class Attractor 
{ 
  
  
//PROPERTIES
  float x;//position
  float y;
  float r; //reichweite
  float s; //stŠrke 
//---------------------------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------------------------- 
//CONSTRUCTOR

  Attractor(float r, float s)
  {
    x = random(50,550);
    y = random(50,450);
    this.r = r;
    this.s = s;   
  }
//---------------------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------------------
//METHODS
 
  float distanceTo (float x, float y)
  {
  float dx = x - this.getX();
  float dy = y - this.getY();    
  return sqrt (dx*dx + dy*dy);
  }
//---------------------------------------------------------------------------------------------------------

  float xdistanceTo (float x, float y)
  {
    return  x - this.getX();  
  }
//---------------------------------------------------------------------------------------------------------

  float ydistanceTo (float x, float y)
  {
    return  y - this.getY();  
  }
//---------------------------------------------------------------------------------------------------------

  void display()
  {   
    fill(0,255,0);
    noStroke();
    ellipse(x,y,3,3); 
  }
//---------------------------------------------------------------------------------------------------------
//GETTERS AND SETTERS


  float getX()
  {
    return this.x;
  }
//---------------------------------------------------------------------------------------------------------

  float getY()
  {
    return this.y;
  }
//---------------------------------------------------------------------------------------------------------

   float getReichweite()
  {
    return this.r;
  }
//---------------------------------------------------------------------------------------------------------

  float getStarke()
  {
    return this.s;
  }
//---------------------------------------------------------------------------------------------------------
}