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Help modders deal with object invalidation (#14769)

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* Skip invalid objects in raycasts
* Add `ObjectRef:is_valid` method
* Add object inside radius / area iterators which skip invalid objects
* Update docs to clarify object invalidation and how to deal with it

---------

Co-authored-by: sfan5 <sfan5@live.de>
This commit is contained in:
Lars Müller 2024-07-01 20:50:38 +02:00 • committed by GitHub
parent d5444e1172
commit 8ed55b3aff
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6 changed files with 134 additions and 12 deletions
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9
src/script/lua_api/l_object.cpp
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@ -19,6 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_object.h"
#include <cmath>
#include <lua.h>
#include "lua_api/l_internal.h"
#include "lua_api/l_inventory.h"
#include "lua_api/l_item.h"
@ -106,6 +107,13 @@ int ObjectRef::l_remove(lua_State *L)
return 0;
}
// is_valid(self)
int ObjectRef::l_is_valid(lua_State *L)
{
lua_pushboolean(L, getobject(checkObject<ObjectRef>(L, 1)) != nullptr);
return 1;
}
// get_pos(self)
int ObjectRef::l_get_pos(lua_State *L)
{
@ -2646,6 +2654,7 @@ const char ObjectRef::className[] = "ObjectRef";
luaL_Reg ObjectRef::methods[] = {
// ServerActiveObject
luamethod(ObjectRef, remove),
luamethod(ObjectRef, is_valid),
luamethod_aliased(ObjectRef, get_pos, getpos),
luamethod_aliased(ObjectRef, set_pos, setpos),
luamethod(ObjectRef, add_pos),