fix for my last committ
[supertux.git] / src / object / platform.cpp
1 //  $Id$
2 //
3 //  SuperTux
4 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
5 //
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.
10 //
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.
15 //
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.
19
20 #include <config.h>
21
22 #include "platform.hpp"
23
24 #include <stdexcept>
25 #include "log.hpp"
26 #include "video/drawing_context.hpp"
27 #include "resources.hpp"
28 #include "player.hpp"
29 #include "path.hpp"
30 #include "path_walker.hpp"
31 #include "sprite/sprite.hpp"
32 #include "lisp/lisp.hpp"
33 #include "object_factory.hpp"
34 #include "scripting/platform.hpp"
35 #include "scripting/squirrel_util.hpp"
36
37 Platform::Platform(const lisp::Lisp& reader)
38         : MovingSprite(reader, Vector(0,0), LAYER_OBJECTS, COLGROUP_STATIC), speed(Vector(0,0))
39 {
40   bool running = true;
41   reader.get("name", name);
42   reader.get("running", running);
43   const lisp::Lisp* pathLisp = reader.get_lisp("path");
44   if(pathLisp == NULL)
45     throw std::runtime_error("No path specified for platform");
46   path.reset(new Path());
47   path->read(*pathLisp);
48   walker.reset(new PathWalker(path.get(), running));
49   bbox.set_pos(path->get_base());
50 }
51
52 Platform::Platform(const Platform& other)
53         : MovingSprite(other), ScriptInterface(other), speed(other.speed)
54 {
55   name = other.name;
56   path.reset(new Path(*other.path));
57   walker.reset(new PathWalker(*other.walker));
58   walker->path = &*path;
59 }
60
61 HitResponse
62 Platform::collision(GameObject& , const CollisionHit& )
63 {
64   return FORCE_MOVE;
65 }
66
67 void
68 Platform::update(float elapsed_time)
69 {
70   movement = walker->advance(elapsed_time) - get_pos();
71   speed = movement / elapsed_time;
72 }
73
74 void
75 Platform::goto_node(int node_no)
76 {
77   walker->goto_node(node_no);
78 }
79
80 void
81 Platform::start_moving()
82 {
83   walker->start_moving();
84 }
85
86 void
87 Platform::stop_moving()
88 {
89   walker->stop_moving();
90 }
91
92 void
93 Platform::expose(HSQUIRRELVM vm, SQInteger table_idx)
94 {
95   if (name.empty()) return;
96   Scripting::Platform* interface = new Scripting::Platform(this);
97   expose_object(vm, table_idx, interface, name, true);
98 }
99
100 void
101 Platform::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
102 {
103   if (name.empty()) return;
104   Scripting::unexpose_object(vm, table_idx, name);
105 }
106
107 IMPLEMENT_FACTORY(Platform, "platform");