Dogcows Code - chaz/yoink/blob - src/GameLayer.cc

   1
   2 /*******************************************************************************
   3
   4  Copyright (c) 2009, Charles McGarvey
   5  All rights reserved.
   6
   7  Redistribution   and   use  in  source  and  binary  forms,  with  or  without
   8  modification, are permitted provided that the following conditions are met:
   9
  10    * Redistributions  of  source  code  must retain the above copyright notice,
  11      this list of conditions and the following disclaimer.
  12    * Redistributions  in binary form must reproduce the above copyright notice,
  13      this  list of conditions and the following disclaimer in the documentation
  14      and/or other materials provided with the distribution.
  15
  16  THIS  SOFTWARE  IS  PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  AND  ANY  EXPRESS  OR  IMPLIED  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19  DISCLAIMED.  IN  NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  20  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  DAMAGES  (INCLUDING,  BUT  NOT  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  22  SERVICES;  LOSS  OF  USE,  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  23  CAUSED  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  OR  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26
  27 *******************************************************************************/
  28
  29 #include <Moof/Engine.hh>
  30 #include <Moof/Exception.hh>
  31 #include <Moof/Log.hh>
  32 #include <Moof/Math.hh>
  33 #include <Moof/OpenGL.hh>
  34 #include <Moof/Settings.hh>
  35 #include <Moof/Video.hh>
  36
  37 #include "GameLayer.hh"
  38 #include "Hud.hh"
  39
  40 #if HAVE_CONFIG_H
  41 #include "config.h"
  42 #endif
  43
  44
  45
  46 Mf::Scalar GameLayer::getZCoord(const Mf::Vector2& position) const
  47 {
  48         Mf::Scalar z;
  49
  50         mState.script.getGlobalTable().pushField("GetZCoord");
  51         mState.script.push(position[0]);
  52         mState.script.push(position[1]);
  53         mState.script.call(2, 1);
  54         mState.script.getTop().get(z);
  55         mState.script.pop();
  56
  57         return z;
  58 }
  59
  60 void GameLayer::loadSceneLoader()
  61 {
  62         mState.script.importStandardLibraries();
  63         importLogPrintFunction(mState.script);
  64
  65         std::string loaderPath = Scene::getPath("loader");
  66         if (loaderPath == "")
  67         {
  68                 throw Mf::Exception(Mf::ErrorCode::RESOURCE_NOT_FOUND, "loader");
  69         }
  70
  71         Mf::Script::Status status = mState.script.doFile(loaderPath);
  72         if (status != Mf::Script::SUCCESS)
  73         {
  74                 std::string str;
  75                 mState.script[-1].get(str);
  76
  77                 Mf::logScript("%s", str.c_str());
  78                 throw Mf::Exception(Mf::ErrorCode::SCRIPT_ERROR, str);
  79         }
  80
  81         mState.script.getGlobalTable().pushField("scenes");
  82         mState.script.getTop().get(mState.sceneList);
  83         if (mState.sceneList.size() == 0)
  84         {
  85                 Mf::logScript("no variable `scenes' within loader");
  86                 throw Mf::Exception(Mf::ErrorCode::SCRIPT_ERROR, "no scenes to load");
  87         }
  88 }
  89
  90 void GameLayer::advanceScene()
  91 {
  92         if (mState.sceneList.size() != 0)
  93         {
  94                 mState.scene = Scene::alloc(mState.sceneList[0]);
  95                 mState.sceneList.erase(mState.sceneList.begin());
  96
  97                 Mf::Script::Status status = mState.scene->load(mState.script);
  98                 if (status != Mf::Script::SUCCESS)
  99                 {
 100                         std::string str;
 101                         mState.script[-1].get(str);
 102
 103                         Mf::logScript("%s", str.c_str());
 104                         throw Mf::Exception(Mf::ErrorCode::SCRIPT_ERROR, str);
 105                 }
 106         }
 107 }
 108
 109
 110 GameLayer::GameLayer() :
 111         mMusic("NightFusionIntro"),
 112         mPunchSound("Thump")
 113 {
 114         mMusic.setLooping(true);
 115         mMusic.enqueue("NightFusionLoop");
 116
 117         bool isMute = false;
 118         Mf::Settings::getInstance().get("nomusic", isMute);
 119         if (!isMute) mMusic.play();
 120
 121         loadSceneLoader();
 122         advanceScene();                         // load the first scene
 123
 124         mState.heroine = Heroine::alloc();
 125         mState.heroine->animation.startSequence("FlyDiagonallyUp");
 126
 127         Mf::Scalar a[6] = {0.0, 1.5, -0.5, 3.0, -2.0, 1.0};
 128         mState.interp.init(a, 2.0, Mf::Interpolator::OSCILLATE);
 129
 130         setProjection();
 131 }
 132
 133
 134 void GameLayer::pushed(Mf::Engine& engine)
 135 {
 136         engine.push(Hud::alloc(mState));
 137
 138         mRay.direction.set(1.0, 0.0);
 139         mRay3.direction.set(1.0, 0.0, 0.0);
 140
 141         mLine.a.set(20, 10);
 142         mLine.b.set(19, 14);
 143
 144         mPlane.normal.set(-1.0, 0.0, 0.0);
 145         mPlane.d = 0.0;
 146
 147         mSphere.point.set(22, 5);
 148         mSphere.radius = 2;
 149 }
 150
 151
 152 void GameLayer::update(Mf::Engine& engine, Mf::Scalar t, Mf::Scalar dt)
 153 {
 154         mState.camera.update(t, dt);
 155         mState.heroine->update(t, dt);
 156
 157         mState.scene->checkForCollision(*mState.heroine);
 158
 159         mState.camera.setPosition(Mf::Vector3(-mState.heroine->getState().position[0],
