*/
|
||||
export interface FocusPanelProps {
|
||||
showPlanetOrbits: boolean;
|
||||
showMoonOrbits: boolean;
|
||||
showVesselOrbits: boolean;
|
||||
onTogglePlanet: () => void;
|
||||
onToggleMoon: () => void;
|
||||
onToggleVessel: () => void;
|
||||
}
|
||||
|
||||
const PANEL_STYLE: React.CSSProperties = {
|
||||
position: 'absolute',
|
||||
top: 12,
|
||||
right: 12,
|
||||
padding: '0.5rem 0.75rem',
|
||||
background: 'rgba(0,0,0,0.7)',
|
||||
color: 'white',
|
||||
borderRadius: 6,
|
||||
fontSize: 11,
|
||||
fontFamily: 'monospace',
|
||||
backdropFilter: 'blur(4px)',
|
||||
border: '1px solid rgba(255,255,255,0.1)',
|
||||
display: 'flex',
|
||||
flexDirection: 'column',
|
||||
gap: 4,
|
||||
};
|
||||
|
||||
const ROW_STYLE: React.CSSProperties = {
|
||||
display: 'flex',
|
||||
alignItems: 'center',
|
||||
gap: 6,
|
||||
cursor: 'pointer',
|
||||
userSelect: 'none',
|
||||
};
|
||||
|
||||
export function FocusPanel(props: FocusPanelProps) {
|
||||
const {
|
||||
showPlanetOrbits,
|
||||
showMoonOrbits,
|
||||
showVesselOrbits,
|
||||
onTogglePlanet,
|
||||
onToggleMoon,
|
||||
onToggleVessel,
|
||||
} = props;
|
||||
return (
|
||||
<div style={PANEL_STYLE}>
|
||||
<div
|
||||
style={{
|
||||
fontSize: 10,
|
||||
opacity: 0.6,
|
||||
textTransform: 'uppercase',
|
||||
letterSpacing: '0.05em',
|
||||
marginBottom: 4,
|
||||
}}
|
||||
>
|
||||
Orbits
|
||||
</div>
|
||||
<label style={ROW_STYLE}>
|
||||
<input type="checkbox" checked={showPlanetOrbits} onChange={onTogglePlanet} />
|
||||
Planets
|
||||
</label>
|
||||
<label style={ROW_STYLE}>
|
||||
<input type="checkbox" checked={showMoonOrbits} onChange={onToggleMoon} />
|
||||
Moons
|
||||
</label>
|
||||
<label style={ROW_STYLE}>
|
||||
<input type="checkbox" checked={showVesselOrbits} onChange={onToggleVessel} />
|
||||
Vessels
|
||||
</label>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
@@ -0,0 +1,73 @@
|
||||
/**
|
||||
* StatusPill — connection + stale-data indicator.
|
||||
*
|
||||
* Shows:
|
||||
* - WS connection state (open / connecting / closed / fallback)
|
||||
* - "Data may be stale" warning if lastUpdate > STALE_THRESHOLD_S
|
||||
* - Number of messages received
|
||||
*/
|
||||
import { Pill } from '@kerbal-rt/ui';
|
||||
import type { ConnectionState } from '../hooks/useLiveState.js';
|
||||
|
||||
export interface StatusPillProps {
|
||||
status: ConnectionState;
|
||||
lastUpdate: string | null;
|
||||
messageCount: number;
|
||||
vesselCount: number;
|
||||
bodyCount: number;
|
||||
}
|
||||
|
||||
const STALE_THRESHOLD_S = 60;
|
||||
|
||||
export function StatusPill({
|
||||
status,
|
||||
lastUpdate,
|
||||
messageCount,
|
||||
vesselCount,
|
||||
bodyCount,
|
||||
}: StatusPillProps) {
|
||||
const isStale = lastUpdate
|
||||
? (Date.now() - new Date(lastUpdate).getTime()) / 1000 > STALE_THRESHOLD_S
|
||||
: true;
|
||||
const tone =
|
||||
status === 'open' && !isStale
|
||||
? 'success'
|
||||
: status === 'connecting' || status === 'fallback'
|
||||
? 'warn'
|
||||
: 'danger';
|
||||
const label =
|
||||
status === 'open'
|
||||
? isStale
|
||||
? 'STALE'
|
||||
: 'LIVE'
|
||||
: status === 'connecting'
|
||||
? 'CONNECTING'
|
||||
: status === 'fallback'
|
||||
? 'POLLING'
|
||||
: 'OFFLINE';
|
||||
|
||||
return (
|
||||
<div
|
||||
style={{
|
||||
position: 'absolute',
|
||||
top: 12,
|
||||
left: '50%',
|
||||
transform: 'translateX(-50%)',
|
||||
display: 'flex',
|
||||
gap: 6,
|
||||
padding: '0.4rem 0.6rem',
|
||||
background: 'rgba(0,0,0,0.6)',
|
||||
borderRadius: 6,
|
||||
backdropFilter: 'blur(4px)',
|
||||
border: '1px solid rgba(255,255,255,0.1)',
|
||||
fontFamily: 'monospace',
|
||||
fontSize: 11,
|
||||
}}
|
||||
>
|
||||
<Pill tone={tone}>{label}</Pill>
|
||||
<Pill tone="neutral">{bodyCount} bodies</Pill>
|
||||
<Pill tone="neutral">{vesselCount} vessels</Pill>
|
||||
<Pill tone="neutral">{messageCount} msgs</Pill>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
@@ -0,0 +1,144 @@
|
||||
/**
|
||||
* TimeControls — play/pause, speed multiplier, reverse, reset,
|
||||
* and a slider to scrub the simulation UT.
