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_ = moof::resource::load("sounds/NightFusionIntro.ogg");
  84         if (music_)
  85         {
  86                 music_->loop(true);
  87                 music_->enqueue("NightFusionLoop");
  88         }
  89         else moof::log_error("music not loaded");
  90
  91         //music_->position(moof::vector3(10.0, 5.0, 0.0));
  92
  93         mThinkTimer.init(boost::bind(&GameLayer::thinkTimer, this),
  94                         0.1, moof::timer::repeat);
  95
  96         state_.heroine = Heroine::alloc();
  97         state_.heroine->animation.startSequence("FlyDiagonallyUp");
  98
  99         state_.interp.init(0.0, 1.0, 4.0, moof::lerp_scalar::oscillate);
 100 }
 101
 102
 103 void GameLayer::did_add_to_view()
 104 {
 105         bool isMute = false;
 106         settings().get("nomusic", isMute);
 107         if (!isMute) music_->play();
 108
 109         loadSceneLoader();
 110         advanceScene(settings());               // load the first scene
 111
 112         mHud = Hud::alloc(state_);
 113         add_child(mHud);
 114
 115         mRay.direction.set(1.0, 0.0);
 116
 117         mLine.a.set(20, 10);
 118         mLine.b.set(19, 14);
 119
 120         mCircle.point.set(22, 5);
 121         mCircle.radius = 2;
 122
 123         mRayTimer.init(boost::bind(&GameLayer::rayTimer, this),
 124                                    1.0, moof::timer::repeat);
 125
 126         projection();
 127 }
 128
 129
 130 void GameLayer::update(moof::scalar t, moof::scalar dt)
 131 {
 132         if (!state_.scene) return;
 133         state_.camera.update(t, dt);
 134         state_.heroine->update(t, dt);
 135
 136         state_.scene->checkForCollision(*state_.heroine);
 137
 138         moof::vector3 cam= -moof::promote(state_.heroine->state().position, 8);
 139         state_.camera.position(cam);
 140
 141         mRay.point = state_.heroine->state().position;
 142
 143         moof::view::update(t, dt);
 144 }
 145
 146 void GameLayer::thinkTimer()
 147 {
 148         state_.script.registry().push_field("Think");
 149         if (state_.script[-1].is_function()) state_.script.call();
 150         else                                state_.script.pop();
 151 }
 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         // DRAW THE SCENE
 195         moof::texture::reset_binding();
 196
 197         glEnableClientState(GL_VERTEX_ARRAY);
 198         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 199
 200         state_.scene->draw_if_visible(alpha, state_.camera.frustum());
 201         state_.heroine->draw(alpha);
 202
 203         mRay.draw();
 204         mLine.draw();
 205         mCircle.draw();
 206
 207         moof::view::draw(alpha);
 208 }
 209
 210 bool GameLayer::handle_event(const moof::event& event)
 211 {
 212         if (moof::view::handle_event(event)) return true;
 213
 214         switch (event.type)
 215         {
 216                 case SDL_KEYDOWN:
 217                         if (event.key.keysym.sym == SDLK_SPACE)
 218                         {
 219                                 state_.heroine->animation.startSequence("Flattened");
 220                                 moof::log_info("thump!");
 221                                 //mPunchSound.play();
 222                                 return true;
 223                         }
 224                         else if (event.key.keysym.sym == SDLK_m)
 225                         {
 226                                 music_->toggle();
 227                                 return true;
 228                         }
 229                         else if (event.key.keysym.sym == SDLK_PAGEUP)
 230                         {
 231                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 232                                                                                                                 moof::rad(10.0));
 233                                 return true;
 234                         }
 235                         else if (event.key.keysym.sym == SDLK_PAGEDOWN)
 236                         {
 237                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 238                                                                                                                 moof::rad(-10.0));
 239                                 return true;
 240                         }
 241                         else if (event.key.keysym.sym == SDLK_r)
 242                         {
 243                                 loadSceneLoader();
 244                                 advanceScene(settings());
 245                                 return true;
 246                         }
 247                         return state_.heroine->handle_event(event);
 248
 249                 case SDL_KEYUP:
 250                         if (event.key.keysym.sym == SDLK_ESCAPE)
 251                         {
 252                                 parent().remove_child(this);
 253                                 return true;
 254                         }
 255                         else if (event.key.keysym.sym == SDLK_h)
 256                         {
 257                                 add_child(mHud);
 258                                 return true;
 259                         }
 260                         return state_.heroine->handle_event(event);
 261
 262                 case SDL_MOUSEMOTION:
 263                 case SDL_MOUSEBUTTONDOWN:
 264                         state_.camera.handle_event(event);
 265                         return true;
 266
 267                 case SDL_VIDEORESIZE:
 268                         projection(event.resize.w, event.resize.h);
 269                         break;
 270         }
 271
 272         return false;
 273 }
 274
 275
 276 void GameLayer::projection()
 277 {
 278         projection(video().width(), video().height());
 279 }
 280
 281 void GameLayer::projection(moof::scalar width, moof::scalar height)
 282 {
 283         state_.camera.projection(moof::rad(60.0),
 284                                                          width / height,
 285                                                          SCALAR(1.0), SCALAR(200.0));
 286 }
 287