From c800c5d471259a226b0323380b6d14342ef00910 Mon Sep 17 00:00:00 2001
From: adman <adman.else@gmail.com>
Date: Sat, 9 May 2026 16:34:31 +0200
Subject: [PATCH] improve chunk section palette handling for blocks

---
 level/anvil/chunk.go      | 12 +++++++++---
 tools/serve_world/main.go |  4 ++--
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/level/anvil/chunk.go b/level/anvil/chunk.go
index 57c4bf1..be4b680 100644
--- a/level/anvil/chunk.go
+++ b/level/anvil/chunk.go
@@ -44,11 +44,17 @@ func (c Chunk) ToStorage(version string) (toChunk *level.Chunk, err error) {
 			}
 			toChunk.Sections[i].BlockCount = int16(level.BlocksPerChunkSection - level.CountStorage(toChunk.Sections[i].Blocks, 0))
 		} else {
-			toChunk.Sections[i].Blocks, err = f.FullWith(0) //TODO PALLETE index 0 if avial
+			var fillerId = int32(0)
+			if len(pallete) == 1 {
+				fillerId = pallete[0]
+				if fillerId != 0 {
+					toChunk.Sections[i].BlockCount = level.BlocksPerChunkSection
+				}
+			}
+			toChunk.Sections[i].Blocks, err = f.FullWith(fillerId)
 			if err != nil {
 				return
 			}
-			toChunk.Sections[i].BlockCount = 0
 		}
 	}
 	f = level.MakeBiomeFormat(version)
@@ -78,7 +84,7 @@ func (c Chunk) ToStorage(version string) (toChunk *level.Chunk, err error) {
 			if len(pallete) == 1 {
 				fillerId = pallete[0]
 			}
-			toChunk.Sections[i].Biomes, err = f.FullWith(fillerId) //TODO PALLETE index 0 if avial
+			toChunk.Sections[i].Biomes, err = f.FullWith(fillerId)
 			if err != nil {
 				return
 			}
diff --git a/tools/serve_world/main.go b/tools/serve_world/main.go
index 9714e4c..ef9b648 100644
--- a/tools/serve_world/main.go
+++ b/tools/serve_world/main.go
@@ -113,9 +113,9 @@ func Limbo(c *proto.Conn) (err error) {
 	}
 	err = s.Send(&v1_21_8.PlayToClientPacketPosition{
 		TeleportId: 0,
-		X:          0,
+		X:          0.5,
 		Y:          100,
-		Z:          0,
+		Z:          0.5,
 		Dx:         0,
 		Dy:         0,
 		Dz:         0,