|
||||
*
|
||||
* Time source of truth: `ut`. The Scene re-propagates every time
|
||||
* `ut` changes. Mock-telemetry advances UT at 1 KSP-second per
|
||||
* wall-clock second; pressing ▶ at speed ×1 gives you live
|
||||
* playback. Higher speeds fast-forward.
|
||||
*/
|
||||
import type { ChangeEvent } from 'react';
|
||||
|
||||
export interface TimeControlsProps {
|
||||
ut: number;
|
||||
/** UT of the most recent server snapshot (the "live edge"). */
|
||||
liveUt: number;
|
||||
playing: boolean;
|
||||
speed: number;
|
||||
onPlayPause: () => void;
|
||||
onSpeed: (s: number) => void;
|
||||
onReverse: () => void;
|
||||
onReset: () => void;
|
||||
onScrub: (ut: number) => void;
|
||||
}
|
||||
|
||||
const SPEEDS: { value: number; label: string }[] = [
|
||||
{ value: 1, label: '×1' },
|
||||
{ value: 10, label: '×10' },
|
||||
{ value: 100, label: '×100' },
|
||||
{ value: 1000, label: '×1k' },
|
||||
{ value: 10000, label: '×10k' },
|
||||
{ value: 100000, label: '×100k' },
|
||||
];
|
||||
|
||||
const PANEL_STYLE: React.CSSProperties = {
|
||||
position: 'absolute',
|
||||
top: 12,
|
||||
left: 12,
|
||||
padding: '0.5rem 0.75rem',
|
||||
background: 'rgba(0,0,0,0.7)',
|
||||
color: 'white',
|
||||
borderRadius: 6,
|
||||
fontFamily: 'monospace',
|
||||
fontSize: 12,
|
||||
minWidth: 380,
|
||||
backdropFilter: 'blur(4px)',
|
||||
border: '1px solid rgba(255,255,255,0.1)',
|
||||
};
|
||||
|
||||
const BUTTON_STYLE: React.CSSProperties = {
|
||||
background: 'rgba(255,255,255,0.08)',
|
||||
border: '1px solid rgba(255,255,255,0.15)',
|
||||
color: '#e6e6ee',
|
||||
padding: '0.2rem 0.4rem',
|
||||
borderRadius: 3,
|
||||
cursor: 'pointer',
|
||||
fontSize: 11,
|
||||
};
|
||||
|
||||
const ACTIVE_BUTTON: React.CSSProperties = {
|
||||
...BUTTON_STYLE,
|
||||
fontWeight: 700,
|
||||
background: 'rgba(255,255,255,0.2)',
|
||||
};
|
||||
|
||||
export function TimeControls(props: TimeControlsProps) {
|
||||
const { ut, liveUt, playing, speed, onPlayPause, onSpeed, onReverse, onReset, onScrub } = props;
|
||||
const isLive = ut === liveUt;
|
||||
const behind = liveUt - ut;
|
||||
const behindLabel =
|
||||
behind === 0
|
||||
? 'live'
|
||||
: behind > 0
|
||||
? `${formatKspDuration(behind)} behind`
|
||||
: `${formatKspDuration(-behind)} ahead`;
|
||||
|
||||
return (
|
||||
<div style={PANEL_STYLE}>
|
||||
<div style={{ display: 'flex', alignItems: 'center', gap: 6, marginBottom: 6 }}>
|
||||
<button onClick={onPlayPause} style={BUTTON_STYLE} title={playing ? 'Pause' : 'Play'}>
|
||||
{playing ? '⏸' : '▶'}
|
||||
</button>
|
||||
<button onClick={onReverse} style={BUTTON_STYLE} title="Reverse time">
|
||||
⏪
|
||||
</button>
|
||||
<button onClick={onReset} style={BUTTON_STYLE} title="Snap to live">
|
||||
⤴
|
||||
</button>
|
||||
<div style={{ flex: 1 }} />
|
||||
{SPEEDS.map((s) => (
|
||||
<button
|
||||
key={s.value}
|
||||
onClick={() => onSpeed(s.value)}
|
||||
style={speed === s.value ? ACTIVE_BUTTON : BUTTON_STYLE}
|
||||
>
|
||||
{s.label}
|
||||
</button>
|
||||
))}
|
||||
</div>
|
||||
<div style={{ display: 'flex', alignItems: 'center', gap: 6, fontSize: 11 }}>
|
||||
<span style={{ opacity: 0.6 }}>UT</span>
|
||||
<span style={{ minWidth: 120 }}>{formatKspTime(ut)}</span>
|
||||
<input
|
||||
type="range"
|
||||
min={Math.max(0, liveUt - 5 * 365 * 24 * 3600)}
|
||||
max={liveUt + 365 * 24 * 3600}
|
||||
step={60}
|
||||
value={ut}
|
||||
onChange={(e: ChangeEvent<HTMLInputElement>) => onScrub(Number(e.target.value))}
|
||||
style={{ flex: 1 }}
|
||||
/>
|
||||
<span
|
||||
style={{
|
||||
opacity: 0.7,
|
||||
color: isLive ? '#7dff7d' : '#ffcc44',
|
||||
minWidth: 90,
|
||||
textAlign: 'right',
|
||||
}}
|
||||
>
|
||||
{behindLabel}
|
||||
</span>
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
}
|
||||
|
||||
const KSP_DAY_SECONDS = 6 * 3600;
|
||||
const KSP_YEAR_DAYS = 426;
|
||||
|
||||
function formatKspTime(ut: number): string {
|
||||
const totalDays = ut / KSP_DAY_SECONDS;
|
||||
const year = Math.floor(totalDays / KSP_YEAR_DAYS) + 1;
|
||||
const day = (Math.floor(totalDays) % KSP_YEAR_DAYS) + 1;
|
||||
const secondsInDay = ut % KSP_DAY_SECONDS;
|
||||
const h = Math.floor(secondsInDay / 3600);
|
||||
const m = Math.floor((secondsInDay % 3600) / 60);
|
||||
return `Y${year} D${String(day).padStart(3, '0')} ${String(h).padStart(2, '0')}:${String(m).padStart(2, '0')}`;
|
||||
}
|
||||
|
||||
function formatKspDuration(seconds: number): string {
|
||||
if (seconds < 3600) return `${Math.floor(seconds / 60)}m`;
|
||||
if (seconds < 86400) return `${(seconds / 3600).toFixed(1)}h`;
|
||||
if (seconds < KSP_YEAR_DAYS * KSP_DAY_SECONDS) return `${(seconds / 86400).toFixed(1)}d`;
|
||||
return `${(seconds / (KSP_YEAR_DAYS * KSP_DAY_SECONDS)).toFixed(1)}y`;
|
||||
}
|
||||
@@ -0,0 +1,109 @@
|
||||
/**
|
||||
* VesselList — sidebar of currently-known vessels.
