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Merge pull request #55 from Querz/little-endian-io
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Little endian io
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@Querz
Querz committed Jan 11, 2021
2 parents 02ca3e6 + d985c46 commit ae1f2ba
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Showing 15 changed files with 726 additions and 66 deletions.
2 changes: 1 addition & 1 deletion build.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ apply plugin: 'jacoco'

group = 'net.querz.nbt'
archivesBaseName = 'nbt'
version = '5.5'
version = '6.0'
sourceCompatibility = '1.8'
targetCompatibility = '1.8'
compileJava.options.encoding = 'UTF-8'
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115 changes: 95 additions & 20 deletions src/main/java/net/querz/mca/Chunk.java
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Original file line number Diff line number Diff line change
Expand Up @@ -16,9 +16,10 @@

public class Chunk {

public static final int DEFAULT_DATA_VERSION = 1628;
public static final int DEFAULT_DATA_VERSION = 2567;

private boolean partial;
private boolean raw;

private int lastMCAUpdate;

Expand Down Expand Up @@ -59,6 +60,12 @@ private void initReferences(long loadFlags) {
if (data == null) {
throw new NullPointerException("data cannot be null");
}

if ((loadFlags != ALL_DATA) && (loadFlags & RAW) != 0) {
raw = true;
return;
}

CompoundTag level;
if ((level = data.getCompoundTag("Level")) == null) {
throw new IllegalArgumentException("data does not contain \"Level\" tag");
Expand Down Expand Up @@ -121,8 +128,6 @@ private void initReferences(long loadFlags) {
if (loadFlags != ALL_DATA) {
data = null;
partial = true;
} else {
partial = false;
}
}

Expand Down Expand Up @@ -224,6 +229,7 @@ public int getBiomeAt(int blockX, int blockY, int blockZ) {

@Deprecated
public void setBiomeAt(int blockX, int blockZ, int biomeID) {
checkRaw();
if (dataVersion < 2202) {
if (biomes == null || biomes.length != 256) {
biomes = new int[256];
Expand Down Expand Up @@ -254,6 +260,7 @@ public void setBiomeAt(int blockX, int blockZ, int biomeID) {
* When set to a negative number, Minecraft will replace it with the block column's default biome.
*/
public void setBiomeAt(int blockX, int blockY, int blockZ, int biomeID) {
checkRaw();
if (dataVersion < 2202) {
if (biomes == null || biomes.length != 256) {
biomes = new int[256];
Expand All @@ -274,7 +281,7 @@ public void setBiomeAt(int blockX, int blockY, int blockZ, int biomeID) {
}

int getBiomeIndex(int biomeX, int biomeY, int biomeZ) {
return biomeY * 64 + biomeZ * 4 + biomeX;
return biomeY * 16 + biomeZ * 4 + biomeX;
}

public CompoundTag getBlockStateAt(int blockX, int blockY, int blockZ) {
Expand All @@ -297,6 +304,7 @@ public CompoundTag getBlockStateAt(int blockX, int blockY, int blockZ) {
* Recalculating the Palette should only be executed once right before saving the Chunk to file.
*/
public void setBlockStateAt(int blockX, int blockY, int blockZ, CompoundTag state, boolean cleanup) {
checkRaw();
int sectionIndex = MCAUtil.blockToChunk(blockY);
Section section = sections[sectionIndex];
if (section == null) {
Expand All @@ -318,6 +326,7 @@ public int getDataVersion() {
* @param dataVersion The DataVersion to be set.
*/
public void setDataVersion(int dataVersion) {
checkRaw();
this.dataVersion = dataVersion;
}

Expand All @@ -333,6 +342,7 @@ public int getLastMCAUpdate() {
* @param lastMCAUpdate The time in seconds since 1970-01-01.
*/
public void setLastMCAUpdate(int lastMCAUpdate) {
checkRaw();
this.lastMCAUpdate = lastMCAUpdate;
}

Expand All @@ -348,6 +358,7 @@ public String getStatus() {
* @param status The generation status of this chunk.
*/
public void setStatus(String status) {
checkRaw();
this.status = status;
}

Expand All @@ -366,6 +377,7 @@ public Section getSection(int sectionY) {
* @param section The section to be set.
*/
public void setSection(int sectionY, Section section) {
checkRaw();
sections[sectionY] = section;
}

Expand All @@ -381,6 +393,7 @@ public long getLastUpdate() {
* @param lastUpdate The UNIX timestamp.
*/
public void setLastUpdate(long lastUpdate) {
checkRaw();
this.lastUpdate = lastUpdate;
}

Expand All @@ -396,6 +409,7 @@ public long getInhabitedTime() {
* @param inhabitedTime The time in ticks.
*/
public void setInhabitedTime(long inhabitedTime) {
checkRaw();
this.inhabitedTime = inhabitedTime;
}

