159 lines
4.4 KiB
TypeScript
159 lines
4.4 KiB
TypeScript
import { Engine } from "/Scripts/types/engine";
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import { CHUNK_WIDTH, ChunkGenerator, GeneratedVoxel, VoxelFunction } from "/Scripts/types/host/server/chunk/chunkgenerator";
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import { BiomeData } from "/Scripts/types/host/server/data/biomedata";
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/**
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* Converts a chunk coordinate to a real coordinate
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* @param chunk The chunk pos
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* @param world The world pos
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* @returns The real pos
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*/
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const voxelToReal = (chunk: number, world: number) => {
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return world * CHUNK_WIDTH + chunk
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}
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/**
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* Gets the voxel on the surface
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* @return The voxel
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*/
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const getSurfaceVoxel = (
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voxel: GeneratedVoxel,
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worldX: number, worldY: number, worldZ: number,
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chunkX: number, chunkY: number, chunkZ: number,
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realX: number, realY: number, realZ: number,
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surfacePercent: number,
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surfaceHeight: number,
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surfaceBiome: BiomeData
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) => {
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voxel.weight = surfacePercent * 2 - 1;
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voxel.type = 2;
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return voxel;
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}
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/**
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* Gets the voxel below the surface
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* @return The voxel
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*/
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const getSubsurfaceVoxel = (
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voxel: GeneratedVoxel,
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worldX: number, worldY: number, worldZ: number,
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chunkX: number, chunkY: number, chunkZ: number,
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realX: number, realY: number, realZ: number,
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surfacePercent: number,
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surfaceHeight: number,
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surfaceBiome: BiomeData
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) => {
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if(realY < surfaceHeight - 5){
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voxel.weight = 1;
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voxel.type = 6;
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} else {
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voxel.weight = 1;
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voxel.type = 1;
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}
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return voxel;
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}
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/**
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* Gets the voxel above the service
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* @return The voxel
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*/
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const getOverSurfaceVoxel = (
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voxel: GeneratedVoxel,
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worldX: number, worldY: number, worldZ: number,
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chunkX: number, chunkY: number, chunkZ: number,
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realX: number, realY: number, realZ: number,
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surfacePercent: number,
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surfaceHeight: number,
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surfaceBiome: BiomeData
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) => {
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voxel.weight = -1;
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voxel.type = 0;
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return voxel;
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}
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/**
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* A test generator
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*/
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export const TestGen: ChunkGenerator = {
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/**
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* Gets the tag for this generator
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* @returns The tag
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*/
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getTag: () => "test",
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/**
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* The elevation function
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* @param worldX The world x coordinate
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* @param worldZ The world z coordinate
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* @param chunkX The chunk x coordinate
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* @param chunkZ The chunk z coordinate
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*/
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getElevation: (worldX: number, worldZ: number, chunkX: number, chunkZ: number): number => {
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return 1
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},
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/**
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* Gets the function to actually get voxels
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* @param engine The engine reference
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*/
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getVoxelFunction: (
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engine: Engine
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): VoxelFunction => {
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const rVal = (
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worldX: number, worldY: number, worldZ: number,
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chunkX: number, chunkY: number, chunkZ: number,
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stride: number,
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surfaceHeight: number,
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surfaceBiome: BiomeData
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): GeneratedVoxel => {
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let rVal: GeneratedVoxel = {
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type: 0,
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weight: -1,
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}
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const realX = voxelToReal(chunkX,worldX)
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const realY = voxelToReal(chunkY,worldY)
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const realZ = voxelToReal(chunkZ,worldZ)
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const strideMultiplier = engine.classes.math.static.pow(2,stride)
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// const strideMultiplier = 1
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const heightDiff = realY - surfaceHeight
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const surfacePercent = (surfaceHeight - realY) / strideMultiplier
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if(heightDiff < -strideMultiplier){
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return getSubsurfaceVoxel(
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rVal,
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worldX, worldY, worldZ,
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chunkX, chunkY, chunkZ,
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realX, realY, realZ,
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surfacePercent,
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surfaceHeight,
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surfaceBiome
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);
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} else if(heightDiff > 0) {
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return getOverSurfaceVoxel(
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rVal,
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worldX, worldY, worldZ,
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chunkX, chunkY, chunkZ,
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realX, realY, realZ,-
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surfacePercent,
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surfaceHeight,
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surfaceBiome
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);
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} else {
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return getSurfaceVoxel(
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rVal,
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worldX, worldY, worldZ,
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chunkX, chunkY, chunkZ,
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realX, realY, realZ,
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surfacePercent,
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surfaceHeight,
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surfaceBiome
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);
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}
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}
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return rVal
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},
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} |