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1 /*
2 Minetest
3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
4 Copyright (C) 2018 nerzhul, Loic Blot <loic.blot@unix-experience.fr>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (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 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License along
17 with this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21 #include "gameui.h"
22 #include <irrlicht_changes/static_text.h>
23 #include <gettext.h>
24 #include "gui/mainmenumanager.h"
25 #include "gui/guiChatConsole.h"
26 #include "util/pointedthing.h"
27 #include "client.h"
28 #include "clientmap.h"
29 #include "fontengine.h"
30 #include "nodedef.h"
31 #include "profiler.h"
32 #include "renderingengine.h"
33 #include "version.h"
34
35 inline static const char *yawToDirectionString(int yaw)
36 {
37         static const char *direction[4] =
38                 {"North +Z", "West -X", "South -Z", "East +X"};
39
40         yaw = wrapDegrees_0_360(yaw);
41         yaw = (yaw + 45) % 360 / 90;
42
43         return direction[yaw];
44 }
45
46 GameUI::GameUI()
47 {
48         if (guienv && guienv->getSkin())
49                 m_statustext_initial_color = guienv->getSkin()->getColor(gui::EGDC_BUTTON_TEXT);
50         else
51                 m_statustext_initial_color = video::SColor(255, 0, 0, 0);
52
53 }
54 void GameUI::init()
55 {
56         // First line of debug text
57         m_guitext = gui::StaticText::add(guienv, utf8_to_wide(PROJECT_NAME_C).c_str(),
58                 core::rect<s32>(0, 0, 0, 0), false, false, guiroot);
59
60         // Second line of debug text
61         m_guitext2 = gui::StaticText::add(guienv, L"", core::rect<s32>(0, 0, 0, 0), false,
62                 false, guiroot);
63
64         // At the middle of the screen
65         // Object infos are shown in this
66         m_guitext_info = gui::StaticText::add(guienv, L"",
67                 core::rect<s32>(0, 0, 400, g_fontengine->getTextHeight() * 5 + 5)
68                         + v2s32(100, 200), false, true, guiroot);
69
70         // Status text (displays info when showing and hiding GUI stuff, etc.)
71         m_guitext_status = gui::StaticText::add(guienv, L"<Status>",
72                 core::rect<s32>(0, 0, 0, 0), false, false, guiroot);
73         m_guitext_status->setVisible(false);
74
75         // Chat text
76         m_guitext_chat = gui::StaticText::add(guienv, L"", core::rect<s32>(0, 0, 0, 0),
77                 //false, false); // Disable word wrap as of now
78                 false, true, guiroot);
79
80         // Profiler text (size is updated when text is updated)
81         m_guitext_profiler = gui::StaticText::add(guienv, L"<Profiler>",
82                 core::rect<s32>(0, 0, 0, 0), false, false, guiroot);
83         m_guitext_profiler->setOverrideFont(g_fontengine->getFont(
84                 g_fontengine->getDefaultFontSize() * 0.9f, FM_Mono));
85         m_guitext_profiler->setBackgroundColor(video::SColor(120, 0, 0, 0));
86         m_guitext_profiler->setVisible(false);
87 }
88
89 void GameUI::update(const RunStats &stats, Client *client, MapDrawControl *draw_control,
90         const CameraOrientation &cam, const PointedThing &pointed_old,
91         const GUIChatConsole *chat_console, float dtime)
92 {
93         v2u32 screensize = RenderingEngine::get_instance()->getWindowSize();
94
95         if (m_flags.show_debug) {
96                 static float drawtime_avg = 0;
97                 drawtime_avg = drawtime_avg * 0.95 + stats.drawtime * 0.05;
98                 u16 fps = 1.0 / stats.dtime_jitter.avg;
99
100                 std::ostringstream os(std::ios_base::binary);
101                 os << std::fixed
102                         << PROJECT_NAME_C " " << g_version_hash
103                         << " | FPS: " << fps
104                         << std::setprecision(0)
105                         << " | drawtime: " << drawtime_avg << "ms"
106                         << std::setprecision(1)
107                         << " | dtime jitter: "
108                         << (stats.dtime_jitter.max_fraction * 100.0) << "%"
109                         << std::setprecision(1)
110                         << " | view range: "
