Compiler directives v IoC

gistfile1.txt

// With compiler directives
public class SpaceInvadersGame
{
    private Vector2 screenRes;
    
    public SpaceInvadersGame()
    {
        #if WINDOWS_PHONE
        screenRes = new Vector2(800,480);
        #endif
        
        #if MONOTOUCH
        screenRes = new Vector2(1280,720);
        #endif
    }
}

// With IoC
public class SpaceInvadersGame
{
    private Vector2 screenRes;
    
    public SpaceInvadersGame(Vector2 screenRes)
    {
        this.screenRes = screenRes;
    }
}