|
||||
*
|
||||
* Click a vessel to track it (the camera follows + the orbit is
|
||||
* highlighted). Click again to untrack.
|
||||
*/
|
||||
import type { Vessel } from '@kerbal-rt/shared-types';
|
||||
import { vesselColor } from '../scene/color.js';
|
||||
|
||||
export interface VesselListProps {
|
||||
vessels: Vessel[];
|
||||
selectedId: string | null;
|
||||
onSelect: (id: string | null) => void;
|
||||
}
|
||||
|
||||
const PANEL_STYLE: React.CSSProperties = {
|
||||
position: 'absolute',
|
||||
top: 110,
|
||||
left: 12,
|
||||
width: 280,
|
||||
maxHeight: 'calc(100vh - 200px)',
|
||||
overflow: 'auto',
|
||||
padding: '0.5rem',
|
||||
background: 'rgba(0,0,0,0.7)',
|
||||
color: 'white',
|
||||
borderRadius: 6,
|
||||
fontSize: 12,
|
||||
fontFamily: 'monospace',
|
||||
backdropFilter: 'blur(4px)',
|
||||
border: '1px solid rgba(255,255,255,0.1)',
|
||||
};
|
||||
|
||||
const ROW_STYLE: React.CSSProperties = {
|
||||
padding: '0.4rem 0.5rem',
|
||||
marginBottom: 2,
|
||||
borderRadius: 3,
|
||||
cursor: 'pointer',
|
||||
background: 'rgba(255,255,255,0.04)',
|
||||
border: '1px solid transparent',
|
||||
display: 'flex',
|
||||
alignItems: 'center',
|
||||
gap: 6,
|
||||
};
|
||||
|
||||
const ROW_ACTIVE: React.CSSProperties = {
|
||||
...ROW_STYLE,
|
||||
background: 'rgba(255,255,255,0.12)',
|
||||
border: '1px solid rgba(255,255,255,0.3)',
|
||||
};
|
||||
|
||||
const DOT_STYLE: (color: number) => React.CSSProperties = (color) => ({
|
||||
width: 8,
|
||||
height: 8,
|
||||
borderRadius: '50%',
|
||||
background: `#${color.toString(16).padStart(6, '0')}`,
|
||||
flexShrink: 0,
|
||||
});
|
||||
|
||||
export function VesselList({ vessels, selectedId, onSelect }: VesselListProps) {
|
||||
const sorted = [...vessels].sort((a, b) => a.name.localeCompare(b.name));
|
||||
return (
|
||||
<div style={PANEL_STYLE}>
|
||||
<div
|
||||
style={{
|
||||
fontSize: 10,
|
||||
opacity: 0.6,
|
||||
textTransform: 'uppercase',
|
||||
letterSpacing: '0.05em',
|
||||
marginBottom: 4,
|
||||
}}
|
||||
>
|
||||
Vessels ({vessels.length})
|
||||
</div>
|
||||
{sorted.length === 0 ? (
|
||||
<div style={{ opacity: 0.4, padding: 4 }}>No vessels yet.</div>
|
||||
) : (
|
||||
sorted.map((v) => {
|
||||
const color = vesselColor(v.owner);
|
||||
const isActive = selectedId === v.id;
|
||||
return (
|
||||
<div
|
||||
key={v.id}
|
||||
style={isActive ? ROW_ACTIVE : ROW_STYLE}
|
||||
onClick={() => onSelect(isActive ? null : v.id)}
|
||||
title={v.id}
|
||||
>
|
||||
<span style={DOT_STYLE(color)} />
|
||||
<div style={{ flex: 1, minWidth: 0 }}>
|
||||
<div
|
||||
style={{
|
||||
whiteSpace: 'nowrap',
|
||||
overflow: 'hidden',
|
||||
textOverflow: 'ellipsis',
|
||||
fontWeight: isActive ? 700 : 400,
|
||||
}}
|
||||
>
|
||||
{v.name}
|
||||
</div>
|
||||
<div style={{ opacity: 0.6, fontSize: 10 }}>
|
||||
{v.owner ?? '—'} · {v.situation.toLowerCase()} · {v.referenceBodyId}
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
);
|
||||
})
|
||||
)}
|
||||
</div>
|
||||
);
|
||||
}
|
||||
@@ -0,0 +1,295 @@
|
||||
/**
|
||||
* Scene — the 3D Three.js rendering of the universe.