111                         << (draw_control->range_all ? "All" : itos(draw_control->wanted_range))
112                         << std::setprecision(3)
113                         << " | RTT: " << client->getRTT() << "s";
114                 setStaticText(m_guitext, utf8_to_wide(os.str()).c_str());
115
116                 m_guitext->setRelativePosition(core::rect<s32>(5, 5, screensize.X,
117                         5 + g_fontengine->getTextHeight()));
118         }
119
120         // Finally set the guitext visible depending on the flag
121         m_guitext->setVisible(m_flags.show_debug);
122
123         if (m_flags.show_debug) {
124                 LocalPlayer *player = client->getEnv().getLocalPlayer();
125                 v3f player_position = player->getPosition();
126
127                 std::ostringstream os(std::ios_base::binary);
128                 os << std::setprecision(1) << std::fixed
129                         << "pos: (" << (player_position.X / BS)
130                         << ", " << (player_position.Y / BS)
131                         << ", " << (player_position.Z / BS)
132                         << ") | yaw: " << (wrapDegrees_0_360(cam.camera_yaw)) << "° "
133                         << yawToDirectionString(cam.camera_yaw)
134                         << " | pitch: " << (-wrapDegrees_180(cam.camera_pitch)) << "°"
135                         << " | seed: " << ((u64)client->getMapSeed());
136
137                 if (pointed_old.type == POINTEDTHING_NODE) {
138                         ClientMap &map = client->getEnv().getClientMap();
139                         const NodeDefManager *nodedef = client->getNodeDefManager();
140                         MapNode n = map.getNode(pointed_old.node_undersurface);
141
142                         if (n.getContent() != CONTENT_IGNORE && nodedef->get(n).name != "unknown") {
143                                 os << ", pointed: " << nodedef->get(n).name
144                                         << ", param2: " << (u64) n.getParam2();
145                         }
146                 }
147
148                 setStaticText(m_guitext2, utf8_to_wide(os.str()).c_str());
149
150                 m_guitext2->setRelativePosition(core::rect<s32>(5,
151                         5 + g_fontengine->getTextHeight(), screensize.X,
152                         5 + g_fontengine->getTextHeight() * 2
153                 ));
154         }
155
156         m_guitext2->setVisible(m_flags.show_debug);
157
158         setStaticText(m_guitext_info, translate_string(m_infotext).c_str());
159         m_guitext_info->setVisible(m_flags.show_hud && g_menumgr.menuCount() == 0);
160
161         static const float statustext_time_max = 1.5f;
162
163         if (!m_statustext.empty()) {
164                 m_statustext_time += dtime;
165
166                 if (m_statustext_time >= statustext_time_max) {
167                         clearStatusText();
168                         m_statustext_time = 0.0f;
169                 }
170         }
171
172         setStaticText(m_guitext_status, translate_string(m_statustext).c_str());
173         m_guitext_status->setVisible(!m_statustext.empty());
174
175         if (!m_statustext.empty()) {
176                 s32 status_width  = m_guitext_status->getTextWidth();
177                 s32 status_height = m_guitext_status->getTextHeight();
178                 s32 status_y = screensize.Y - 150;
179                 s32 status_x = (screensize.X - status_width) / 2;
180
181                 m_guitext_status->setRelativePosition(core::rect<s32>(status_x ,
182                         status_y - status_height, status_x + status_width, status_y));
183
184                 // Fade out
185                 video::SColor final_color = m_statustext_initial_color;
186                 final_color.setAlpha(0);
187                 video::SColor fade_color = m_statustext_initial_color.getInterpolated_quadratic(
188                         m_statustext_initial_color, final_color, m_statustext_time / statustext_time_max);
189                 m_guitext_status->setOverrideColor(fade_color);
190                 m_guitext_status->enableOverrideColor(true);
191         }
192
193         // Hide chat when console is visible
