83 lines
2.3 KiB
TypeScript
83 lines
2.3 KiB
TypeScript
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import { makeNoise2D, Noise2D } from "../../external/OpenSimplex2D";
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import { makeNoise3D, Noise3D } from "../../external/OpenSimplex3D";
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import { Block } from "../blocks/Block";
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import { Chunk } from "../Chunk";
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import mulberry32 from "../mulberry32";
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import { IGenerator } from "./IGenerator";
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export class NewOverworld implements IGenerator {
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private seed:number;
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seedGenerator:() => number;
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public layer1:Noise3D;
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public layer2:Noise3D;
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public mix:Noise3D;
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public maxHeight:Noise2D;
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private createGenerator2D() {
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return makeNoise2D(this.seedGenerator() * Number.MAX_SAFE_INTEGER);
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}
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private createGenerator3D() {
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return makeNoise3D(this.seedGenerator() * Number.MAX_SAFE_INTEGER);
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}
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public constructor(seed:number) {
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this.seed = seed;
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this.seedGenerator = mulberry32(this.seed);
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this.layer1 = this.createGenerator3D();
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this.layer2 = this.createGenerator3D();
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this.mix = this.createGenerator3D();
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this.maxHeight = this.createGenerator2D();
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}
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private noiseForCoord(chunk:Chunk, x:number, y:number, z:number) {
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const mixValue = this.mix((chunk.x * 16 + x) / 16, y / 16, (chunk.z * 16 + z) / 16);
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const layer1 = this.layer1((chunk.x * 16 + x) / 64, y / 64, (chunk.z * 16 + z) / 64) / 2048;
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const layer2 = this.layer2((chunk.x * 16 + x) / 64, y / 64, (chunk.z * 16 + z) / 64) / 2048;
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const maxHeightLayer = 80 + this.maxHeight((chunk.x * 16 + x) / 64, (chunk.z * 16 + z) / 64) * 32;
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if (y > maxHeightLayer) {
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return 0;
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}
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if (mixValue < 0) {
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return layer1;
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} else if (mixValue > 1) {
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return layer2;
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} else {
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return layer1 + (layer2 - layer1) * mixValue;
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}
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}
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public generate(chunk:Chunk) {
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for (let y = 0; y < 128; y++) {
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for (let x = 0; x < 16; x++) {
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for (let z = 0; z < 16; z++) {
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if (y === 0 || (y < 3 && this.layer1(x, y, z) > 0.1)) {
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chunk.setBlock(Block.bedrock.blockId, x, y, z);
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} else {
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if (this.noiseForCoord(chunk, x, y, z) > 0) {
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chunk.setBlock(Block.stone.blockId, x, y, z);
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} else if (y < 64) {
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chunk.setBlock(Block.waterStill.blockId, x, y, z);
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}
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}
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}
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}
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}
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for (let y = 0; y < 128; y++) {
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for (let x = 0; x < 16; x++) {
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for (let z = 0; z < 16; z++) {
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if (y === 0 || (y < 3 && this.layer1(x, y, z) > 0.1)) {
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chunk.setBlock(Block.bedrock.blockId, x, y, z);
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} else {
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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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