Dogcows Code - chaz/yoink/blob - src/Main.cc

   1
   2 /*]  Copyright (c) 2009-2010, Charles McGarvey  [**************************
   3 **]  All rights reserved.
   4 *
   5 * vi:ts=4 sw=4 tw=75
   6 *
   7 * Distributable under the terms and conditions of the 2-clause BSD license;
   8 * see the file COPYING for a complete text of the license.
   9 *
  10 **************************************************************************/
  11
  12 #include <cstdlib>              // atexit, getenv
  13 #include <functional>
  14 #include <iostream>
  15 #include <string>
  16 #include <unistd.h>             // access
  17
  18 #include <Moof/Log.hh>
  19 #include <Moof/ModalDialog.hh>
  20 #include <Moof/OpenGL.hh>
  21 #include <Moof/Resource.hh>
  22 #include <Moof/Settings.hh>
  23 #include <Moof/Video.hh>
  24
  25 #include "ErrorHandler.hh"
  26 #include "GameLayer.hh"
  27 #include "Main.hh"
  28 #include "TitleLayer.hh"
  29
  30 #if HAVE_CONFIG_H
  31 #include "config.h"
  32 #endif
  33 #include "version.h"
  34
  35
  36 Main::Main(Mf::Settings& settings, Mf::Video& video) :
  37         Mf::View(settings, video)
  38 {
  39         Mf::Dispatch& dispatch = Mf::Dispatch::global();
  40         mNewContextDispatch = dispatch.addTarget("video.newcontext",
  41                                                                                          boost::bind(&Main::setupGL));
  42         setupGL();
  43
  44         addChild(TitleLayer::alloc());
  45 }
  46
  47
  48 void Main::update(Mf::Scalar t, Mf::Scalar dt)
  49 {
  50         if (children().size() == 0)
  51         {
  52                 Mf::logWarning("main view has no children");
  53                 stop();
  54                 return;
  55         }
  56
  57         Mf::View::update(t, dt);
  58 }
  59
  60 void Main::draw(Mf::Scalar alpha) const
  61 {
  62         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  63
  64         glMatrixMode(GL_PROJECTION);
  65         glLoadIdentity();
  66
  67         glMatrixMode(GL_MODELVIEW);
  68         glLoadIdentity();
  69
  70         Mf::View::draw(alpha);
  71 }
  72
  73 bool Main::handleEvent(const Mf::Event& event)
  74 {
  75         if (Mf::View::handleEvent(event)) return true;
  76
  77         switch (event.type)
  78         {
  79                 case SDL_KEYUP:
  80                         if (event.key.keysym.sym == SDLK_f)
  81                         {
  82                                 video().toggleFull();
  83                         }
  84                         else if (event.key.keysym.sym == SDLK_l)
  85                         {
  86                                 video().toggleCursorGrab();
  87                                 video().toggleCursorVisible();
  88                         }
  89                         break;
  90
  91                 case SDL_VIDEORESIZE:
  92                         glViewport(0, 0, event.resize.w, event.resize.h);
  93                         break;
  94
  95                 case SDL_QUIT:
  96                         stop();
  97                         return true;
  98         }
  99
 100         return false;
 101 }
 102
 103
 104 std::string Main::getSearchPath()
 105 {
 106         // Add search paths; they should be searched in this order:
 107         // 1. YOINK_DATADIR (environment)
 108         // 2. YOINK_DATADIR (configure)
 109
 110         std::string path;
 111
 112         char* dataDir = getenv("YOINK_DATADIR");
 113         if (dataDir)
 114         {
 115                 path += dataDir;
 116                 path += ":";
 117         }
 118         path += YOINK_DATADIR;
 119
 120         return path;
 121 }
 122
 123 std::string Main::getConfigPath()
 124 {
 125         // Build the list of config files to search for, in this order:
 126         // 1. YOINK_DATADIR/yoinkrc
 127         // 2. /etc/yoinkrc (not for Windows)
 128         // 3. $HOME/.yoinkrc
 129         // 4. YOINKRC (environment)
 130
 131         std::string path = Mf::Resource::getPath("yoinkrc");
 132
 133 #if !defined(_WIN32)
 134         path += ":/etc/yoinkrc";
 135 #endif
 136         path += ":$HOME/.yoinkrc";
 137
 138         char* configFile = getenv("YOINKRC");
 139         if (configFile)
 140         {
 141                 path += ":";
 142                 path += configFile;
 143         }
 144
 145         return path;
 146 }
 147
 148
 149 void Main::setupGL()
 150 {
 151         glEnable(GL_TEXTURE_2D);
 152         glEnable(GL_DEPTH_TEST);
 153
 154         glEnable(GL_LINE_SMOOTH);
 155         glEnable(GL_POLYGON_SMOOTH);
 156         glShadeModel(GL_SMOOTH);
 157
 158         //glEnable(GL_BLEND);
 159         //glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 160         glEnable(GL_ALPHA_TEST);
 161         glAlphaFunc(GL_GREATER, 0.0);
 162
 163         glClearColor(0.0, 0.0, 0.0, 1.0);
 164
 165         //glMatrixMode(GL_PROJECTION);
 166         //glLoadIdentity();
 167         //Mf::Scalar ratio = Mf::core.getVideo()->getWidth() /
 168                 //Mf::core.getVideo()->getHeight();
 169         //gluPerspective(60.0, ratio, 1.0, 250.0);
 170
 171         //glMatrixMode(GL_MODELVIEW);
 172 }
 173
 174
 175 void Main::printUsage()
 176 {
 177         std::cout << "Usage: "
 178                           << PACKAGE" [-h|--help] [-i|--info] [OPTION=VALUE]..."
