+/*
+ UnitSAO
+ */
+
+UnitSAO::UnitSAO(ServerEnvironment *env, v3f pos):
+ ServerActiveObject(env, pos)
+{
+ // Initialize something to armor groups
+ m_armor_groups["fleshy"] = 100;
+}
+
+ServerActiveObject *UnitSAO::getParent() const
+{
+ if (!m_attachment_parent_id)
+ return nullptr;
+ // Check if the parent still exists
+ ServerActiveObject *obj = m_env->getActiveObject(m_attachment_parent_id);
+
+ return obj;
+}
+
+void UnitSAO::setArmorGroups(const ItemGroupList &armor_groups)
+{
+ m_armor_groups = armor_groups;
+ m_armor_groups_sent = false;
+}
+
+const ItemGroupList &UnitSAO::getArmorGroups()
+{
+ return m_armor_groups;
+}
+
+void UnitSAO::setAnimation(v2f frame_range, float frame_speed, float frame_blend, bool frame_loop)
+{
+ // store these so they can be updated to clients
+ m_animation_range = frame_range;
+ m_animation_speed = frame_speed;
+ m_animation_blend = frame_blend;
+ m_animation_loop = frame_loop;
+ m_animation_sent = false;
+}
+
+void UnitSAO::getAnimation(v2f *frame_range, float *frame_speed, float *frame_blend, bool *frame_loop)
+{
+ *frame_range = m_animation_range;
+ *frame_speed = m_animation_speed;
+ *frame_blend = m_animation_blend;
+ *frame_loop = m_animation_loop;
+}
+
+void UnitSAO::setAnimationSpeed(float frame_speed)
+{
+ m_animation_speed = frame_speed;
+ m_animation_speed_sent = false;
+}
+
+void UnitSAO::setBonePosition(const std::string &bone, v3f position, v3f rotation)
+{
+ // store these so they can be updated to clients
+ m_bone_position[bone] = core::vector2d<v3f>(position, rotation);
+ m_bone_position_sent = false;
+}
+
+void UnitSAO::getBonePosition(const std::string &bone, v3f *position, v3f *rotation)
+{
+ *position = m_bone_position[bone].X;
+ *rotation = m_bone_position[bone].Y;
+}
+
+void UnitSAO::setAttachment(int parent_id, const std::string &bone, v3f position, v3f rotation)
+{
+ // Attachments need to be handled on both the server and client.
+ // If we just attach on the server, we can only copy the position of the parent. Attachments
+ // are still sent to clients at an interval so players might see them lagging, plus we can't
+ // read and attach to skeletal bones.
+ // If we just attach on the client, the server still sees the child at its original location.
+ // This breaks some things so we also give the server the most accurate representation
+ // even if players only see the client changes.
+
+ int old_parent = m_attachment_parent_id;
+ m_attachment_parent_id = parent_id;
+ m_attachment_bone = bone;
+ m_attachment_position = position;
+ m_attachment_rotation = rotation;
+ m_attachment_sent = false;
+
+ if (parent_id != old_parent) {
+ onDetach(old_parent);
+ onAttach(parent_id);
+ }
+}
+
+void UnitSAO::getAttachment(int *parent_id, std::string *bone, v3f *position,
+ v3f *rotation) const
+{
+ *parent_id = m_attachment_parent_id;
+ *bone = m_attachment_bone;
+ *position = m_attachment_position;
+ *rotation = m_attachment_rotation;
+}
+
+void UnitSAO::clearChildAttachments()
+{
+ for (int child_id : m_attachment_child_ids) {
+ // Child can be NULL if it was deleted earlier
+ if (ServerActiveObject *child = m_env->getActiveObject(child_id))
+ child->setAttachment(0, "", v3f(0, 0, 0), v3f(0, 0, 0));
+ }
+ m_attachment_child_ids.clear();
+}
+
+void UnitSAO::clearParentAttachment()
+{
+ ServerActiveObject *parent = nullptr;
+ if (m_attachment_parent_id) {
+ parent = m_env->getActiveObject(m_attachment_parent_id);
+ setAttachment(0, "", m_attachment_position, m_attachment_rotation);
+ } else {
+ setAttachment(0, "", v3f(0, 0, 0), v3f(0, 0, 0));
+ }
+ // Do it
+ if (parent)
+ parent->removeAttachmentChild(m_id);
+}
+
+void UnitSAO::addAttachmentChild(int child_id)
+{
+ m_attachment_child_ids.insert(child_id);
+}
+
+void UnitSAO::removeAttachmentChild(int child_id)
+{
+ m_attachment_child_ids.erase(child_id);
+}
+
+const std::unordered_set<int> &UnitSAO::getAttachmentChildIds() const
+{
+ return m_attachment_child_ids;
+}
+
+void UnitSAO::onAttach(int parent_id)
+{
+ if (!parent_id)
+ return;
+
+ ServerActiveObject *parent = m_env->getActiveObject(parent_id);
+
+ if (!parent || parent->isGone())
+ return; // Do not try to notify soon gone parent
+
+ if (parent->getType() == ACTIVEOBJECT_TYPE_LUAENTITY) {
+ // Call parent's on_attach field
+ m_env->getScriptIface()->luaentity_on_attach_child(parent_id, this);
+ }
+}
+
+void UnitSAO::onDetach(int parent_id)
+{
+ if (!parent_id)
+ return;
+
+ ServerActiveObject *parent = m_env->getActiveObject(parent_id);
+ if (getType() == ACTIVEOBJECT_TYPE_LUAENTITY)
+ m_env->getScriptIface()->luaentity_on_detach(m_id, parent);
+
+ if (!parent || parent->isGone())
+ return; // Do not try to notify soon gone parent
+
+ if (parent->getType() == ACTIVEOBJECT_TYPE_LUAENTITY)
+ m_env->getScriptIface()->luaentity_on_detach_child(parent_id, this);
+}
+
+ObjectProperties* UnitSAO::accessObjectProperties()
+{
+ return &m_prop;
+}
+
+void UnitSAO::notifyObjectPropertiesModified()
+{
+ m_properties_sent = false;
+}
+