class Flower {      // class name

  // define variables

  float x; // x position  for upper point
  float y; // y position for upper point
  float c; //  for curve x
  float x1; // x position  for lower point
  int diameter;  // for size of the ball
  int diam;  // store value for the initial diameter before mouse interaction
 
  float speed; // for stem
  float grow = 1;  // for ball
  float theta = 0.0;
  float m;    // range of movement depending on width
  
  boolean mouse;  // check if mouse is same position of ball

  // constructor 

  Flower(float Tempx, float Tempy, float Tempc, float Tempx1,int Tempdiameter,float Tempspeed, float Tempm){
    x = Tempx;
    y = Tempy;
    c = Tempc;
    x1 = Tempx1;
    diameter = Tempdiameter;
    speed = Tempspeed;
    m = Tempm;
  }


  // functionality

  // draw  stem
  void drawstem(){
    // draw curve
    //y defines tall of the stem, x determine the x position of the stem, c determines the curve
    noFill();
    stroke(0);
    curve(c,50, x, y, x1, 420, 950, 900); 
    }

  // move  stem
  void stemmove() {
    //  make curve moves
    // see later _easein , easeout effect
    x = (sin(theta) + 2) * m;
    theta += speed/20;
    }

  //draw ball
  void ball(){
    // draw ball
    // x and y defines the position of the ball = stem position 
    ellipseMode(CENTER);
    fill(255);
    stroke(0);
    ellipse(x,y,diameter,diameter);
    // println(diameter);
    // if mouse if over the ball then call function ballgrow
     if ( mouse){
        growball(); 
        }
     if (!mouse){
      
       }
    }


  void growball(){
    // size of the ball increases according with variable grow
    diameter += grow;
    //println("growantes" + grow);
    // condition to create the loop - ball size changes
    if (( diameter > diam*2) || ( diameter < diam)) {
      grow = grow*-1;
      
      //println(diameter);
      //println("diam=" +diam);
      println("growdepois" + grow);
      }
  }


  // mouseover ball_creating interaction
 void rollover ( int xp, int yp ) {
    float d = dist(x,y,xp,yp);
    if (d < diameter/2) {
      mouse = true;
    } else {
      mouse = false;
    }
  }


}