 179                           << std::endl
 180                           << "The alien-smashing action game." << std::endl
 181                           << std::endl
 182                           << "Options:" << std::endl
 183                           << "  -h, --help" << std::endl
 184                           << "      show this help and exit" << std::endl
 185                           << "  -i, --info" << std::endl
 186                           << "      show version and build information" << std::endl
 187                           << "  detail=1|2|3" << std::endl
 188                           << "      the level of detail of game scenes" << std::endl
 189                           << "  fullscreen=true|false" << std::endl
 190                           << "      if true, uses the entire display" << std::endl
 191                           << "  framerate=num" << std::endl
 192                           << "      number of frames to draw per second" << std::endl
 193                           << std::endl
 194                           << "See documentation for more options." << std::endl;
 195 }
 196
 197 void Main::printInfo(int argc, char* argv[])
 198 {
 199         std::string assets;
 200         std::string datadir;
 201         std::string config;
 202
 203         assets.assign(YOINK_DATADIR);
 204         int accessible = access(assets.c_str(), R_OK);
 205         if (accessible != 0) assets += " (no access)";
 206
 207         char* temp = getenv("YOINK_DATADIR");
 208         if (temp)
 209         {
 210                 datadir = temp;
 211                 accessible = access(temp, R_OK);
 212                 if (accessible != 0) datadir += " (no access)";
 213         }
 214
 215         temp = getenv("YOINKRC");
 216         if (temp)
 217         {
 218                 config = temp;
 219                 accessible = access(temp, R_OK);
 220                 if (accessible != 0) config += " (no access)";
 221         }
 222
 223         std::cout << "   Executable: " << argv[0] << std::endl
 224                           << "      Version: "VERSION << std::endl
 225                           << "        Built: " << COMPILE_TIME << std::endl
 226                           << "     Compiler: "COMPILER_STRING << std::endl
 227                           << "       Assets: " << assets << std::endl
 228                           << "Build options: "
 229 #ifdef NDEBUG
 230                           << "-"
 231 #endif
 232                           << "debug "
 233 #ifndef USE_DOUBLE_PRECISION
 234                           << "-"
 235 #endif
 236                           << "double-precision "
 237 #ifndef USE_GTK
 238                           << "-"
 239 #endif
 240                           << "gtk "
 241 #ifndef PROFILING_ENABLED
 242                           << "-"
 243 #endif
 244                           << "profile "
 245 #ifndef USE_QT4
 246                           << "-"
 247 #endif
 248                           << "qt4 "
 249 #ifndef USE_THREADS
 250                           << "-"
 251 #endif
 252                           << "threads" << std::endl
 253                           << "      YOINKRC: " << config << std::endl
 254                           << "YOINK_DATADIR: " << datadir << std::endl;
 255 }
 256
 257
 258 void hello()
 259 {
 260         std::cout << std::endl << PACKAGE_STRING << std::endl
 261                           << "Compiled " << __TIME__ " " __DATE__ << std::endl
 262                           << "Send patches and bug reports to <"
 263                           PACKAGE_BUGREPORT << ">." << std::endl << std::endl;
 264 }
 265
 266 void goodbye()
 267 {
 268         std::cout << std::endl << "Goodbye..." << std::endl << std::endl;
 269 }
 270
 271
 272 int main(int argc, char* argv[])
 273 {
 274         if (argc > 1)
 275         {
 276                 std::string arg(argv[1]);
 277                 if (arg == "-h" || arg == "--help")
 278                 {
 279                         Main::printUsage();
 280                         return 0;
 281                 }
 282                 else if (arg == "-i" || arg == "--info")
 283                 {
 284                         Main::printInfo(argc, argv);
 285                         return 0;
 286                 }
 287         }
 288
 289         hello();
 290         atexit(goodbye);
 291
 292         Mf::Resource::addSearchPaths(Main::getSearchPath());
 293
 294         Mf::Settings settings(argc, argv, Main::getConfigPath());
 295
 296         Mf::Log::Level logLevel = Mf::Log::INFO;
 297         settings.get("loglevel", logLevel);
 298         Mf::Log::setLevel(logLevel);
 299
 300         try
 301         {
 302                 Mf::Video::Attributes attributes(settings);
 303                 attributes.caption = PACKAGE_STRING;
 304                 attributes.icon = Mf::Resource::getPath(PACKAGE".png");
 305
 306                 Mf::Video       video(attributes);
 307                 Main            mainView(settings, video);
 308
 309                 mainView.run();
 310                 return 0;
 311         }
 312         catch (const Mf::Error& error)
 313         {
 314                 Mf::ModalDialog dialog(Mf::ModalDialog::CRITICAL,
 315                                                            PACKAGE_STRING, "Unhandled Exception",
 316                                                            getErrorString(error));
 317
 318                 dialog.run();
 319                 return 1;
 320         }
 321 }
 322