 160                                 -mState.heroine->getState().position[1], -9));
 161         //mState.camera.lookAt(Mf::promote(mState.heroine->getState().position));
 162
 163         //Mf::Vector3 heroinePosition = Mf::promote(mState.heroine->getState().position);
 164         //Mf::Sound::setListenerPosition(heroinePosition);
 165
 166         mRay.point = mState.heroine->getState().position;
 167         mRay3.point = Mf::promote(mRay.point);
 168         mRay3.direction = Mf::promote(mRay.direction);
 169
 170         Mf::Ray<2>::Intersection meh;
 171         Mf::Ray<3>::Intersection meh3;
 172
 173         Mf::Scalar d = mLine.intersectRay(mRay, meh);
 174         if (d > 0.0)
 175         {
 176                 Mf::logDebug("line: d = %f", d);
 177                 Mf::logDebug("      P = <%f,%f>", meh.point[0], meh.point[1]);
 178                 Mf::logDebug("      n = <%f,%f>", meh.normal[0], meh.normal[1]);
 179         }
 180         //d = mPlane.intersectRay(mRay3, meh3);
 181         //if (d > 0.0)
 182         //{
 183                 //Mf::logDebug("plane: d = %f", d);
 184                 //Mf::logDebug("       P = <%f,%f>", meh3.point[0], meh3.point[1]);
 185                 //Mf::logDebug("       n = <%f,%f>", meh3.normal[0], meh3.normal[1]);
 186         //}
 187         d = mSphere.intersectRay(mRay, meh);
 188         if (d > 0.0)
 189         {
 190                 Mf::logDebug("sphere: d = %f", d);
 191                 Mf::logDebug("        P = <%f,%f>", meh.point[0], meh.point[1]);
 192                 Mf::logDebug("        n = <%f,%f>", meh.normal[0], meh.normal[1]);
 193         }
 194
 195         std::list<Mf::Ray<2>::Intersection> hits;
 196         if (mState.scene->castRay(mRay, hits))
 197         {
 198                 Mf::logDebug("scene: d = %f", d);
 199                 Mf::logDebug("       P = <%f,%f>", hits.front().point[0], hits.front().point[1]);
 200                 Mf::logDebug("       n = <%f,%f>", hits.front().normal[0], hits.front().normal[1]);
 201         }
 202 }
 203
 204
 205 void GameLayer::draw(Mf::Engine& engine, Mf::Scalar alpha) const
 206 {
 207         mState.camera.uploadToGL(alpha);
 208
 209         // DRAW THE SCENE
 210         Mf::Texture::resetBind();
 211
 212         glEnableClientState(GL_VERTEX_ARRAY);
 213         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 214
 215         mState.scene->drawIfVisible(alpha, mState.camera.getFrustum());
 216
 217         mState.heroine->setZCoord(getZCoord(mState.heroine->getState().position));
 218         mState.heroine->draw(alpha);
 219
 220         mRay.draw();
 221         mLine.draw();
 222         mSphere.draw();
 223 }
 224
 225 bool GameLayer::handleEvent(Mf::Engine& engine, const Mf::Event& event)
 226 {
 227         switch (event.type)
 228         {
 229                 case SDL_KEYDOWN:
 230                         if (event.key.keysym.sym == SDLK_SPACE)
 231                         {
 232                                 mState.heroine->animation.startSequence("Flattened");
 233                                 Mf::logInfo("thump!");
 234                                 mPunchSound.play();
 235                                 return true;
 236                         }
 237                         else if (event.key.keysym.sym == SDLK_m)
 238                         {
 239                                 mMusic.toggle();
 240                                 return true;
 241                         }
 242                         else if (event.key.keysym.sym == SDLK_PAGEUP)
 243                         {
 244                                 mRay.direction = cml::rotate_vector_2D(mRay.direction, cml::rad(10.0));
 245                                 return true;
 246                         }
 247                         else if (event.key.keysym.sym == SDLK_PAGEDOWN)
 248                         {
 249                                 mRay.direction = cml::rotate_vector_2D(mRay.direction, cml::rad(-10.0));
 250                                 return true;
 251                         }
 252                         return mState.heroine->handleEvent(event);
 253
 254                 case SDL_KEYUP:
 255                         if (event.key.keysym.sym == SDLK_ESCAPE)
 256                         {
 257                                 engine.pop(this);
 258                                 return true;
 259                         }
 260                         else if (event.key.keysym.sym == SDLK_h)
 261                         {
 262                                 engine.push(Hud::alloc(mState));
 263                                 return true;
 264                         }
 265                         return mState.heroine->handleEvent(event);
 266
 267                 case SDL_MOUSEMOTION:
 268                 case SDL_MOUSEBUTTONDOWN:
 269                         mState.camera.handleEvent(event);
 270                         return true;
 271
 272                 case SDL_VIDEORESIZE:
 273                         setProjection(event.resize.w, event.resize.h);
 274                         break;
 275         }
 276
 277         return false;
 278 }
 279
 280
 281 void GameLayer::setProjection()
 282 {
 283         Mf::VideoP video = Mf::Engine::getInstance().getVideo();
 284         setProjection(video->getWidth(), video->getHeight());
 285 }
 286
 287 void GameLayer::setProjection(Mf::Scalar width, Mf::Scalar height)
 288 {
 289         mState.camera.setProjection(cml::rad(60.0), width / height, 1.0, 200.0);
 290 }
 291
 292
 293 /** vim: set ts=4 sw=4 tw=80: *************************************************/
 294