Make own objects

[eluser]juan1904[/eluser]
Hi,

I'm making a playoff schedule for a PS3 EA Sports NHL09 league.
I'm going to make an own class called Game something like this:

Code:

class Game {
  $hometeam;
  $awayteam;

  function __construct($home, away) {
    this.$hometeam = $home;
    this.$awayteam = $away;
  }

  // and some more code here!
}

Then in my controller or in a model I'm gonna make new objects out of this class like $game1 = new Game("Red Wings", "Penguins");

I wonder where to put my new class in codeigniter framework?