mirror of
https://github.com/Minecraft-Community-Edition/client.git
synced 2026-05-23 17:44:34 +00:00
400 lines
10 KiB
C++
400 lines
10 KiB
C++
#include "stdafx.h"
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#include "net.minecraft.world.level.h"
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#include "net.minecraft.world.level.biome.h"
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#include "net.minecraft.world.level.levelgen.h"
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#include "net.minecraft.world.level.levelgen.feature.h"
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#include "net.minecraft.world.level.levelgen.synth.h"
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#include "net.minecraft.world.level.tile.h"
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#include "net.minecraft.world.level.storage.h"
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#include "AetherLevelSource.h"
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AetherLevelSource::AetherLevelSource(Level *level, __int64 seed)
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{
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m_XZSize = level->getLevelData()->getXZSize();
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this->level = level;
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random = new Random(seed);
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pprandom = new Random(seed);
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lperlinNoise1 = new PerlinNoise(random, 16);
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lperlinNoise2 = new PerlinNoise(random, 16);
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perlinNoise1 = new PerlinNoise(random, 8);
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scaleNoise = new PerlinNoise(random, 10);
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depthNoise = new PerlinNoise(random, 16);
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// Island mask noise — creates scattered island clusters across the world
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islandNoise = new PerlinNoise(random, 4);
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// Carving noise — cuts irregular shapes into islands
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carvingNoise = new PerlinNoise(random, 6);
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}
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AetherLevelSource::~AetherLevelSource()
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{
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delete random;
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delete pprandom;
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delete lperlinNoise1;
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delete lperlinNoise2;
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delete perlinNoise1;
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delete scaleNoise;
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delete depthNoise;
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delete islandNoise;
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delete carvingNoise;
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}
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void AetherLevelSource::prepareHeights(int xOffs, int zOffs, byteArray blocks, BiomeArray biomes)
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{
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doubleArray buffer;
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int xChunks = 16 / CHUNK_WIDTH;
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int xSize = xChunks + 1;
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int ySize = Level::genDepth / CHUNK_HEIGHT + 1;
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int zSize = xChunks + 1;
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buffer = getHeights(buffer, xOffs * xChunks, 0, zOffs * xChunks, xSize, ySize, zSize);
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for (int xc = 0; xc < xChunks; xc++)
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{
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for (int zc = 0; zc < xChunks; zc++)
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{
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for (int yc = 0; yc < Level::genDepth / CHUNK_HEIGHT; yc++)
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{
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double yStep = 1 / (double) CHUNK_HEIGHT;
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double s0 = buffer[((xc + 0) * zSize + (zc + 0)) * ySize + (yc + 0)];
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double s1 = buffer[((xc + 0) * zSize + (zc + 1)) * ySize + (yc + 0)];
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double s2 = buffer[((xc + 1) * zSize + (zc + 0)) * ySize + (yc + 0)];
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double s3 = buffer[((xc + 1) * zSize + (zc + 1)) * ySize + (yc + 0)];
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double s0a = (buffer[((xc + 0) * zSize + (zc + 0)) * ySize + (yc + 1)] - s0) * yStep;
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double s1a = (buffer[((xc + 0) * zSize + (zc + 1)) * ySize + (yc + 1)] - s1) * yStep;
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double s2a = (buffer[((xc + 1) * zSize + (zc + 0)) * ySize + (yc + 1)] - s2) * yStep;
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double s3a = (buffer[((xc + 1) * zSize + (zc + 1)) * ySize + (yc + 1)] - s3) * yStep;
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for (int y = 0; y < CHUNK_HEIGHT; y++)
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{
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double xStep = 1 / (double) CHUNK_WIDTH;
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double _s0 = s0;
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double _s1 = s1;
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double _s0a = (s2 - s0) * xStep;
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double _s1a = (s3 - s1) * xStep;
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for (int x = 0; x < CHUNK_WIDTH; x++)
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{
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int offs = (x + xc * CHUNK_WIDTH) << Level::genDepthBitsPlusFour | (0 + zc * CHUNK_WIDTH) << Level::genDepthBits | (yc * CHUNK_HEIGHT + y);
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int step = 1 << Level::genDepthBits;
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double zStep = 1 / (double) CHUNK_WIDTH;
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double val = _s0;
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double vala = (_s1 - _s0) * zStep;
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for (int z = 0; z < CHUNK_WIDTH; z++)
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{
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int tileId = 0;
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if (val > 0)
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{
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tileId = Tile::holystone_Id;
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}
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blocks[offs] = (byte) tileId;
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offs += step;
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val += vala;
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}
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_s0 += _s0a;
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_s1 += _s1a;
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}
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s0 += s0a;
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s1 += s1a;
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s2 += s2a;
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s3 += s3a;
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}
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}
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}
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}
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delete [] buffer.data;
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}
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void AetherLevelSource::buildSurfaces(int xOffs, int zOffs, byteArray blocks, BiomeArray biomes)
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{
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for (int x = 0; x < 16; x++)
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{
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for (int z = 0; z < 16; z++)
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{
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int run = -1;
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int runDepth = 3;
