Merged changes from branches/supertux-milestone2-grumbel/ to trunk/supertux/
[supertux.git] / src / object / pushbutton.cpp
1 //  SuperTux - PushButton running a script
2 //  Copyright (C) 2006 Christoph Sommer <christoph.sommer@2006.expires.deltadevelopment.de>
3 //
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.
8 //
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.
13 //
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/>.
16
17 #include "audio/sound_manager.hpp"
18 #include "object/player.hpp"
19 #include "object/pushbutton.hpp"
20 #include "sprite/sprite.hpp"
21 #include "supertux/object_factory.hpp"
22 #include "supertux/sector.hpp"
23
24 namespace {
25 const std::string BUTTON_SOUND = "sounds/switch.ogg";
26 //14 -> 8
27 }
28
29 PushButton::PushButton(const Reader& lisp)
30   : MovingSprite(lisp, "images/objects/pushbutton/pushbutton.sprite", LAYER_BACKGROUNDTILES+1, COLGROUP_MOVING), state(OFF)
31 {
32   sound_manager->preload(BUTTON_SOUND);
33   set_action("off", -1);
34   bbox.set_size(sprite->get_current_hitbox_width(), sprite->get_current_hitbox_height());
35
36   if (!lisp.get("script", script)) throw std::runtime_error("no script set");
37 }
38
39 void
40 PushButton::update(float /*elapsed_time*/)
41 {
42 }
43
44 HitResponse
45 PushButton::collision(GameObject& other, const CollisionHit& hit)
46 {
47   Player* player = dynamic_cast<Player*>(&other);
48   if (!player) return FORCE_MOVE;
49   float vy = player->get_physic().get_velocity_y();
50
51   //player->add_velocity(Vector(0, -150));
52   player->get_physic().set_velocity_y(-150);
53
54   if (state != OFF) return FORCE_MOVE;
55   if (!hit.top) return FORCE_MOVE;
56   if (vy <= 0) return FORCE_MOVE;
57
58   // change appearance
59   state = ON;
60   float old_bbox_height = bbox.get_height();
61   set_action("on", -1);
62   float new_bbox_height = bbox.get_height();
63   set_pos(get_pos() + Vector(0, old_bbox_height - new_bbox_height));
64
65   // play sound
66   sound_manager->play(BUTTON_SOUND);
67
68   // run script
69   std::istringstream stream(script);
70   Sector::current()->run_script(stream, "PushButton");
71
72   return FORCE_MOVE;
73 }
74
75 IMPLEMENT_FACTORY(PushButton, "pushbutton");
76
77 /* EOF */