1 // SuperTux - Climbable area
2 // Copyright (C) 2007 Christoph Sommer <christoph.sommer@2007.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 "trigger/climbable.hpp"
18
19 #include "editor/editor.hpp"
20 #include "object/player.hpp"
21 #include "supertux/debug.hpp"
22 #include "supertux/resources.hpp"
23 #include "util/reader_mapping.hpp"
24 #include "video/drawing_context.hpp"
25 #include "video/video_system.hpp"
26 #include "video/viewport.hpp"
27
28 namespace {
29 const float GRACE_DX = 8; // how far off may the player's bounding-box be x-wise
30 const float GRACE_DY = 8; // how far off may the player's bounding-box be y-wise
31 const float ACTIVATE_TRY_FOR = 1; // how long to try correcting mis-alignment of player and climbable before giving up
32 const float POSITION_FIX_AX = 30; // x-wise acceleration applied to player when trying to align player and Climbable
33 const float POSITION_FIX_AY = 50; // y-wise acceleration applied to player when trying to align player and Climbable
34 }
35
Climbable(const ReaderMapping & reader)36 Climbable::Climbable(const ReaderMapping& reader) :
37 climbed_by(nullptr),
38 activate_try_timer(),
39 message(),
40 new_size(0.0f, 0.0f)
41 {
42 reader.get("x", m_col.m_bbox.get_left());
43 reader.get("y", m_col.m_bbox.get_top());
44 float w = 32, h = 32;
45 reader.get("width", w);
46 reader.get("height", h);
47 m_col.m_bbox.set_size(w, h);
48 new_size.x = w;
49 new_size.y = h;
50 reader.get("message", message);
51 }
52
Climbable(const Rectf & area)53 Climbable::Climbable(const Rectf& area) :
54 climbed_by(nullptr),
55 activate_try_timer(),
56 message(),
57 new_size(0.0f, 0.0f)
58 {
59 m_col.m_bbox = area;
60 }
61
~Climbable()62 Climbable::~Climbable()
63 {
64 if (climbed_by) {
65 climbed_by->stop_climbing(*this);
66 climbed_by = nullptr;
67 }
68 }
69
70 ObjectSettings
get_settings()71 Climbable::get_settings()
72 {
73 new_size.x = m_col.m_bbox.get_width();
74 new_size.y = m_col.m_bbox.get_height();
75
76 ObjectSettings result = TriggerBase::get_settings();
77
78 // result.add_float(_("Width"), &new_size.x, "width");
79 // result.add_float(_("Height"), &new_size.y, "height");
80
81 result.add_translatable_text(_("Message"), &message, "message");
82
83 result.reorder({"message", "region", "x", "y"});
84
85 return result;
86 }
87
88 void
after_editor_set()89 Climbable::after_editor_set() {
90 m_col.m_bbox.set_size(new_size.x, new_size.y);
91 }
92
93 void
update(float)94 Climbable::update(float /*dt_sec*/)
95 {
96 if (!climbed_by) return;
97
98 if (!may_climb(*climbed_by)) {
99 climbed_by->stop_climbing(*this);
100 climbed_by = nullptr;
101 }
102 }
103
104 void
draw(DrawingContext & context)105 Climbable::draw(DrawingContext& context)
106 {
107 if (climbed_by && !message.empty()) {
108 context.push_transform();
109 context.set_translation(Vector(0, 0));
110 Vector pos = Vector(0, static_cast<float>(SCREEN_HEIGHT) / 2.0f - Resources::normal_font->get_height() / 2.0f);
111 context.color().draw_center_text(Resources::normal_font, _(message), pos, LAYER_HUD, Climbable::text_color);
112 context.pop_transform();
113 }
114 if (Editor::is_active() || g_debug.show_collision_rects) {
115 context.color().draw_filled_rect(m_col.m_bbox, Color(1.0f, 1.0f, 0.0f, 0.6f),
116 0.0f, LAYER_OBJECTS);
117 }
118 }
119
120 void
event(Player & player,EventType type)121 Climbable::event(Player& player, EventType type)
122 {
123 if ((type == EVENT_ACTIVATE) || (activate_try_timer.started())) {
124 if (player.get_grabbed_object() == nullptr){
125 if (may_climb(player)) {
126 climbed_by = &player;
127 player.start_climbing(*this);
128 activate_try_timer.stop();
129 } else {
130 if (type == EVENT_ACTIVATE) activate_try_timer.start(ACTIVATE_TRY_FOR);
131 // the "-13" to y velocity prevents Tux from walking in place on the ground for horizonal adjustments
132 if (player.get_bbox().get_left() < m_col.m_bbox.get_left() - GRACE_DX) player.add_velocity(Vector(POSITION_FIX_AX,-13));
133 if (player.get_bbox().get_right() > m_col.m_bbox.get_right() + GRACE_DX) player.add_velocity(Vector(-POSITION_FIX_AX,-13));
134 if (player.get_bbox().get_top() < m_col.m_bbox.get_top() - GRACE_DY) player.add_velocity(Vector(0,POSITION_FIX_AY));
135 if (player.get_bbox().get_bottom() > m_col.m_bbox.get_bottom() + GRACE_DY) player.add_velocity(Vector(0,-POSITION_FIX_AY));
136 }
137 }
138 }
139 if (type == EVENT_LOSETOUCH) {
140 player.stop_climbing(*this);
141 climbed_by = nullptr;
142 }
143 }
144
145 bool
may_climb(Player & player) const146 Climbable::may_climb(Player& player) const
147 {
148 if (player.get_bbox().get_left() < m_col.m_bbox.get_left() - GRACE_DX) return false;
149 if (player.get_bbox().get_right() > m_col.m_bbox.get_right() + GRACE_DX) return false;
150 if (player.get_bbox().get_top() < m_col.m_bbox.get_top() - GRACE_DY) return false;
151 if (player.get_bbox().get_bottom() > m_col.m_bbox.get_bottom() + GRACE_DY) return false;
152 return true;
153 }
154
155 /* EOF */
156