Question

I have a problem where i have a list of one class (DrawableGameComponent) with many instances of different types of classes inherited from DrawableGameComponent.

The thing is i want to access a variable from one of those classes, but since they are declared as a DrawableGameComponent, i can’t access any other variable than DrawableGameComponent has.

main class:

List<DrawableGameComponent> entities = new List<DrawableGameComponent>();

“player” class:

public Color color;
public int score;

any idea of how i can access these variables from the main class?

Answer 1

If DrawableGameComponent is base for Player you can do this:

foreach(DrawableGameComponent entity in entities)
{
    Player player = entity as Player;
    if(player != null)
    {
        Color col = player.color;
        int score = player.score;
    }
}

Beacause ‘is’, ‘as’ and casting are relatively expensive it is preferred to do it just once – as above.