4 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 #ifndef __PATH_WALKER_HPP__
21 #define __PATH_WALKER_HPP__
24 #include "math/vector.hpp"
25 #include "game_object.hpp"
26 #include "lisp/lisp.hpp"
27 #include "serializable.hpp"
30 * A walker that travels along a path
35 PathWalker(const Path* path, bool running = true);
36 virtual ~PathWalker();
39 * advanves the path walker on the path and returns the position delta
40 * to the last position
42 virtual Vector advance(float elapsed_time);
44 /** advance until at given node, then stop */
45 void goto_node(int node_no);
47 /** start advancing automatically */
50 /** stop advancing automatically */
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