explicit and graceful Env shutdown with attach/kill

1 files changed, 3 insertions, 6 deletions

diff --git a/env.go b/env.go
index 2515417..cf7f96c 100644
--- a/env.go
+++ b/env.go
@@ -8,8 +8,6 @@ import (
 // Env is the most important thing in this package. It is an interactive graphical
 // environment, such as a window.
 //
-// It has two channels: Events() and Draw().
-//
 // The Events() channel produces events, like mouse and keyboard presses, while the
 // Draw() channel receives drawing functions. A drawing function draws onto the
 // supplied draw.Image, which is the drawing area of the Env and returns a rectangle
@@ -23,11 +21,10 @@ import (
 // The Draw() channel may be synchronous.
 //
 // Drawing functions sent to the Draw() channel are not guaranteed to be executed.
-//
-// Closing the Draw() channel results in closing the Env. The Env will subsequently
-// close the Events() channel. On the other hand, when the Events() channel gets closed
-// the user of the Env should subsequently close the Draw() channel.
 type Env interface {
 	Events() <-chan Event
 	Draw() chan<- func(draw.Image) image.Rectangle
+	Killable
+
+	killer
 }