implement the free discard action

1 files changed, 39 insertions, 0 deletions

diff --git a/go/game/action.go b/go/game/action.go
index f588dce5..dbbc8700 100644
--- a/go/game/action.go
+++ b/go/game/action.go
@@ -6,6 +6,8 @@ import (
 	"log"
 	"regexp"
 	"strings"
+
+	"muhq.space/muhqs-game/go/utils"
 )
 
 type ActionSpeed int
@@ -90,6 +92,43 @@ func newHandCardSelection(p *Player, min, max int) Action {
 	return a
 }
 
+type FreeDiscardAction struct {
+	TargetSelection
+}
+
+func NewFreeDiscardAction(p *Player) *FreeDiscardAction {
+	a := &FreeDiscardAction{TargetSelection: TargetSelection{player: p}}
+	targetDesc := TargetDesc{"hand card", "2"}
+	a.targets = newTargets(newTarget(p.gameState, targetDesc, a))
+	return a
+}
+
+func (a *FreeDiscardAction) PayCosts(s *LocalState) bool {
+	if a.targets.CheckTargets(s) != nil {
+		return false
+	}
+	for _, sel := range a.Target().Selection() {
+		card, _ := sel.(*Card)
+		a.player.DiscardCard(card)
+	}
+	return true
+}
+
+func (*FreeDiscardAction) CheckTargets(*LocalState) error { return nil }
+
+func (a *FreeDiscardAction) resolve(*LocalState) {
+	a.player.gainResource(2)
+}
+
+func (a *FreeDiscardAction) String() string {
+	if a.Target().RequireSelection() {
+		return fmt.Sprintf("%s discard two", a.player.Name)
+	}
+
+	sel := utils.InterfaceSliceToTypedSlice[*Card](a.Target().Selection())
+	return fmt.Sprintf("%s discard [%s,%s]", a.player.Name, sel[0].Name, sel[1].Name)
+}
+
 type DraftPick struct {
 	player *Player
 	pick   *Card