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 "config.h"
  13
  14 #include <stdexcept>
  15
  16 #include <moof/log.hh>
  17 #include <moof/math.hh>
  18 #include <moof/opengl.hh>
  19 #include <moof/settings.hh>
  20 #include <moof/video.hh>
  21
  22 #include "GameLayer.hh"
  23
  24
  25 void GameLayer::loadSceneLoader()
  26 {
  27         state_.script.import_standard_libraries();
  28         moof::log::import(state_.script);
  29
  30         std::string path = moof::resource::find_file("scenes/loader.lua");
  31         if (path.empty())
  32         {
  33                 throw std::runtime_error("cannot find scene loader script");
  34         }
  35
  36         moof::script::status status = state_.script.do_file(path);
  37         if (status != moof::script::success)
  38         {
  39                 std::string str;
  40                 state_.script[-1].get(str);
  41                 throw std::runtime_error("script error: " + str);
  42         }
  43
  44         state_.script.globals().push_field("scenes");
  45         state_.script.top().get(state_.sceneList);
  46         if (state_.sceneList.size() == 0)
  47         {
  48                 throw std::runtime_error("no variable `scenes' in script loader.");
  49         }
  50 }
  51
  52 void GameLayer::advanceScene(moof::settings& settings)
  53 {
  54         if (state_.sceneList.size() != 0)
  55         {
  56                 state_.scene = Scene::alloc(state_.sceneList[0]);
  57                 state_.sceneList.erase(state_.sceneList.begin());
  58
  59                 moof::script::status status = state_.scene->load(settings,
  60                                                                                                            state_.script);
  61                 if (status != moof::script::success)
  62                 {
  63                         std::string str;
  64                         state_.script[-1].get(str);
  65                         throw std::runtime_error("script error: " + str);
  66                 }
  67
  68                 moof::script::slot table = state_.script.globals().push_field("Event");
  69                 if (table.is_table())
  70                 {
  71                         state_.script.push("Think");
  72                         table.push_field("Think");
  73                         state_.script.registry().set_field();
  74                 }
  75                 state_.script.pop();
  76         }
  77 }
  78
  79
  80 GameLayer::GameLayer()
  81 {
  82         moof::log_info("about to load sound resource...");
  83         music_.sample("sounds/NightFusionIntro.ogg");
  84         music_.loop(true);
  85         music_.enqueue("sounds/NightFusionLoop.ogg");
  86         music_.position(moof::vector3(10.0, 5.0, 0.0));
  87
  88         mThinkTimer.init(boost::bind(&GameLayer::thinkTimer, this),
  89                         0.1, moof::timer::repeat);
  90
  91         state_.heroine = Heroine::alloc();
  92         state_.heroine->animation.startSequence("FlyDiagonallyUp");
  93
  94         state_.interp.init(0.0, 1.0, 4.0, moof::lerp_scalar::oscillate);
  95
  96         sceneMesh = moof::resource::load("classic.ac");
  97 }
  98
  99
 100 void GameLayer::did_add_to_view()
 101 {
 102         bool isMute = false;
 103         settings().get("nomusic", isMute);
 104         music_.stream();
 105
 106         loadSceneLoader();
 107         advanceScene(settings());               // load the first scene
 108
 109         mHud = Hud::alloc(state_);
 110         add_child(mHud);
 111
 112         mRay.direction.set(1.0, 0.0);
 113
 114         mLine.a.set(20, 10);
 115         mLine.b.set(19, 14);
 116
 117         mCircle.point.set(22, 5);
 118         mCircle.radius = 2;
 119
 120         mRayTimer.init(boost::bind(&GameLayer::rayTimer, this),
 121                                    1.0, moof::timer::repeat);
 122
 123         projection();
 124 }
 125
 126
 127 void GameLayer::update(moof::scalar t, moof::scalar dt)
 128 {
 129         if (!state_.scene) return;
 130         state_.camera.update(t, dt);
 131         state_.heroine->update(t, dt);
 132
 133         state_.scene->checkForCollision(*state_.heroine);
 134
 135         moof::vector3 cam= -moof::promote(state_.heroine->state().position, 8);
 136         state_.camera.position(cam);
 137
 138         mRay.point = state_.heroine->state().position;
 139
 140         moof::view::update(t, dt);
 141 }
 142
 143 void GameLayer::thinkTimer()
 144 {
 145         state_.script.registry().push_field("Think");
 146         if (state_.script[-1].is_function()) state_.script.call();
 147         else                                state_.script.pop();
 148 }
 149
 150
 151 void GameLayer::rayTimer()
 152 {
 153         moof::ray2::contact meh;
 154         std::list<moof::ray2::contact> hits;
 155         moof::vector2 point;
 156
 157         bool bam = mLine.intersect_ray(mRay, meh);
 158         if (bam)
 159         {
 160                 //meh.normal.normalize();
 161                 //hits.push_back(meh);
 162                 mRay.solve(point, meh.distance);
 163                 moof::log_info << "line: d = " << meh.distance << std::endl;
 164                 moof::log_info << "      P = " << point << std::endl;
 165                 moof::log_info << "      n = " << meh.normal << std::endl;
 166         }
 167
 168         bam = mCircle.intersect_ray(mRay, meh);
 169         if (bam)
 170         {
 171                 meh.normal.normalize();
 172                 hits.push_back(meh);
 173         }
 174
 175         if (state_.scene->castRay(mRay, hits))
 176         {
 177                 hits.front().normal.normalize();
 178                 mRay.solve(point, hits.front().distance);
 179                 moof::log_info << "scene: d = " << hits.front().distance << std::endl;
 180                 moof::log_info << "       P = " << point << std::endl;
 181                 moof::log_info << "       n = " << hits.front().normal << std::endl;
 182         }
 183 }
 184
 185
 186 void GameLayer::draw(moof::scalar alpha) const
 187 {
 188         if (!state_.scene) return;
 189         state_.camera.upload_to_gl(alpha);
 190
 191         float pos[] = {state_.heroine->state().position[0],
 192                                    state_.heroine->state().position[1], 0.0f};
 193         glLightfv(GL_LIGHT0, GL_POSITION, pos);
 194
 195         // DRAW THE SCENE
 196         moof::image::reset_binding();
 197
 198         glEnableClientState(GL_VERTEX_ARRAY);
 199         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 200
 201         //state_.scene->draw_if_visible(alpha, state_.camera.frustum());
 202         sceneMesh->draw(alpha);
 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                                 punch_sound_.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