MinecraftMods/BetterEnd
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Portals as structure feature

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This commit is contained in:
paulevsGitch 2020-11-02 15:05:26 +03:00
parent 97eacdff1c
commit 40f8342732
7 changed files with 190 additions and 84 deletions
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123
src/main/java/ru/betterend/util/StructureHelper.java
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@ -1,74 +1,73 @@
package ru.betterend.util;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.io.IOException;
import java.io.InputStream;
import java.util.Random;
import net.minecraft.server.world.ServerWorld;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.nbt.NbtIo;
import net.minecraft.server.MinecraftServer;
import net.minecraft.structure.Structure;
import net.minecraft.structure.StructurePlacementData;
import net.minecraft.util.BlockMirror;
import net.minecraft.util.BlockRotation;
import net.minecraft.util.Identifier;
import net.minecraft.util.math.BlockBox;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.ChunkPos;
import net.minecraft.world.Heightmap;
import net.minecraft.world.gen.ChunkRandom;
import net.minecraft.world.gen.chunk.ChunkGenerator;
import net.minecraft.world.gen.chunk.StructureConfig;
import net.minecraft.world.gen.feature.StructureFeature;
import net.minecraft.world.StructureWorldAccess;
public class StructureHelper {
private static final Set<ChunkPos> POSITIONS = new HashSet<ChunkPos>(64);
public static Structure readStructure(Identifier resource) {
String ns = resource.getNamespace();
String nm = resource.getPath();
private static void collectNearby(ServerWorld world, StructureFeature<?> feature, int chunkX, int chunkZ, int radius, StructureConfig config, long worldSeed, ChunkRandom chunkRandom) {
int x1 = chunkX - radius;
int x2 = chunkX + radius;
int z1 = chunkZ - radius;
int z2 = chunkZ + radius;
POSITIONS.clear();
ChunkGenerator generator = world.getChunkManager().getChunkGenerator();
for (int x = x1; x <= x2; x += 8) {
for (int z = z1; z <= z2; z += 8) {
ChunkPos chunk = feature.getStartChunk(config, worldSeed, chunkRandom, x, z);
if (world.getBiome(chunk.getStartPos()).getGenerationSettings().hasStructureFeature(feature))
{
if (feature.getName().equals("endcity")) {
if (generator.getHeight((x << 16) | 8, (z << 16) | 8, Heightmap.Type.WORLD_SURFACE_WG) > 60) {
POSITIONS.add(chunk);
}
}
else {
POSITIONS.add(chunk);
}
}
}
try {
InputStream inputstream = MinecraftServer.class.getResourceAsStream("/data/" + ns + "/structures/" + nm + ".nbt");
return readStructureFromStream(inputstream);
}
}
private static long sqr(int x) {
return (long) x * (long) x;
}
public static BlockPos getNearestStructure(StructureFeature<?> feature, ServerWorld world, BlockPos pos, int radius) {
int cx = pos.getX() >> 4;
int cz = pos.getZ() >> 4;
StructureConfig config = world.getChunkManager().getChunkGenerator().getStructuresConfig().getForType(feature);
if (config == null)
return null;
collectNearby(world, feature, cx, cz, radius, config, world.getSeed(), new ChunkRandom());
Iterator<ChunkPos> iterator = POSITIONS.iterator();
if (iterator.hasNext()) {
ChunkPos nearest = POSITIONS.iterator().next();
long d = sqr(nearest.x - cx) + sqr(nearest.z - cz);
while (iterator.hasNext()) {
ChunkPos n = iterator.next();
long d2 = sqr(n.x - cx) + sqr(n.z - cz);
if (d2 < d) {
d = d2;
nearest = n;
}
}
return nearest.getStartPos();
catch (IOException e) {
e.printStackTrace();
}
return null;
}
private static Structure readStructureFromStream(InputStream stream) throws IOException {
CompoundTag nbttagcompound = NbtIo.readCompressed(stream);
Structure template = new Structure();
template.fromTag(nbttagcompound);
return template;
}
public static BlockPos offsetPos(BlockPos pos, Structure structure, BlockRotation rotation, BlockMirror mirror) {
BlockPos offset = Structure.transformAround(structure.getSize(), mirror, rotation, BlockPos.ORIGIN);
return pos.add(-offset.getX() * 0.5, 0, -offset.getZ() * 0.5);
}
public static void placeCenteredBottom(StructureWorldAccess world, BlockPos pos, Structure structure, BlockRotation rotation, BlockMirror mirror, Random random) {
placeCenteredBottom(world, pos, structure, rotation, mirror, makeBox(pos), random);
}
public static void placeCenteredBottom(StructureWorldAccess world, BlockPos pos, Structure structure, BlockRotation rotation, BlockMirror mirror, BlockBox bounds, Random random) {
BlockPos offset = offsetPos(pos, structure, rotation, mirror);
StructurePlacementData placementData = new StructurePlacementData().setRotation(rotation).setMirror(mirror).setBoundingBox(bounds);
structure.place(world, offset, placementData, random);
}
private static BlockBox makeBox(BlockPos pos) {
int sx = ((pos.getX() >> 4) << 4) - 16;
int sz = ((pos.getZ() >> 4) << 4) - 16;
int ex = sx + 47;
int ez = sz + 47;
return BlockBox.create(sx, 0, sz, ex, 255, ez);
}
public static BlockBox getStructureBounds(BlockPos pos, Structure structure, BlockRotation rotation, BlockMirror mirror) {
BlockPos max = structure.getSize();
BlockPos min = Structure.transformAround(structure.getSize(), mirror, rotation, BlockPos.ORIGIN);
max = max.subtract(min);
return new BlockBox(min.add(pos), max.add(pos));
}
}