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engine.h

Go to the documentation of this file.

#ifndef ENGINE_H
#define ENGINE_H

#include <list>
#include <float.h>
#include <GL/glut.h>
#include <animal/event/keyEvent.h>
#include <animal/event/mouseEvent.h>
#include <animal/picking.h>
#include <animal/world.h>

namespace animal {

class Engine
{
   public:
    
    Engine(): drawBBox(false), drawEngine(true), moveEngine(true), resetEngine(true){}
    
    virtual void init(){ reset(); }
    
    virtual void reset(){}
    virtual void postReset(){}

    virtual void move(double){}
    virtual void postMove(double){}
    
    virtual void draw(){}
    
    virtual void getBoundingBox( float & minX, float & minY, float & minZ,
                                 float & maxX, float & maxY, float & maxZ)
    {
      // FLT_MAX is defined in float.h
      minX=minY=minZ=1.0e+35;
      maxX=maxY=maxZ=-1.0e+35;
    }
    
    //====================== Mouse and key board events
    virtual void keyPressEvent(KeyEvent *){ }
    virtual void mouseDoubleClickEvent(MouseEvent * ){ }
    virtual void mouseMoveEvent(MouseEvent *){ }
    virtual void mousePressEvent(MouseEvent *){ }
    virtual void mouseReleaseEvent(MouseEvent *){ }
    // ----------  FF: picking -----------------------------
    virtual ConstrainedItem* pickPoint( float*, float*, float  ){ return 0; }
    // ----------  end FF: picking -----------------------------
    
    static World * world(){ return theWorld; }
    static void setWorld(World * w){ theWorld = w; }
    
    void drawBoundingBox()
    {
      if (drawBBox)
      {
        glPushAttrib(GL_ALL_ATTRIB_BITS);
          glDisable(GL_LIGHTING);
          float minX, minY, minZ, maxX, maxY, maxZ;
          getBoundingBox(minX, minY, minZ, maxX, maxY, maxZ);
          glColor3d(1.0, 1.0, 1.0);
          glPushMatrix();
            glTranslatef((minX+maxX)/2.0, (minY+maxY)/2.0, (minZ+maxZ)/2.0);
            glScalef(maxX-minX, maxY-minY, maxZ-minZ);
            glutWireCube(1.0);
          glPopMatrix();
        glPopAttrib();
      }
    }
        
    //====================== Attributes
    bool drawBBox;
    bool drawEngine;
    bool moveEngine;
    bool resetEngine;
  
  private:
    static World * theWorld;
    
};


}  //namespace animal
#endif //ENGINE_H

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