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Get rid of node metadata when it becomes empty

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fixes #8943
This commit is contained in:
sfan5 2022-05-26 15:45:34 +02:00
parent 261a8db9dd
commit 8908a91016
3 changed files with 32 additions and 7 deletions
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13
src/script/lua_api/l_nodemeta.cpp
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@ -40,7 +40,7 @@ NodeMetaRef* NodeMetaRef::checkobject(lua_State *L, int narg)
Metadata* NodeMetaRef::getmeta(bool auto_create)
{
if (m_is_local)
return m_meta;
return m_local_meta;
NodeMetadata *meta = m_env->getMap().getNodeMetadata(m_p);
if (meta == NULL && auto_create) {
@ -62,9 +62,12 @@ void NodeMetaRef::clearMeta()
void NodeMetaRef::reportMetadataChange(const std::string *name)
{
SANITY_CHECK(!m_is_local);
// NOTE: This same code is in rollback_interface.cpp
// Inform other things that the metadata has changed
NodeMetadata *meta = dynamic_cast<NodeMetadata*>(m_meta);
NodeMetadata *meta = dynamic_cast<NodeMetadata*>(getmeta(false));
// If the metadata is now empty, get rid of it
if (meta && meta->empty())
clearMeta();
MapEditEvent event;
event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
@ -174,8 +177,8 @@ NodeMetaRef::NodeMetaRef(v3s16 p, ServerEnvironment *env):
}
NodeMetaRef::NodeMetaRef(Metadata *meta):
m_meta(meta),
m_is_local(true)
m_is_local(true),
m_local_meta(meta)
{
}

6
src/script/lua_api/l_nodemeta.h
View file

@ -33,10 +33,12 @@ class NodeMetadata;
class NodeMetaRef : public MetaDataRef {
private:
bool m_is_local = false;
// Set for server metadata
v3s16 m_p;
ServerEnvironment *m_env = nullptr;
Metadata *m_meta = nullptr;
bool m_is_local = false;
// Set for client metadata
Metadata *m_local_meta = nullptr;
static const char className[];
static const luaL_Reg methodsServer[];