Add callback on_mapblocks_changed

1 files changed, 9 insertions, 0 deletions

diff --git a/src/script/common/c_converter.h b/src/script/common/c_converter.h
index 2af726d16..f1e4e47ec 100644
--- a/src/script/common/c_converter.h
+++ b/src/script/common/c_converter.h
@@ -121,3 +121,12 @@ void                warn_if_field_exists(lua_State *L, int table,
 
 size_t write_array_slice_float(lua_State *L, int table_index, float *data,
 	v3u16 data_size, v3u16 slice_offset, v3u16 slice_size);
+
+// This must match the implementation in builtin/game/misc_s.lua
+// Note that this returns a floating point result as Lua integers are 32-bit
+inline lua_Number hash_node_position(v3s16 pos)
+{
+	return (((s64)pos.Z + 0x8000L) << 32)
+			| (((s64)pos.Y + 0x8000L) << 16)
+			| ((s64)pos.X + 0x8000L);
+}