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js/world/body.mjs

@@ -114,9 +114,10 @@ export default class Body {
 		this.gravity = true;
 		let speed = Math.sqrt(G * cel.mass / (altitude + cel.radius));
 		let [cx, cy] = cel.com;
+		let [comX, comY] = this.localCom;
 		let [dx, dy] = this.rotateVector(0, -(altitude + cel.radius), angle);
 		[this.xvel, this.yvel] = this.rotateVector(speed, 0, angle);
-		this.x = cx + dx;
-		this.y = cy + dy;
+		this.x = cx + dx - comX;
+		this.y = cy + dy - comY;
 	}
 }

js/world/entity.mjs

@@ -38,6 +38,10 @@ export default class Entity extends Body {
 		return [this.x + this.width / 2, this.y + this.height / 2];
 	}
 
+	get localCom() {
+		return [this.width / 2, this.height / 2];
+	}
+
 	remove() {
 		entities.delete(this);
 	}

js/world/spawn.mjs

@@ -53,24 +53,39 @@ function spawnSector(x, y) {
 	spawnedSectors.add(`${x}.${y}`);
 }
 
-function randomPlanet(x, y) {
-	let rad = Math.random() * 60 + 30;
+function randomPlanet(x, y, {
+		radius = Math.random() * 60 + 30,
+		type = 'green',
+		density = 3
+	} = {}) {
+
 	let [cel, dis] = nearest(x, y, world.celestials);
 	let mcs = consts.MIN_CELESTIAL_SPACING;
 
-	if (dis < Math.max(rad, cel.radius) * mcs) return;
+	if (cel !== null && dis < Math.max(radius, cel.radius) * mcs) return;
 
-	let planet = celestial(x, y, rad, {
-		density: 3,
-		type: 'green'
+	let planet = celestial(x, y, radius, {
+		density: density,
+		type: type
 	});
 
-	for (let i = 1.5; i < 8; i += 1) {
+	for (let i = 0.1; i < 4; i += 1) {
 		if (Math.random() > consts.ENTITY_SPAWN_RATE) {
 			let e = randomEntity();
-			e.orbit(planet, i * rad, Math.random() * Math.PI * 2);
+			e.orbit(planet, i * radius, Math.random() * Math.PI * 2);
 		}
 	}
+
+	for (let i = 0; i < 5; i++) {
+		if (Math.random() > consts.ENTITY_SPAWN_RATE || true) {
+			let e = randomEntity();
+			e.orbit(planet, 1.5, Math.random() * Math.PI * 2);
+			e.gravity = false;
+			e.halt();
+		}
+	}
+
+	return planet;
 }
 
 function randomEntity(x, y) {
@@ -107,7 +122,8 @@ export function player() {
 }
 
 export function startPlanet() {
-	return celestial(0, 0, 40, {
+	return randomPlanet(0, 0, {
+		radius: 40,
 		density: 3,
 		type: 'green'
 	});