180 lines
8.6 KiB
JavaScript
180 lines
8.6 KiB
JavaScript
/*Version 1.1.0 Pseudorandom world generator*/
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function pseudorandom(key, num, max = 1){
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return (Math.log(key)*(num*Math.log(1625.4986772154357))) % max;
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};
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eLists.STONEELEMS = ["rock", "gravel", "tuff", "basalt", "rock_wall"];
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let oreChances = {
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diamond: 0.045,
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gold: 0.1,
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silver: 0.2,
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tungsten: 0.3,
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iron: 0.4,
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copper: 0.6,
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charcoal: 0.8,
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uranium: 0.805,
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aluminum: 1
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}
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class biome {
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constructor(layersArr, yLevels, properties, afterFunc = false){
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this.layers = layersArr;
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this.yLevels = yLevels;
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this.vMulti = 1;
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for(let item in properties){
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this[item] = properties[item];
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}
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this.generate = function(seed){
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autoResizeCanvas();
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if(!paused){togglePause();}
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let fraction = seed/(2**32);
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for(let level of this.yLevels){
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for(let x = 0; x <= width+2; x++){
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//console.log(x);
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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);
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let h = level + heightIncrease;
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for(let y = 0; y <= h; y++){
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//console.log(x,y);
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let elementsArr = this.layers[this.yLevels.indexOf(level)];
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let elem = elementsArr[Math.floor(elementsArr.length*pseudorandom((1-fraction)*pseudorandom((x+15)*(y+5), 65343, 500), 2) % elementsArr.length)] || elementsArr[0];
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//if(x == 0 || x == 1){console.log(elem);};
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let placed = tryCreate(elem, x-2, height-y);
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if(placed != null && this.temp != null){
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placed.temp = this.temp;
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}
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if(elem == "sapling" && placed){
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if(this.wc != null){
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if(Array.isArray(this.wc)){
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let c = this.wc[Math.round(Math.random()*this.wc.length)];
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while(c == undefined){
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c = this.wc[Math.round(Math.random()*this.wc.length)];
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}
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placed.wc = c;
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} else {
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placed.wc = this.wc;
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}
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}
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if(this.lc != null){
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if(Array.isArray(this.lc)){
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let c = this.lc[Math.round(Math.random()*this.lc.length)];
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while(c == undefined){
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c = this.lc[Math.round(Math.random()*this.lc.length)];
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}
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placed.lc = c;
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} else {
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placed.lc = this.lc;
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}
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}
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}
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}
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}
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}
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this.generateOreVeins(seed, this.vMulti);
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};
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}
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generateOreVeins(seed, multi = 1){
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for(let x = 0; x <= width; x++){
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for(let y = 0; y <= height; y++){
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let c = pseudorandom((seed/2**32)*pseudorandom(x*y, 657345, 600), 3);
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if(c <= 0.3){
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let c2 = pseudorandom((seed/2**32)*pseudorandom(x*y, 98755, 750), 4);
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let ore;
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for(let e in oreChances){
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if(c2 <= oreChances[e]){
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ore = e;
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break;
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}
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}
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let p = getPixel(x,y);
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if(p != null && eLists.STONEELEMS.includes(p.element)){
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tryCreate(ore, x, y, true);
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let a = true;
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let x2 = x, y2 = y;
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while(a){
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let hasStone = false;
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for(let coords of squareCoords){
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x2 += coords[0];
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y2 += coords[1];
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let p2 = getPixel(x2,y2);
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if(p2 != null && eLists.STONEELEMS.includes(p2.element) && (pseudorandom((seed/2**32)*pseudorandom(x2,y2, 350), x2*y2) < (0.35*multi))){
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hasStone = true;
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tryCreate(ore, x2, y2, true);
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}
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if(pseudorandom((seed/2**32)*x2*y2, 6) < 0.15){
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a = false;
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break;
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}
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}
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a = (hasStone) ? a : false;
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}
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}
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}
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}
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}
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if(this.afterFunc != null){
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this.afterFunc(seed);
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}
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}
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}
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let biomes = {
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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]),
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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]),
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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"]}),
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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}),
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}
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let seed = Math.random()*(2**32);
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enabledMods.forEach((item)=>{
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if(item.includes("plants.js")){
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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)=>{
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for(let i = 0; i < width; i++){
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console.log(i, width);
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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";
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if(elem != undefined && elem != "grass"){elem += "_seed"};
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elem = (elem == undefined) ? "apple_seed" : elem;
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tryCreate(elem, i, 42);
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}
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}});
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}
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});
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elements.PRNGgenerate = {
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category: "tools",
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onSelect: function(){
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let arr = [];
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let txt = shiftDown;
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Object.keys(biomes).forEach(function(b){arr.push(b);})
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promptInput("Leave blank to generate new seed. Your current seed is: " + seed, function(i){
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seed = (i != null && i.toLowerCase() == "c") ? seed : parseFloat(i) || Math.random()*(2**32);
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seed = seed % (2**32);
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if(!txt){
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promptChoose("", arr, (choice)=>{
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biomes[choice].generate(seed);
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promptText("World generation complete.");
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selectElement('dirt');
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}, "Select a biome to generate: ");
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} else {
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let str = "";
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for(let key in biomes){
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str += `${key},`;
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}
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str = str.replace(/^,|,$/g, '');
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promptInput("Enter the name of a biome (caps-insensetive) \nBiomes Available: " + str, function(inp){
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if(!arr.includes(inp.toLowerCase())){
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promptText("Invalid selection.");
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}else {
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biomes[inp.toLowerCase()].generate(seed);
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promptText("World generation complete.");
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selectElement('dirt');
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}
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}, "Enter Biome")
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}
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}, "Enter seed:");
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}
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}
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elements.view_seed = {
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category: "tools",
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onSelect: function(){
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alert(seed);
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selectElement("dirt");
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}
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}
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