+PathWalker::goto_node(int node_no)
+{
+ if (node_no == stop_at_node_nr) return;
+ running = true;
+ stop_at_node_nr = node_no;
+}
+
+void
+PathWalker::start_moving()
+{
+ running = true;
+ stop_at_node_nr = -1;
+}
+
+void
+PathWalker::stop_moving()
+{
+ stop_at_node_nr = next_node_nr;
+}
+
+
+void