intermediate commit

* Implement move artifact action
* Fix widget update memory leak
  * update the highlights not during on each frame
  * do not update the unchanged label of a button
* Allow to exit the game by pressing 'q'
* Implement some cards from the magic set
* Improve permanent formatting
* Some tweaks to UnitAI code

1 files changed, 4 insertions, 0 deletions

diff --git a/go/game/artifact.go b/go/game/artifact.go
index 6edc975a..81692346 100644
--- a/go/game/artifact.go
+++ b/go/game/artifact.go
@@ -34,6 +34,10 @@ func NewArtifact(card *Card, tile *Tile, owner *Player) *Artifact {
 	return a
 }
 
+func (a *Artifact) String() string {
+	return FmtPermanent(a)
+}
+
 func (a *Artifact) IsDestroyed() bool {
 	return a.Solid > 0 && a.Damage() >= a.Solid
 }