import geometry.*;
import colors.*;
import draw.*;

// union of shapes
interface iShape {
 double totalArea();
}

// square class
class Square implements iShape {
  Posn nw;
  int size;
  IColor color;

  Square(Posn nw, int size, IColor color) {
    this.nw = nw;
    this.size = size;
    this.color = color;
  }
  
  // methods
  // totalArea
  // tells the area of a square
  /*
    ...this.nw...    -- Posn
    ...this.size...  -- int
    ...this.color..  -- IColor
  */
  double totalArea(){
    return this.size * this.size;
    }
    
    boolean Draw(Canvas c){
    return
    c.drawRect(this.nw, this.size, this.size, this.color);
    }
    
}

// Circle Class
class Circle implements iShape {
  Posn center;
  int radius;
  IColor color;

  Circle(Posn center, int radius, IColor color) {
    this.center = center;
    this.radius = radius;
    this.color = color;
  }
  // methods
  // totalArea
  // computes the total area of a circle
  /*
    ...this.center...    -- Posn
    ...this.radius...    -- int
    ...this.color...     -- IColor
  */
  double totalArea(){
    return Math.PI * (this.radius * this.radius);
    }
    
    boolean Draw(Canvas c){
    return
    c.drawCircle(this.center, this.radius, this.color);
    }
    
}

// Combo Class
class Combo implements iShape {
  iShape top;
  iShape bottom;

  Combo(iShape top, iShape bottom) {
    this.top = top;
    this.bottom = bottom;
  }
  // methods
  // totalArea
  // computes the total area of a combo
  /*
    ...this.top...    -- iShape
    ...this.bottom... -- iShape
  */
  double totalArea(){
    return this.top.totalArea() + this.bottom.totalArea();
    }
    
}

class Example{
  Example() {}
  Posn   posn1   = new Posn(100, 100);
  Posn   posn2   = new Posn(150, 150);
  IColor red     = new Red();
  iShape square1 = new Square(this.posn1, 10, this.red);
  iShape circle1 = new Circle(this.posn2, 10, this.red);
  iShape combo1  = new Combo(this.square1, this.circle1);
  
  boolean testTotalArea = (check this.square1.totalArea()
     expect 100 within .01) && (check this.circle1.totalArea()
        expect 314.15 within .01)&& (check this.combo1.totalArea() 
           expect 414.15 within .01);
                          
  Canvas c = new Canvas(200, 200);
  
  boolean makeDrawing = 
    this.c.show() && 
    this.c.drawDisk(new Posn(100, 150), 50, new Red());
    

  
  }