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 <Moof/Error.hh>
  13 #include <Moof/Log.hh>
  14 #include <Moof/Math.hh>
  15 #include <Moof/OpenGL.hh>
  16 #include <Moof/Settings.hh>
  17 #include <Moof/Video.hh>
  18
  19 #include "GameLayer.hh"
  20
  21 #if HAVE_CONFIG_H
  22 #include "config.h"
  23 #endif
  24
  25
  26 void GameLayer::loadSceneLoader()
  27 {
  28         mState.script.importStandardLibraries();
  29         importLogFunctions(mState.script);
  30
  31         std::string path("loader");
  32         if (!Scene::getPath(path))
  33         {
  34                 throw Mf::Error(Mf::Error::RESOURCE_NOT_FOUND, "loader");
  35         }
  36
  37         Mf::Script::Result status = mState.script.doFile(path);
  38         if (status != Mf::Script::SUCCESS)
  39         {
  40                 std::string str;
  41                 mState.script[-1].get(str);
  42
  43                 throw Mf::Error(Mf::Error::SCRIPT_ERROR, str);
  44         }
  45
  46         mState.script.globals().pushField("scenes");
  47         mState.script.top().get(mState.sceneList);
  48         if (mState.sceneList.size() == 0)
  49         {
  50                 throw Mf::Error(Mf::Error::SCRIPT_ERROR,
  51                                 "no variable `scenes' within loader");
  52         }
  53 }
  54
  55 void GameLayer::advanceScene(Mf::Settings& settings)
  56 {
  57         if (mState.sceneList.size() != 0)
  58         {
  59                 mState.scene = Scene::alloc(mState.sceneList[0]);
  60                 mState.sceneList.erase(mState.sceneList.begin());
  61
  62                 Mf::Script::Result status = mState.scene->load(settings,
  63                                                                                                            mState.script);
  64                 if (status != Mf::Script::SUCCESS)
  65                 {
  66                         std::string str;
  67                         mState.script[-1].get(str);
  68
  69                         throw Mf::Error(Mf::Error::SCRIPT_ERROR, str);
  70                 }
  71
  72                 Mf::Script::Slot table = mState.script.globals().pushField("Event");
  73                 if (table.isTable())
  74                 {
  75                         mState.script.push("Think");
  76                         table.pushField("Think");
  77                         mState.script.registry().setField();
  78                 }
  79                 mState.script.pop();
  80         }
  81 }
  82
  83
  84 GameLayer::GameLayer() :
  85         mMusic("NightFusionIntro"),
  86         mPunchSound("Thump")
  87 {
  88         mMusic.setLooping(true);
  89         mMusic.enqueue("NightFusionLoop");
  90
  91         //mMusic.setPosition(Mf::Vector3(10.0, 5.0, 0.0));
  92
  93         mThinkTimer.init(boost::bind(&GameLayer::thinkTimer, this),
  94                         0.1, Mf::Timer::REPEAT);
  95
  96         mState.heroine = Heroine::alloc();
  97         mState.heroine->animation.startSequence("FlyDiagonallyUp");
  98
  99         mState.interp.init(0.0, 1.0);
 100         mState.interp.reset(4.0, Mf::Interp::OSCILLATE);
 101 }
 102
 103
 104 void GameLayer::didAddToView()
 105 {
 106         bool isMute = false;
 107         settings().get("nomusic", isMute);
 108         if (!isMute) mMusic.play();
 109
 110         loadSceneLoader();
 111         advanceScene(settings());               // load the first scene
 112
 113         mHud = Hud::alloc(mState);
 114         addChild(mHud);
 115
 116         mRay.direction.set(1.0, 0.0);
 117
 118         mLine.a.set(20, 10);
 119         mLine.b.set(19, 14);
 120
 121         mCircle.point.set(22, 5);
 122         mCircle.radius = 2;
 123
 124         mRayTimer.init(boost::bind(&GameLayer::rayTimer, this),
 125                                    1.0, Mf::Timer::REPEAT);
 126
 127         setProjection();
 128 }
 129
 130
 131 void GameLayer::update(Mf::Scalar t, Mf::Scalar dt)
 132 {
 133         if (!mState.scene) return;
 134         mState.camera.update(t, dt);
 135         mState.heroine->update(t, dt);
 136
 137         mState.scene->checkForCollision(*mState.heroine);
 138
 139         Mf::Vector3 cam= -Mf::promote(mState.heroine->getState().position, 8);
 140         mState.camera.setPosition(cam);
 141
 142         mRay.point = mState.heroine->getState().position;
 143
 144         Mf::View::update(t, dt);
 145 }
 146
 147 void GameLayer::thinkTimer()
 148 {
 149         mState.script.registry().pushField("Think");
 150         if (mState.script[-1].isFunction()) mState.script.call();
 151         else                                mState.script.pop();
 152 }
 153
 154
 155 void GameLayer::rayTimer()
 156 {
 157         Mf::Ray2::Contact meh;
 158         std::list<Mf::Ray2::Contact> hits;
 159         Mf::Vector2 point;
 160
 161         bool bam = mLine.intersectRay(mRay, meh);
 162         if (bam)
 163         {
 164                 //meh.normal.normalize();
