module projector; import streamingplayer; import std.stdio : writeln; class Projector { private string description; private StreamingPlayer player; this(string description, StreamingPlayer player) { this.description = description; this.player = player; } void on() { writeln(description ~ " on"); } void off() { writeln(description ~ " off"); } void wideScreenMode() { writeln(description ~ " in widescreen mode (16x9 aspect ratio)"); } void tvMode() { writeln(description ~ " in tv mode (4x3 aspect ratio)"); } override string toString() const { return description; } }