MC Utils

== AT ==
public net.minecraft.server.level.ServerChunkCache mainThread
public net.minecraft.server.level.ServerLevel chunkSource
public org.bukkit.craftbukkit.inventory.CraftItemStack handle
public net.minecraft.server.level.ChunkMap getVisibleChunkIfPresent(J)Lnet/minecraft/server/level/ChunkHolder;
public net.minecraft.server.level.ServerChunkCache mainThreadProcessor
public net.minecraft.server.level.ServerChunkCache$MainThreadExecutor
public net.minecraft.world.level.chunk.LevelChunkSection states

paper-server/src/main/java/org/bukkit/craftbukkit/util/CraftLocation.java

@@ -40,6 +40,17 @@ public final class CraftLocation {
         return new BlockPos(location.getBlockX(), location.getBlockY(), location.getBlockZ());
     }
 
+    // Paper start
+    public static net.minecraft.core.GlobalPos toGlobalPos(Location location) {
+        return net.minecraft.core.GlobalPos.of(((org.bukkit.craftbukkit.CraftWorld) location.getWorld()).getHandle().dimension(), toBlockPosition(location));
+    }
+
+    public static Location fromGlobalPos(net.minecraft.core.GlobalPos globalPos) {
+        BlockPos pos = globalPos.pos();
+        return new org.bukkit.Location(net.minecraft.server.MinecraftServer.getServer().getLevel(globalPos.dimension()).getWorld(), pos.getX(), pos.getY(), pos.getZ());
+    }
+    // Paper end
+
     public static Vec3 toVec3D(Location location) {
         return new Vec3(location.getX(), location.getY(), location.getZ());
     }

paper-server/src/main/java/org/bukkit/craftbukkit/util/DelegatedGeneratorAccess.java

@@ -56,6 +56,7 @@ import net.minecraft.world.phys.shapes.VoxelShape;
 import net.minecraft.world.ticks.LevelTickAccess;
 import net.minecraft.world.ticks.TickPriority;
 import org.bukkit.event.entity.CreatureSpawnEvent;
+import org.jetbrains.annotations.Nullable;
 
 public abstract class DelegatedGeneratorAccess implements WorldGenLevel {
 
@@ -788,4 +789,25 @@ public abstract class DelegatedGeneratorAccess implements WorldGenLevel {
     public boolean isFluidAtPosition(BlockPos pos, Predicate<FluidState> state) {
         return this.handle.isFluidAtPosition(pos, state);
     }
+
+    // Paper start
+    @Nullable
+    @Override
+    public BlockState getBlockStateIfLoaded(final BlockPos blockposition) {
+        return this.handle.getBlockStateIfLoaded(blockposition);
+    }
+
+    @Nullable
+    @Override
+    public FluidState getFluidIfLoaded(final BlockPos blockposition) {
+        return this.handle.getFluidIfLoaded(blockposition);
+    }
+
+    @Nullable
+    @Override
+    public ChunkAccess getChunkIfLoadedImmediately(final int x, final int z) {
+        return this.handle.getChunkIfLoadedImmediately(x, z);
+    }
+    // Paper end
 }
+

paper-server/src/main/java/org/bukkit/craftbukkit/util/DummyGeneratorAccess.java

@@ -212,7 +212,23 @@ public class DummyGeneratorAccess implements WorldGenLevel {
     public FluidState getFluidState(BlockPos pos) {
         return Fluids.EMPTY.defaultFluidState(); // SPIGOT-6634
     }
+    // Paper start - if loaded util
+    @javax.annotation.Nullable
+    @Override
+    public ChunkAccess getChunkIfLoadedImmediately(int x, int z) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
 
+    @Override
+    public BlockState getBlockStateIfLoaded(BlockPos blockposition) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    @Override
+    public FluidState getFluidIfLoaded(BlockPos blockposition) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+    // Paper end
     @Override
     public WorldBorder getWorldBorder() {
         throw new UnsupportedOperationException("Not supported yet.");