|
||||
*
|
||||
* Re-renders when the bodies, vessels, or focus settings change.
|
||||
* The animation loop runs the orbit propagation and positions the
|
||||
* meshes for the current `ut`.
|
||||
*/
|
||||
import { useEffect, useRef } from 'react';
|
||||
import * as THREE from 'three';
|
||||
import { sampleOrbit } from '@kerbal-rt/orbital-math';
|
||||
import type { UniverseSnapshot } from '@kerbal-rt/shared-types';
|
||||
import { bodyColor, vesselColor } from './color.js';
|
||||
import { bodyPositionAt, vesselPositionAt } from './layout.js';
|
||||
|
||||
export interface SceneProps {
|
||||
snapshot: UniverseSnapshot;
|
||||
ut: number;
|
||||
/** Which body or vessel the camera should follow. null = free. */
|
||||
followId: string | null;
|
||||
/** Toggle visibility of orbit lines by category. */
|
||||
showPlanetOrbits: boolean;
|
||||
showMoonOrbits: boolean;
|
||||
showVesselOrbits: boolean;
|
||||
}
|
||||
|
||||
interface SceneRefs {
|
||||
scene: THREE.Scene;
|
||||
camera: THREE.PerspectiveCamera;
|
||||
renderer: THREE.WebGLRenderer;
|
||||
bodyMeshes: Map<string, THREE.Mesh>;
|
||||
vesselMeshes: Map<string, THREE.Mesh>;
|
||||
orbitLines: Map<string, THREE.Line>;
|
||||
mount: HTMLDivElement;
|
||||
raf: number;
|
||||
}
|
||||
|
||||
const ORBIT_OPACITY: Record<string, number> = {
|
||||
planet: 0.5,
|
||||
moon: 0.4,
|
||||
vessel: 0.6,
|
||||
};
|
||||
|
||||
export function Scene(props: SceneProps) {
|
||||
const { snapshot, ut, followId, showPlanetOrbits, showMoonOrbits, showVesselOrbits } = props;
|
||||
const mountRef = useRef<HTMLDivElement>(null);
|
||||
const refsRef = useRef<SceneRefs | null>(null);
|
||||
|
||||
// One-time scene setup
|
||||
useEffect(() => {
|
||||
const mount = mountRef.current;
|
||||
if (!mount) return;
|
||||
const refs = createScene(mount);
|
||||
refsRef.current = refs;
|
||||
|
||||
const onResize = () => {
|
||||
const r = refsRef.current;
|
||||
if (!r) return;
|
||||
const w = mount.clientWidth;
|
||||
const h = mount.clientHeight;
|
||||
r.camera.aspect = w / h;
|
||||
r.camera.updateProjectionMatrix();
|
||||
r.renderer.setSize(w, h);
|
||||
};
|
||||
window.addEventListener('resize', onResize);
|
||||
|
||||
return () => {
|
||||
window.removeEventListener('resize', onResize);
|
||||
cancelAnimationFrame(refs.raf);
|
||||
refs.renderer.dispose();
|
||||
if (mount.contains(refs.renderer.domElement)) {
|
||||
mount.removeChild(refs.renderer.domElement);
|
||||
}
|
||||
};
|
||||
}, []);
|
||||
|
||||
// Rebuild the body / vessel meshes whenever the snapshot's set of
|
||||
// bodies or vessels changes (not on every snapshot — they're stable).
|
||||
useEffect(() => {
|
||||
const refs = refsRef.current;
|
||||
if (!refs) return;
|
||||
rebuildMeshes(refs, snapshot);
|
||||
}, [snapshot.bodies, snapshot.vessels, snapshot]);
|
||||
|
||||
// Toggle orbit line visibility
|
||||
useEffect(() => {
|
||||
const refs = refsRef.current;
|
||||
if (!refs) return;
|
||||
for (const [id, line] of refs.orbitLines.entries()) {
|
||||
const isPlanet = snapshot.bodies.find((b) => b.id === id && b.kind === 'planet');
|
||||
const isMoon = snapshot.bodies.find((b) => b.id === id && b.kind === 'moon');
|
||||
if (isPlanet) line.visible = showPlanetOrbits;
|
||||
else if (isMoon) line.visible = showMoonOrbits;
|
||||
else line.visible = showVesselOrbits; // vessel
|
||||
}
|
||||
}, [showPlanetOrbits, showMoonOrbits, showVesselOrbits, snapshot.bodies]);
|
||||
|
||||
// Per-frame: propagate, position meshes, follow camera
|
||||
useEffect(() => {
|
||||
const refs = refsRef.current;
|
||||
if (!refs) return;
|
||||
|
||||
let lastUt = Number.NEGATIVE_INFINITY;
|
||||
const render = () => {
|
||||
// Re-propagate positions whenever ut changes
|
||||
if (ut !== lastUt) {
|
||||
lastUt = ut;
|
||||
positionMeshes(refs, snapshot, ut);
|
||||
}
|
||||
// Camera follow
|
||||
if (followId) {
|
||||
const followPos = getFollowPosition(snapshot, followId, ut);
|
||||
if (followPos) {
|
||||
refs.camera.position.lerp(
|
||||
new THREE.Vector3(followPos.x, followPos.y, followPos.z).multiplyScalar(1.05),
|
||||
0.05,
|
||||
);
|
||||