Expand All @@ -413,6 +427,7 @@ public int[] getBiomes() {
* or is <code>null</code>
*/
public void setBiomes(int[] biomes) {
checkRaw();
if (biomes != null) {
if (dataVersion < 2202 && biomes.length != 256 || dataVersion >= 2202 && biomes.length != 1024) {
throw new IllegalArgumentException("biomes array must have a length of " + (dataVersion < 2202 ? "256" : "1024"));
Expand All @@ -433,6 +448,7 @@ public CompoundTag getHeightMaps() {
* @param heightMaps The height maps.
*/
public void setHeightMaps(CompoundTag heightMaps) {
checkRaw();
this.heightMaps = heightMaps;
}

Expand All @@ -448,6 +464,7 @@ public CompoundTag getCarvingMasks() {
* @param carvingMasks The carving masks.
*/
public void setCarvingMasks(CompoundTag carvingMasks) {
checkRaw();
this.carvingMasks = carvingMasks;
}

Expand All @@ -463,6 +480,7 @@ public ListTag<CompoundTag> getEntities() {
* @param entities The entities.
*/
public void setEntities(ListTag<CompoundTag> entities) {
checkRaw();
this.entities = entities;
}

Expand All @@ -478,6 +496,7 @@ public ListTag<CompoundTag> getTileEntities() {
* @param tileEntities The tile entities of this chunk.
*/
public void setTileEntities(ListTag<CompoundTag> tileEntities) {
checkRaw();
this.tileEntities = tileEntities;
}

Expand All @@ -493,6 +512,7 @@ public ListTag<CompoundTag> getTileTicks() {
* @param tileTicks Thee tile ticks.
*/
public void setTileTicks(ListTag<CompoundTag> tileTicks) {
checkRaw();
this.tileTicks = tileTicks;
}

Expand All @@ -508,6 +528,7 @@ public ListTag<CompoundTag> getLiquidTicks() {
* @param liquidTicks The liquid ticks.
*/
public void setLiquidTicks(ListTag<CompoundTag> liquidTicks) {
checkRaw();
this.liquidTicks = liquidTicks;
}

Expand All @@ -523,11 +544,12 @@ public ListTag<ListTag<?>> getLights() {
* @param lights The light sources.
*/
public void setLights(ListTag<ListTag<?>> lights) {
checkRaw();
this.lights = lights;
}

/**
* @return THe liquids to be ticked in this chunk.
* @return The liquids to be ticked in this chunk.
*/
public ListTag<ListTag<?>> getLiquidsToBeTicked() {
return liquidsToBeTicked;
Expand All @@ -538,6 +560,7 @@ public ListTag<ListTag<?>> getLiquidsToBeTicked() {
* @param liquidsToBeTicked The liquids to be ticked.
*/
public void setLiquidsToBeTicked(ListTag<ListTag<?>> liquidsToBeTicked) {
checkRaw();
this.liquidsToBeTicked = liquidsToBeTicked;
}

Expand All @@ -553,6 +576,7 @@ public ListTag<ListTag<?>> getToBeTicked() {
* @param toBeTicked The stuff to be ticked.
*/
public void setToBeTicked(ListTag<ListTag<?>> toBeTicked) {
checkRaw();
this.toBeTicked = toBeTicked;
}

Expand All @@ -568,6 +592,7 @@ public ListTag<ListTag<?>> getPostProcessing() {
* @param postProcessing The things to be post processed.
*/
public void setPostProcessing(ListTag<ListTag<?>> postProcessing) {
checkRaw();
this.postProcessing = postProcessing;
}

Expand All @@ -583,6 +608,7 @@ public CompoundTag getStructures() {
* @param structures The data about structures.
*/
public void setStructures(CompoundTag structures) {
checkRaw();
this.structures = structures;
}

Expand All @@ -591,46 +617,95 @@ int getBlockIndex(int blockX, int blockZ) {
}

public void cleanupPalettesAndBlockStates() {
checkRaw();
for (Section section : sections) {
if (section != null) {
section.cleanupPaletteAndBlockStates();
}
}
}

private void checkRaw() {
if (raw) {
throw new UnsupportedOperationException("cannot update field when working with raw data");
}
}

public static Chunk newChunk() {
return newChunk(DEFAULT_DATA_VERSION);
}

public static Chunk newChunk(int dataVersion) {
Chunk c = new Chunk(0);
c.dataVersion = DEFAULT_DATA_VERSION;
c.dataVersion = dataVersion;
c.data = new CompoundTag();
c.data.put("Level", new CompoundTag());
c.status = "mobs_spawned";
return c;
}

