// get_attach(self)
int ObjectRef::l_get_attach(lua_State *L)
{
GET_ENV_PTR;
ObjectRef *ref = checkobject(L, 1);
ServerActiveObject *co = getobject(ref);
if (co == NULL)
return 0;
// Do it
int parent_id = 0;
std::string bone;
v3f position = v3f(0, 0, 0);
v3f rotation = v3f(0, 0, 0);
co->getAttachment(&parent_id, &bone, &position, &rotation);
if (!parent_id)
return 0;
ServerActiveObject *parent = env->getActiveObject(parent_id);
getScriptApiBase(L)->objectrefGetOrCreate(L, parent);
lua_pushlstring(L, bone.c_str(), bone.size());
push_v3f(L, position);
push_v3f(L, rotation);
return 4;
}
// set_detach(self)
int ObjectRef::l_set_detach(lua_State *L)
{
GET_ENV_PTR;
ObjectRef *ref = checkobject(L, 1);
ServerActiveObject *co = getobject(ref);
if (co == NULL)
return 0;
int parent_id = 0;
std::string bone = "";
v3f position;
v3f rotation;
co->getAttachment(&parent_id, &bone, &position, &rotation);
ServerActiveObject *parent = NULL;
if (parent_id) {
parent = env->getActiveObject(parent_id);
co->setAttachment(0, "", position, rotation);
} else {
co->setAttachment(0, "", v3f(0, 0, 0), v3f(0, 0, 0));
}
// Do it
if (parent != NULL)
parent->removeAttachmentChild(co->getId());
return 0;
}
LuaEntitySAO *getAttachedObject(PlayerSAO *sao, ServerEnvironment *env)
{
if (!sao->isAttached())
return nullptr;
int id;
std::string bone;
v3f dummy;
sao->getAttachment(&id, &bone, &dummy, &dummy);
ServerActiveObject *ao = env->getActiveObject(id);
while (id && ao) {
ao->getAttachment(&id, &bone, &dummy, &dummy);
if (id)
ao = env->getActiveObject(id);
}
return dynamic_cast<LuaEntitySAO *>(ao);
}
// set_attach(self, parent, bone, position, rotation)
int ObjectRef::l_set_attach(lua_State *L)
{
GET_ENV_PTR;
ObjectRef *ref = checkobject(L, 1);
ObjectRef *parent_ref = checkobject(L, 2);
ServerActiveObject *co = getobject(ref);
ServerActiveObject *parent = getobject(parent_ref);
if (co == NULL)
return 0;
if (parent == NULL)
return 0;
// Do it
int parent_id = 0;
std::string bone = "";
v3f position = v3f(0, 0, 0);
v3f rotation = v3f(0, 0, 0);
co->getAttachment(&parent_id, &bone, &position, &rotation);
if (parent_id) {
ServerActiveObject *old_parent = env->getActiveObject(parent_id);
if (old_parent)
old_parent->removeAttachmentChild(co->getId());
}
bone = "";
if (!lua_isnil(L, 3))
bone = lua_tostring(L, 3);
position = v3f(0, 0, 0);
if (!lua_isnil(L, 4))
position = read_v3f(L, 4);
rotation = v3f(0, 0, 0);
if (!lua_isnil(L, 5))
rotation = read_v3f(L, 5);
co->setAttachment(parent->getId(), bone, position, rotation);
parent->addAttachmentChild(co->getId());
return 0;
}