// Also add a small offset for context
|
||||
const target = new THREE.Vector3(followPos.x, followPos.y, followPos.z);
|
||||
refs.camera.lookAt(target);
|
||||
}
|
||||
}
|
||||
refs.renderer.render(refs.scene, refs.camera);
|
||||
refs.raf = requestAnimationFrame(render);
|
||||
};
|
||||
refs.raf = requestAnimationFrame(render);
|
||||
return () => cancelAnimationFrame(refs.raf);
|
||||
}, [snapshot, ut, followId]);
|
||||
|
||||
return <div ref={mountRef} style={{ width: '100%', height: '100%' }} />;
|
||||
}
|
||||
|
||||
// ─── Three.js setup helpers ────────────────────────────────────────────────
|
||||
|
||||
function createScene(mount: HTMLDivElement): SceneRefs {
|
||||
const width = mount.clientWidth;
|
||||
const height = mount.clientHeight;
|
||||
|
||||
const scene = new THREE.Scene();
|
||||
scene.background = new THREE.Color(0x000005);
|
||||
|
||||
const camera = new THREE.PerspectiveCamera(60, width / height, 1e6, 1e12);
|
||||
camera.position.set(0, 5e9, 1.5e10);
|
||||
camera.lookAt(0, 0, 0);
|
||||
|
||||
const renderer = new THREE.WebGLRenderer({ antialias: true });
|
||||
renderer.setSize(width, height);
|
||||
renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
|
||||
mount.appendChild(renderer.domElement);
|
||||
|
||||
scene.add(new THREE.AmbientLight(0x404040, 0.4));
|
||||
const sunLight = new THREE.PointLight(0xffffff, 2, 0, 0);
|
||||
scene.add(sunLight);
|
||||
|
||||
const onResize = () => {
|
||||
const w = mount.clientWidth;
|
||||
const h = mount.clientHeight;
|
||||
camera.aspect = w / h;
|
||||
camera.updateProjectionMatrix();
|
||||
renderer.setSize(w, h);
|
||||
};
|
||||
window.addEventListener('resize', onResize);
|
||||
|
||||
return {
|
||||
scene,
|
||||
camera,
|
||||
renderer,
|
||||
bodyMeshes: new Map(),
|
||||
vesselMeshes: new Map(),
|
||||
orbitLines: new Map(),
|
||||
mount,
|
||||
raf: 0,
|
||||
};
|
||||
}
|
||||
|
||||
function rebuildMeshes(refs: SceneRefs, snap: UniverseSnapshot): void {
|
||||
// Remove existing meshes / lines
|
||||
for (const mesh of refs.bodyMeshes.values()) {
|
||||
refs.scene.remove(mesh);
|
||||
mesh.geometry.dispose();
|
||||
(mesh.material as THREE.Material).dispose();
|
||||
}
|
||||
for (const mesh of refs.vesselMeshes.values()) {
|
||||
refs.scene.remove(mesh);
|
||||
mesh.geometry.dispose();
|
||||
(mesh.material as THREE.Material).dispose();
|
||||
}
|
||||
for (const line of refs.orbitLines.values()) {
|
||||
refs.scene.remove(line);
|
||||
line.geometry.dispose();
|
||||
(line.material as THREE.Material).dispose();
|
||||
}
|
||||
refs.bodyMeshes.clear();
|
||||
refs.vesselMeshes.clear();
|
||||
refs.orbitLines.clear();
|
||||
|
||||
for (const body of snap.bodies) {
|
||||
if (body.kind === 'star') {
|
||||
const geo = new THREE.SphereGeometry(Math.max(body.radius, 1e8), 32, 16);
|
||||
const mat = new THREE.MeshBasicMaterial({ color: bodyColor(body.id) });
|
||||
const mesh = new THREE.Mesh(geo, mat);
|
||||
refs.scene.add(mesh);
|
||||
refs.bodyMeshes.set(body.id, mesh);
|
||||
continue;
|
||||
}
|
||||
if (body.parentId === null) continue;
|
||||
|
||||
// Body sphere
|
||||
const displayRadius = Math.max(body.radius, 1e6);
|
||||
const geo = new THREE.SphereGeometry(displayRadius, 32, 16);
|
||||
const mat = new THREE.MeshPhongMaterial({
|
||||
color: bodyColor(body.id),
|
||||
emissive: 0x111111,
|
||||
});
|
||||
const mesh = new THREE.Mesh(geo, mat);
|
||||
refs.scene.add(mesh);
|
||||
refs.bodyMeshes.set(body.id, mesh);
|
||||
|
||||
// Orbit line
|
||||
const points = sampleOrbit(body.orbit, body.gravitationalParameter, 256);
|
||||
const positions = new Float32Array(points.length * 3);
|
||||
points.forEach((p, i) => {
|
||||
positions[i * 3] = p.x;
|
||||
positions[i * 3 + 1] = p.y;
|
||||
positions[i * 3 + 2] = p.z;
|
||||
});
|
||||
const lineGeo = new THREE.BufferGeometry();
|
||||
lineGeo.setAttribute('position', new THREE.BufferAttribute(positions, 3));
|
||||
const lineMat = new THREE.LineBasicMaterial({
|
||||
color: bodyColor(body.id),
|
||||
opacity: ORBIT_OPACITY[body.kind] ?? 0.5,
|
||||
transparent: true,
|
||||
});
|
||||
const line = new THREE.LineLoop(lineGeo, lineMat);
