Readd flare

Issues were addressed in 2.0.0

api/build.gradle.kts

@@ -13,6 +13,8 @@ dependencies {
         targetConfiguration = "shadow"
     }
     api(libs.fastutil)
+    api(libs.flare)
+    api(libs.flareFastutil)
     api(libs.openNBT)
     api(libs.gson)
 

api/src/main/java/com/viaversion/viaversion/api/minecraft/chunks/Chunk.java

@@ -28,6 +28,7 @@ import org.checkerframework.checker.nullness.qual.Nullable;
 import java.util.BitSet;
 import java.util.List;
 
+// TODO specialized sub interfaces
 public interface Chunk {
 
     /**

api/src/main/java/com/viaversion/viaversion/api/protocol/AbstractProtocol.java

@@ -474,7 +474,7 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
 
         /**
          * Returns the unmapped packet type, or null if mapped over ids.
-         * This is NOT the same as calling {@link #getOldId()} (think of unmapped vs. old in 1.17->1.16).
+         * This is NOT the same as calling {@link #getOldId()} (think of unmapped vs. old in 1.17→1.16).
          *
          * @return unmapped packet type, or null if mapped over ids
          */
@@ -485,7 +485,7 @@ public abstract class AbstractProtocol<C1 extends ClientboundPacketType, C2 exte
 
         /**
          * Returns the mapped packet type, or null if mapped over ids or mapped to no packet type.
-         * This is NOT the same as calling {@link #getNewId()} (think of mapped vs. new in 1.17->1.16).
+         * This is NOT the same as calling {@link #getNewId()} (think of mapped vs. new in 1.17→1.16).
          *
          * @return new packet type, or null if mapped over ids or mapped to no packet type
          */

build-logic/src/main/kotlin/via.shadow-conventions.gradle.kts

@@ -29,6 +29,7 @@ fun ShadowJar.configureRelocations() {
     relocate("com.google.gson", "com.viaversion.viaversion.libs.gson")
     relocate("com.github.steveice10.opennbt", "com.viaversion.viaversion.libs.opennbt")
     relocate("it.unimi.dsi.fastutil", "com.viaversion.viaversion.libs.fastutil")
+    relocate("space.vectrix.flare", "com.viaversion.viaversion.libs.flare")
 }
 
 fun ShadowJar.configureExcludes() {
@@ -52,4 +53,9 @@ fun ShadowJar.configureExcludes() {
     exclude("it/unimi/dsi/fastutil/*/*Synchronized*")
     exclude("it/unimi/dsi/fastutil/*/*Unmodifiable*")
     exclude("it/unimi/dsi/fastutil/io/*")
+    // Flare - only need int maps
+    exclude("space/vectrix/flare/fastutil/*Double*")
+    exclude("space/vectrix/flare/fastutil/*Float*")
+    exclude("space/vectrix/flare/fastutil/*Long*")
+    exclude("space/vectrix/flare/fastutil/*Short*")
 }

common/src/main/java/com/viaversion/viaversion/data/entity/EntityTrackerBase.java

@@ -24,14 +24,13 @@ import com.viaversion.viaversion.api.data.entity.ClientEntityIdChangeListener;
 import com.viaversion.viaversion.api.data.entity.EntityTracker;
 import com.viaversion.viaversion.api.data.entity.StoredEntityData;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 import org.checkerframework.checker.nullness.qual.Nullable;
-
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
+import space.vectrix.flare.fastutil.Int2ObjectSyncMap;
 
 public class EntityTrackerBase implements EntityTracker, ClientEntityIdChangeListener {
-    private final Map<Integer, EntityType> entityTypes = new ConcurrentHashMap<>();
-    private final Map<Integer, StoredEntityData> entityData;
+    private final Int2ObjectMap<EntityType> entityTypes = Int2ObjectSyncMap.hashmap();
+    private final Int2ObjectMap<StoredEntityData> entityData;
     private final UserConnection connection;
     private final EntityType playerType;
     private int clientEntityId = -1;
@@ -46,7 +45,7 @@ public class EntityTrackerBase implements EntityTracker, ClientEntityIdChangeLis
     public EntityTrackerBase(UserConnection connection, @Nullable EntityType playerType, boolean storesEntityData) {
         this.connection = connection;
         this.playerType = playerType;
-        this.entityData = storesEntityData ? new ConcurrentHashMap<>() : null;
+        this.entityData = storesEntityData ? Int2ObjectSyncMap.hashmap() : null;
     }
 
     @Override

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_11to1_10/storage/EntityTracker1_11.java

@@ -17,15 +17,14 @@
  */
 package com.viaversion.viaversion.protocols.protocol1_11to1_10.storage;
 
-import com.google.common.collect.Sets;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.entities.Entity1_11Types.EntityType;
 import com.viaversion.viaversion.data.entity.EntityTrackerBase;
-
-import java.util.Set;
+import it.unimi.dsi.fastutil.ints.IntSet;
+import space.vectrix.flare.fastutil.Int2ObjectSyncMap;
 
 public class EntityTracker1_11 extends EntityTrackerBase {
-    private final Set<Integer> holograms = Sets.newConcurrentHashSet();
+    private final IntSet holograms = Int2ObjectSyncMap.hashset();
 
     public EntityTracker1_11(UserConnection user) {
         super(user, EntityType.PLAYER);

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_13to1_12_2/storage/BlockStorage.java

@@ -21,6 +21,7 @@ import com.viaversion.viaversion.api.connection.StorableObject;
 import com.viaversion.viaversion.api.minecraft.Position;
 import it.unimi.dsi.fastutil.ints.IntOpenHashSet;
 import it.unimi.dsi.fastutil.ints.IntSet;
+import space.vectrix.flare.SyncMap;
 