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byte top = (byte) Tile::aetherGrass_Id;
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byte mid = (byte) Tile::aetherDirt_Id;
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byte base = (byte) Tile::holystone_Id;
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for (int y = Level::genDepthMinusOne; y >= 0; y--)
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{
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int offs = (z * 16 + x) * Level::genDepth + y;
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int old = blocks[offs];
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if (old == 0)
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{
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run = -1;
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}
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else if (old == Tile::holystone_Id)
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{
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if (run == -1)
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{
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if (runDepth <= 0)
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{
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top = 0;
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mid = base;
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}
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run = runDepth;
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// Top-most block: aether grass
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blocks[offs] = top;
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}
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else if (run > 0)
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{
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run--;
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// Underneath the top: aether dirt
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blocks[offs] = mid;
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}
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// When run reaches 0, the block stays as holystone
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}
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}
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}
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}
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}
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LevelChunk *AetherLevelSource::create(int x, int z)
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{
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return getChunk(x, z);
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}
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LevelChunk *AetherLevelSource::getChunk(int xOffs, int zOffs)
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{
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random->setSeed(xOffs * 341873128712l + zOffs * 132897987541l);
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BiomeArray biomes;
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unsigned int blocksSize = Level::genDepth * 16 * 16;
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byte *tileData = (byte *)XPhysicalAlloc(blocksSize, MAXULONG_PTR, 4096, PAGE_READWRITE);
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XMemSet128(tileData, 0, blocksSize);
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byteArray blocks = byteArray(tileData, blocksSize);
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level->getBiomeSource()->getBiomeBlock(biomes, xOffs * 16, zOffs * 16, 16, 16, true);
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prepareHeights(xOffs, zOffs, blocks, biomes);
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buildSurfaces(xOffs, zOffs, blocks, biomes);
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LevelChunk *levelChunk = new LevelChunk(level, blocks, xOffs, zOffs);
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XPhysicalFree(tileData);
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// 4J - recalcHeightmap moved to lightChunk() so it runs after the chunk is in the cache.
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// Without this, lightGaps() fails because the chunk isn't findable via hasChunk yet.
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delete biomes.data;
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return levelChunk;
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}
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doubleArray AetherLevelSource::getHeights(doubleArray buffer, int x, int y, int z, int xSize, int ySize, int zSize)
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{
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if (buffer.data == NULL)
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{
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buffer = doubleArray(xSize * ySize * zSize);
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}
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double s = 1 * 684.412;
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double hs = 1 * 684.412;
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doubleArray pnr, ar, br, sr, dr;
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sr = scaleNoise->getRegion(sr, x, z, xSize, zSize, 1.121, 1.121, 0.5);
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dr = depthNoise->getRegion(dr, x, z, xSize, zSize, 200.0, 200.0, 0.5);
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s *= 2;
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pnr = perlinNoise1->getRegion(pnr, x, y, z, xSize, ySize, zSize, s / 80.0, hs / 160.0, s / 80.0);
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ar = lperlinNoise1->getRegion(ar, x, y, z, xSize, ySize, zSize, s, hs, s);
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br = lperlinNoise2->getRegion(br, x, y, z, xSize, ySize, zSize, s, hs, s);
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// Island noise — creates scattered island clusters
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doubleArray inr;
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inr = islandNoise->getRegion(inr, x, z, xSize, zSize, 0.35, 0.35, 0.5);
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// Carving noise — cuts irregular shapes and hollows into islands
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doubleArray cnr;
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cnr = carvingNoise->getRegion(cnr, x, y, z, xSize, ySize, zSize, s / 30.0, hs / 30.0, s / 30.0);
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// World bounds for edge fade (in noise column units)
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float worldHalf = (float)m_XZSize;
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int p = 0;
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int pp = 0;
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for (int xx = 0; xx < xSize; xx++)
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{
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for (int zz = 0; zz < zSize; zz++)
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{
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double scale = ((sr[pp] + 256.0) / 512);
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if (scale > 1) scale = 1;
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double depth = (dr[pp] / 8000.0);
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if (depth < 0) depth = -depth * 0.3;
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depth = depth * 3.0 - 2.0;
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// Island formation — higher threshold creates distinct scattered islands
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float islandVal = (float)inr[pp];
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float doffs = islandVal * 100.0f - 60.0f;
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// Edge fade scaled to actual world size
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float xd = (float)(xx + x);
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float zd = (float)(zz + z);
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float edgeDist = sqrt(xd * xd + zd * zd);
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float fadeStart = worldHalf * 0.85f;
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float edgeFade;
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if (edgeDist < fadeStart)
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edgeFade = 80.0f;
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else
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edgeFade = 80.0f - ((edgeDist - fadeStart) / (worldHalf - fadeStart)) * 180.0f;
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if (edgeFade < -100) edgeFade = -100;
