// pheremone class for use with kTermites
// roland snooks  |  www.kokkugia.com  |  2007

class kPheremone{
  kVec        pos;
  int         pMag;
  int         evapRate;
  
  // constructor - simple
  kPheremone(kVec _pos){
    pos = _pos;
    pMag = 70;
    evapRate = 1;
  }
  
  // constructor - complete
  kPheremone(kVec _pos, int _pMag, int _evapRate){
    pos = _pos;
    pMag = _pMag;
    evapRate = _evapRate;
  }
  
  
  // render, evaporation and kill
  void render(){

    // evaporation
    if (frameCount % evapRate <=0){
      pMag = pMag -1;
    }
      
    // render
    kVec pt = kVec.clone(pos);
    pt.setColor(150+pMag/2); 
    space.append(pt);

    // kill
    if (pMag < 1){
      this.kill();
    }
    
  }  
 
 
  // kill 
  void kill(){
    world1.pheremones.remove(this);
  }
  
}