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Reworked star.js for a better dataset

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This commit is contained in:
Bram van der Veen 2016-06-28 22:51:12 +02:00
parent 95e5118e14
commit 8b9517d991
1 changed files with 39 additions and 39 deletions
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48
star.js
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@ -4,39 +4,40 @@ const utils = require('./utils');
const data = require('./data.json'); const data = require('./data.json');
function Star(name, seed, position) { function Star(name, seed, position) {
var pseudoRandom = new PRNG(this.seed),
spectralClass = pseudoRandom.pick(["O", "B", "A", "F", "G", "K", "M"], [0.0001, 0.2, 1, 3, 8, 12, 20]),
spectralIndex = pseudoRandom.range(0, 9),
stellarTemplate = data.starTypes[spectralClass];
this.name = name; this.name = name;
this.seed = seed; this.seed = seed;
this.position = position; this.position = position;
this.spectralType = spectralClass + spectralIndex;
this.luminosity = stellarTemplate.luminosity * (4 / (spectralIndex + 2)) * 50;
this.radius = Math.sqrt(this.luminosity);
this.numberOfPlanets = pseudoRandom.range(stellarTemplate.planets[0], stellarTemplate.planets[1]);
this.planetSeed = pseudoRandom.range(0, 1000000);
this.color = stellarTemplate.color;
return this; return this;
} }
Star.prototype.detail = function() {
var pseudoRandom = new PRNG(this.seed)
, detail = {}
, spectralClass = pseudoRandom.pick(["O", "B", "A", "F", "G", "K", "M"], [0.0001, 0.2, 1, 3, 8, 12, 20])
, spectralIndex = pseudoRandom.range(0, 9)
, stellarTemplate = data.starTypes[spectralClass];
detail.spectralType = spectralClass + spectralIndex;
detail.luminosity = stellarTemplate.luminosity * (4 / (spectralIndex + 2)) * 50;
detail.radius = Math.sqrt(detail.luminosity);
detail.numberOfPlanets = pseudoRandom.range(stellarTemplate.planets[0], stellarTemplate.planets[1]);
detail.planetSeed = pseudoRandom.range(0, 1000000);
detail.template = stellarTemplate;
return detail;
}
Star.prototype.planets = function() { Star.prototype.planets = function() {
var detail = this.detail() var planets = [],
, planets = [] pseudoRandom = new PRNG(this.planetSeed),
, pseudoRandom = new PRNG(detail.planetSeed) radius_min = 0.4 * pseudoRandom.realRange(0.5, 2),
, radius_min = 0.4 * pseudoRandom.realRange(0.5, 2) radius_max = 50 * pseudoRandom.realRange(0.5, 2),
, radius_max = 50 * pseudoRandom.realRange(0.5, 2) total_weight = (Math.pow(this.numberOfPlanets, 2) + this.numberOfPlanets) * 0.5,
, total_weight = (Math.pow(detail.numberOfPlanets, 2) + detail.numberOfPlanets) * 0.5 r = radius_min;
, r = radius_min;
for (var i = 0; i < detail.numberOfPlanets; i++) { for (var i = 0; i < this.numberOfPlanets; i++) {
r += i / total_weight * pseudoRandom.realRange(0.5, 1) * (radius_max - radius_min); r += i / total_weight * pseudoRandom.realRange(0.5, 1) * (radius_max - radius_min);
planets.push(new Planet(utils.kappatalize(this.name) + "-" + utils.romanNumeral(i + 1),pseudoRandom.range(0, 100000),r,detail.luminosity / Math.pow(r, 2))); planets.push(new Planet(utils.kappatalize(this.name) + "-" + utils.romanNumeral(i + 1), pseudoRandom.range(0, 100000), r, this.luminosity / Math.pow(r, 2)));
} }
return planets; return planets;
} }
Star.prototype.description = function() { Star.prototype.description = function() {
let planets = []; let planets = [];
@ -46,7 +47,6 @@ Star.prototype.description = function() {
} }
return { return {
"detail": this.detail(),
"planets": planets "planets": planets
} }
} }