Method _process_group

scene/main/scene_tree.cpp:1153–1209

}

void SceneTree::_process_group(ProcessGroup *p_group, bool p_physics) {
	p_group->call_queue.flush(); // Flush messages before processing.

	Vector<Node *> &nodes = p_physics ? p_group->physics_nodes : p_group->nodes;
	if (nodes.is_empty()) {
		return;
	}

	if (p_physics) {
		if (p_group->physics_node_order_dirty) {
			nodes.sort_custom<Node::ComparatorWithPhysicsPriority>();
			p_group->physics_node_order_dirty = false;
		}
	} else {
		if (p_group->node_order_dirty) {
			nodes.sort_custom<Node::ComparatorWithPriority>();
			p_group->node_order_dirty = false;
		}
	}

	// Make a copy, so if nodes are added/removed from process, this does not break
	Vector<Node *> nodes_copy = nodes;

	uint32_t node_count = nodes_copy.size();
	Node **nodes_ptr = (Node **)nodes_copy.ptr(); // Force cast, pointer will not change.

	for (uint32_t i = 0; i < node_count; i++) {
		Node *n = nodes_ptr[i];
		if (nodes_removed_on_group_call.has(n)) {
			// Node may have been removed during process, skip it.
			// Keep in mind removals can only happen on the main thread.
			continue;
		}

		if (!n->can_process() || !n->is_inside_tree()) {
			continue;
		}

		if (p_physics) {
			if (n->is_physics_processing_internal()) {
				n->notification(Node::NOTIFICATION_INTERNAL_PHYSICS_PROCESS);
			}
			if (n->is_physics_processing()) {
				n->notification(Node::NOTIFICATION_PHYSICS_PROCESS);
			}
		} else {
			if (n->is_processing_internal()) {
				n->notification(Node::NOTIFICATION_INTERNAL_PROCESS);
			}
			if (n->is_processing()) {
				n->notification(Node::NOTIFICATION_PROCESS);
			}
		}
	}

	p_group->call_queue.flush(); // Flush messages also after processing (for potential deferred calls).
}