class Pich{
  
  float x, y, w, h;
  float[] start;
  float[] end;
  float[] sum;
  
  int num;
  
  int[] r;
  int[] g;
  int[] b;
  
  Pich(){
  }
  
  Pich(float x_, float y_, float w_, float h_){
    x = x_;
    y = y_;
    w = w_;
    h = h_;
    
    num = 8;
    
    start = new float[num];
    end = new float[num];
    sum = new float[num];
    r = new int[num];
    g = new int[num];
    b = new int[num];
    
    for(int i=0; i<num; i++){
      r[i]=20*i;
      g[i]=20*i;
      b[i]=20*i;
    }
  }
  
  void display(){
    calAngle();
    for(int i=0; i<num; i++){
    color c = color(r[i], g[i], b[i],255-20*i);
    fill(c);
    stroke(255);
    arc(x+20*i, y, w, h, start[i], end[i]);
    }
  }
  
  void calSum(){
    for(int i=0; i<userCount ; i++){
      for(int j=0; j<num; j++){
        if(userAge[i] == j){
         sum[j] = sum[j]+1; 
        }
      }
    }
  }
  
  void calAngle(){
    for(int i=0; i<num ; i++){
    float ratio = userCount/sum[i];
    float portion = TWO_PI/ratio;
    start[i] = TWO_PI/ratio;
    end[i] = start[i]+portion;
    }
  }
  
}