Fixed issues with inconsistent PRNG mechanics

index.js

@@ -12,17 +12,34 @@ function generate(seed, amount) {
   if (!amount) amount = 1000;
   if (!seed) seed = 1234;
 
-  var spiral_arms = 2, spiral_angle_degrees = 360, min_radius = 0.05, max_radius = 0.9, thickness = 0.1, scatter_theta = Math.PI / spiral_arms * 0.2, scatter_radius = min_radius * 0.4, spiral_b = spiral_angle_degrees / Math.PI * min_radius / max_radius, start = (new Date()).getTime(), names = [], rejects = {
+  var spiral_arms = 2,
+      spiral_angle_degrees = 360,
+      min_radius = 0.05,
+      max_radius = 0.9,
+      thickness = 0.1,
+      scatter_theta = Math.PI / spiral_arms * 0.2,
+      scatter_radius = min_radius * 0.4,
+      spiral_b = spiral_angle_degrees / Math.PI * min_radius / max_radius,
+
+      start = (new Date()).getTime(),
+      names = [],
+
+      rejects = {
         badwords: 0,
         duplicates: 0
-  }, totalCount = amount, i, position;
+      },
 
-  pseudoRandom = new PRNG(seed);
+      totalCount = amount,
+      i,
+      position,
+      lastSeed;
+
+  prng = new PRNG(seed);
 
   for (i = 0; i < totalCount; i++) {
-      var number_of_syllables = Math.floor(pseudoRandom.value() * 2 + 2), new_name;
+      var number_of_syllables = Math.floor(prng.value() * 2 + 2), new_name;
       while (true) {
-          new_name = utils.random_name(pseudoRandom, number_of_syllables);
+          new_name = utils.random_name(prng, number_of_syllables);
           if (names.indexOf(new_name) >= 0) {
               rejects.duplicates++;
           } else if (data.badwords.indexOf(new_name) >= 0 || data.badwords.indexContains(new_name) >= 0) {
@@ -32,17 +49,21 @@ function generate(seed, amount) {
           }
       }
       names.push(new_name);
-      var r = pseudoRandom.realRange(min_radius, max_radius);
+      var r = prng.realRange(min_radius, max_radius);
-      var theta = spiral_b * Math.log(r / max_radius) + pseudoRandom.gaussrandom(scatter_theta);
+      var theta = spiral_b * Math.log(r / max_radius) + prng.gaussrandom(scatter_theta);
-      r += pseudoRandom.gaussrandom(scatter_radius);
+      r += prng.gaussrandom(scatter_radius);
       // assign to a spiral arm
-      theta += pseudoRandom.range(0, spiral_arms - 1) * Math.PI * 2 / spiral_arms;
+      theta += prng.range(0, spiral_arms - 1) * Math.PI * 2 / spiral_arms;
       position = {
           x: (Math.cos(theta) * r) * 100,
           y: (Math.sin(theta) * r) * 100,
-          z: pseudoRandom.gaussrandom(thickness * 0.5) * 100
+          z: prng.gaussrandom(thickness * 0.5) * 100
       };
-      stars.push(new Star(new_name,pseudoRandom.range(1, 100000),position));
+
+      //FIXME: For some fucking reason the code only works if I call a prng value right here.
+      prng.value()
+
+      stars.push(new Star(new_name, Math.floor(prng.value() * 100000), position));
   }
 
   return stars;

planet.js

@@ -2,7 +2,7 @@ const PRNG = require('./prng');
 const utils = require('./utils');
 
 function Planet(name, seed, orbitalRadius, insolation, hasStation) {
-  var pseudoRandom = new PRNG(this.seed),
+  var pseudoRandom = new PRNG(seed),
   template = pseudoRandom.pick(planetTypes, [insolation * 100, 10, 1]);
 
   this.name = name;
@@ -31,8 +31,8 @@ function Planet(name, seed, orbitalRadius, insolation, hasStation) {
 
 Planet.prototype.generateStation = function (prng) {
   return {
-    size: prng.pick(['mini', 'small', 'medium', 'big'], [30, 40, 20, 10]),
+    size: prng.pick(['small', 'big', 'epic'], [498, 499, 8]),
-    economy: prng.pick(['mining', 'agricultural', 'military', 'tech', 'industrial', 'residential'], [15, 30, 10, 15, 10, 30])
+    economy: prng.pick(['mining', 'agricultural',  'tech', 'industrial', 'residential'], [15, 30, 15, 10, 30])
 
   }
 }

prng.js

@@ -2,11 +2,14 @@ const MersenneTwister = require('./twister');
 
 function PRNG(seed) {
     this.mt = new MersenneTwister(seed);
+    this.seed = seed;
     return this;
 };
 
+PRNG.prototype.seed = 0;
+
 PRNG.prototype.value = function() {
-    return this.mt.random();
+  return this.mt.random()
 };
 
 PRNG.prototype.range = function(min, max) {
@@ -63,6 +66,7 @@ PRNG.prototype.pick = function(a, weights) {
     } else {
       idx = this.range(0, a.length - 1);
     }
+
     return a[idx];
 };
 

star.js

@@ -4,19 +4,22 @@ const utils = require('./utils');
 const data = require('./data.json');
 
 function Star(name, seed, position) {
-  var pseudoRandom = new PRNG(this.seed),
+  var pseudoRandom = new PRNG(seed),
-     spectralClass = pseudoRandom.pick(["O", "B", "A", "F", "G", "K", "M"], [0.0001, 0.2, 1, 3, 8, 12, 20]),
+     spectralClass = pseudoRandom.pick(["black hole", "O", "B", "A", "F", "G", "K", "M"], [.5, 0.0001, 0.2, 1, 3, 8, 12, 20]),
      spectralIndex = pseudoRandom.range(0, 9),
      stellarTemplate = data.starTypes[spectralClass];
 
   this.name = name;
   this.seed = seed;
   this.position = position;
+  if (spectralClass != 'black hole')
     this.spectralType = spectralClass + spectralIndex;
+  else
+    this.spectralType = spectralClass;
   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.numberOfStations = pseudoRandom.range(0, this.numberOfPlanets / 8);
+  this.numberOfStations = pseudoRandom.range(0, this.numberOfPlanets / 20);
   this.planetSeed = pseudoRandom.range(0, 1000000);
   this.color = stellarTemplate.color;
   this.planets = this.generatePlanets();
@@ -37,15 +40,15 @@ Star.prototype.generatePlanets = function () {
       planets.push(new Planet(utils.kappatalize(this.name) + "-" + utils.romanNumeral(i + 1), pseudoRandom.range(0, 1000000), r, this.luminosity / Math.pow(r, 2)));
   }
 
-  this.divideStations(planets);
+  this.divideStations(planets, this.seed);
 
   return planets;
 }
 
-Star.prototype.divideStations = function (planets) {
+Star.prototype.divideStations = function (planets, seed) {
   var stations = this.numberOfStations || 0;
   var i = planets.length - 1;
-  var pseudoRandom = new PRNG(this.seed);
+  var pseudoRandom = new PRNG(seed);
 
   for (i = 0; i < stations; i++) {
     var arr = []