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::Result status = mState.script.doFile(loaderPath);
  72         if (status != Mf::Script::SUCCESS)
  73         {
  74                 std::string str;
  75                 mState.script[-1].get(str);
  76
  77                 throw Mf::Exception(Mf::ErrorCode::SCRIPT_ERROR, str);
  78         }
  79
  80         mState.script.getGlobalTable().pushField("scenes");
  81         mState.script.getTop().get(mState.sceneList);
  82         if (mState.sceneList.size() == 0)
  83         {
  84                 throw Mf::Exception(Mf::ErrorCode::SCRIPT_ERROR,
  85                                 "no variable `scenes' within loader");
  86         }
  87 }
  88
  89 void GameLayer::advanceScene()
  90 {
  91         if (mState.sceneList.size() != 0)
  92         {
  93                 mState.scene = Scene::alloc(mState.sceneList[0]);
  94                 mState.sceneList.erase(mState.sceneList.begin());
  95
  96                 Mf::Script::Result status = mState.scene->load(mState.script);
  97                 if (status != Mf::Script::SUCCESS)
  98                 {
  99                         std::string str;
 100                         mState.script[-1].get(str);
 101
 102                         throw Mf::Exception(Mf::ErrorCode::SCRIPT_ERROR, str);
 103                 }
 104         }
 105 }
 106
 107
 108 GameLayer::GameLayer() :
 109         mMusic("NightFusionIntro"),
 110         mPunchSound("Thump")
 111 {
 112         mMusic.setLooping(true);
 113         mMusic.enqueue("NightFusionLoop");
 114
 115         bool isMute = false;
 116         Mf::Settings::getInstance().get("nomusic", isMute);
 117         if (!isMute) mMusic.play();
 118
 119         //mMusic.setPosition(Mf::Vector3(10.0, 5.0, 0.0));
 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
 140         mLine.a.set(20, 10);
 141         mLine.b.set(19, 14);
 142
 143         mSphere.point.set(22, 5);
 144         mSphere.radius = 2;
 145
 146         mRayTimer.init(boost::bind(&GameLayer::rayTimer, this), 1.0, Mf::Timer::REPEAT);
 147 }
 148
 149
 150 void GameLayer::update(Mf::Engine& engine, Mf::Scalar t, Mf::Scalar dt)
 151 {
 152         mState.camera.update(t, dt);
 153         mState.heroine->update(t, dt);
 154
 155         mState.scene->checkForCollision(*mState.heroine);
 156
 157         mState.camera.setPosition(Mf::Vector3(-mState.heroine->getState().position[0],
 158                                 -mState.heroine->getState().position[1], -9));
 159         //mState.camera.lookAt(Mf::promote(mState.heroine->getState().position));
 160
 161         mRay.point = mState.heroine->getState().position;
 162 }
 163
 164
 165 void GameLayer::rayTimer()
 166 {
 167         Mf::Ray<2>::Intersection meh;
 168         std::list<Mf::Ray<2>::Intersection> hits;
 169         Mf::Vector2 point;
 170
 171         bool bam = mLine.intersectRay(mRay, meh);
 172         if (bam)
 173         {
 174                 meh.normal.normalize();
 175                 hits.push_back(meh);
 176         }
 177
 178         bam = mSphere.intersectRay(mRay, meh);
 179         if (bam)
 180         {
 181                 meh.normal.normalize();
 182                 hits.push_back(meh);
 183         }
 184
 185         if (mState.scene->castRay(mRay, hits))
 186         {
 187                 hits.front().normal.normalize();
 188                 mRay.solve(point, hits.front().distance);
 189                 Mf::logDebug << "scene: d = " << hits.front().distance << std::endl;
 190                 Mf::logDebug << "       P = " << point << std::endl;
 191                 Mf::logDebug << "       n = " << hits.front().normal << std::endl;
 192         }
 193 }
 194
 195
 196 void GameLayer::draw(Mf::Engine& engine, Mf::Scalar alpha) const
 197 {
 198         mState.camera.uploadToGL(alpha);
 199
 200         // DRAW THE SCENE
 201         Mf::Texture::resetBind();
 202
 203         glEnableClientState(GL_VERTEX_ARRAY);
 204         glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 205
 206         mState.scene->drawIfVisible(alpha, mState.camera.getFrustum());
 207
 208         mState.heroine->setZCoord(getZCoord(mState.heroine->getState().position));
 209         mState.heroine->draw(alpha);
 210
 211         mRay.draw();
 212         mLine.draw();
 213         mSphere.draw();
 214 }
 215
 216 bool GameLayer::handleEvent(Mf::Engine& engine, const Mf::Event& event)
 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                         return mState.heroine->handleEvent(event);
 246
 247                 case SDL_KEYUP:
 248                         if (event.key.keysym.sym == SDLK_ESCAPE)
 249                         {
 250                                 engine.pop(this);
 251                                 return true;
 252                         }
 253                         else if (event.key.keysym.sym == SDLK_h)
 254                         {
 255                                 engine.push(Hud::alloc(mState));
 256                                 return true;
 257                         }
 258                         return mState.heroine->handleEvent(event);
 259
 260                 case SDL_MOUSEMOTION:
 261                 case SDL_MOUSEBUTTONDOWN:
 262                         mState.camera.handleEvent(event);
 263                         return true;
 264
 265                 case SDL_VIDEORESIZE:
 266                         setProjection(event.resize.w, event.resize.h);
 267                         break;
 268         }
 269
 270         return false;
 271 }
 272
 273
 274 void GameLayer::setProjection()
 275 {
 276         Mf::VideoP video = Mf::Engine::getInstance().getVideo();
 277         setProjection(video->getWidth(), video->getHeight());
 278 }
 279
 280 void GameLayer::setProjection(Mf::Scalar width, Mf::Scalar height)
 281 {
 282         mState.camera.setProjection(cml::rad(60.0), width / height, 1.0, 200.0);
 283 }
 284
 285
 286 /** vim: set ts=4 sw=4 tw=80: *************************************************/
 287