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 loaderPath = Scene::getPath("loader");
  32         if (loaderPath == "")
  33         {
  34                 throw Mf::Error(Mf::Error::RESOURCE_NOT_FOUND, "loader");
  35         }
  36
  37         Mf::Script::Result status = mState.script.doFile(loaderPath);
  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.getGlobalTable().pushField("scenes");
  47         mState.script.getTop().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                 mState.script.getGlobalTable().pushField("Event");
  73                 if (mState.script[-1].isTable())
  74                 {
  75                         mState.script[-1].pushField("Think");
  76                         mState.script.set("Think", Mf::Script::REGISTRY);
  77                         mState.script.pop(2);
  78                 }
  79                 else
  80                 {
  81                         mState.script.pop();
  82                 }
  83         }
  84 }
  85
  86
  87 GameLayer::GameLayer() :
  88         mMusic("NightFusionIntro"),
  89         mPunchSound("Thump")
  90 {
  91         mMusic.setLooping(true);
  92         mMusic.enqueue("NightFusionLoop");
  93
  94         //mMusic.setPosition(Mf::Vector3(10.0, 5.0, 0.0));
  95
  96         mThinkTimer.init(boost::bind(&GameLayer::thinkTimer, this),
  97                         0.1, Mf::Timer::REPEAT);
  98
  99         mState.heroine = Heroine::alloc();
 100         mState.heroine->animation.startSequence("FlyDiagonallyUp");
 101
 102         mState.interp.init(0.0, 1.0);
 103         mState.interp.reset(4.0, Mf::Interp::OSCILLATE);
 104 }
 105
 106
 107 void GameLayer::didAddToView()
 108 {
 109         bool isMute = false;
 110         settings().get("nomusic", isMute);
 111         if (!isMute) mMusic.play();
 112
 113         loadSceneLoader();
 114         advanceScene(settings());               // load the first scene
 115
 116         mHud = Hud::alloc(mState);
 117         addChild(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, Mf::Timer::REPEAT);
 129
 130         setProjection();
 131 }
 132
 133
 134 void GameLayer::update(Mf::Scalar t, Mf::Scalar dt)
 135 {
 136         if (!mState.scene) return;
 137         mState.camera.update(t, dt);
 138         mState.heroine->update(t, dt);
 139
 140         mState.scene->checkForCollision(*mState.heroine);
 141
 142         Mf::Vector3 cam= -Mf::promote(mState.heroine->getState().position, 8);
 143         mState.camera.setPosition(cam);
 144
 145         mRay.point = mState.heroine->getState().position;
 146
 147         Mf::View::update(t, dt);
 148 }
 149
 150 void GameLayer::thinkTimer()
 151 {
 152         mState.script.getRegistryTable().pushField("Think");
 153         if (mState.script[-1].isFunction()) mState.script.call();
 154         else                                mState.script.pop();
 155 }
 156
 157
 158 void GameLayer::rayTimer()
 159 {
 160         Mf::Ray2::Contact meh;
 161         std::list<Mf::Ray2::Contact> hits;
 162         Mf::Vector2 point;
 163
 164         bool bam = mLine.intersectRay(mRay, meh);
 165         if (bam)
 166         {
 167                 //meh.normal.normalize();
 168                 //hits.push_back(meh);
 169                 mRay.solve(point, meh.distance);
 170                 Mf::logInfo << "line: d = " << meh.distance << std::endl;
 171                 Mf::logInfo << "      P = " << point << std::endl;
 172                 Mf::logInfo << "      n = " << meh.normal << std::endl;
 173         }
 174
 175         bam = mCircle.intersectRay(mRay, meh);
 176         if (bam)
 177         {
 178                 meh.normal.normalize();
 179                 hits.push_back(meh);
 180         }
 181
 182         if (mState.scene->castRay(mRay, hits))
 183         {
 184                 hits.front().normal.normalize();
 185                 mRay.solve(point, hits.front().distance);
 186                 Mf::logInfo << "scene: d = " << hits.front().distance << std::endl;
 187                 Mf::logInfo << "       P = " << point << std::endl;
 188                 Mf::logInfo << "       n = " << hits.front().normal << std::endl;
 189         }
 190 }
 191
 192
 193 void GameLayer::draw(Mf::Scalar alpha) const
 194 {
 195         if (!mState.scene) return;
 196         mState.camera.uploadToGL(alpha);
 197
 198         // DRAW THE SCENE
 199         Mf::Texture::resetBind();
 200
 201         glEnableClientState(GL_VERTEX_ARRAY);
 202         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 203
 204         mState.scene->drawIfVisible(alpha, mState.camera.getFrustum());
 205         mState.heroine->draw(alpha);
 206
 207         mRay.draw();
 208         mLine.draw();
 209         mCircle.draw();
 210
 211         Mf::View::draw(alpha);
 212 }
 213
 214 bool GameLayer::handleEvent(const Mf::Event& event)
 215 {
 216         if (Mf::View::handleEvent(event)) return true;
 217
 218         switch (event.type)
 219         {
 220                 case SDL_KEYDOWN:
 221                         if (event.key.keysym.sym == SDLK_SPACE)
 222                         {
 223                                 mState.heroine->animation.startSequence("Flattened");
 224                                 Mf::logInfo("thump!");
 225                                 mPunchSound.play();
 226                                 return true;
 227                         }
 228                         else if (event.key.keysym.sym == SDLK_m)
 229                         {
 230                                 mMusic.toggle();
 231                                 return true;
 232                         }
 233                         else if (event.key.keysym.sym == SDLK_PAGEUP)
 234                         {
 235                                 mRay.direction = cml::rotate_vector_2D(mRay.direction,
 236                                                 cml::rad(10.0));
 237                                 return true;
 238                         }
 239                         else if (event.key.keysym.sym == SDLK_PAGEDOWN)
 240                         {
 241                                 mRay.direction = cml::rotate_vector_2D(mRay.direction,
 242                                                 cml::rad(-10.0));
 243                                 return true;
 244                         }
 245                         else if (event.key.keysym.sym == SDLK_r)
 246                         {
 247                                 loadSceneLoader();
 248                                 advanceScene(settings());
 249                                 return true;
 250                         }
 251                         return mState.heroine->handleEvent(event);
 252
 253                 case SDL_KEYUP:
 254                         if (event.key.keysym.sym == SDLK_ESCAPE)
 255                         {
 256                                 parent().removeChild(this);
 257                                 return true;
 258                         }
 259                         else if (event.key.keysym.sym == SDLK_h)
 260                         {
 261                                 addChild(mHud);
 262                                 return true;
 263                         }
 264                         return mState.heroine->handleEvent(event);
 265
 266                 case SDL_MOUSEMOTION:
 267                 case SDL_MOUSEBUTTONDOWN:
 268                         mState.camera.handleEvent(event);
 269                         return true;
 270
 271                 case SDL_VIDEORESIZE:
 272                         setProjection(event.resize.w, event.resize.h);
 273                         break;
 274         }
 275
 276         return false;
 277 }
 278
 279
 280 void GameLayer::setProjection()
 281 {
 282         setProjection(video().getWidth(), video().getHeight());
 283 }
 284
 285 void GameLayer::setProjection(Mf::Scalar width, Mf::Scalar height)
 286 {
 287         mState.camera.setProjection(cml::rad(45.0), width / height, 1.0, 200.0);
 288 }
 289