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Faster and more random generation 

By replacing a for loop with Math.log(), it is able to generate a world in ~3 or less seconds compared to the 20+ seconds using a loop. additionally, the use of pseudorandom within the parameters of another pseudorandom function makes it appear more random and unpredictable.
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Alexthetransfem 2025-10-29 15:57:45 -05:00 committed by GitHub
parent 248e169bc9
commit eef7fb9756
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1 changed files with 41 additions and 23 deletions
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64
mods/PRNGworldgenlib.js
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@ -1,11 +1,7 @@
/*Version 1.0.0 Pseudorandom world generator*/
function pseudorandom(key, max = 10){
let num = max;
for(let i = 0; i < key; i++){
num = ((num+(max*0.6))**1.8312312-2) % (max+1);
}
return num;
}
/*Version 1.1.0 Pseudorandom world generator*/
function pseudorandom(key, num, max = 1){
return (Math.log(key)*(num*Math.log(1625.4986772154357))) % max;
};
eLists.STONEELEMS = ["rock", "gravel", "tuff", "basalt", "rock_wall"];
let oreChances = {
diamond: 0.045,
@ -31,13 +27,17 @@ class biome {
if(!paused){togglePause();}
let fraction = seed/(2**32);
for(let level of this.yLevels){
for(let x = 0; x <= width; x++){
let heightIncrease = (fraction < 0.5) ? -3*(pseudorandom(((1-fraction)*x)*100)/11) : 3*(pseudorandom((fraction*x)*100)/11);
for(let x = 0; x <= width+2; x++){
//console.log(x);
let heightIncrease = (fraction < 0.5) ? -3*pseudorandom(((1-fraction)*(x+1))*(100*pseudorandom(x, 1241, 500)), 1) : 3*pseudorandom(((fraction)*(x+1))*(100*pseudorandom(x, 1241, 500)), 1);
let h = level + heightIncrease;
for(let y = 0; y <= h; y++){
//console.log(x,y);
let elementsArr = this.layers[this.yLevels.indexOf(level)];
let elem = elementsArr[Math.floor(((fraction < 0.5) ? elementsArr.length*pseudorandom(((1-fraction)*((x*y)*13))/11) : elementsArr.length*(pseudorandom((fraction*(x*y*17)))/11))%elementsArr.length)];
let placed = tryCreate(elem, x, height-y);
let elem = elementsArr[Math.floor(elementsArr.length*pseudorandom((1-fraction)*pseudorandom((x+15)*(y+5), 65343, 500), 2) % elementsArr.length)] || elementsArr[0];
//if(x == 0 || x == 1){console.log(elem);};
let placed = tryCreate(elem, x-2, height-y);
if(placed != null && this.temp != null){
placed.temp = this.temp;
}
@ -75,9 +75,9 @@ class biome {
generateOreVeins(seed, multi = 1){
for(let x = 0; x <= width; x++){
for(let y = 0; y <= height; y++){
let c = pseudorandom((seed/2**32)*x*y)/11;
let c = pseudorandom((seed/2**32)*pseudorandom(x*y, 657345, 600), 3);
if(c <= 0.3){
let c2 = pseudorandom((seed/2**32)*(x*y)*3)/11;
let c2 = pseudorandom((seed/2**32)*pseudorandom(x*y, 98755, 750), 4);
let ore;
for(let e in oreChances){
if(c2 <= oreChances[e]){
@ -96,11 +96,11 @@ class biome {
x2 += coords[0];
y2 += coords[1];
let p2 = getPixel(x2,y2);
if(p2 != null && eLists.STONEELEMS.includes(p2.element) && (pseudorandom((seed/2**32)*x2*y2)/11) < (0.35*multi)){
if(p2 != null && eLists.STONEELEMS.includes(p2.element) && (pseudorandom((seed/2**32)*pseudorandom(x2,y2, 350), x2*y2) < (0.35*multi))){
hasStone = true;
tryCreate(ore, x2, y2, true);
}
if((pseudorandom((seed/2**32)*(x2*y2)*8)/11) < 0.15){
if(pseudorandom((seed/2**32)*x2*y2, 6) < 0.15){
a = false;
break;
}
@ -128,7 +128,7 @@ enabledMods.forEach((item)=>{
biomes.orchard = new biome([["rock","rock","rock","gravel"], ["dirt", "dirt", "dirt", "rock", "gravel"], ["dirt", "dirt", "dirt", "dirt", "mud", "clay_soil", "gravel"]], [25, 30, 38], {afterFunc: (seed)=>{
for(let i = 0; i < width; i++){
console.log(i, width);
let elem = ((pseudorandom((seed/2**32)*i)/11) < 0.15) ? plants.tree[(Math.round(Math.random()*plants.tree.length)) % plants.tree.length] : "grass";
let elem = (pseudorandom((seed/2**32)*pseudorandom(i, 6544, 500), 7) < 0.15) ? plants.tree[(Math.round(Math.random()*plants.tree.length)) % plants.tree.length] : "grass";
if(elem != undefined && elem != "grass"){elem += "_seed"};
elem = (elem == undefined) ? "apple_seed" : elem;
tryCreate(elem, i, 42);
@ -140,15 +140,33 @@ elements.PRNGgenerate = {
category: "tools",
onSelect: function(){
let arr = [];
let txt = shiftDown;
Object.keys(biomes).forEach(function(b){arr.push(b);})
promptInput("Leave blank to generate new seed. Your current seed is: " + seed, function(i){
seed = parseInt(i) || Math.random()*(2**32);
seed = (i != null && i.toLowerCase() == "c") ? seed : parseFloat(i) || Math.random()*(2**32);
seed = seed % (2**32);
promptChoose("", arr, (choice)=>{
biomes[choice].generate(seed);
promptText("World generation complete.");
selectElement('dirt');
}, "Select a biome to generate: ");
if(!txt){
promptChoose("", arr, (choice)=>{
biomes[choice].generate(seed);
promptText("World generation complete.");
selectElement('dirt');
}, "Select a biome to generate: ");
} else {
let str = "";
for(let key in biomes){
str += `${key},`;
}
str = str.replace(/^,|,$/g, '');
promptInput("Enter the name of a biome (caps-insensetive) \nBiomes Available: " + str, function(inp){
if(!arr.includes(inp.toLowerCase())){
promptText("Invalid selection.");
}else {
biomes[inp.toLowerCase()].generate(seed);
promptText("World generation complete.");
selectElement('dirt');
}
}, "Enter Biome")
}
}, "Enter seed:");
}
}