|
||||
refs.scene.add(line);
|
||||
refs.orbitLines.set(body.id, line);
|
||||
}
|
||||
|
||||
for (const vessel of snap.vessels) {
|
||||
const geo = new THREE.SphereGeometry(2e5, 12, 8);
|
||||
const mat = new THREE.MeshBasicMaterial({ color: vesselColor(vessel.owner) });
|
||||
const mesh = new THREE.Mesh(geo, mat);
|
||||
refs.scene.add(mesh);
|
||||
refs.vesselMeshes.set(vessel.id, mesh);
|
||||
|
||||
// Vessel orbit (relative to its reference body)
|
||||
if (vessel.referenceBodyId) {
|
||||
const ref = snap.bodies.find((b) => b.id === vessel.referenceBodyId);
|
||||
if (ref) {
|
||||
const points = sampleOrbit(vessel.orbit, ref.gravitationalParameter, 128);
|
||||
const positions = new Float32Array(points.length * 3);
|
||||
points.forEach((p, i) => {
|
||||
positions[i * 3] = p.x;
|
||||
positions[i * 3 + 1] = p.y;
|
||||
positions[i * 3 + 2] = p.z;
|
||||
});
|
||||
const lineGeo = new THREE.BufferGeometry();
|
||||
lineGeo.setAttribute('position', new THREE.BufferAttribute(positions, 3));
|
||||
const lineMat = new THREE.LineBasicMaterial({
|
||||
color: vesselColor(vessel.owner),
|
||||
opacity: 0.5,
|
||||
transparent: true,
|
||||
});
|
||||
const line = new THREE.LineLoop(lineGeo, lineMat);
|
||||
refs.scene.add(line);
|
||||
refs.orbitLines.set(vessel.id, line);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function positionMeshes(refs: SceneRefs, snap: UniverseSnapshot, ut: number): void {
|
||||
for (const body of snap.bodies) {
|
||||
if (body.kind === 'star' || body.parentId === null) continue;
|
||||
const pos = bodyPositionAt(snap.bodies, body.id, ut);
|
||||
const mesh = refs.bodyMeshes.get(body.id);
|
||||
if (mesh) mesh.position.set(pos.x, pos.y, pos.z);
|
||||
}
|
||||
for (const vessel of snap.vessels) {
|
||||
const pos = vesselPositionAt(snap.bodies, vessel, ut);
|
||||
const mesh = refs.vesselMeshes.get(vessel.id);
|
||||
if (mesh) mesh.position.set(pos.x, pos.y, pos.z);
|
||||
}
|
||||
}
|
||||
|
||||
function getFollowPosition(
|
||||
snap: UniverseSnapshot,
|
||||
id: string,
|
||||
ut: number,
|
||||
): { x: number; y: number; z: number } | null {
|
||||
const vessel = snap.vessels.find((v) => v.id === id);
|
||||
if (vessel) return vesselPositionAt(snap.bodies, vessel, ut);
|
||||
const body = snap.bodies.find((b) => b.id === id);
|
||||
if (body) return bodyPositionAt(snap.bodies, id, ut);
|
||||
return null;
|
||||
}
|
||||
@@ -0,0 +1,40 @@
|
||||
/**
|
||||
* Color-coding for celestial bodies. Identical to the catalog in
|
||||
* apps/tools/mock-telemetry/src/catalog.ts so the mock and the
|
||||
* renderer agree.
|
||||
*
|
||||
* Returns a Three.js-friendly 0xRRGGBB number.
|
||||
*/
|
||||
export function bodyColor(id: string): number {
|
||||
const map: Record<string, number> = {
|
||||
kerbol: 0xffcc33,
|
||||
kerbin: 0x3a7d8c,
|
||||
mun: 0xaaaaaa,
|
||||
minmus: 0x997a66,
|
||||
duna: 0xc46030,
|
||||
ike: 0x776655,
|
||||
eve: 0x6b4ea0,
|
||||
gilly: 0x665544,
|
||||
jool: 0xa55a2a,
|
||||
laythe: 0x4a6da0,
|
||||
vall: 0x665544,
|
||||
tylo: 0x997a66,
|
||||
bop: 0x444444,
|
||||
pol: 0x333333,
|
||||
moho: 0x664433,
|
||||
dres: 0x665544,
|
||||
eeloo: 0xeeeeff,
|
||||
};
|
||||
return map[id] ?? 0xffffff;
|
||||
}
|
||||
|
||||
/**
|
||||
* Color-coding for vessels by owner agency.
|
||||
*/
|
||||
export function vesselColor(owner: string | null): number {
|
||||
const map: Record<string, number> = {
|
||||
KASA: 0x44aaff, // blue
|
||||
SPES: 0xff6644, // orange
|
||||
};
|
||||
return map[owner ?? ''] ?? 0xcccccc;
|
||||
}
|
||||
@@ -0,0 +1,68 @@
|
||||
/**
|
||||
* Layout helpers for the 3D scene.
|
||||
*
|
||||
* - bodies are positioned in heliocentric inertial frame, in meters
|
||||
* - the KSP system is huge (Eeloo is ~9e10 m from Kerbol) so we
|
||||
* render with a logarithmic distance scale for the camera radius
|
||||
* to keep the inner planets visible alongside the outer ones
|
||||
*/
|
||||
import type { CelestialBody, Vessel } from '@kerbal-rt/shared-types';
|
||||
import { positionAt } from '@kerbal-rt/orbital-math';
|
||||
|
||||
/** Find a body's gravitational parameter (μ) given its id.
