From bcffeac4c5086eba59448d4fe5d79bb786b05de2 Mon Sep 17 00:00:00 2001
From: Florian Fischer <florian.fischer@muhq.space>
Date: Fri, 6 Jun 2025 16:42:46 -0500
Subject: refactor client activities

Make the activity stack explicit and move reusable activities to the
activity package.
---
 go/activities/activity.go | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 go/activities/activity.go

(limited to 'go/activities/activity.go')

diff --git a/go/activities/activity.go b/go/activities/activity.go
new file mode 100644
index 00000000..c082b8c6
--- /dev/null
+++ b/go/activities/activity.go
@@ -0,0 +1,41 @@
+package activities
+
+import (
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+type ActivityStack struct {
+	activityStack []ebiten.Game
+}
+
+var Activities ActivityStack
+
+type Activity = ebiten.Game
+
+func (s *ActivityStack) PushActivity(a Activity) {
+	s.activityStack = append(s.activityStack, a)
+}
+
+func (s *ActivityStack) PopActivity() Activity {
+	n := len(s.activityStack)
+	a := s.activityStack[n-1]
+	s.activityStack = s.activityStack[:n-1]
+	return a
+}
+
+func (s *ActivityStack) Last() Activity {
+	n := len(s.activityStack)
+	return s.activityStack[n-1]
+}
+
+func PushActivity(a Activity) {
+	Activities.PushActivity(a)
+}
+
+func PopActivity() Activity {
+	return Activities.PopActivity()
+}
+
+func CurActivity() Activity {
+	return Activities.Last()
+}
-- 
cgit v1.2.3