Dogcows Code - chaz/yoink/blob - src/Moof/Scene.hh

   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 #ifndef _MOOF_SCENE_HH_
  30 #define _MOOF_SCENE_HH_
  31
  32 #include <string>
  33
  34 #include <boost/shared_ptr.hpp>
  35
  36 #include <Moof/Drawable.hh>
  37 #include <Moof/Entity.hh>
  38 #include <Moof/Octree.hh>
  39 #include <Moof/Resource.hh>
  40 #include <Moof/Tilemap.hh>
  41
  42
  43 namespace Mf {
  44
  45
  46 OctreeP loadScene(const std::string& name);
  47
  48
  49 class Quad : public Entity
  50 {
  51         Scalar          vertices_[12];
  52         Scalar          texCoords_[8];
  53
  54         Tilemap         tilemap_;
  55
  56         long            detail_;
  57         bool            blending_;
  58         bool            fog_;
  59
  60 public:
  61
  62         Quad(const Vector3 vertices[4], const std::string& texture,
  63                         Tilemap::Index tileIndex) :
  64                 tilemap_(texture),
  65                 detail_(0),
  66                 blending_(false),
  67                 fog_(false)
  68         {
  69                 for (int i = 0, num = 0; i < 4; ++i)
  70                 {
  71                         for (int j = 0; j < 3; ++j, ++num)
  72                         {
  73                                 vertices_[num] = vertices[i][j];
  74                         }
  75                 }
  76
  77                 if (!tilemap_.getTileCoords(tileIndex, texCoords_))
  78                 {
  79                         logWarning("no index %d in texture %s", tileIndex,
  80                                         texture.c_str());
  81
  82                         texCoords_[0] = texCoords_[1] =
  83                                 texCoords_[3] = texCoords_[6] = 0.0;
  84                         texCoords_[2] = texCoords_[4] =
  85                                 texCoords_[5] = texCoords_[7] = 1.0;
  86                 }
  87
  88                 aabb_.encloseVertices(vertices, 4);
  89                 sphere_.point = aabb_.getCenter();
  90                 sphere_.radius = (aabb_.min - sphere_.point).length();
  91         }
  92
  93         void setDetail(long detail)
  94         {
  95                 detail_ = detail;
  96         }
  97
  98         void setBlending(bool blending)
  99         {
 100                 blending_ = blending;
 101         }
 102
 103         void setFog(bool fog)
 104         {
 105                 fog_ = fog;
 106         }
 107
 108         void draw(Scalar alpha = 0.0) const
 109         {
 110                 if (blending_)
 111                 {
 112                         glEnable(GL_BLEND);
 113                         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 114                 }
 115
 116                 if (fog_)
 117                 {
 118                         glEnable(GL_FOG);
 119                         glFogi(GL_FOG_MODE, GL_LINEAR);
 120                 }
 121
 122                 glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 123                 tilemap_.bind();
 124
 125                 glVertexPointer(3, GL_SCALAR, 0, vertices_);
 126                 glTexCoordPointer(2, GL_SCALAR, 0, texCoords_);
 127
 128                 glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
 129
 130                 glDisable(GL_BLEND);
 131                 glDisable(GL_FOG);
 132         }
 133
 134         bool isVisible(const Frustum& frustum) const
 135         {
 136                 return sphere_.isVisible(frustum);
 137         }
 138 };
 139
 140
 141 } // namespace Mf
 142
 143 #endif // _MOOF_SCENE_HH_
 144
 145 /** vim: set ts=4 sw=4 tw=80: *************************************************/
 146