mirror of https://github.com/webbukkit/dynmap.git
318 lines
12 KiB
Java
318 lines
12 KiB
Java
package org.dynmap.forge_1_18;
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import java.lang.reflect.Field;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.ListIterator;
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import org.dynmap.DynmapChunk;
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import org.dynmap.DynmapCore;
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import org.dynmap.DynmapWorld;
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import org.dynmap.Log;
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import org.dynmap.common.BiomeMap;
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import org.dynmap.common.chunk.GenericChunk;
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import org.dynmap.common.chunk.GenericChunkCache;
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import org.dynmap.common.chunk.GenericChunkSection;
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import org.dynmap.common.chunk.GenericMapChunkCache;
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import org.dynmap.hdmap.HDBlockModels;
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import org.dynmap.renderer.DynmapBlockState;
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import org.dynmap.renderer.RenderPatchFactory;
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import org.dynmap.utils.DynIntHashMap;
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import org.dynmap.utils.MapChunkCache;
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import org.dynmap.utils.MapIterator;
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import org.dynmap.utils.BlockStep;
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import org.dynmap.utils.DataBitsPacked;
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import org.dynmap.utils.VisibilityLimit;
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import net.minecraft.util.BitStorage;
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import net.minecraft.util.SimpleBitStorage;
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import net.minecraft.nbt.ByteArrayTag;
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import net.minecraft.nbt.ByteTag;
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import net.minecraft.nbt.CompoundTag;
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import net.minecraft.nbt.DoubleTag;
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import net.minecraft.nbt.FloatTag;
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import net.minecraft.nbt.IntArrayTag;
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import net.minecraft.nbt.IntTag;
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import net.minecraft.nbt.ListTag;
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import net.minecraft.nbt.LongTag;
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import net.minecraft.nbt.ShortTag;
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import net.minecraft.nbt.StringTag;
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import net.minecraft.nbt.Tag;
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import net.minecraft.server.level.ServerChunkCache;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.world.level.ChunkPos;
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import net.minecraft.world.level.biome.Biome;
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import net.minecraft.world.level.chunk.ChunkAccess;
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import net.minecraft.world.level.chunk.ChunkStatus;
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import net.minecraft.world.level.chunk.storage.ChunkSerializer;
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/**
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* Container for managing chunks - dependent upon using chunk snapshots, since
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* rendering is off server thread
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*/
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public class ForgeMapChunkCache extends GenericMapChunkCache {
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private ServerLevel w;
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private ServerChunkCache cps;
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/**
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* Construct empty cache
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*/
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public ForgeMapChunkCache(GenericChunkCache cc) {
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super(cc);
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init();
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}
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private GenericChunk parseChunkFromNBT(CompoundTag nbt) {
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if ((nbt != null) && nbt.contains("Level")) {
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nbt = nbt.getCompound("Level");
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}
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if (nbt == null) return null;
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// Start generic chunk builder
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GenericChunk.Builder bld = new GenericChunk.Builder(dw.minY, dw.worldheight);
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bld.coords(nbt.getInt("xPos"), nbt.getInt("zPos"));
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if (nbt.contains("InhabitedTime")) {
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bld.inhabitedTicks(nbt.getLong("InhabitedTime"));
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}
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// Check for 2D or old 3D biome data from chunk level: need these when we build old sections
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List<BiomeMap[]> old3d = null; // By section, then YZX list
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BiomeMap[] old2d = null;
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if (nbt.contains("Biomes")) {
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int[] bb = nbt.getIntArray("Biomes");
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if (bb != null) {
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// If v1.15+ format
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if (bb.length > 256) {
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old3d = new ArrayList<BiomeMap[]>();
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// Get 4 x 4 x 4 list for each section
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for (int sect = 0; sect < (bb.length / 64); sect++) {
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BiomeMap smap[] = new BiomeMap[64];
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for (int i = 0; i < 64; i++) {
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smap[i] = BiomeMap.byBiomeID(bb[sect*64 + i]);
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}
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old3d.add(smap);
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}
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}
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else { // Else, older chunks
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old2d = new BiomeMap[256];
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for (int i = 0; i < bb.length; i++) {
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old2d[i] = BiomeMap.byBiomeID(bb[i]);
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}
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}
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}
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}
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// Start section builder
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GenericChunkSection.Builder sbld = new GenericChunkSection.Builder();
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/* Get sections */
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ListTag sect = nbt.contains("sections") ? nbt.getList("sections", 10) : nbt.getList("Sections", 10);
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for (int i = 0; i < sect.size(); i++) {
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CompoundTag sec = sect.getCompound(i);
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int secnum = sec.getByte("Y");
