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Added Chunk#getLastChangeTime
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02eab844a5
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@ -191,6 +191,17 @@ public abstract class Chunk implements Viewable, DataContainer {
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@NotNull
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public abstract Set<Integer> getBlockEntities();
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/**
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* Gets the last time that this chunk changed.
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* <p>
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* "Change" means here data used in {@link ChunkDataPacket}.
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* It is necessary to see if the cached version of this chunk can be used
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* instead of re writing and compressing everything.
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*
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* @return the last change time in milliseconds
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*/
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public abstract long getLastChangeTime();
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/**
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* Serializes the chunk into bytes.
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*
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@ -57,6 +57,8 @@ public class DynamicChunk extends Chunk {
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// Block entities
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protected final Set<Integer> blockEntities = new CopyOnWriteArraySet<>();
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private long lastChangeTime;
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public DynamicChunk(@Nullable Biome[] biomes, int chunkX, int chunkZ,
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@NotNull PaletteStorage blockPalette, @NotNull PaletteStorage customBlockPalette) {
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super(biomes, chunkX, chunkZ, true);
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@ -86,8 +88,8 @@ public class DynamicChunk extends Chunk {
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// True if the block is not complete air without any custom block capabilities
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final boolean hasBlock = blockStateId != 0 || customBlockId != 0;
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this.blockPalette.setBlockAt(x, y, z, blockStateId);
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this.customBlockPalette.setBlockAt(x, y, z, customBlockId);
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setBlockAt(blockPalette, x, y, z, blockStateId);
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setBlockAt(customBlockPalette, x, y, z, customBlockId);
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if (!hasBlock) {
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// Block has been deleted, clear cache and return
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@ -155,23 +157,23 @@ public class DynamicChunk extends Chunk {
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@Override
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public short getBlockStateId(int x, int y, int z) {
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return this.blockPalette.getBlockAt(x, y, z);
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return getBlockAt(blockPalette, x, y, z);
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}
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@Override
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public short getCustomBlockId(int x, int y, int z) {
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return customBlockPalette.getBlockAt(x, y, z);
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return getBlockAt(customBlockPalette, x, y, z);
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}
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@Override
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protected void refreshBlockValue(int x, int y, int z, short blockStateId, short customBlockId) {
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this.blockPalette.setBlockAt(x, y, z, blockStateId);
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this.customBlockPalette.setBlockAt(x, y, z, customBlockId);
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setBlockAt(blockPalette, x, y, z, blockStateId);
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setBlockAt(customBlockPalette, x, y, z, customBlockId);
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}
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@Override
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protected void refreshBlockStateId(int x, int y, int z, short blockStateId) {
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this.blockPalette.setBlockAt(x, y, z, blockStateId);
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setBlockAt(blockPalette, x, y, z, blockStateId);
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}
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@Override
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@ -195,6 +197,11 @@ public class DynamicChunk extends Chunk {
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return blockEntities;
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}
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@Override
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public long getLastChangeTime() {
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return lastChangeTime;
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}
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/**
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* Serialize this {@link Chunk} based on {@link #readChunk(BinaryReader, ChunkCallback)}
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* <p>
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@ -242,8 +249,8 @@ public class DynamicChunk extends Chunk {
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for (byte z = 0; z < CHUNK_SIZE_Z; z++) {
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final int index = getBlockIndex(x, y, z);
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final short blockStateId = blockPalette.getBlockAt(x, y, z);
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final short customBlockId = customBlockPalette.getBlockAt(x, y, z);
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final short blockStateId = getBlockAt(blockPalette, x, y, z);
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final short customBlockId = getBlockAt(customBlockPalette, x, y, z);
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// No block at the position
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if (blockStateId == 0 && customBlockId == 0)
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@ -400,4 +407,13 @@ public class DynamicChunk extends Chunk {
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return dynamicChunk;
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}
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private short getBlockAt(@NotNull PaletteStorage paletteStorage, int x, int y, int z) {
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return paletteStorage.getBlockAt(x, y, z);
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}
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private void setBlockAt(@NotNull PaletteStorage paletteStorage, int x, int y, int z, short blockId) {
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paletteStorage.setBlockAt(x, y, z, blockId);
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this.lastChangeTime = System.currentTimeMillis();
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}
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}
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