Merge remote-tracking branch 'origin/fix-fabric-world-manager-perform…

…ance' into feature/1.21.2

bootstrap/mod/src/main/java/org/geysermc/geyser/platform/mod/world/GeyserModWorldManager.java

@@ -33,8 +33,10 @@
 import net.minecraft.core.registries.BuiltInRegistries;
 import net.minecraft.network.chat.Component;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerChunkCache;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.ChunkPos;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.Block;
 import net.minecraft.world.level.block.entity.BannerBlockEntity;
@@ -43,7 +45,6 @@
 import net.minecraft.world.level.block.entity.DecoratedPotBlockEntity;
 import net.minecraft.world.level.chunk.ChunkAccess;
 import net.minecraft.world.level.chunk.LevelChunkSection;
-import net.minecraft.world.level.chunk.status.ChunkStatus;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.cloudburstmc.math.vector.Vector3i;
 import org.geysermc.geyser.level.GeyserWorldManager;
@@ -88,7 +89,8 @@ public int getBlockAt(GeyserSession session, int x, int y, int z) {
             return 0;
         }
 
-        ChunkAccess chunk = level.getChunkSource().getChunk(x >> 4, z >> 4, ChunkStatus.FULL, false);
+        // Only loads active chunks, and doesn't delegate to main thread
+        ChunkAccess chunk = ((ServerChunkCache) level.getChunkSource()).chunkMap.getChunkToSend(ChunkPos.asLong(x >> 4, z >> 4));
         if (chunk == null) {
             return 0;
         }