Implement standard debuggers.

These debug actions are added to all players by default.

cardsim/card.go

@@ -101,6 +101,54 @@ func (b *BasicCard[C]) Drawn(_ *Player[C]) bool {
 	return true
 }
 
+// A PanelCard is a Card that takes its title and text from an InfoPanel,
+// while options, urgency, and the post-option callback are specified
+// (like a BasicCard). It never does anything in particular when drawn.
+//
+// Omitting all options yields an inactionable card, which can be displayed
+// but not played. This can be useful for adding an info panel as a debug action.
+type PanelCard[C StatsCollection] struct {
+	Panel       InfoPanel[C]
+	IsUrgent    bool
+	CardOptions []CardOption[C]
+	// AfterOption is given the card itself as its first argument.
+	AfterOption func(c Card[C], p *Player[C], option CardOption[C]) error
+}
+
+// Title implements Card.
+func (c *PanelCard[C]) Title(p *Player[C]) Message {
+	return c.Panel.Title(p)
+}
+
+// Urgent implements Card.
+func (c *PanelCard[C]) Urgent(_ *Player[C]) bool {
+	return c.IsUrgent
+}
+
+// EventText implements Card.
+func (c *PanelCard[C]) EventText(p *Player[C]) (Message, error) {
+	msgs, err := c.Panel.Info(p)
+	return MultiMessage(msgs), err
+}
+
+// Options implements Card.
+func (c *PanelCard[C]) Options(_ *Player[C]) ([]CardOption[C], error) {
+	return c.CardOptions, nil
+}
+
+// Then implements Card.
+func (c *PanelCard[C]) Then(p *Player[C], option CardOption[C]) error {
+	if c.AfterOption == nil {
+		return nil
+	}
+	return c.AfterOption(c, p, option)
+}
+
+// Drawn implements Card.
+func (c *PanelCard[C]) Drawn(_ *Player[C]) bool {
+	return true
+}
+
 // A BasicOption is a CardOption with fixed text, effects, and output.
 // It's always enabled.
 type BasicOption[C StatsCollection] struct {
@@ -151,3 +199,17 @@ func (o *optionFunc[C]) Enact(p *Player[C]) (Message, error) {
 func (o *optionFunc[C]) Enabled(p *Player[C]) bool {
 	return true
 }
+
+// OnlyDiscardFree returns a []CardOption[C] providing a single option, which
+// returns the action point. It does not shuffle the card back into the deck
+// or draw a replacement (consider the AfterFunc for that if needed). This
+// can be used for cards that are displayable but not actionable, but show up
+// as cards rather than permanent or debug actions for some reason.
+func OnlyDiscardFree[C StatsCollection](msg Message) []CardOption[C] {
+	return []CardOption[C]{
+		OptionFunc(msg, func(p *Player[C]) (Message, error) {
+			p.ActionsRemaining++
+			return MsgStr("Okay."), nil
+		}),
+	}
+}