|
||||
* Misleadingly named "findParentMu" historically; the function
|
||||
* returns the body's own μ, used for propagating vessels around it. */
|
||||
export function findBodyMu(bodies: CelestialBody[], id: string | null): number {
|
||||
if (!id) return 0;
|
||||
const body = bodies.find((b) => b.id === id);
|
||||
return body?.gravitationalParameter ?? 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Position of a body in the heliocentric inertial frame, propagated
|
||||
* to the given UT by walking up the parent chain.
|
||||
*/
|
||||
export function bodyPositionAt(
|
||||
bodies: CelestialBody[],
|
||||
bodyId: string,
|
||||
ut: number,
|
||||
): { x: number; y: number; z: number } {
|
||||
const body = bodies.find((b) => b.id === bodyId);
|
||||
if (!body) return { x: 0, y: 0, z: 0 };
|
||||
if (!body.parentId) return { x: 0, y: 0, z: 0 }; // root (the star)
|
||||
const parent = bodies.find((b) => b.id === body.parentId);
|
||||
if (!parent) return { x: 0, y: 0, z: 0 };
|
||||
return positionAt(body.orbit, parent.gravitationalParameter, ut);
|
||||
}
|
||||
|
||||
/** Position of a vessel, propagated to UT, in the heliocentric frame. */
|
||||
export function vesselPositionAt(
|
||||
bodies: CelestialBody[],
|
||||
vessel: Vessel,
|
||||
ut: number,
|
||||
): { x: number; y: number; z: number } {
|
||||
const refMu = findBodyMu(bodies, vessel.referenceBodyId);
|
||||
const refPos = bodyPositionAt(bodies, vessel.referenceBodyId, ut);
|
||||
const local = positionAt(vessel.orbit, refMu, ut);
|
||||
return {
|
||||
x: refPos.x + local.x,
|
||||
y: refPos.y + local.y,
|
||||
z: refPos.z + local.z,
|
||||
};
|
||||
}
|
||||
|
||||
/**
|
||||
* Log-scaled camera distance. Maps a desired real distance to a
|
||||
* Three.js camera position that keeps both inner and outer planets
|
||||
* visible. d_real = exp(t) * 1e8 m → e.g. for t=4, distance=5.5e9 m.
|
||||
*/
|
||||
export function logScale(t: number): number {
|
||||
return Math.exp(t) * 1e8;
|
||||
}
|
||||
|
||||
export function inverseLogScale(d: number): number {
|
||||
return Math.log(d / 1e8);
|
||||
}
|
||||
|
||||
/** A reasonable initial camera radius that shows the inner planets. */
|
||||
export const DEFAULT_CAMERA_RADIUS = 1.5e10;
|
||||
@@ -0,0 +1,166 @@
|
||||
import { describe, it, expect } from 'vitest';
|
||||
import {
|
||||
bodyPositionAt,
|
||||
vesselPositionAt,
|
||||
findBodyMu,
|
||||
logScale,
|
||||
inverseLogScale,
|
||||
} from '../src/scene/layout.js';
|
||||
import type { CelestialBody, Vessel } from '@kerbal-rt/shared-types';
|
||||
|
||||
const kerbol: CelestialBody = {
|
||||
id: 'kerbol',
|
||||
name: 'Kerbol',
|
||||
kind: 'star',
|
||||
parentId: null,
|
||||
radius: 261_600_000,
|
||||
sphereOfInfluence: 1e30,
|
||||
gravitationalParameter: 1.172e18,
|
||||
rotationPeriod: 432_000,
|
||||
axialTilt: 0,
|
||||
orbit: {
|
||||
semiMajorAxis: 0,
|
||||
eccentricity: 0,
|
||||
inclination: 0,
|
||||
longitudeOfAscendingNode: 0,
|
||||
argumentOfPeriapsis: 0,
|
||||
meanAnomalyAtEpoch: 0,
|
||||
epoch: 0,
|
||||
},
|
||||
};
|
||||
|
||||
const kerbin: CelestialBody = {
|
||||
id: 'kerbin',
|
||||
name: 'Kerbin',
|
||||
kind: 'planet',
|
||||
parentId: 'kerbol',
|
||||
radius: 600_000,
|
||||
sphereOfInfluence: 84_159_286,
|
||||
gravitationalParameter: 3.5316e12,
|
||||
rotationPeriod: 21_600,
|
||||
axialTilt: 0,
|
||||
orbit: {
|
||||
semiMajorAxis: 13_599_840_256,
|
||||
eccentricity: 0, // circular for predictable test math
|
||||
inclination: 0,
|
||||
longitudeOfAscendingNode: 0,
|
||||
argumentOfPeriapsis: 0,
|
||||
meanAnomalyAtEpoch: 0,
|
||||
epoch: 0,
|
||||
},
|
||||
};
|
||||
|
||||
const mun: CelestialBody = {
|
||||
id: 'mun',
|
||||
name: 'Mun',
|
||||
kind: 'moon',
|
||||
parentId: 'kerbin',
|
||||
radius: 200_000,
|
||||
sphereOfInfluence: 2_429_559,
|
||||
gravitationalParameter: 6.514e10,
|
||||
rotationPeriod: 138_984,
|
||||
axialTilt: 0,
|
||||
orbit: {
|
||||
semiMajorAxis: 12_000_000,
|
||||
eccentricity: 0,
|
||||
inclination: 0,
|
||||
