From 83f779c52dcd64ecd55a590b2a06baf5da9a9814 Mon Sep 17 00:00:00 2001
From: sfence <sfence.software@gmail.com>
Date: Sun, 4 Feb 2024 21:24:08 +0100
Subject: [PATCH] Fix active object adding to not generated block (#14311)
---
doc/lua_api.md | 3 +++
src/serverenvironment.cpp | 22 +++++++++++++---------
2 files changed, 16 insertions(+), 9 deletions(-)
diff --git a/doc/lua_api.md b/doc/lua_api.md
index 469292a72..14ca7e835 100644
--- a/doc/lua_api.md
+++ b/doc/lua_api.md
@@ -5948,8 +5948,11 @@ Environment access
* `minetest.add_entity(pos, name, [staticdata])`: Spawn Lua-defined entity at
position.
* Returns `ObjectRef`, or `nil` if failed
+ * Entities with `static_save = true` can be added also
+ to unloaded and non-generated blocks.
* `minetest.add_item(pos, item)`: Spawn item
* Returns `ObjectRef`, or `nil` if failed
+ * Items can be added also to unloaded and non-generated blocks.
* `minetest.get_player_by_name(name)`: Get an `ObjectRef` to a player
* `minetest.get_objects_inside_radius(pos, radius)`: returns a list of
ObjectRefs.
diff --git a/src/serverenvironment.cpp b/src/serverenvironment.cpp
index 7b188f60f..753899fb8 100644
--- a/src/serverenvironment.cpp
+++ b/src/serverenvironment.cpp
@@ -1044,7 +1044,8 @@ void ServerEnvironment::activateBlock(MapBlock *block, u32 additional_dtime)
<<stamp<<", game time: "<<m_game_time<<std::endl;*/
// Remove stored static objects if clearObjects was called since block's timestamp
- if (stamp == BLOCK_TIMESTAMP_UNDEFINED || stamp < m_last_clear_objects_time) {
+ // Note that non-generated blocks may still have stored static objects
+ if (stamp != BLOCK_TIMESTAMP_UNDEFINED && stamp < m_last_clear_objects_time) {
block->m_static_objects.clearStored();
// do not set changed flag to avoid unnecessary mapblock writes
}
@@ -1892,11 +1893,6 @@ u16 ServerEnvironment::addActiveObjectRaw(std::unique_ptr<ServerActiveObject> ob
return 0;
}
- // Register reference in scripting api (must be done before post-init)
- m_script->addObjectReference(object);
- // Post-initialize object
- object->addedToEnvironment(dtime_s);
-
// Add static data to block
if (object->isStaticAllowed()) {
// Add static object to active static list of the block
@@ -1915,12 +1911,20 @@ u16 ServerEnvironment::addActiveObjectRaw(std::unique_ptr<ServerActiveObject> ob
MOD_REASON_ADD_ACTIVE_OBJECT_RAW);
} else {
v3s16 p = floatToInt(objectpos, BS);
- errorstream<<"ServerEnvironment::addActiveObjectRaw(): "
- <<"could not emerge block for storing id="<<object->getId()
- <<" statically (pos="<<p<<")"<<std::endl;
+ errorstream << "ServerEnvironment::addActiveObjectRaw(): "
+ << "could not emerge block " << p << " for storing id="
+ << object->getId() << " statically" << std::endl;
+ // clean in case of error
+ m_ao_manager.removeObject(object->getId());
+ return 0;
}
}
+ // Register reference in scripting api (must be done before post-init)
+ m_script->addObjectReference(object);
+ // Post-initialize object
+ object->addedToEnvironment(dtime_s);
+
return object->getId();
}