Added way to get user input events from Spectator

spectator.go

@@ -37,6 +37,10 @@ type Spectator struct {
 
 	// when closed will cause the Spectator to exit the render loop.
 	Die chan struct{}
+
+	// User, if populated, will return a stream of (ostensibly keyboard) events
+	// for use outside of the Spectator.
+	User chan termbox.Event
 }
 
 // SetIDs is implemented so Spectator can be used as a client.Player.
@@ -58,6 +62,8 @@ func (s *Spectator) Spectate() error {
 		return err
 	}
 
+	termbox.SetInputMode(termbox.InputMouse)
+
 	s.viewX, s.viewY = termbox.Size()
 
 	events := make(chan termbox.Event, 1024)
@@ -101,6 +107,10 @@ func (s *Spectator) Spectate() error {
 					err = fmt.Errorf("Quitting because of termbox error:\n%v\n", event.Err)
 					return
 				}
+
+				if s.User != nil {
+					s.User <- event
+				}
 			case update := <-s.StateStream:
 				termbox.Clear(termbox.ColorBlack, termbox.ColorBlack)