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
@@ -28,7 +29,7 @@ import java.util.concurrent.ConcurrentHashMap;
 // TODO Fix memory leak lolz (only a smol one tho)
 public class BlockStorage implements StorableObject {
     private static final IntSet WHITELIST = new IntOpenHashSet(46, .99F);
-    private final Map<Position, ReplacementData> blocks = new ConcurrentHashMap<>();
+    private final Map<Position, ReplacementData> blocks = SyncMap.hashmap();
 
     static {
         // Flower pots

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_14to1_13_2/storage/EntityTracker1_14.java

@@ -20,15 +20,14 @@ package com.viaversion.viaversion.protocols.protocol1_14to1_13_2.storage;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.entities.Entity1_14Types;
 import com.viaversion.viaversion.data.entity.EntityTrackerBase;
-
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
+import space.vectrix.flare.fastutil.Int2ObjectSyncMap;
 
 public class EntityTracker1_14 extends EntityTrackerBase {
-    private final Map<Integer, Byte> insentientData = new ConcurrentHashMap<>();
+    private final Int2ObjectMap<Byte> insentientData = Int2ObjectSyncMap.hashmap();
     // 0x1 = sleeping, 0x2 = riptide
-    private final Map<Integer, Byte> sleepingAndRiptideData = new ConcurrentHashMap<>();
-    private final Map<Integer, Byte> playerEntityFlags = new ConcurrentHashMap<>();
+    private final Int2ObjectMap<Byte> sleepingAndRiptideData = Int2ObjectSyncMap.hashmap();
+    private final Int2ObjectMap<Byte> playerEntityFlags = Int2ObjectSyncMap.hashmap();
     private int latestTradeWindowId;
     private boolean forceSendCenterChunk = true;
     private int chunkCenterX, chunkCenterZ;

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_9to1_8/storage/EntityTracker1_9.java

@@ -18,7 +18,6 @@
 package com.viaversion.viaversion.protocols.protocol1_9to1_8.storage;
 
 import com.google.common.cache.CacheBuilder;
-import com.google.common.collect.Sets;
 import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.legacy.bossbar.BossBar;
@@ -40,25 +39,22 @@ import com.viaversion.viaversion.protocols.protocol1_9to1_8.chat.GameMode;
 import com.viaversion.viaversion.protocols.protocol1_9to1_8.metadata.MetadataRewriter1_9To1_8;
 import com.viaversion.viaversion.protocols.protocol1_9to1_8.providers.BossBarProvider;
 import com.viaversion.viaversion.protocols.protocol1_9to1_8.providers.EntityIdProvider;
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
+import it.unimi.dsi.fastutil.ints.IntSet;
+import space.vectrix.flare.fastutil.Int2ObjectSyncMap;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.UUID;
-import java.util.concurrent.ConcurrentHashMap;
+import java.util.*;
 import java.util.concurrent.TimeUnit;
 
 public class EntityTracker1_9 extends EntityTrackerBase {
     public static final String WITHER_TRANSLATABLE = "{\"translate\":\"entity.WitherBoss.name\"}";
     public static final String DRAGON_TRANSLATABLE = "{\"translate\":\"entity.EnderDragon.name\"}";
-    private final Map<Integer, UUID> uuidMap = new ConcurrentHashMap<>();
-    private final Map<Integer, List<Metadata>> metadataBuffer = new ConcurrentHashMap<>();
-    private final Map<Integer, Integer> vehicleMap = new ConcurrentHashMap<>();
-    private final Map<Integer, BossBar> bossBarMap = new ConcurrentHashMap<>();
-    private final Set<Integer> validBlocking = Sets.newConcurrentHashSet();
-    private final Set<Integer> knownHolograms = Sets.newConcurrentHashSet();
+    private final Int2ObjectMap<UUID> uuidMap = Int2ObjectSyncMap.hashmap();
+    private final Int2ObjectMap<List<Metadata>> metadataBuffer = Int2ObjectSyncMap.hashmap();
+    private final Int2ObjectMap<Integer> vehicleMap = Int2ObjectSyncMap.hashmap();
+    private final Int2ObjectMap<BossBar> bossBarMap = Int2ObjectSyncMap.hashmap();
+    private final IntSet validBlocking = Int2ObjectSyncMap.hashset();
+    private final Set<Integer> knownHolograms = Int2ObjectSyncMap.hashset();
     private final Set<Position> blockInteractions = Collections.newSetFromMap(CacheBuilder.newBuilder()
             .maximumSize(1000)
             .expireAfterAccess(250, TimeUnit.MILLISECONDS)

gradle/libs.versions.toml

@@ -5,6 +5,7 @@ metadata.format.version = "1.1"
 adventure = "4.9.1"
 gson = "2.8.8"
 fastutil = "8.5.6"
+flare = "2.0.0"
 openNBT = "2.0-SNAPSHOT"
 javassist = "3.28.0-GA"
 
@@ -34,6 +35,8 @@ adventureTextSerializerLegacy = { group = "net.kyori", name = "adventure-text-se
 
 gson = { group = "com.google.code.gson", name = "gson", version.ref = "gson" }
 fastutil = { group = "it.unimi.dsi", name = "fastutil", version.ref = "fastutil" }
+flare = { group = "space.vectrix.flare", name = "flare", version.ref = "flare" }
+flareFastutil = { group = "space.vectrix.flare", name = "flare-fastutil", version.ref = "flare" }
 openNBT = { group = "com.viaversion", name = "opennbt", version.ref = "openNBT" }
 javassist = { group = "org.javassist", name = "javassist", version.ref = "javassist" }