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DynmapBlockState[] palette = null;
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// If we've got palette and block states list, process non-empty section
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if (sec.contains("Palette", 9) && sec.contains("BlockStates", 12)) {
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ListTag plist = sec.getList("Palette", 10);
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long[] statelist = sec.getLongArray("BlockStates");
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palette = new DynmapBlockState[plist.size()];
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for (int pi = 0; pi < plist.size(); pi++) {
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CompoundTag tc = plist.getCompound(pi);
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String pname = tc.getString("Name");
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if (tc.contains("Properties")) {
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StringBuilder statestr = new StringBuilder();
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CompoundTag prop = tc.getCompound("Properties");
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for (String pid : prop.getAllKeys()) {
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if (statestr.length() > 0) statestr.append(',');
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statestr.append(pid).append('=').append(prop.get(pid).getAsString());
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}
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palette[pi] = DynmapBlockState.getStateByNameAndState(pname, statestr.toString());
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}
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if (palette[pi] == null) {
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palette[pi] = DynmapBlockState.getBaseStateByName(pname);
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}
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if (palette[pi] == null) {
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palette[pi] = DynmapBlockState.AIR;
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}
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}
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int recsperblock = (4096 + statelist.length - 1) / statelist.length;
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int bitsperblock = 64 / recsperblock;
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BitStorage db = null;
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DataBitsPacked dbp = null;
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try {
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db = new SimpleBitStorage(bitsperblock, 4096, statelist);
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} catch (Exception x) { // Handle legacy encoded
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bitsperblock = (statelist.length * 64) / 4096;
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dbp = new DataBitsPacked(bitsperblock, 4096, statelist);
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}
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if (bitsperblock > 8) { // Not palette
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for (int j = 0; j < 4096; j++) {
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int v = (dbp != null) ? dbp.getAt(j) : db.get(j);
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sbld.xyzBlockState(j & 0xF, (j & 0xF00) >> 8, (j & 0xF0) >> 4, DynmapBlockState.getStateByGlobalIndex(v));
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}
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}
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else {
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for (int j = 0; j < 4096; j++) {
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int v = (dbp != null) ? dbp.getAt(j) : db.get(j);
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DynmapBlockState bs = (v < palette.length) ? palette[v] : DynmapBlockState.AIR;
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sbld.xyzBlockState(j & 0xF, (j & 0xF00) >> 8, (j & 0xF0) >> 4, bs);
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}
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}
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}
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else if (sec.contains("block_states")) { // 1.18
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CompoundTag block_states = sec.getCompound("block_states");
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// If we've block state data, process non-empty section
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if (block_states.contains("data", 12)) {
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long[] statelist = block_states.getLongArray("data");
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ListTag plist = block_states.getList("palette", 10);
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palette = new DynmapBlockState[plist.size()];
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for (int pi = 0; pi < plist.size(); pi++) {
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CompoundTag tc = plist.getCompound(pi);
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String pname = tc.getString("Name");
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if (tc.contains("Properties")) {
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StringBuilder statestr = new StringBuilder();
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CompoundTag prop = tc.getCompound("Properties");
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for (String pid : prop.getAllKeys()) {
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if (statestr.length() > 0) statestr.append(',');
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statestr.append(pid).append('=').append(prop.get(pid).getAsString());
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}
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palette[pi] = DynmapBlockState.getStateByNameAndState(pname, statestr.toString());
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}
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if (palette[pi] == null) {
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palette[pi] = DynmapBlockState.getBaseStateByName(pname);
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}
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if (palette[pi] == null) {
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palette[pi] = DynmapBlockState.AIR;
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}
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}
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SimpleBitStorage db = null;
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DataBitsPacked dbp = null;
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int bitsperblock = (statelist.length * 64) / 4096;
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int expectedStatelistLength = (4096 + (64 / bitsperblock) - 1) / (64 / bitsperblock);
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if (statelist.length == expectedStatelistLength) {
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db = new SimpleBitStorage(bitsperblock, 4096, statelist);
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}
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else {
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bitsperblock = (statelist.length * 64) / 4096;
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dbp = new DataBitsPacked(bitsperblock, 4096, statelist);
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}
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if (bitsperblock > 8) { // Not palette
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for (int j = 0; j < 4096; j++) {
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int v = db != null ? db.get(j) : dbp.getAt(j);
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sbld.xyzBlockState(j & 0xF, (j & 0xF00) >> 8, (j & 0xF0) >> 4, DynmapBlockState.getStateByGlobalIndex(v));
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}
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}
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else {
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for (int j = 0; j < 4096; j++) {
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int v = db != null ? db.get(j) : dbp.getAt(j);
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DynmapBlockState bs = (v < palette.length) ? palette[v] : DynmapBlockState.AIR;
