Fix wrong behavior when data covers two adjacent int64 in fillSection

2020-02-18 16:48:14 +08:00
parent 72c389c86f
commit 478fd678c8
1 changed files with 2 additions and 2 deletions
--- a/bot/world/chunk.go
+++ b/bot/world/chunk.go
@ -82,8 +82,8 @@ func fillSection(s *Section, bpb uint, DataArray []int64, palette []uint) {
 		data := uint(DataArray[offset/64])
 		data >>= offset % 64
 		if offset%64 > 64-bpb {
-			l := bpb + offset%64 - 64
-			data &= uint(DataArray[offset/64+1] << l)
+			l := 64 - offset % 64
+			data |= uint(DataArray[offset/64+1] << l)
 		}
 		data &= mask