Reimplement Linear region file format support

Author: TBlueF

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/mca/MCAWorld.java

@@ -53,7 +53,7 @@ public class MCAWorld implements World {
     private final Path dimensionFolder;
     private final Path regionFolder;
 
-    private final ChunkLoader chunkLoader = new ChunkLoader();
+    private final ChunkLoader chunkLoader = new ChunkLoader(this);
     private final LoadingCache<Vector2i, Region> regionCache = Caffeine.newBuilder()
             .executor(BlueMap.THREAD_POOL)
             .maximumSize(64)

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/mca/chunk/ChunkLoader.java

@@ -2,7 +2,7 @@
 
 import de.bluecolored.bluemap.core.storage.Compression;
 import de.bluecolored.bluemap.core.world.mca.MCAUtil;
-import de.bluecolored.bluemap.core.world.mca.region.MCARegion;
+import de.bluecolored.bluemap.core.world.mca.MCAWorld;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import org.jetbrains.annotations.Nullable;
@@ -16,6 +16,12 @@
 
 public class ChunkLoader {
 
+    private final MCAWorld world;
+
+    public ChunkLoader(MCAWorld world) {
+        this.world = world;
+    }
+
     // sorted list of chunk-versions, loaders at the start of the list are preferred over loaders at the end
     private static final List<ChunkVersionLoader<?>> CHUNK_VERSION_LOADERS = List.of(
             new ChunkVersionLoader<>(Chunk_1_18.Data.class, Chunk_1_18::new, 2844),
@@ -26,23 +32,23 @@ public class ChunkLoader {
 
     private ChunkVersionLoader<?> lastUsedLoader = CHUNK_VERSION_LOADERS.get(0);
 
-    public MCAChunk load(MCARegion region, byte[] data, int offset, int length, Compression compression) throws IOException {
+    public MCAChunk load(byte[] data, int offset, int length, Compression compression) throws IOException {
         InputStream in = new ByteArrayInputStream(data, offset, length);
         in.mark(-1);
 
         // try last used version
         ChunkVersionLoader<?> usedLoader = lastUsedLoader;
         MCAChunk chunk;
         try (InputStream decompressedIn = new BufferedInputStream(compression.decompress(in))) {
-            chunk = usedLoader.load(region, decompressedIn);
+            chunk = usedLoader.load(world, decompressedIn);
         }
 
         // check version and reload chunk if the wrong loader has been used and a better one has been found
         ChunkVersionLoader<?> actualLoader = findBestLoaderForVersion(chunk.getDataVersion());
         if (actualLoader != null && usedLoader != actualLoader) {
             in.reset(); // reset read position
             try (InputStream decompressedIn = new BufferedInputStream(compression.decompress(in))) {
-                chunk = actualLoader.load(region, decompressedIn);
+                chunk = actualLoader.load(world, decompressedIn);
             }
             lastUsedLoader = actualLoader;
         }
@@ -62,12 +68,12 @@ public MCAChunk load(MCARegion region, byte[] data, int offset, int length, Comp
     private static class ChunkVersionLoader<D extends MCAChunk.Data> {
 
         private final Class<D> dataType;
-        private final BiFunction<MCARegion, D, MCAChunk> constructor;
+        private final BiFunction<MCAWorld, D, MCAChunk> constructor;
         private final int dataVersion;
 
-        public MCAChunk load(MCARegion region, InputStream in) throws IOException {
+        public MCAChunk load(MCAWorld world, InputStream in) throws IOException {
             D data = MCAUtil.BLUENBT.read(in, dataType);
-            return mightSupport(data.getDataVersion()) ? constructor.apply(region, data) : new MCAChunk(region, data) {};
+            return mightSupport(data.getDataVersion()) ? constructor.apply(world, data) : new MCAChunk(world, data) {};
         }
 
         public boolean mightSupport(int dataVersion) {

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/mca/chunk/Chunk_1_13.java

@@ -7,7 +7,7 @@
 import de.bluecolored.bluemap.core.world.DimensionType;
 import de.bluecolored.bluemap.core.world.LightData;
 import de.bluecolored.bluemap.core.world.mca.MCAUtil;
-import de.bluecolored.bluemap.core.world.mca.region.MCARegion;
+import de.bluecolored.bluemap.core.world.mca.MCAWorld;
 import de.bluecolored.bluenbt.NBTName;
 import lombok.Getter;
 import org.jetbrains.annotations.Nullable;
@@ -38,8 +38,8 @@ public class Chunk_1_13 extends MCAChunk {
 
     final int[] biomes;
 
-    public Chunk_1_13(MCARegion region, Data data) {
-        super(region, data);
+    public Chunk_1_13(MCAWorld world, Data data) {
+        super(world, data);
 
         Level level = data.level;
 
@@ -50,7 +50,7 @@ public Chunk_1_13(MCARegion region, Data data) {
                 STATUS_POSTPROCESSED.equals(level.status);
         this.inhabitedTime = level.inhabitedTime;
 
