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 (!Scene::find_path(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         mMusic("NightFusionIntro"),
  84         mPunchSound("Thump")
  85 {
  86         mMusic.loop(true);
  87         mMusic.enqueue("NightFusionLoop");
  88
  89         //mMusic.setPosition(moof::vector3(10.0, 5.0, 0.0));
  90
  91         mThinkTimer.init(boost::bind(&GameLayer::thinkTimer, this),
  92                         0.1, moof::timer::repeat);
  93
  94         state_.heroine = Heroine::alloc();
  95         state_.heroine->animation.startSequence("FlyDiagonallyUp");
  96
  97         state_.interp.init(0.0, 1.0, 4.0, moof::lerp_scalar::oscillate);
  98 }
  99
 100
 101 void GameLayer::did_add_to_view()
 102 {
 103         bool isMute = false;
 104         settings().get("nomusic", isMute);
 105         if (!isMute) mMusic.play();
 106
 107         loadSceneLoader();
 108         advanceScene(settings());               // load the first scene
 109
 110         mHud = Hud::alloc(state_);
 111         add_child(mHud);
 112
 113         mRay.direction.set(1.0, 0.0);
 114
 115         mLine.a.set(20, 10);
 116         mLine.b.set(19, 14);
 117
 118         mCircle.point.set(22, 5);
 119         mCircle.radius = 2;
 120
 121         mRayTimer.init(boost::bind(&GameLayer::rayTimer, this),
 122                                    1.0, moof::timer::repeat);
 123
 124         projection();
 125 }
 126
 127
 128 void GameLayer::update(moof::scalar t, moof::scalar dt)
 129 {
 130         if (!state_.scene) return;
 131         state_.camera.update(t, dt);
 132         state_.heroine->update(t, dt);
 133
 134         state_.scene->checkForCollision(*state_.heroine);
 135
 136         moof::vector3 cam= -moof::promote(state_.heroine->state().position, 8);
 137         state_.camera.position(cam);
 138
 139         mRay.point = state_.heroine->state().position;
 140
 141         moof::view::update(t, dt);
 142 }
 143
 144 void GameLayer::thinkTimer()
 145 {
 146         state_.script.registry().push_field("Think");
 147         if (state_.script[-1].is_function()) state_.script.call();
 148         else                                state_.script.pop();
 149 }
 150
 151
 152 void GameLayer::rayTimer()
 153 {
 154         moof::ray2::contact meh;
 155         std::list<moof::ray2::contact> hits;
 156         moof::vector2 point;
 157
 158         bool bam = mLine.intersect_ray(mRay, meh);
 159         if (bam)
 160         {
 161                 //meh.normal.normalize();
 162                 //hits.push_back(meh);
 163                 mRay.solve(point, meh.distance);
 164                 moof::log_info << "line: d = " << meh.distance << std::endl;
 165                 moof::log_info << "      P = " << point << std::endl;
 166                 moof::log_info << "      n = " << meh.normal << std::endl;
 167         }
 168
 169         bam = mCircle.intersect_ray(mRay, meh);
 170         if (bam)
 171         {
 172                 meh.normal.normalize();
 173                 hits.push_back(meh);
 174         }
 175
 176         if (state_.scene->castRay(mRay, hits))
 177         {
 178                 hits.front().normal.normalize();
 179                 mRay.solve(point, hits.front().distance);
 180                 moof::log_info << "scene: d = " << hits.front().distance << std::endl;
 181                 moof::log_info << "       P = " << point << std::endl;
 182                 moof::log_info << "       n = " << hits.front().normal << std::endl;
 183         }
 184 }
 185
 186
 187 void GameLayer::draw(moof::scalar alpha) const
 188 {
 189         if (!state_.scene) return;
 190         state_.camera.upload_to_gl(alpha);
 191
 192         // DRAW THE SCENE
 193         moof::texture::reset_binding();
 194
 195         glEnableClientState(GL_VERTEX_ARRAY);
 196         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 197
 198         state_.scene->draw_if_visible(alpha, state_.camera.frustum());
 199         state_.heroine->draw(alpha);
 200
 201         mRay.draw();
 202         mLine.draw();
 203         mCircle.draw();
 204
 205         moof::view::draw(alpha);
 206 }
 207
 208 bool GameLayer::handle_event(const moof::event& event)
 209 {
 210         if (moof::view::handle_event(event)) return true;
 211
 212         switch (event.type)
 213         {
 214                 case SDL_KEYDOWN:
 215                         if (event.key.keysym.sym == SDLK_SPACE)
 216                         {
 217                                 state_.heroine->animation.startSequence("Flattened");
 218                                 moof::log_info("thump!");
 219                                 mPunchSound.play();
 220                                 return true;
 221                         }
 222                         else if (event.key.keysym.sym == SDLK_m)
 223                         {
 224                                 mMusic.toggle();
 225                                 return true;
 226                         }
 227                         else if (event.key.keysym.sym == SDLK_PAGEUP)
 228                         {
 229                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 230                                                                                                                 moof::rad(10.0));
 231                                 return true;
 232                         }
 233                         else if (event.key.keysym.sym == SDLK_PAGEDOWN)
 234                         {
 235                                 mRay.direction = moof::rotate_vector_2D(mRay.direction,
 236                                                                                                                 moof::rad(-10.0));
 237                                 return true;
 238                         }
 239                         else if (event.key.keysym.sym == SDLK_r)
 240                         {
 241                                 loadSceneLoader();
 242                                 advanceScene(settings());
 243                                 return true;
 244                         }
 245                         return state_.heroine->handle_event(event);
 246
 247                 case SDL_KEYUP:
 248                         if (event.key.keysym.sym == SDLK_ESCAPE)
 249                         {
 250                                 parent().remove_child(this);
 251                                 return true;
 252                         }
 253                         else if (event.key.keysym.sym == SDLK_h)
 254                         {
 255                                 add_child(mHud);
 256                                 return true;
 257                         }
 258                         return state_.heroine->handle_event(event);
 259
 260                 case SDL_MOUSEMOTION:
 261                 case SDL_MOUSEBUTTONDOWN:
 262                         state_.camera.handle_event(event);
 263                         return true;
 264
 265                 case SDL_VIDEORESIZE:
 266                         projection(event.resize.w, event.resize.h);
 267                         break;
 268         }
 269
 270         return false;
 271 }
 272
 273
 274 void GameLayer::projection()
 275 {
 276         projection(video().width(), video().height());
 277 }
 278
 279 void GameLayer::projection(moof::scalar width, moof::scalar height)
 280 {
 281         state_.camera.projection(moof::rad(45.0),
 282                                                          width / height,
 283                                                          SCALAR(1.0), SCALAR(200.0));
 284 }
 285