/**
* Provides a reference to the full chunk data.
* @return The full chunk data or null if there is none, e.g. when this chunk has only been loaded partially.
*/
public CompoundTag getHandle() {
return data;
}

public CompoundTag updateHandle(int xPos, int zPos) {
if (raw) {
return data;
}

data.putInt("DataVersion", dataVersion);
CompoundTag level = data.getCompoundTag("Level");
level.putInt("xPos", xPos);
level.putInt("zPos", zPos);
level.putLong("LastUpdate", lastUpdate);
level.putLong("InhabitedTime", inhabitedTime);
if (dataVersion < 2202) {
if (biomes != null && biomes.length == 256) level.putIntArray("Biomes", biomes);
if (biomes != null && biomes.length == 256) {
level.putIntArray("Biomes", biomes);
}
} else {
if (biomes != null && biomes.length == 1024) level.putIntArray("Biomes", biomes);
}
if (heightMaps != null) level.put("Heightmaps", heightMaps);
if (carvingMasks != null) level.put("CarvingMasks", carvingMasks);
if (entities != null) level.put("Entities", entities);
if (tileEntities != null) level.put("TileEntities", tileEntities);
if (tileTicks != null) level.put("TileTicks", tileTicks);
if (liquidTicks != null) level.put("LiquidTicks", liquidTicks);
if (lights != null) level.put("Lights", lights);
if (liquidsToBeTicked != null) level.put("LiquidsToBeTicked", liquidsToBeTicked);
if (toBeTicked != null) level.put("ToBeTicked", toBeTicked);
if (postProcessing != null) level.put("PostProcessing", postProcessing);
if (biomes != null && biomes.length == 1024) {
level.putIntArray("Biomes", biomes);
}
}
if (heightMaps != null) {
level.put("Heightmaps", heightMaps);
}
if (carvingMasks != null) {
level.put("CarvingMasks", carvingMasks);
}
if (entities != null) {
level.put("Entities", entities);
}
if (tileEntities != null) {
level.put("TileEntities", tileEntities);
}
if (tileTicks != null) {
level.put("TileTicks", tileTicks);
}
if (liquidTicks != null) {
level.put("LiquidTicks", liquidTicks);
}
if (lights != null) {
level.put("Lights", lights);
}
if (liquidsToBeTicked != null) {
level.put("LiquidsToBeTicked", liquidsToBeTicked);
}
if (toBeTicked != null) {
level.put("ToBeTicked", toBeTicked);
}
if (postProcessing != null) {
level.put("PostProcessing", postProcessing);
}
level.putString("Status", status);
if (structures != null) level.put("Structures", structures);
if (structures != null) {
level.put("Structures", structures);
}
ListTag<CompoundTag> sections = new ListTag<>(CompoundTag.class);
for (int i = 0; i < this.sections.length; i++) {
if (this.sections[i] != null) {
Expand Down
37 changes: 18 additions & 19 deletions src/main/java/net/querz/mca/LoadFlags.java
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Original file line number Diff line number Diff line change
@@ -1,24 +1,23 @@
package net.querz.mca;

public class LoadFlags {

public static long BIOMES = 0x0001;
public static long HEIGHTMAPS = 0x0002;
public static long CARVING_MASKS = 0x0004;
public static long ENTITIES = 0x0008;
public static long TILE_ENTITIES = 0x0010;
public static long TILE_TICKS = 0x0040;
public static long LIQUID_TICKS = 0x0080;
public static long TO_BE_TICKED = 0x0100;
public static long POST_PROCESSING = 0x0200;
public static long STRUCTURES = 0x0400;
public static long BLOCK_LIGHTS = 0x0800;
public static long BLOCK_STATES = 0x1000;
public static long SKY_LIGHT = 0x2000;
public static long LIGHTS = 0x4000;
public static long LIQUIDS_TO_BE_TICKED = 0x8000;

public static long ALL_DATA = 0xffffffffffffffffL;
public final class LoadFlags {

public static final long BIOMES = 0x00001;
public static final long HEIGHTMAPS = 0x00002;
public static final long CARVING_MASKS = 0x00004;
public static final long ENTITIES = 0x00008;
public static final long TILE_ENTITIES = 0x00010;
public static final long TILE_TICKS = 0x00040;
public static final long LIQUID_TICKS = 0x00080;
public static final long TO_BE_TICKED = 0x00100;
public static final long POST_PROCESSING = 0x00200;
public static final long STRUCTURES = 0x00400;
public static final long BLOCK_LIGHTS = 0x00800;
public static final long BLOCK_STATES = 0x01000;
public static final long SKY_LIGHT = 0x02000;
public static final long LIGHTS = 0x04000;
public static final long LIQUIDS_TO_BE_TICKED = 0x08000;
public static final long RAW = 0x10000;

public static final long ALL_DATA = 0xffffffffffffffffL;
}

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