Fix nil dereference.

2023-04-03 01:40:47 -07:00
parent 47fa7c3d6b
commit c798ba31e1
1 changed files with 1 additions and 1 deletions
--- a/koboldsim/cardtypes.go
+++ b/koboldsim/cardtypes.go
@ -83,7 +83,7 @@ func (s *SwitchingCard) Options(*Player) ([]CardOption, error) {
 func (s *SwitchingCard) Then(p *Player, o CardOption) error {
 	newPolicy := o.(Policy)
 	var errs cardsim.ErrorCollector
-	if !newPolicy.Is(s.lastPolicy) {
+	if s.lastPolicy != nil && !newPolicy.Is(s.lastPolicy) {
 		err := s.lastPolicy.Unenact(p)
 		if cardsim.IsSeriousError(err) {
 			return err