longitudeOfAscendingNode: 0,
|
||||
argumentOfPeriapsis: 0,
|
||||
meanAnomalyAtEpoch: 0,
|
||||
epoch: 0,
|
||||
},
|
||||
};
|
||||
|
||||
const bodies: CelestialBody[] = [kerbol, kerbin, mun];
|
||||
|
||||
describe('bodyPositionAt', () => {
|
||||
it('returns origin for the star', () => {
|
||||
const p = bodyPositionAt(bodies, 'kerbol', 100);
|
||||
expect(p.x).toBe(0);
|
||||
expect(p.y).toBe(0);
|
||||
expect(p.z).toBe(0);
|
||||
});
|
||||
|
||||
it('returns a non-zero position for a planet at t > 0', () => {
|
||||
const p = bodyPositionAt(bodies, 'kerbin', 1_000_000);
|
||||
const dist = Math.hypot(p.x, p.y, p.z);
|
||||
// SMA is 13.6 billion meters, so position is on that order
|
||||
expect(dist).toBeGreaterThan(1e10);
|
||||
expect(dist).toBeLessThan(2e10);
|
||||
});
|
||||
|
||||
it('returns origin for a body not in the catalog', () => {
|
||||
const p = bodyPositionAt(bodies, 'unknown', 1);
|
||||
expect(p).toEqual({ x: 0, y: 0, z: 0 });
|
||||
});
|
||||
|
||||
it('is periodic (returns near the same position after one full orbit)', () => {
|
||||
// Kerbin orbits Kerbol, so the period is computed with kerbol's μ
|
||||
const p1 = bodyPositionAt(bodies, 'kerbin', 0);
|
||||
const period =
|
||||
(2 * Math.PI) / Math.sqrt(kerbol.gravitationalParameter / Math.pow(13_599_840_256, 3));
|
||||
const p2 = bodyPositionAt(bodies, 'kerbin', period);
|
||||
expect(p1.x).toBeCloseTo(p2.x, -2);
|
||||
expect(p1.y).toBeCloseTo(p2.y, -2);
|
||||
});
|
||||
});
|
||||
|
||||
describe('vesselPositionAt', () => {
|
||||
const vessel: Vessel = {
|
||||
id: 'v1',
|
||||
name: 'Test',
|
||||
type: 'Probe',
|
||||
owner: 'KASA',
|
||||
situation: 'ORBITING',
|
||||
status: 'ACTIVE',
|
||||
orbit: {
|
||||
semiMajorAxis: 7_000_000,
|
||||
eccentricity: 0,
|
||||
inclination: 0,
|
||||
longitudeOfAscendingNode: 0,
|
||||
argumentOfPeriapsis: 0,
|
||||
meanAnomalyAtEpoch: 0,
|
||||
epoch: 0,
|
||||
},
|
||||
referenceBodyId: 'kerbin',
|
||||
createdAt: '2026-01-01T00:00:00Z',
|
||||
retiredAt: null,
|
||||
};
|
||||
|
||||
it('returns the kerbin-centered position when reference body is kerbin', () => {
|
||||
// At t=0, vessel is at (7e6, 0, 0) in kerbin frame
|
||||
const p = vesselPositionAt(bodies, vessel, 0);
|
||||
// kerbin is at (sma, 0, 0) = (13.6e9, 0, 0)
|
||||
// so vessel should be at roughly (13.6e9 + 7e6, 0, 0)
|
||||
expect(p.x).toBeCloseTo(13_599_840_256 + 7_000_000, -2);
|
||||
expect(p.y).toBeCloseTo(0, 2);
|
||||
});
|
||||
});
|
||||
|
||||
describe('findBodyMu', () => {
|
||||
it("returns the body's own gravitational parameter", () => {
|
||||
expect(findBodyMu(bodies, 'kerbin')).toBe(kerbin.gravitationalParameter);
|
||||
});
|
||||
it('returns 0 for null id', () => {
|
||||
expect(findBodyMu(bodies, null)).toBe(0);
|
||||
});
|
||||
it('returns 0 for unknown id', () => {
|
||||
expect(findBodyMu(bodies, 'nope')).toBe(0);
|
||||
});
|
||||
});
|
||||
|
||||
describe('logScale', () => {
|
||||
it('is the inverse of inverseLogScale', () => {
|
||||
for (const t of [0, 4, 8, 12]) {
|
||||
const d = logScale(t);
|
||||
expect(inverseLogScale(d)).toBeCloseTo(t, 6);
|
||||
}
|
||||
});
|
||||
it('produces reasonable distances for camera placement', () => {
|
||||
// t=4 → ~5.5e9 m (good for showing Kerbin at 13.6e9)
|
||||
expect(logScale(4)).toBeGreaterThan(1e9);
|
||||
expect(logScale(4)).toBeLessThan(1e10);
|
||||
// t=10 → ~22e12 m (good for showing all planets)
|
||||
expect(logScale(10)).toBeGreaterThan(1e12);
|
||||
});
|
||||
});
|
||||
@@ -0,0 +1,8 @@
|
||||
import { defineConfig } from 'vitest/config';
|
||||
|
||||
export default defineConfig({
|
||||
test: {
|
||||
include: ['tests/**/*.test.ts'],
|
||||
environment: 'node',
|
||||
},
|
||||
});
|
||||
Generated
+3
@@ -139,6 +139,9 @@ importers:
|
||||
vite:
|
||||
specifier: ^5.4.6
|
||||
version: 5.4.21(@types/node@22.19.19)
|
||||
vitest:
|
||||
specifier: ^2.1.1
|
||||
version: 2.1.9(@types/node@22.19.19)
|
||||
|
||||
apps/tools/mock-telemetry:
|
||||
dependencies:
|
||||
|
||||
Reference in New Issue
Block a user