implement banner

1 files changed, 31 insertions, 0 deletions

diff --git a/go/game/areaEffect.go b/go/game/areaEffect.go
index ea97b31c..9260f8a7 100644
--- a/go/game/areaEffect.go
+++ b/go/game/areaEffect.go
@@ -26,6 +26,21 @@ func (e *dynamicAreaEffect) onLeaving(p Permanent) {
 	}
 }
 
+func newCombinedAreaEffect(aoes []areaEffect) *dynamicAreaEffect {
+	return &dynamicAreaEffect{
+		_onEntering: func(p Permanent) {
+			for _, aoe := range aoes {
+				aoe.onEntering(p)
+			}
+		},
+		_onLeaving: func(p Permanent) {
+			for _, aoe := range aoes {
+				aoe.onLeaving(p)
+			}
+		},
+	}
+}
+
 func newGrantFullActionEffect(cardPath string, f ActionFuncPrototype, desc, tag string,
 ) *dynamicAreaEffect {
 	onEntering := func(p Permanent) {
@@ -49,3 +64,19 @@ func newGrantFullActionEffect(cardPath string, f ActionFuncPrototype, desc, tag
 
 	return newDynamicAreaEffect(onEntering, onLeaving)
 }
+
+func newAdjustmentAreaEffect(adjust func(Permanent, int), delta int) *dynamicAreaEffect {
+	onEntering := func(p Permanent) {
+		u := p.(*Unit)
+		e := newAdjustmentEffect(adjust, u, delta)
+		e.apply(u.controller.gameState)
+	}
+
+	onLeaving := func(p Permanent) {
+		u := p.(*Unit)
+		e := newAdjustmentEffect(adjust, u, delta)
+		e.end(u.controller.gameState)
+	}
+
+	return newDynamicAreaEffect(onEntering, onLeaving)
+}