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// Islands only appear where both noise and edge conditions allow
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if (edgeFade < doffs) doffs = edgeFade;
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if (doffs < -100) doffs = -100;
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if (doffs > 80) doffs = 80;
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// Use depth noise to shift terrain center — creates shelf-like elevation steps
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if (depth > 2) depth = 2;
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if (depth < -2) depth = -2;
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double depthShift = depth * 1.5;
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if (scale < 0) scale = 0;
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scale = (scale) + 0.5;
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pp++;
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double yCenter = ySize / 2.0 + depthShift;
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for (int yy = 0; yy < ySize; yy++)
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{
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double val = 0;
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double yOffs = (yy - yCenter) * 8 / scale;
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if (yOffs < 0) yOffs *= -1;
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double bb = ar[p] / 512;
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double cc = br[p] / 512;
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double v = (pnr[p] / 10 + 1) / 2;
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if (v < 0) val = bb;
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else if (v > 1) val = cc;
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else val = bb + (cc - bb) * v;
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val -= 8;
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val += doffs;
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// Carving — cut irregular shapes and hollows into solid areas
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double carve = cnr[p] / 384.0;
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if (val > 0 && carve < -6.0)
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{
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val += (carve + 6.0) * 2.0;
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}
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// Slide down at the top of the world
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int r = 2;
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if (yy > ySize / 2 - r)
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{
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double slide = (yy - (ySize / 2 - r)) / (64.0f);
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if (slide < 0) slide = 0;
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if (slide > 1) slide = 1;
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val = val * (1 - slide) + -3000 * slide;
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}
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// Slide down at the bottom of the world
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r = 10;
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if (yy < r)
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{
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double slide = (r - yy) / (r - 1.0f);
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val = val * (1 - slide) + -30 * slide;
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}
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buffer[p] = val;
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p++;
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}
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}
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}
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delete [] pnr.data;
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delete [] ar.data;
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delete [] br.data;
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delete [] sr.data;
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delete [] dr.data;
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delete [] inr.data;
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delete [] cnr.data;
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return buffer;
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}
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bool AetherLevelSource::hasChunk(int x, int y)
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{
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return true;
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}
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// 4J - recalcHeightmap split out from getChunk so that it runs after the chunk is added to the cache.
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// This is required for skylight to be calculated correctly — lightGaps() needs the chunk to pass hasChunk().
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void AetherLevelSource::lightChunk(LevelChunk *lc)
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{
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lc->recalcHeightmap();
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}
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void AetherLevelSource::postProcess(ChunkSource *parent, int xt, int zt)
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{
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HeavyTile::instaFall = true;
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int xo = xt * 16;
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int zo = zt * 16;
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pprandom->setSeed(level->getSeed());
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__int64 xScale = pprandom->nextLong() / 2 * 2 + 1;
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__int64 zScale = pprandom->nextLong() / 2 * 2 + 1;
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pprandom->setSeed(((xt * xScale) + (zt * zScale)) ^ level->getSeed());
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Biome *biome = level->getBiome(xo + 16, zo + 16);
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biome->decorate(level, pprandom, xo, zo);
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HeavyTile::instaFall = false;
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app.processSchematics(parent->getChunk(xt, zt));
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}
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bool AetherLevelSource::save(bool force, ProgressListener *progressListener)
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{
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return true;
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}
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bool AetherLevelSource::tick()
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{
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return false;
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}
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bool AetherLevelSource::shouldSave()
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{
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return true;
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}
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wstring AetherLevelSource::gatherStats()
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{
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return L"AetherLevelSource";
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}
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vector<Biome::MobSpawnerData *> *AetherLevelSource::getMobsAt(MobCategory *mobCategory, int x, int y, int z)
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{
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Biome *biome = level->getBiome(x, z);
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if (biome == NULL)
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{
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return NULL;
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}
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return biome->getMobs(mobCategory);
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}
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TilePos *AetherLevelSource::findNearestMapFeature(Level *level, const wstring& featureName, int x, int y, int z)
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{
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return NULL;
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}
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