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/mesh.hh>
  19 #include <moof/opengl.hh>
  20 #include <moof/settings.hh>
  21 #include <moof/video.hh>
  22
  23 #include "GameLayer.hh"
  24
  25
  26 void GameLayer::loadSceneLoader()
  27 {
  28         state_.script.import_safe_standard_libraries();
  29         moof::log::import(state_.script);
  30         moof::mesh::import(state_.script, "yoink");
  31         moof::sound::import(state_.script, "yoink");
  32
  33         std::string path = moof::resource::find_file("scenes/loader.lua");
  34         if (path.empty())
  35         {
  36                 throw std::runtime_error("cannot find scene loader script");
  37         }
  38
  39         moof::script::status status = state_.script.do_file(path);
  40         if (status != moof::script::success)
  41         {
  42                 std::string str;
  43                 state_.script[-1].get(str);
  44                 throw std::runtime_error("script error: " + str);
  45         }
  46
  47         state_.script.globals().push_field("scenes");
  48         state_.script.top().get(state_.sceneList);
  49         if (state_.sceneList.size() == 0)
  50         {
  51                 throw std::runtime_error("no variable `scenes' in script loader");
  52         }
  53 }
  54
  55 void GameLayer::advanceScene(moof::settings& settings)
  56 {
  57         if (state_.sceneList.size() != 0)
  58         {
  59                 state_.scene = Scene::alloc(state_.sceneList[0]);
  60                 state_.sceneList.erase(state_.sceneList.begin());
  61
  62                 moof::script::status status = state_.scene->load(settings,
  63                                                                                                            state_.script);
  64                 if (status != moof::script::success)
  65                 {
  66                         std::string str;
  67                         state_.script[-1].get(str);
  68                         throw std::runtime_error("script error: " + str);
  69                 }
  70
  71                 moof::script::slot table = state_.script.globals().push_field("Event");
  72                 if (table.is_table())
  73                 {
  74                         state_.script.push("Think");
  75                         table.push_field("Think");
  76                         state_.script.registry().set_field();
  77                 }
  78                 state_.script.pop();
  79
  80                 table = state_.script.globals().push_field("Event");
  81                 if (table.is_table())
  82                 {
  83                         table.push_field("Draw");
  84                         state_.script.registry().set_field("Draw");
  85                 }
  86                 state_.script.pop();
  87         }
  88 }
  89
  90
  91 GameLayer::GameLayer()
  92 {
  93         music_.sample("NightFusionIntro.ogg");
  94         music_.loop(true);
  95         music_.enqueue("NightFusionLoop.ogg");
  96         music_.position(moof::vector3(10.0, 5.0, 0.0));
  97
  98         punch_sound_.sample("RobotPunch");
  99
 100         state_.heroine = Heroine::alloc();
 101         state_.heroine->animation.startSequence("FlyDiagonallyUp");
 102
 103         state_.interp.init(0.0, 1.0, 4.0, moof::lerp_scalar::oscillate);
 104 }
 105
 106
 107 void GameLayer::did_add_to_view()
 108 {
 109         bool isMute = false;
 110         settings().get("nomusic", isMute);
 111         music_.play();
 112
 113         loadSceneLoader();
 114         advanceScene(settings());               // load the first scene
 115
 116         mHud = Hud::alloc(state_);
 117         add_child(mHud);
 118
 119         mRay.direction.set(1.0, 0.0);
 120
 121         mLine.a.set(20, 10);
 122         mLine.b.set(19, 14);
 123
 124         mCircle.point.set(22, 5);
 125         mCircle.radius = 2;
 126
 127         mRayTimer.init(boost::bind(&GameLayer::rayTimer, this),
 128                                    1.0, moof::timer::repeat);
 129
 130         projection();
 131 }
 132
 133
 134 void GameLayer::update(moof::scalar t, moof::scalar dt)
 135 {
 136         if (!state_.scene) return;
 137         state_.camera.update(t, dt);
 138         state_.heroine->update(t, dt);
 139
 140         state_.scene->checkForCollision(*state_.heroine);
 141
 142         moof::vector3 cam= -moof::promote(state_.heroine->state().position, 8);
 143         state_.camera.position(cam);
 144
 145         mRay.point = state_.heroine->state().position;
 146
 147         state_.script.registry().push_field("Think");
 148         if (state_.script[-1].is_function()) state_.script.call();
 149         else                                 state_.script.pop();
 150
 151         moof::view::update(t, dt);
 152 }
 153
 154 void GameLayer::rayTimer()
 155 {
 156         moof::ray2::contact meh;
 157         std::list<moof::ray2::contact> hits;
 158         moof::vector2 point;
 159
 160         bool bam = mLine.intersect_ray(mRay, meh);
 161         if (bam)
 162         {
 163                 //meh.normal.normalize();
 164                 //hits.push_back(meh);
 165                 mRay.solve(point, meh.distance);
 166                 moof::log_info << "line: d = " << meh.distance << std::endl;
 167                 moof::log_info << "      P = " << point << std::endl;
 168                 moof::log_info << "      n = " << meh.normal << std::endl;
 169         }
 170
 171         bam = mCircle.intersect_ray(mRay, meh);
 172         if (bam)
