1// SuperTux - Wind
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 "object/wind.hpp"
18
19#include "editor/editor.hpp"
20#include "math/random.hpp"
21#include "object/particles.hpp"
22#include "object/player.hpp"
23#include "supertux/sector.hpp"
24#include "util/reader_mapping.hpp"
25#include "video/drawing_context.hpp"
26
27Wind::Wind(const ReaderMapping& reader) :
28 MovingObject(reader),
29 ExposedObject<Wind, scripting::Wind>(this),
30 blowing(),
31 speed(),
32 acceleration(),
33 new_size(),
34 dt_sec(0)
35{
36 float w,h;
37 reader.get("x", m_col.m_bbox.get_left(), 0.0f);
38 reader.get("y", m_col.m_bbox.get_top(), 0.0f);
39 reader.get("width", w, 32.0f);
40 reader.get("height", h, 32.0f);
41 m_col.m_bbox.set_size(w, h);
42
43 reader.get("blowing", blowing, true);
44
45 reader.get("speed-x", speed.x, 0.0f);
46 reader.get("speed-y", speed.y, 0.0f);
47
48 reader.get("acceleration", acceleration, 100.0f);
49
50 set_group(COLGROUP_TOUCHABLE);
51}
52
53ObjectSettings
54Wind::get_settings()
55{
56 new_size.x = m_col.m_bbox.get_width();
57 new_size.y = m_col.m_bbox.get_height();
58
59 ObjectSettings result = MovingObject::get_settings();
60
61 //result.add_float("width", &new_size.x, "width", OPTION_HIDDEN);
62 //result.add_float("height", &new_size.y, "height", OPTION_HIDDEN);
63 result.add_float(_("Speed X"), &speed.x, "speed-x");
64 result.add_float(_("Speed Y"), &speed.y, "speed-y");
65 result.add_float(_("Acceleration"), &acceleration, "acceleration");
66 result.add_bool(_("Blowing"), &blowing, "blowing", true);
67
68 result.reorder({"blowing", "speed-x", "speed-y", "acceleration", "region", "name", "x", "y"});
69
70 return result;
71}
72
73void
74Wind::update(float dt_sec_)
75{
76 dt_sec = dt_sec_;
77
78 if (!blowing) return;
79 if (m_col.m_bbox.get_width() <= 16 || m_col.m_bbox.get_height() <= 16) return;
80
81 // TODO: nicer, configurable particles for wind?
82 if (graphicsRandom.rand(0, 100) < 20) {
83 // emit a particle
84 Vector ppos = Vector(graphicsRandom.randf(m_col.m_bbox.get_left()+8, m_col.m_bbox.get_right()-8), graphicsRandom.randf(m_col.m_bbox.get_top()+8, m_col.m_bbox.get_bottom()-8));
85 Vector pspeed = Vector(speed.x, speed.y);
86 Sector::get().add<Particles>(ppos, 44, 46, pspeed, Vector(0,0), 1, Color(.4f, .4f, .4f), 3, .1f,
87 LAYER_BACKGROUNDTILES+1);
88 }
89}
90
91void
92Wind::draw(DrawingContext& context)
93{
94 if (Editor::is_active()) {
95 context.color().draw_filled_rect(m_col.m_bbox, Color(0.0f, 1.0f, 1.0f, 0.6f),
96 0.0f, LAYER_OBJECTS);
97 }
98}
99
100HitResponse
101Wind::collision(GameObject& other, const CollisionHit& )
102{
103 if (!blowing) return ABORT_MOVE;
104
105 auto player = dynamic_cast<Player*> (&other);
106 if (player) {
107 if (!player->on_ground()) {
108 player->add_velocity(speed * acceleration * dt_sec, speed);
109 }
110 }
111
112 return ABORT_MOVE;
113}
114
115void
116Wind::start()
117{
118 blowing = true;
119}
120
121void
122Wind::stop()
123{
124 blowing = false;
125}
126
127/* EOF */
128