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

   1
   2 /*******************************************************************************
   3
   4  Copyright (c) 2009, Charles McGarvey
   5  All rights reserved.
   6
   7  Redistribution   and   use  in  source  and  binary  forms,  with  or  without
   8  modification, are permitted provided that the following conditions are met:
   9
  10    * Redistributions  of  source  code  must retain the above copyright notice,
  11      this list of conditions and the following disclaimer.
  12    * Redistributions  in binary form must reproduce the above copyright notice,
  13      this  list of conditions and the following disclaimer in the documentation
  14      and/or other materials provided with the distribution.
  15
  16  THIS  SOFTWARE  IS  PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  AND  ANY  EXPRESS  OR  IMPLIED  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19  DISCLAIMED.  IN  NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  20  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  DAMAGES  (INCLUDING,  BUT  NOT  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  22  SERVICES;  LOSS  OF  USE,  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  23  CAUSED  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  OR  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26
  27 *******************************************************************************/
  28
  29 #include <cstdlib>              // atexit, getenv
  30 #include <cstring>
  31 #include <iostream>
  32 #include <string>
  33
  34 #include <Moof/Dispatcher.hh>
  35 #include <Moof/Exception.hh>
  36 #include <Moof/Log.hh>
  37 #include <Moof/OpenGL.hh>
  38 #include <Moof/Resource.hh>
  39 #include <Moof/Transition.hh>
  40 #include <Moof/Video.hh>
  41
  42 #include "GameLayer.hh"
  43 #include "MainLayer.hh"
  44 #include "TitleLayer.hh"
  45
  46 #if HAVE_CONFIG_H
  47 #include "config.h"
  48 #endif
  49
  50
  51 MainLayer::MainLayer()
  52 {
  53         Mf::dispatcher::addHandler("video.context_recreated",
  54                         boost::bind(&MainLayer::contextRecreated, this, _1), this);
  55         setupGL();
  56 }
  57
  58 MainLayer::~MainLayer()
  59 {
  60         Mf::dispatcher::removeHandler(this);
  61 }
  62
  63
  64 void MainLayer::pushed(Mf::Engine& e)
  65 {
  66         engine = &e;
  67
  68         //Mf::Scalar coeff[] = {0.0, 1.0};
  69         //Mf::Lerp interp(coeff, 0.25);
  70
  71         //Mf::LayerP gameLayer = GameLayer::alloc();
  72         //Mf::Transition<Mf::Lerp>::Ptr transition =
  73                 //Mf::Transition<Mf::Lerp>::alloc(gameLayer, Mf::LayerP(), interp);
  74         //engine->push(transition);
  75         //engine->push(GameLayer::alloc());
  76         engine->push(TitleLayer::alloc());
  77 }
  78
  79
  80 void MainLayer::draw(Mf::Scalar alpha) const
  81 {
  82         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  83
  84         glMatrixMode(GL_PROJECTION);
  85         glLoadIdentity();
  86
  87         glMatrixMode(GL_MODELVIEW);
  88         glLoadIdentity();
  89 }
  90
  91 bool MainLayer::handleEvent(const Mf::Event& event)
  92 {
  93         switch (event.type)
  94         {
  95                 case SDL_KEYDOWN:
  96                         if (event.key.keysym.sym == SDLK_ESCAPE)
  97                         {
  98                                 quit();
  99                         }
 100                         else if (event.key.keysym.sym == SDLK_f)
 101                         {
 102                                 engine->getVideo().toggleFull();
 103                         }
 104                         else if (event.key.keysym.sym == SDLK_l)
 105                         {
 106                                 Mf::Video& video = engine->getVideo();
 107                                 video.toggleCursorGrab();
 108                                 video.toggleCursorVisible();
 109                         }
 110                         else if (event.key.keysym.sym == SDLK_y)
 111                         {
 112                                 engine->push(GameLayer::alloc());
 113                         }
 114                         break;
 115
 116                 case SDL_VIDEORESIZE:
 117                         glViewport(0, 0, event.resize.w, event.resize.h);
 118                         break;
 119
 120                 case SDL_QUIT:
 121                         quit();
 122                         break;
 123         }
 124
 125         return false;
 126 }
 127
 128 void MainLayer::quit()
 129 {
 130 #if NDEBUG
 131         // we don't really need to unwind the stack and shut everything down because
 132         // the operating system will take care of cleaning up
 133         exit(0);
 134 #else
 135         engine->clear();