 165                 //hits.push_back(meh);
 166                 mRay.solve(point, meh.distance);
 167                 Mf::logInfo << "line: d = " << meh.distance << std::endl;
 168                 Mf::logInfo << "      P = " << point << std::endl;
 169                 Mf::logInfo << "      n = " << meh.normal << std::endl;
 170         }
 171
 172         bam = mCircle.intersectRay(mRay, meh);
 173         if (bam)
 174         {
 175                 meh.normal.normalize();
 176                 hits.push_back(meh);
 177         }
 178
 179         if (mState.scene->castRay(mRay, hits))
 180         {
 181                 hits.front().normal.normalize();
 182                 mRay.solve(point, hits.front().distance);
 183                 Mf::logInfo << "scene: d = " << hits.front().distance << std::endl;
 184                 Mf::logInfo << "       P = " << point << std::endl;
 185                 Mf::logInfo << "       n = " << hits.front().normal << std::endl;
 186         }
 187 }
 188
 189
 190 void GameLayer::draw(Mf::Scalar alpha) const
 191 {
 192         if (!mState.scene) return;
 193         mState.camera.uploadToGL(alpha);
 194
 195         // DRAW THE SCENE
 196         Mf::Texture::resetBind();
 197
 198         glEnableClientState(GL_VERTEX_ARRAY);
 199         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 200
 201         mState.scene->drawIfVisible(alpha, mState.camera.getFrustum());
 202         mState.heroine->draw(alpha);
 203
 204         mRay.draw();
 205         mLine.draw();
 206         mCircle.draw();
 207
 208         Mf::View::draw(alpha);
 209 }
 210
 211 bool GameLayer::handleEvent(const Mf::Event& event)
 212 {
 213         if (Mf::View::handleEvent(event)) return true;
 214
 215         switch (event.type)
 216         {
 217                 case SDL_KEYDOWN:
 218                         if (event.key.keysym.sym == SDLK_SPACE)
 219                         {
 220                                 mState.heroine->animation.startSequence("Flattened");
 221                                 Mf::logInfo("thump!");
 222                                 mPunchSound.play();
 223                                 return true;
 224                         }
 225                         else if (event.key.keysym.sym == SDLK_m)
 226                         {
 227                                 mMusic.toggle();
 228                                 return true;
 229                         }
 230                         else if (event.key.keysym.sym == SDLK_PAGEUP)
 231                         {
 232                                 mRay.direction = cml::rotate_vector_2D(mRay.direction,
 233                                                 cml::rad(10.0));
 234                                 return true;
 235                         }
 236                         else if (event.key.keysym.sym == SDLK_PAGEDOWN)
 237                         {
 238                                 mRay.direction = cml::rotate_vector_2D(mRay.direction,
 239                                                 cml::rad(-10.0));
 240                                 return true;
 241                         }
 242                         else if (event.key.keysym.sym == SDLK_r)
 243                         {
 244                                 loadSceneLoader();
 245                                 advanceScene(settings());
 246                                 return true;
 247                         }
 248                         return mState.heroine->handleEvent(event);
 249
 250                 case SDL_KEYUP:
 251                         if (event.key.keysym.sym == SDLK_ESCAPE)
 252                         {
 253                                 parent().removeChild(this);
 254                                 return true;
 255                         }
 256                         else if (event.key.keysym.sym == SDLK_h)
 257                         {
 258                                 addChild(mHud);
 259                                 return true;
 260                         }
 261                         return mState.heroine->handleEvent(event);
 262
 263                 case SDL_MOUSEMOTION:
 264                 case SDL_MOUSEBUTTONDOWN:
 265                         mState.camera.handleEvent(event);
 266                         return true;
 267
 268                 case SDL_VIDEORESIZE:
 269                         setProjection(event.resize.w, event.resize.h);
 270                         break;
 271         }
 272
 273         return false;
 274 }
 275
 276
 277 void GameLayer::setProjection()
 278 {
 279         setProjection(video().getWidth(), video().getHeight());
 280 }
 281
 282 void GameLayer::setProjection(Mf::Scalar width, Mf::Scalar height)
 283 {
 284         mState.camera.setProjection(cml::rad(45.0),
 285                                                                 width / height,
 286                                                                 SCALAR(1.0), SCALAR(200.0));
 287 }
 288