194         m_guitext_chat->setVisible(isChatVisible() && !chat_console->isVisible());
195 }
196
197 void GameUI::initFlags()
198 {
199         m_flags = GameUI::Flags();
200         m_flags.show_debug = g_settings->getBool("show_debug");
201 }
202
203 void GameUI::showMinimap(bool show)
204 {
205         m_flags.show_minimap = show;
206 }
207
208 void GameUI::showTranslatedStatusText(const char *str)
209 {
210         const wchar_t *wmsg = wgettext(str);
211         showStatusText(wmsg);
212         delete[] wmsg;
213 }
214
215 void GameUI::setChatText(const EnrichedString &chat_text, u32 recent_chat_count)
216 {
217         setStaticText(m_guitext_chat, chat_text);
218
219         // Update gui element size and position
220         s32 chat_y = 5;
221
222         if (m_flags.show_debug)
223                 chat_y += 2 * g_fontengine->getLineHeight();
224
225         // first pass to calculate height of text to be set
226         const v2u32 &window_size = RenderingEngine::get_instance()->getWindowSize();
227         s32 width = std::min(g_fontengine->getTextWidth(chat_text.c_str()) + 10,
228                 window_size.X - 20);
229         m_guitext_chat->setRelativePosition(core::rect<s32>(10, chat_y, width,
230                 chat_y + window_size.Y));
231
232         // now use real height of text and adjust rect according to this size
233         m_guitext_chat->setRelativePosition(core::rect<s32>(10, chat_y, width,
234                 chat_y + m_guitext_chat->getTextHeight()));
235
236         m_recent_chat_count = recent_chat_count;
237 }
238
239 void GameUI::updateProfiler()
240 {
241         if (m_profiler_current_page != 0) {
242                 std::ostringstream os(std::ios_base::binary);
243                 os << "   Profiler page " << (int)m_profiler_current_page <<
244                                 ", elapsed: " << g_profiler->getElapsedMs() << " ms)" << std::endl;
245
246                 int lines = g_profiler->print(os, m_profiler_current_page, m_profiler_max_page);
247                 ++lines;
248
249                 std::wstring text = utf8_to_wide(os.str());
250                 setStaticText(m_guitext_profiler, text.c_str());
251
252                 core::dimension2d<u32> size = m_guitext_profiler->getOverrideFont()->
253                                 getDimension(text.c_str());
254                 core::position2di upper_left(6, 50);
255                 core::position2di lower_right = upper_left;
256                 lower_right.X += size.Width + 10;
257                 lower_right.Y += size.Height; 
258
259                 m_guitext_profiler->setRelativePosition(core::rect<s32>(upper_left, lower_right));
260         }
261
262         m_guitext_profiler->setVisible(m_profiler_current_page != 0);
263 }
264
265 void GameUI::toggleChat()
266 {
267         m_flags.show_chat = !m_flags.show_chat;
268         if (m_flags.show_chat)
269                 showTranslatedStatusText("Chat shown");
270         else
271                 showTranslatedStatusText("Chat hidden");
272 }
273
274 void GameUI::toggleHud()
275 {
276         m_flags.show_hud = !m_flags.show_hud;
277         if (m_flags.show_hud)
278                 showTranslatedStatusText("HUD shown");
279         else
280                 showTranslatedStatusText("HUD hidden");
281 }
282
283 void GameUI::toggleProfiler()
284 {
285         m_profiler_current_page = (m_profiler_current_page + 1) % (m_profiler_max_page + 1);
286
287         // FIXME: This updates the profiler with incomplete values
288         updateProfiler();
289
290         if (m_profiler_current_page != 0) {
291                 wchar_t buf[255];
292                 const wchar_t* str = wgettext("Profiler shown (page %d of %d)");
293                 swprintf(buf, sizeof(buf) / sizeof(wchar_t), str,
294                         m_profiler_current_page, m_profiler_max_page);
295                 delete[] str;
296                 showStatusText(buf);
297         } else {
298                 showTranslatedStatusText("Profiler hidden");
299         }
300 }
301
302
303 void GameUI::deleteFormspec()
304 {
305         if (m_formspec) {
306                 m_formspec->drop();
307                 m_formspec = nullptr;
308         }
309
310         m_formname.clear();
311 }