 136 #endif
 137 }
 138
 139
 140 void MainLayer::setupGL()
 141 {
 142         glEnable(GL_TEXTURE_2D);
 143         glEnable(GL_DEPTH_TEST);
 144
 145         glEnable(GL_LINE_SMOOTH);
 146         glEnable(GL_POLYGON_SMOOTH);
 147         glShadeModel(GL_SMOOTH);
 148
 149         //glEnable(GL_BLEND);
 150         //glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 151         glEnable(GL_ALPHA_TEST);
 152         glAlphaFunc(GL_GREATER, 0.0);
 153
 154         glClearColor(0.0, 0.0, 0.0, 1.0);
 155
 156         glMatrixMode(GL_PROJECTION);
 157         glLoadIdentity();
 158         gluPerspective(60.0, 1.33333, 1.0, 2500.0);
 159
 160         glMatrixMode(GL_MODELVIEW);
 161 }
 162
 163 void MainLayer::contextRecreated(const Mf::Notification* note)
 164 {
 165         // whenever the context is destroyed and a new one created, it probably
 166         // won't contain our state so we need to set that up again
 167         setupGL();
 168 }
 169
 170
 171
 172 void printUsage()
 173 {
 174         std::cout << "Usage: "PACKAGE" [-h|--help] [OPTION=VALUE]..." << std::endl
 175                           << "The alien-smashing action game." << std::endl
 176                           << std::endl
 177                           << "Options:" << std::endl
 178                           << "  -h, --help" << std::endl
 179                           << "      show this help and exit" << std::endl
 180                           << "  detail=1|2|3" << std::endl
 181                           << "      the level of detail of game scenes" << std::endl
 182                           << "  fullscreen=true|false" << std::endl
 183                           << "      if true, uses the entire display" << std::endl
 184                           << "  maxfps=num" << std::endl
 185                           << "      the maximum number of frames per second" << std::endl
 186                           << std::endl
 187                           << "See documentation for more options." << std::endl;
 188 }
 189
 190 void goodbye()
 191 {
 192         std::cout << std::endl << "Goodbye..." << std::endl << std::endl;
 193 }
 194
 195 int main(int argc, char* argv[])
 196 {
 197         if (argc > 1 &&
 198                         (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help") == 0))
 199         {
 200                 printUsage();
 201                 return 0;
 202         }
 203
 204         std::cout << std::endl << PACKAGE_STRING << std::endl
 205                           << "Compiled " << __TIME__ " " __DATE__ << std::endl
 206                           << "Send patches and bug reports to <"
 207                           PACKAGE_BUGREPORT << ">." << std::endl << std::endl;
 208
 209         atexit(goodbye);
 210
 211
 212 #if             YOINK_LOGLEVEL >= 4
 213         Mf::setLogLevel(Mf::LOG_DEBUG);
 214 #elif   YOINK_LOGLEVEL >= 3
 215         Mf::setLogLevel(Mf::LOG_INFO);
 216 #elif   YOINK_LOGLEVEL >= 2
 217         Mf::setLogLevel(Mf::LOG_SCRIPT);
 218 #elif   YOINK_LOGLEVEL >= 1
 219         Mf::setLogLevel(Mf::LOG_ERROR);
 220 #elif   YOINK_LOGLEVEL
 221         Mf::setLogLevel(Mf::LOG_NONE);
 222 #endif
 223
 224
 225         // Add search paths; they should be searched in this order:
 226         // 1. YOINK_DATADIR (environment)
 227         // 2. YOINK_DATADIR (configure)
 228
 229         char* dataDir = getenv("YOINK_DATADIR");
 230         if (dataDir)
 231         {
 232                 Mf::Resource::addSearchPath(dataDir);
 233         }
 234
 235         Mf::Resource::addSearchPath(YOINK_DATADIR);
 236
 237         std::string iconFile = Mf::Resource::getPath("yoink.png");
 238
 239
 240         // Build the list of config files to search for, in this order:
 241         // 1. YOINK_DATADIR/yoinkrc
 242         // 2. /etc/yoinkrc
 243         // 3. $HOME/.yoinkrc
 244         // 4. YOINKRC (environment)
 245
 246         std::string configFiles;
 247
 248         configFiles += Mf::Resource::getPath("yoinkrc");
 249         configFiles += ":/etc/yoinkrc:$HOME/.yoinkrc";
 250
 251         char* configFile = getenv("YOINKRC");
 252         if (configFile)
 253         {
 254                 configFiles += ":";
 255                 configFiles += configFile;
 256         }
 257
 258
 259         try
 260         {
 261                 Mf::Engine app(argc, argv, PACKAGE_STRING, iconFile, configFiles);
 262                 app.push(MainLayer::alloc());
 263
 264                 app.run();
 265         }
 266         catch (Mf::Exception e)
 267         {
 268                 Mf::logError("unhandled exception: <<%s>>", e.what());
 269                 Mf::logInfo("it's time to crash now :-(");
 270                 throw e;
 271         }
 272
 273         return 0;
 274 }
 275
 276
 277 /** vim: set ts=4 sw=4 tw=80: *************************************************/
 278