class Cell {
  int followerR = 20;

  float focusX;
  float focusY;
  float mfocusX;
  float mfocusY;

  Follower[] followers;
  int numFollowers = 10;

  Rectangle granny;
  
  float valR;
  float valG;
  float valB;  

  Cell(Rectangle r, float startX, float startY, float mfocX, float mfocY) {

    granny = r;

    //makes cell out of Follower class
    focusX = startX;
    focusY = startY;
    mfocusX = mfocX;
    mfocusY = mfocY;

    followers = new Follower[numFollowers];
    for(int i = 0; i < numFollowers; i++) {
      followers[i] = new Follower(this);
    } 
  }

  void drawCell() {
    focusX += mfocusX;
    focusY += mfocusY;
    
    valR = granny.cellR;
    valG = granny.cellG;
    valB = granny.cellB;

    //movement of focus spot  
    fill(255);
    //ellipse(focusX + mfocusX, focusY + mfocusY, 10,10);
    if (focusX > granny.right || focusX < granny.left ){
      mfocusX *= -1;  
    }
    if (focusY > granny.bottom || focusY < granny.top ){
      mfocusY *= -1;  
    }

    //draws ellipses in cell
    fill(0);
    for(int i = 0; i < numFollowers; i++) {   
      followers[i].drawFollower();
    }

    //checks if focus dot is hitting other cells    
    for( int i=0; i<granny.cells.length; i++){
      if(granny.cells[i]!=this){
        for( int j=0; j<granny.cells[i].followers.length; j++ ){
          checkBoundary( granny.cells[i].followers[j] );
        }
      }
    }


  }

  void checkBoundary(Follower follower) {

    if ( (focusX >= follower.mx - (followerR)) &&
      (focusX <= follower.mx + (followerR)) &&
      (focusY >= follower.my - (followerR)) &&
      (focusY <= follower.my + (followerR))) {

      mfocusX *= -1;  
    }

  }

}