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("loader");
  31         if (!moof::resource::find(path))
  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("NightFusionIntro.ogg");
  84         music_.loop(true);
  85         music_.enqueue("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
  97
  98 void GameLayer::did_add_to_view()
  99 {
 100         bool isMute = false;
 101         settings().get("nomusic", isMute);
 102         if (!isMute) music_.stream();
 103
 104         loadSceneLoader();
 105         advanceScene(settings());               // load the first scene
 106
 107         mHud = Hud::alloc(state_);
 108         add_child(mHud);
 109
 110         mRay.direction.set(1.0, 0.0);
 111
 112         mLine.a.set(20, 10);
 113         mLine.b.set(19, 14);
 114
 115         mCircle.point.set(22, 5);
 116         mCircle.radius = 2;
 117
 118         mRayTimer.init(boost::bind(&GameLayer::rayTimer, this),
 119                                    1.0, moof::timer::repeat);
 120
 121         projection();
 122 }
 123
 124
 125 void GameLayer::update(moof::scalar t, moof::scalar dt)
 126 {
 127         if (!state_.scene) return;
 128         state_.camera.update(t, dt);
 129         state_.heroine->update(t, dt);
 130
 131         state_.scene->checkForCollision(*state_.heroine);
 132
 133         moof::vector3 cam= -moof::promote(state_.heroine->state().position, 8);
 134         state_.camera.position(cam);
 135
 136         mRay.point = state_.heroine->state().position;
 137
 138         moof::view::update(t, dt);
 139 }
 140
 141 void GameLayer::thinkTimer()
 142 {
 143         state_.script.registry().push_field("Think");
 144         if (state_.script[-1].is_function()) state_.script.call();
 145         else                                state_.script.pop();
 146 }
 147
 148
 149 void GameLayer::rayTimer()
 150 {
 151         moof::ray2::contact meh;
 152         std::list<moof::ray2::contact> hits;
 153         moof::vector2 point;
 154
 155         bool bam = mLine.intersect_ray(mRay, meh);
 156         if (bam)
 157         {
 158                 //meh.normal.normalize();
 159                 //hits.push_back(meh);
 160                 mRay.solve(point, meh.distance);
 161                 moof::log_info << "line: d = " << meh.distance << std::endl;
 162                 moof::log_info << "      P = " << point << std::endl;
 163                 moof::log_info << "      n = " << meh.normal << std::endl;
 164         }
 165
 166         bam = mCircle.intersect_ray(mRay, meh);
 167         if (bam)
 168         {
 169                 meh.normal.normalize();
 170                 hits.push_back(meh);
 171         }
 172
 173         if (state_.scene->castRay(mRay, hits))
 174         {
 175                 hits.front().normal.normalize();
 176                 mRay.solve(point, hits.front().distance);
 177                 moof::log_info << "scene: d = " << hits.front().distance << std::endl;
 178                 moof::log_info << "       P = " << point << std::endl;
 179                 moof::log_info << "       n = " << hits.front().normal << std::endl;
 180         }
 181 }
 182
 183
 184 void GameLayer::draw(moof::scalar alpha) const
 185 {
 186         if (!state_.scene) return;
 187         state_.camera.upload_to_gl(alpha);
 188
 189         // DRAW THE SCENE
 190         moof::texture::reset_binding();
 191
 192         glEnableClientState(GL_VERTEX_ARRAY);
 193         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 194
 195         state_.scene->draw_if_visible(alpha, state_.camera.frustum());
 196         state_.heroine->draw(alpha);
 197
 198         mRay.draw();
 199         mLine.draw();
 200         mCircle.draw();
 201
 202         moof::view::draw(alpha);
 203 }
 204
 205 bool GameLayer::handle_event(const moof::event& event)
 206 {
 207         if (moof::view::handle_event(event)) return true;
 208
 209         switch (event.type)
 210         {
 211                 case SDL_KEYDOWN:
 212                         if (event.key.keysym.sym == SDLK_SPACE)
 213                         {
 214                                 state_.heroine->animation.startSequence("Flattened");
 215                                 moof::log_info("thump!");
 216                                 punch_sound_.play();
 217                                 return true;
 218                         }
 219                         else if (event.key.keysym.sym == SDLK_m)
 220                         {
 221                                 music_.toggle();
 222                                 return true;
 223                         }
 224                         else if (event.key.keysym.sym == SDLK_PAGEUP)
 225                         {
 226                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 227                                                                                                                 moof::rad(10.0));
 228                                 return true;
 229                         }
 230                         else if (event.key.keysym.sym == SDLK_PAGEDOWN)
 231                         {
 232                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 233                                                                                                                 moof::rad(-10.0));
 234                                 return true;
 235                         }
 236                         else if (event.key.keysym.sym == SDLK_r)
 237                         {
 238                                 loadSceneLoader();
 239                                 advanceScene(settings());
 240                                 return true;
 241                         }
 242                         return state_.heroine->handle_event(event);
 243
 244                 case SDL_KEYUP:
 245                         if (event.key.keysym.sym == SDLK_ESCAPE)
 246                         {
 247                                 parent().remove_child(this);
 248                                 return true;
 249                         }
 250                         else if (event.key.keysym.sym == SDLK_h)
 251                         {
 252                                 add_child(mHud);
 253                                 return true;
 254                         }
 255                         return state_.heroine->handle_event(event);
 256
 257                 case SDL_MOUSEMOTION:
 258                 case SDL_MOUSEBUTTONDOWN:
 259                         state_.camera.handle_event(event);
 260                         return true;
 261
 262                 case SDL_VIDEORESIZE:
 263                         projection(event.resize.w, event.resize.h);
 264                         break;
 265         }
 266
 267         return false;
 268 }
 269
 270
 271 void GameLayer::projection()
 272 {
 273         projection(video().width(), video().height());
 274 }
 275
 276 void GameLayer::projection(moof::scalar width, moof::scalar height)
 277 {
 278         state_.camera.projection(moof::rad(60.0),
 279                                                          width / height,
 280                                                          SCALAR(1.0), SCALAR(200.0));
 281 }
 282