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sbld.xyzBlockState(j & 0xF, (j & 0xF00) >> 8, (j & 0xF0) >> 4, bs);
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}
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}
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}
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}
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if (sec.contains("BlockLight")) {
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sbld.emittedLight(sec.getByteArray("BlockLight"));
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}
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if (sec.contains("SkyLight")) {
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sbld.skyLight(sec.getByteArray("SkyLight"));
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}
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// If section biome palette
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if (sec.contains("biomes")) {
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CompoundTag nbtbiomes = sec.getCompound("biomes");
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long[] bdataPacked = nbtbiomes.getLongArray("data");
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ListTag bpalette = nbtbiomes.getList("palette", 8);
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SimpleBitStorage bdata = null;
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if (bdataPacked.length > 0)
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bdata = new SimpleBitStorage(bdataPacked.length, 64, bdataPacked);
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for (int j = 0; j < 64; j++) {
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int b = bdata != null ? bdata.get(j) : 0;
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sbld.xyzBiome(j & 0x3, (j & 0x30) >> 4, (j & 0xC) >> 2, BiomeMap.byBiomeResourceLocation(bpalette.getString(b)));
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}
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}
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else { // Else, apply legacy biomes
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if (old3d != null) {
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BiomeMap m[] = old3d.get((secnum > 0) ? ((secnum < old3d.size()) ? secnum : old3d.size()-1) : 0);
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if (m != null) {
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for (int j = 0; j < 64; j++) {
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sbld.xyzBiome(j & 0x3, (j & 0x30) >> 4, (j & 0xC) >> 2, m[j]);
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}
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}
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}
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else if (old2d != null) {
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for (int j = 0; j < 256; j++) {
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sbld.xzBiome(j & 0xF, (j & 0xF0) >> 4, old2d[j]);
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}
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}
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}
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// Finish and add section
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bld.addSection(secnum, sbld.build());
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sbld.reset();
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}
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return bld.build();
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}
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// Load generic chunk from existing and already loaded chunk
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protected GenericChunk getLoadedChunk(DynmapChunk chunk) {
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GenericChunk gc = null;
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ChunkAccess ch = cps.getChunk(chunk.x, chunk.z, ChunkStatus.FULL, false);
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if (ch != null) {
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CompoundTag nbt = ChunkSerializer.write(w, ch);
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if ((nbt != null) && nbt.contains("Level")) {
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nbt = nbt.getCompound("Level");
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}
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if (nbt != null) {
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gc = parseChunkFromNBT(nbt);
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}
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}
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return gc;
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}
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// Load generic chunk from unloaded chunk
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protected GenericChunk loadChunk(DynmapChunk chunk) {
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GenericChunk gc = null;
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CompoundTag nbt = readChunk(chunk.x, chunk.z);
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// If read was good
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if (nbt != null) {
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if ((nbt != null) && nbt.contains("Level")) {
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nbt = nbt.getCompound("Level");
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}
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if (nbt != null) {
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gc = parseChunkFromNBT(nbt);
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}
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}
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return gc;
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}
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public void setChunks(ForgeWorld dw, List<DynmapChunk> chunks) {
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this.w = dw.getWorld();
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if (dw.isLoaded()) {
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/* Check if world's provider is ServerChunkProvider */
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cps = this.w.getChunkSource();
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}
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super.setChunks(dw, chunks);
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}
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private CompoundTag readChunk(int x, int z) {
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try {
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CompoundTag rslt = cps.chunkMap.readChunk(new ChunkPos(x, z));
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if (rslt != null) {
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if (rslt.contains("Level")) {
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rslt = rslt.getCompound("Level");
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}
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// Don't load uncooked chunks
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String stat = rslt.getString("Status");
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ChunkStatus cs = ChunkStatus.byName(stat);
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if ((stat == null) ||
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// Needs to be at least lighted
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(!cs.isOrAfter(ChunkStatus.LIGHT))) {
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rslt = null;
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}
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}
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// Log.info(String.format("loadChunk(%d,%d)=%s", x, z, (rslt != null) ?
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// rslt.toString() : "null"));
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return rslt;
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} catch (Exception exc) {
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Log.severe(String.format("Error reading chunk: %s,%d,%d", dw.getName(), x, z), exc);
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return null;
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}
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}
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}
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