-        DimensionType dimensionType = getRegion().getWorld().getDimensionType();
+        DimensionType dimensionType = getWorld().getDimensionType();
         this.skyLight = dimensionType.hasSkylight() ? 16 : 0;
 
         this.worldSurfaceHeights = level.heightmaps.worldSurface;

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/mca/chunk/Chunk_1_15.java

@@ -1,12 +1,12 @@
 package de.bluecolored.bluemap.core.world.mca.chunk;
 
 import de.bluecolored.bluemap.core.world.Biome;
-import de.bluecolored.bluemap.core.world.mca.region.MCARegion;
+import de.bluecolored.bluemap.core.world.mca.MCAWorld;
 
 public class Chunk_1_15 extends Chunk_1_13 {
 
-    public Chunk_1_15(MCARegion region, Data data) {
-        super(region, data);
+    public Chunk_1_15(MCAWorld world, Data data) {
+        super(world, data);
     }
 
     @Override

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/mca/chunk/Chunk_1_16.java

@@ -7,8 +7,8 @@
 import de.bluecolored.bluemap.core.world.DimensionType;
 import de.bluecolored.bluemap.core.world.LightData;
 import de.bluecolored.bluemap.core.world.mca.MCAUtil;
+import de.bluecolored.bluemap.core.world.mca.MCAWorld;
 import de.bluecolored.bluemap.core.world.mca.PackedIntArrayAccess;
-import de.bluecolored.bluemap.core.world.mca.region.MCARegion;
 import de.bluecolored.bluenbt.NBTName;
 import lombok.Getter;
 import org.jetbrains.annotations.Nullable;
@@ -37,16 +37,16 @@ public class Chunk_1_16 extends MCAChunk {
 
     private final int[] biomes;
 
-    public Chunk_1_16(MCARegion region, Data data) {
-        super(region, data);
+    public Chunk_1_16(MCAWorld world, Data data) {
+        super(world, data);
 
         Level level = data.level;
 
         this.generated = !STATUS_EMPTY.equals(level.status);
         this.hasLightData = STATUS_FULL.equals(level.status);
         this.inhabitedTime = level.inhabitedTime;
 
-        DimensionType dimensionType = getRegion().getWorld().getDimensionType();
+        DimensionType dimensionType = getWorld().getDimensionType();
         this.skyLight = dimensionType.hasSkylight() ? 16 : 0;
 
         int worldHeight = dimensionType.getHeight();

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/mca/chunk/Chunk_1_18.java

@@ -7,8 +7,8 @@
 import de.bluecolored.bluemap.core.world.DimensionType;
 import de.bluecolored.bluemap.core.world.LightData;
 import de.bluecolored.bluemap.core.world.mca.MCAUtil;
+import de.bluecolored.bluemap.core.world.mca.MCAWorld;
 import de.bluecolored.bluemap.core.world.mca.PackedIntArrayAccess;
-import de.bluecolored.bluemap.core.world.mca.region.MCARegion;
 import de.bluecolored.bluenbt.NBTName;
 import lombok.Getter;
 import org.jetbrains.annotations.Nullable;
@@ -37,14 +37,14 @@ public class Chunk_1_18 extends MCAChunk {
     private final Section[] sections;
     private final int sectionMin, sectionMax;
 
-    public Chunk_1_18(MCARegion region, Data data) {
-        super(region, data);
+    public Chunk_1_18(MCAWorld world, Data data) {
+        super(world, data);
 
         this.generated = !STATUS_EMPTY.equals(data.status);
         this.hasLightData = STATUS_FULL.equals(data.status);
         this.inhabitedTime = data.inhabitedTime;
 
-        DimensionType dimensionType = getRegion().getWorld().getDimensionType();
+        DimensionType dimensionType = getWorld().getDimensionType();
         this.worldMinY = dimensionType.getMinY();
         this.skyLight = dimensionType.hasSkylight() ? 16 : 0;
 

BlueMapCore/src/main/java/de/bluecolored/bluemap/core/world/mca/chunk/MCAChunk.java

@@ -2,7 +2,7 @@
 
 import de.bluecolored.bluemap.core.world.BlockState;
 import de.bluecolored.bluemap.core.world.Chunk;
-import de.bluecolored.bluemap.core.world.mca.region.MCARegion;
+import de.bluecolored.bluemap.core.world.mca.MCAWorld;
 import lombok.Getter;
 import lombok.ToString;
 
@@ -20,11 +20,11 @@ public abstract class MCAChunk implements Chunk {
     protected static final String[] EMPTY_STRING_ARRAY = new String[0];
     protected static final BlockState[] EMPTY_BLOCKSTATE_ARRAY = new BlockState[0];
 
-    private final MCARegion region;
+    private final MCAWorld world;
     private final int dataVersion;
 
-    public MCAChunk(MCARegion region, Data chunkData) {
-        this.region = region;
+    public MCAChunk(MCAWorld world, Data chunkData) {
+        this.world = world;
         this.dataVersion = chunkData.getDataVersion();
     }