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Fix object duplication bug

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This commit is contained in:
Perttu Ahola 2011-10-18 02:58:15 +03:00
parent fe338745a3
commit 22b07bdb30
1 changed files with 49 additions and 10 deletions
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59
src/environment.cpp
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@ -1695,6 +1695,10 @@ void ServerEnvironment::deactivateFarObjects(bool force_delete)
continue;
}
// If pending deactivation, let removeRemovedObjects() do it
if(obj->m_pending_deactivation)
continue;
u16 id = i.getNode()->getKey();
v3f objectpos = obj->getBasePosition();
@ -1709,10 +1713,42 @@ void ServerEnvironment::deactivateFarObjects(bool force_delete)
<<"deactivating object id="<<id<<" on inactive block "
<<PP(blockpos_o)<<std::endl;
// If known by some client, don't immediately delete.
bool pending_delete = (obj->m_known_by_count > 0 && !force_delete);
/*
Update the static data
*/
// Create new static object
std::string staticdata_new = obj->getStaticData();
StaticObject s_obj(obj->getType(), objectpos, staticdata_new);
bool stays_in_same_block = false;
bool data_changed = true;
if(obj->m_static_exists){
if(obj->m_static_block == blockpos_o)
stays_in_same_block = true;
MapBlock *block = m_map->emergeBlock(obj->m_static_block, false);
core::map<u16, StaticObject>::Node *n =
block->m_static_objects.m_active.find(id);
if(n){
StaticObject static_old = n->getValue();
if(static_old.data == staticdata_new &&
(static_old.pos - objectpos).getLength() < 2*BS)
data_changed = false;
} else {
errorstream<<"ServerEnvironment::deactivateFarObjects(): "
<<"id="<<id<<" m_static_exists=true but "
<<"static data doesn't actually exist in "
<<PP(obj->m_static_block)<<std::endl;
}
}
// Delete old static object
if(obj->m_static_exists)
{
@ -1720,14 +1756,13 @@ void ServerEnvironment::deactivateFarObjects(bool force_delete)
if(block)
{
block->m_static_objects.remove(id);
block->raiseModified(MOD_STATE_WRITE_AT_UNLOAD);
obj->m_static_exists = false;
// Only mark block as modified if data changed considerably
if(!stays_in_same_block || data_changed)
block->raiseModified(MOD_STATE_WRITE_NEEDED);
}
}
// Create new static object
std::string staticdata = obj->getStaticData();
StaticObject s_obj(obj->getType(), objectpos, staticdata);
// Add to the block where the object is located in
v3s16 blockpos = getNodeBlockPos(floatToInt(objectpos, BS));
// Get or generate the block
@ -1744,8 +1779,13 @@ void ServerEnvironment::deactivateFarObjects(bool force_delete)
<<" Forcing delete."<<std::endl;
force_delete = true;
} else {
block->m_static_objects.insert(0, s_obj);
block->raiseModified(MOD_STATE_WRITE_AT_UNLOAD);
u16 new_id = pending_delete ? id : 0;
block->m_static_objects.insert(new_id, s_obj);
// Only mark block as modified if data changed considerably
if(!stays_in_same_block || data_changed)
block->raiseModified(MOD_STATE_WRITE_NEEDED);
obj->m_static_exists = true;
obj->m_static_block = block->getPos();
}
@ -1758,12 +1798,11 @@ void ServerEnvironment::deactivateFarObjects(bool force_delete)
}
/*
Delete active object if not known by some client,
else set pending deactivation
If known by some client, set pending deactivation.
Otherwise delete it immediately.
*/
// If known by some client, don't delete.
if(obj->m_known_by_count > 0 && force_delete == false)
if(pending_delete)
{
verbosestream<<"ServerEnvironment::deactivateFarObjects(): "
<<"object id="<<id<<" is known by clients"