class Point(var x:Double=0.0, var y:Double=0.0) {
}

object Point {
 def apply(x:Double=0.0, y:Double=0.0) = {ilosc+=1; new Point(x, y)}
 private var ilosc=0
 def iloscFigur=ilosc
}

class Circle(var center:Point=Point(), var radius:Double=0.0) extends Point {
 def obwod():Double = {
  2*3.14*radius
 }
 def pole():Double = {
  3.14*radius*radius
 }
 def czyLezy(punkt:Point):Boolean = {

   ((punkt.x-x)*(punkt.x-x))+((punkt.y-y)*(punkt.y-y))==(radius*radius)

 }
}

object Circle {
 def apply(center:Point=Point(), radius:Double=0.0) = {ilosc+=1; new Circle(center, radius)}
 private var ilosc=0
 def iloscFigur=ilosc
}

class Cyllinder(var circle1:Circle=Circle(), var height:Double=0.0) extends Circle {
 def poleBoczne():Double = {
   circle1.obwod()*height
 }
}
object Cyllinder {
 def apply(c1:Circle=Circle(), height:Double=0.0) = {ilosc+=1; new Cyllinder(c1, height)}
 private var ilosc=0
 def iloscFigur=ilosc
}

class Triangle(var p1:Point=Point(), var p2:Point=Point(), var h:Double) extends Point {
  def pole = (h/2) * Math.sqrt(  ((p2.x - p1.x) * (p2.x - p1.x)) + ((p2.y - p1.y) * (p2.y - p1.y)) )
}

object Triangle {
 def apply(p1:Point=Point(), p2:Point=Point(), h:Double) = {ilosc+=1; new Triangle(p1, p2, h)}
 private var ilosc=0
 def iloscFigur=ilosc
}



val p1 = Point(5,4);;
val p2 = Point(6,7);;
val p3 = Point(1,3);;

val c1 =  Circle(p1,4);;
val cyllinder1 = Cyllinder(c1,10);;
val tr1 =  Triangle(p1,p2,2);;


c1.obwod
c1.pole
c1.czyLezy( Point(1,1))

cyllinder1.poleBoczne
tr1.pole

Point.iloscFigur
Circle.iloscFigur
Cyllinder.iloscFigur
Triangle.iloscFigur




/////////////////////////////////////////////////////////// zadanie 2
trait plywanie
{
  def msgP = ("\n   Plywam ")
}

trait latanie
{
   var stopienL = 1;
   def msgL = ("\n  Latam " + ( if(stopienL==1) "znakomicie"
                                else if (stopienL==2) "dobrze"
                                else "slabo"))
}

trait nurkowanie
{
  def msgN = ("\n   Nurkuje ")
}

trait bieganie
{
   var stopienB = 1;
   def msgB = ("\n  Biegam " + (if(stopienB==1) "znakomicie"
                                else if (stopienB==2) "dobrze"
                                else "slabo" ))
 }

object Ewidencja
{
   var numer = 0;
   def nadajNr =
   {
    numer = numer+1;
    println("Pochodze od dinozaurów!!");
    numer;
   }

   def listaPlywajacych(ls:List[Ptak with plywanie]):String=
   {
      ls match
      {
         case Nil => ""
         case h::t => "\n" + h.toString() + h.msgP + listaPlywajacych (t)
      }
    }

   def listaLatajacych(ls:List[Ptak with latanie]):String=
   {
     ls match
     {
        case Nil => ""
        case h::t => "\n" + h.toString() + h.msgL + listaLatajacych (t)
     }
    }

   def listaNurkujacych(ls:List[Ptak with nurkowanie]):String=
   {
        ls match
        {
           case Nil => ""
           case h::t => "\n" + h.toString() + h.msgN + listaNurkujacych (t)
        }
   }

   def listaBiegajacych(ls:List[Ptak with bieganie]):String=
   {
      ls match
      {
         case Nil => ""
         case h::t =>  "\n" + h.toString() + h.msgB + listaBiegajacych (t)
      }
   }
}


abstract class Ptak
{
    var nr = Ewidencja.nadajNr;
    override def toString = "Ptak nr: "+ nr + " - "
}

class Pingwin extends Ptak with plywanie with nurkowanie
{
   override def toString = super.toString + this.getClass().getName();
}

class Golab extends Ptak with plywanie with latanie with bieganie
{
   this.stopienL=1;
   this.stopienB=2;
   override def toString = super.toString + this.getClass().getName();
}

class Strus extends Ptak with bieganie
{
   this.stopienB=1;
   override def toString = super.toString + this.getClass().getName();
}

class Kura extends Ptak with latanie with bieganie
{
   this.stopienL=2;
   this.stopienB=2;
   override def toString = super.toString + this.getClass().getName();
}

class Sokol extends Ptak with latanie
{
   this.stopienL=3;
   override def toString = super.toString + this.getClass().getName();
}


var p1 :Ptak with plywanie with latanie with bieganie   = new Golab;
var p2 :Ptak with latanie with bieganie  = new Kura;
var p3 :Ptak with latanie   = new Sokol;


println("LATAJACE:");
Ewidencja.listaLatajacych(p1::p2::p3::Nil);



var b1 :Ptak with plywanie with latanie with bieganie   = new Golab;
var b2 :Ptak with latanie with bieganie  = new Kura;
var b3 :Ptak with bieganie   = new Strus;


println("BIEGAJACE:");
Ewidencja.listaBiegajacych(List(b1,b2,b3));


var n1: Ptak with nurkowanie = new Pingwin


println("NURKUJACE");
Ewidencja.listaNurkujacych(n1::Nil)


var pl1 :Ptak with plywanie with latanie with bieganie   = new Golab;
var pl2 :Ptak with plywanie with latanie with bieganie   = new Golab;
var pl3 :Ptak with plywanie   = new Pingwin;

println("PLYWAJACE")
Ewidencja.listaPlywajacych(List(pl1,pl2,pl3))