Dogcows Code - chaz/yoink/blob - src/GameLayer.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 <stdexcept>
  13
  14 #include <moof/log.hh>
  15 #include <moof/math.hh>
  16 #include <moof/opengl.hh>
  17 #include <moof/settings.hh>
  18 #include <moof/video.hh>
  19
  20 #include "GameLayer.hh"
  21
  22 #if HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25
  26
  27 void GameLayer::loadSceneLoader()
  28 {
  29         state_.script.import_standard_libraries();
  30         moof::log::import(state_.script);
  31
  32         std::string path("loader");
  33         if (!moof::resource::find(path))
  34         {
  35                 throw std::runtime_error("cannot find scene loader script");
  36         }
  37
  38         moof::script::status status = state_.script.do_file(path);
  39         if (status != moof::script::success)
  40         {
  41                 std::string str;
  42                 state_.script[-1].get(str);
  43                 throw std::runtime_error("script error: " + str);
  44         }
  45
  46         state_.script.globals().push_field("scenes");
  47         state_.script.top().get(state_.sceneList);
  48         if (state_.sceneList.size() == 0)
  49         {
  50                 throw std::runtime_error("no variable `scenes' in script loader.");
  51         }
  52 }
  53
  54 void GameLayer::advanceScene(moof::settings& settings)
  55 {
  56         if (state_.sceneList.size() != 0)
  57         {
  58                 state_.scene = Scene::alloc(state_.sceneList[0]);
  59                 state_.sceneList.erase(state_.sceneList.begin());
  60
  61                 moof::script::status status = state_.scene->load(settings,
  62                                                                                                            state_.script);
  63                 if (status != moof::script::success)
  64                 {
  65                         std::string str;
  66                         state_.script[-1].get(str);
  67                         throw std::runtime_error("script error: " + str);
  68                 }
  69
  70                 moof::script::slot table = state_.script.globals().push_field("Event");
  71                 if (table.is_table())
  72                 {
  73                         state_.script.push("Think");
  74                         table.push_field("Think");
  75                         state_.script.registry().set_field();
  76                 }
  77                 state_.script.pop();
  78         }
  79 }
  80
  81
  82 GameLayer::GameLayer()
  83 {
  84         moof::log_info("about to load sound resource...");
  85         music_ = moof::resource::load("sounds/NightFusionIntro.ogg");
  86         if (music_)
  87         {
  88                 music_->loop(true);
  89                 music_->enqueue("NightFusionLoop");
  90         }
  91         else moof::log_error("music not loaded");
  92
  93         //music_->position(moof::vector3(10.0, 5.0, 0.0));
  94
  95         mThinkTimer.init(boost::bind(&GameLayer::thinkTimer, this),
  96                         0.1, moof::timer::repeat);
  97
  98         state_.heroine = Heroine::alloc();
  99         state_.heroine->animation.startSequence("FlyDiagonallyUp");
 100
 101         state_.interp.init(0.0, 1.0, 4.0, moof::lerp_scalar::oscillate);
 102 }
 103
 104
 105 void GameLayer::did_add_to_view()
 106 {
 107         bool isMute = false;
 108         settings().get("nomusic", isMute);
 109         if (!isMute) music_->play();
 110
 111         loadSceneLoader();
 112         advanceScene(settings());               // load the first scene
 113
 114         mHud = Hud::alloc(state_);
 115         add_child(mHud);
 116
 117         mRay.direction.set(1.0, 0.0);
 118
 119         mLine.a.set(20, 10);
 120         mLine.b.set(19, 14);
 121
 122         mCircle.point.set(22, 5);
 123         mCircle.radius = 2;
 124
 125         mRayTimer.init(boost::bind(&GameLayer::rayTimer, this),
 126                                    1.0, moof::timer::repeat);
 127
 128         projection();
 129 }
 130
 131
 132 void GameLayer::update(moof::scalar t, moof::scalar dt)
 133 {
 134         if (!state_.scene) return;
 135         state_.camera.update(t, dt);
 136         state_.heroine->update(t, dt);
 137
 138         state_.scene->checkForCollision(*state_.heroine);
 139
 140         moof::vector3 cam= -moof::promote(state_.heroine->state().position, 8);
 141         state_.camera.position(cam);
 142
 143         mRay.point = state_.heroine->state().position;
 144
 145         moof::view::update(t, dt);
 146 }
 147
 148 void GameLayer::thinkTimer()
 149 {
 150         state_.script.registry().push_field("Think");
 151         if (state_.script[-1].is_function()) state_.script.call();
 152         else                                state_.script.pop();
 153 }
 154
 155
 156 void GameLayer::rayTimer()
 157 {
 158         moof::ray2::contact meh;
 159         std::list<moof::ray2::contact> hits;
 160         moof::vector2 point;
 161
 162         bool bam = mLine.intersect_ray(mRay, meh);
 163         if (bam)
 164         {