 173         {
 174                 meh.normal.normalize();
 175                 hits.push_back(meh);
 176         }
 177
 178         if (state_.scene->castRay(mRay, hits))
 179         {
 180                 hits.front().normal.normalize();
 181                 mRay.solve(point, hits.front().distance);
 182                 moof::log_info << "scene: d = " << hits.front().distance << std::endl;
 183                 moof::log_info << "       P = " << point << std::endl;
 184                 moof::log_info << "       n = " << hits.front().normal << std::endl;
 185         }
 186 }
 187
 188
 189 void GameLayer::draw(moof::scalar alpha) const
 190 {
 191         if (!state_.scene) return;
 192         state_.camera.upload_to_gl(alpha);
 193
 194         float pos[] = {state_.heroine->state().position[0],
 195                                    state_.heroine->state().position[1], 0.0f, 1.0f};
 196         glLightfv(GL_LIGHT0, GL_POSITION, pos);
 197
 198         // DRAW THE SCENE
 199         moof::image::reset_binding();
 200
 201         glEnableClientState(GL_VERTEX_ARRAY);
 202         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 203
 204         //state_.scene->draw_if_visible(alpha, state_.camera.frustum());
 205
 206         size_t meh = 23;
 207         state_.script.push(meh);
 208         state_.script.pop();
 209
 210         state_.script.registry().push_field("Draw");
 211         if (state_.script[-1].is_function())
 212         {
 213                 moof::script::status result = state_.script.call();
 214                 if (result != moof::script::success)
 215                 {
 216                         std::string str;
 217                         state_.script[-1].get(str);
 218                         throw std::runtime_error("script error: " + str);
 219                 }
 220         }
 221         else                                 state_.script.pop();
 222
 223         state_.heroine->draw(alpha);
 224
 225         mRay.draw();
 226         mLine.draw();
 227         mCircle.draw();
 228
 229         moof::view::draw(alpha);
 230 }
 231
 232 bool GameLayer::handle_event(const moof::event& event)
 233 {
 234         if (moof::view::handle_event(event)) return true;
 235
 236         switch (event.type)
 237         {
 238                 case SDL_KEYDOWN:
 239                         if (event.key.keysym.sym == SDLK_SPACE)
 240                         {
 241                                 state_.heroine->animation.startSequence("Flattened");
 242                                 moof::log_info("thump!");
 243                                 punch_sound_.play();
 244                                 return true;
 245                         }
 246                         else if (event.key.keysym.sym == SDLK_m)
 247                         {
 248                                 music_.toggle();
 249                                 return true;
 250                         }
 251                         else if (event.key.keysym.sym == SDLK_PAGEUP)
 252                         {
 253                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 254                                                                                                                 moof::rad(10.0));
 255                                 return true;
 256                         }
 257                         else if (event.key.keysym.sym == SDLK_PAGEDOWN)
 258                         {
 259                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 260                                                                                                                 moof::rad(-10.0));
 261                                 return true;
 262                         }
 263                         else if (event.key.keysym.sym == SDLK_r)
 264                         {
 265                                 loadSceneLoader();
 266                                 advanceScene(settings());
 267                                 return true;
 268                         }
 269                         return state_.heroine->handle_event(event);
 270
 271                 case SDL_KEYUP:
 272                         if (event.key.keysym.sym == SDLK_ESCAPE)
 273                         {
 274                                 parent().remove_child(this);
 275                                 return true;
 276                         }
 277                         else if (event.key.keysym.sym == SDLK_h)
 278                         {
 279                                 add_child(mHud);
 280                                 return true;
 281                         }
 282                         return state_.heroine->handle_event(event);
 283
 284                 case SDL_MOUSEMOTION:
 285                 case SDL_MOUSEBUTTONDOWN:
 286                         state_.camera.handle_event(event);
 287                         return true;
 288
 289                 case SDL_VIDEORESIZE:
 290                         projection(event.resize.w, event.resize.h);
 291                         break;
 292         }
 293
 294         return false;
 295 }
 296
 297
 298 void GameLayer::projection()
 299 {
 300         projection(video().width(), video().height());
 301 }
 302
 303 void GameLayer::projection(moof::scalar width, moof::scalar height)
 304 {
 305         state_.camera.projection(moof::rad(60.0),
 306                                                          width / height,
 307                                                          SCALAR(1.0), SCALAR(200.0));
 308 }
 309