/*
--- CSU213 Fall 2006 Lecture Notes ---------
Copyright 2006 Viera K. Proulx

Lecture 1: September 6, 2006
Part 3: Data definitions with containment in ProfessorJ


Managing ITunes
---------------
*/
/*
;; A Song is (make-song String Artist Number Number)
(define-struct song (title artist size price))

;; An Artist is (make-artist String Number)
(define-struct artist (name dob))

;; Examples:
(define beatles (make-artist "Beatles" 1964))
(define eagles (make-artist "Eagles" 1980))

(define help (make-song "Help" beatles  3178852 0.99))
(define hc (make-song "Hotel California" eagles 4405515 0.99))
*/

/*
+---------------+
| Song          |
+---------------+
| String title  |
| Artist artist |--+
| int size      |  |
| double price  |  |
+---------------+  |
                   v
           +-------------+
           | Artist      |
           +-------------+
           | String name |
           | int dob     |
           +-------------+

*/

// to represent an ITunes song recording
class Song {
  String title;
  Artist artist;
  int size;
  double price;

  Song(String title, Artist artist, int size, double price) {
    this.title = title;
    this.artist = artist;
    this.size = size;
    this.price = price;
  }
}


// to represent an artist
class Artist {
  String name;
  int dob;

  Artist(String name, int dob) {
    this.name = name;
    this.dob = dob;
  }
}


class ExamplesSong {
  ExamplesSong(){}
 
  Artist beatles = new Artist("Beatles", 1963);
  Artist eagles = new Artist("Eagles", 1972);

  Song help = new Song("help", this.beatles, 3178852, 0.99);
  Song hc = new Song("Hotel California", this.eagles, 4405515, 0.99);
}


// Playing a Game - crossing a minefield
// -------------------------------------

/*
;; A Player is (make-player String Posn)
(define-struct player (name position))
;; A Mine is represented by a Posn

;; Examples:
(define john (make-player "John" (make-posn 50 50)))
(define mine1 (make-posn 20 50))
(define mine2 (make-posn 50 40))
;; ...

*/

/*
+-----------------+
| Player          |
+-----------------+
| String name     |
| CartPt position |--+
+-----------------+  |
                     v
                +--------+
                | CartPt |
                +--------+
                | int x  |
                | int y  |
                +--------+

*/

// to represent a player in a minefield crossing game
class Player {
  String name;
  CartPt position;

  Player(String name, CartPt position) {
    this.name = name;
    this.position = position;
  }
}

/*
+--------+
| CartPt |
+--------+
| int x  |
| int y  |
+--------+

*/

// to represent a Cartesian point
class CartPt {
  int x;
  int y;

  CartPt(int x, int y) {
    this.x = x;
    this.y = y;
  }
}

class ExamplesMinefield{
  ExamplesMinefield() {}

  Player john = new Player("John", new CartPt(50, 50));
  CartPt mine1 = new CartPt(20, 50);
  CartPt mine2 = new CartPt(50, 40);
}


// Traveling on the T in Boston
// ----------------------------

/*
;; A Station is (make-station (String String Number))
(define-struct station (name line price))

;; Examples:
(define harvard (make-station "Harvard" "red" 1.25))
(define riverside (make-station "Riverside" "green" 2.50))
(define kenmore (make-station "Kenmore" "green" 1.25))
*/

// Leave this as is --- next time we add a list of lines,
// for example the red and green line that go through the
// Park station...

/*
+--------------+
| Station      |
+--------------+
| String name  |
| String line  |
| double price |
+--------------+

*/

// to represent a station on a Boston T
class Station {
  String name;
  String line;
  double price;

  Station(String name, String line, double price) {
    this.name = name;
    this.line = line;
    this.price = price;
  }
}

class ExamplesStation{
  ExamplesStation() {}

  Station harvard = new Station("Harvard","red", 1.25);
  Station riverside = new Station("Riverside", "green", 2.50);
  Station kenmore = new Station("Kenmore", "green", 1.25);
}