 165                 //meh.normal.normalize();
 166                 //hits.push_back(meh);
 167                 mRay.solve(point, meh.distance);
 168                 moof::log_info << "line: d = " << meh.distance << std::endl;
 169                 moof::log_info << "      P = " << point << std::endl;
 170                 moof::log_info << "      n = " << meh.normal << std::endl;
 171         }
 172
 173         bam = mCircle.intersect_ray(mRay, meh);
 174         if (bam)
 175         {
 176                 meh.normal.normalize();
 177                 hits.push_back(meh);
 178         }
 179
 180         if (state_.scene->castRay(mRay, hits))
 181         {
 182                 hits.front().normal.normalize();
 183                 mRay.solve(point, hits.front().distance);
 184                 moof::log_info << "scene: d = " << hits.front().distance << std::endl;
 185                 moof::log_info << "       P = " << point << std::endl;
 186                 moof::log_info << "       n = " << hits.front().normal << std::endl;
 187         }
 188 }
 189
 190
 191 void GameLayer::draw(moof::scalar alpha) const
 192 {
 193         if (!state_.scene) return;
 194         state_.camera.upload_to_gl(alpha);
 195
 196         // DRAW THE SCENE
 197         moof::texture::reset_binding();
 198
 199         glEnableClientState(GL_VERTEX_ARRAY);
 200         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 201
 202         state_.scene->draw_if_visible(alpha, state_.camera.frustum());
 203         state_.heroine->draw(alpha);
 204
 205         mRay.draw();
 206         mLine.draw();
 207         mCircle.draw();
 208
 209         moof::view::draw(alpha);
 210 }
 211
 212 bool GameLayer::handle_event(const moof::event& event)
 213 {
 214         if (moof::view::handle_event(event)) return true;
 215
 216         switch (event.type)
 217         {
 218                 case SDL_KEYDOWN:
 219                         if (event.key.keysym.sym == SDLK_SPACE)
 220                         {
 221                                 state_.heroine->animation.startSequence("Flattened");
 222                                 moof::log_info("thump!");
 223                                 //mPunchSound.play();
 224                                 return true;
 225                         }
 226                         else if (event.key.keysym.sym == SDLK_m)
 227                         {
 228                                 music_->toggle();
 229                                 return true;
 230                         }
 231                         else if (event.key.keysym.sym == SDLK_PAGEUP)
 232                         {
 233                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 234                                                                                                                 moof::rad(10.0));
 235                                 return true;
 236                         }
 237                         else if (event.key.keysym.sym == SDLK_PAGEDOWN)
 238                         {
 239                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 240                                                                                                                 moof::rad(-10.0));
 241                                 return true;
 242                         }
 243                         else if (event.key.keysym.sym == SDLK_r)
 244                         {
 245                                 loadSceneLoader();
 246                                 advanceScene(settings());
 247                                 return true;
 248                         }
 249                         return state_.heroine->handle_event(event);
 250
 251                 case SDL_KEYUP:
 252                         if (event.key.keysym.sym == SDLK_ESCAPE)
 253                         {
 254                                 parent().remove_child(this);
 255                                 return true;
 256                         }
 257                         else if (event.key.keysym.sym == SDLK_h)
 258                         {
 259                                 add_child(mHud);
 260                                 return true;
 261                         }
 262                         return state_.heroine->handle_event(event);
 263
 264                 case SDL_MOUSEMOTION:
 265                 case SDL_MOUSEBUTTONDOWN:
 266                         state_.camera.handle_event(event);
 267                         return true;
 268
 269                 case SDL_VIDEORESIZE:
 270                         projection(event.resize.w, event.resize.h);
 271                         break;
 272         }
 273
 274         return false;
 275 }
 276
 277
 278 void GameLayer::projection()
 279 {
 280         projection(video().width(), video().height());
 281 }
 282
 283 void GameLayer::projection(moof::scalar width, moof::scalar height)
 284 {
 285         state_.camera.projection(moof::rad(60.0),
 286                                                          width / height,
 287                                                          SCALAR(1.0), SCALAR(200.0));
 288 }
 289