From 3d36d1d0254b8aeecc889a2a49cbcced458cbe9c Mon Sep 17 00:00:00 2001
From: Florian Fischer <florian.fischer@muhq.space>
Date: Sat, 25 Feb 2023 23:08:47 +0100
Subject: 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
---
 go/game/effect.go | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 go/game/effect.go

(limited to 'go/game/effect.go')

diff --git a/go/game/effect.go b/go/game/effect.go
new file mode 100644
index 00000000..1fc6d5b0
--- /dev/null
+++ b/go/game/effect.go
@@ -0,0 +1,47 @@
+package game
+
+type effect interface {
+	apply(*State)
+	end(*State)
+}
+
+type dynamicEffect struct {
+	_apply func(*State)
+	_end   func(*State)
+}
+
+func (e *dynamicEffect) apply(s *State) {
+	e._apply(s)
+}
+
+func (e *dynamicEffect) end(s *State) {
+	e._end(s)
+}
+
+func newAdjustmentEffect(adjust func(Permanent, int), u *Unit, delta int) effect {
+	apply := func(*State) { adjust(u, delta) }
+	end := func(*State) { adjust(u, -delta) }
+	return &dynamicEffect{apply, end}
+}
+
+func newMeleeModificationEffect(u *Unit, delta int) effect {
+	return newAdjustmentEffect(adjustMelee, u, delta)
+}
+
+func newAttackModificationEffect(u *Unit, delta int) effect {
+	return newAdjustmentEffect(adjustAttack, u, delta)
+}
+
+func newMovementModificationEffect(u *Unit, delta int) effect {
+	return newAdjustmentEffect(adjustMovement, u, delta)
+}
+
+func newHealthModificationEffect(u *Unit, delta int) effect {
+	return newAdjustmentEffect(adjustHealth, u, delta)
+}
+
+func newTmpEffect(p Permanent, effect string) effect {
+	apply := func(*State) { p.addTmpEffect(effect) }
+	end := func(*State) { p.removeTmpEffect(effect) }
+	return &dynamicEffect{apply, end}
+}
-- 
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