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optimize chunk packer with extended block storage

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This commit is contained in:
Leijurv 2018-09-04 15:18:51 -07:00
parent 8c9bb85d4b
commit e7d41ba4fc
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GPG Key ID: 44A3EA646EADAC6A
2 changed files with 55 additions and 13 deletions
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63
src/main/java/baritone/chunk/ChunkPacker.java
View File

@ -28,7 +28,9 @@ import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.chunk.BlockStateContainer;
import net.minecraft.world.chunk.Chunk;
import net.minecraft.world.chunk.storage.ExtendedBlockStorage;
import java.util.*;
@ -40,28 +42,65 @@ public final class ChunkPacker implements Helper {
private ChunkPacker() {}
private static BitSet originalPacker(Chunk chunk) {
BitSet bitSet = new BitSet(CachedChunk.SIZE);
for (int y = 0; y < 256; y++) {
for (int z = 0; z < 16; z++) {
for (int x = 0; x < 16; x++) {
int index = CachedChunk.getPositionIndex(x, y, z);
IBlockState state = chunk.getBlockState(x, y, z);
boolean[] bits = getPathingBlockType(state).getBits();
bitSet.set(index, bits[0]);
bitSet.set(index + 1, bits[1]);
}
}
}
return bitSet;
}
public static CachedChunk pack(Chunk chunk) {
long start = System.nanoTime() / 1000000L;
Map<String, List<BlockPos>> specialBlocks = new HashMap<>();
BitSet bitSet = new BitSet(CachedChunk.SIZE);
try {
for (int y = 0; y < 256; y++) {
for (int z = 0; z < 16; z++) {
for (int x = 0; x < 16; x++) {
int index = CachedChunk.getPositionIndex(x, y, z);
IBlockState state = chunk.getBlockState(x, y, z);
boolean[] bits = getPathingBlockType(state).getBits();
bitSet.set(index, bits[0]);
bitSet.set(index + 1, bits[1]);
Block block = state.getBlock();
if (CachedChunk.BLOCKS_TO_KEEP_TRACK_OF.contains(block)) {
String name = blockToString(block);
specialBlocks.computeIfAbsent(name, b -> new ArrayList<>()).add(new BlockPos(x, y, z));
ExtendedBlockStorage[] chunkInternalStorageArray = chunk.getBlockStorageArray();
for (int y0 = 0; y0 < 16; y0++) {
ExtendedBlockStorage extendedblockstorage = chunkInternalStorageArray[y0];
if (extendedblockstorage == null) {
// any 16x16x16 area that's all air will have null storage
// for example, in an ocean biome, with air from y=64 to y=256
// the first 4 extended blocks storages will be full
// and the remaining 12 will be null
// since the index into the bitset is calculated from the x y and z
// and doesn't function as an append, we can entirely skip the scanning
// since a bitset is initialized to all zero, and air is saved as zeros
continue;
}
BlockStateContainer bsc = extendedblockstorage.getData();
int yReal = y0 << 4;
for (int x = 0; x < 16; x++) {
for (int y1 = 0; y1 < 16; y1++) {
for (int z = 0; z < 16; z++) {
int y = y1 | yReal;
int index = CachedChunk.getPositionIndex(x, y, z);
IBlockState state = bsc.get(x, y1, z);
boolean[] bits = getPathingBlockType(state).getBits();
bitSet.set(index, bits[0]);
bitSet.set(index + 1, bits[1]);
Block block = state.getBlock();
if (CachedChunk.BLOCKS_TO_KEEP_TRACK_OF.contains(block)) {
String name = blockToString(block);
specialBlocks.computeIfAbsent(name, b -> new ArrayList<>()).add(new BlockPos(x, y, z));
}
}
}
}
}
/*if (!bitSet.equals(originalPacker(chunk))) {
throw new IllegalStateException();
}*/
} catch (Exception e) {
e.printStackTrace();
}

5
src/main/java/baritone/chunk/WorldScanner.java
View File

@ -64,18 +64,21 @@ public enum WorldScanner implements Helper {
}
allUnloaded = false;
ExtendedBlockStorage[] chunkInternalStorageArray = chunk.getBlockStorageArray();
chunkX = chunkX << 4;
chunkZ = chunkZ << 4;
for (int y0 = 0; y0 < 16; y0++) {
ExtendedBlockStorage extendedblockstorage = chunkInternalStorageArray[y0];
if (extendedblockstorage == null) {
continue;
}
int yReal = y0 << 4;
BlockStateContainer bsc = extendedblockstorage.getData();
for (int x = 0; x < 16; x++) {
for (int y = 0; y < 16; y++) {
for (int z = 0; z < 16; z++) {
IBlockState state = bsc.get(x, y, z);
if (asBlocks.contains(state.getBlock())) {
res.add(new BlockPos(chunkX * 16 + x, y0 * 16 + y, chunkZ * 16 + z));
res.add(new BlockPos(chunkX | x, yReal | y, chunkZ | z));
}
}
}