commodore
/
sandboxels
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Create PRNGworldgenlib.js

This commit is contained in:
Alexthetransfem 2025-09-27 20:30:37 -05:00 committed by GitHub
parent 9d0b60e3a8
commit f25ccb65bf
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 154 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

154
mods/PRNGworldgenlib.js Normal file
View File

@ -0,0 +1,154 @@
/*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;
}
eLists.STONEELEMS = ["rock", "gravel", "tuff", "basalt", "rock_wall"];
let oreChances = {
diamond: 0.045,
gold: 0.1,
silver: 0.2,
tungsten: 0.3,
iron: 0.4,
copper: 0.6,
charcoal: 0.8,
uranium: 0.805,
aluminum: 1
}
class biome {
constructor(layersArr, yLevels, properties, afterFunc = false){
this.layers = layersArr;
this.yLevels = yLevels;
this.vMulti = 1;
for(let item in properties){
this[item] = properties[item];
}
this.generate = function(seed){
autoResizeCanvas();
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);
let h = level + heightIncrease;
for(let y = 0; y <= h; 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);
if(placed != null && this.temp != null){
placed.temp = this.temp;
}
if(elem == "sapling" && placed){
if(this.wc != null){
if(Array.isArray(this.wc)){
let c = this.wc[Math.round(Math.random()*this.wc.length)];
while(c == undefined){
c = this.wc[Math.round(Math.random()*this.wc.length)];
}
placed.wc = c;
} else {
placed.wc = this.wc;
}
}
if(this.lc != null){
if(Array.isArray(this.lc)){
let c = this.lc[Math.round(Math.random()*this.lc.length)];
while(c == undefined){
c = this.lc[Math.round(Math.random()*this.lc.length)];
}
placed.lc = c;
} else {
placed.lc = this.lc;
}
}
}
}
}
}
this.generateOreVeins(seed, this.vMulti);
};
}
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;
if(c <= 0.3){
let c2 = pseudorandom((seed/2**32)*(x*y)*3)/11;
let ore;
for(let e in oreChances){
if(c2 <= oreChances[e]){
ore = e;
break;
}
}
let p = getPixel(x,y);
if(p != null && eLists.STONEELEMS.includes(p.element)){
tryCreate(ore, x, y, true);
let a = true;
let x2 = x, y2 = y;
while(a){
let hasStone = false;
for(let coords of squareCoords){
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)){
hasStone = true;
tryCreate(ore, x2, y2, true);
}
if((pseudorandom((seed/2**32)*(x2*y2)*8)/11) < 0.15){
a = false;
break;
}
}
a = (hasStone) ? a : false;
}
}
}
}
}
if(this.afterFunc != null){
this.afterFunc(seed);
}
}
}
let biomes = {
plains: new biome([["rock", "rock", "rock", "gravel"], ["dirt", "dirt", "dirt", "dirt", "mud", "gravel"], ["grass","flower_seed","grass","grass","grass","grass","sapling","grass","grass","grass","grass","grass","grass","grass","grass"]], [25, 38, 40]),
desert: new biome([["rock", "rock", "rock", "gravel"], ["rock", "packed_sand","rock", "packed_sand", "sand"], ["sand"], [null, null, null, null, null, null, null, null, null, "cactus"]], [17, 26, 40, 42]),
savanna: new biome([["rock", "rock", "rock", "gravel"], ["dirt", "dirt", "clay_soil", "dirt", "dirt"], ["grass",null,null, null, null, null, "sapling",null,null,null,null]], [25, 38, 40], {lc: ["#6fde26", "#8eed34", "#8cdb42", "#7bd12a", "#96e81c", "#a9e64e", "#a0d94c", "#a9d63e"], wc: ["#bdab7e", "#b09c6a", "#ab996d", "#998a63", "#917959", "#877051"]}),
tundra: new biome([["rock", "rock", "rock", "gravel"], ["dirt", "dirt", "rock", "permafrost"], ["permafrost", "permafrost", "permafrost", "permafrost", "permafrost", "permafrost", "ice", "snow"], [null,null,null,null,null,"pinecone",null,null,null,null,null,null]], [25, 30, 38, 40], {temp: -15}),
}
let seed = Math.random()*(2**32);
enabledMods.forEach((item)=>{
if(item.includes("plants.js")){
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";
if(elem != undefined && elem != "grass"){elem += "_seed"};
elem = (elem == undefined) ? "apple_seed" : elem;
tryCreate(elem, i, 42);
}
}});
}
});
elements.PRNGgenerate = {
category: "tools",
onSelect: function(){
let arr = [];
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 = seed % (2**32);
promptChoose("", arr, (choice)=>{
biomes[choice].generate(seed);
promptText("World generation complete.");
selectElement('dirt');
}, "Select a biome to generate: ");
}, "Enter seed:");
}
}