2 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program. If not, see <http://www.gnu.org/licenses/>.
17 #ifndef HEADER_SUPERTUX_OBJECT_PATH_WALKER_HPP
18 #define HEADER_SUPERTUX_OBJECT_PATH_WALKER_HPP
22 #include "object/path.hpp"
25 * A walker that travels along a path
30 PathWalker(const Path* path, bool running = true);
31 virtual ~PathWalker();
34 * advances the path walker on the path and returns the position delta
35 * to the last position
37 virtual Vector advance(float elapsed_time);
39 /** advance until at given node, then stop */
40 void goto_node(int node_no);
42 /** start advancing automatically */
45 /** stop advancing automatically */
48 /** returns true if PathWalker is currently moving */
60 * set to false to immediately stop advancing
64 size_t current_node_nr;
68 * stop advancing automatically when this node is reached
73 * the position between the current node and the next node as fraction
82 PathWalker(const PathWalker&);
83 PathWalker& operator=(const PathWalker&);