Initial pass at Golden Pack.

internal/ai/ai.go

@@ -35,11 +35,13 @@ import (
 
 // Action is one move the bot wants to make, mirroring the client protocol.
 type Action struct {
-	Type  string   // "buy" | "sell" | "trade" | "tradeChoose" | "pass" | "arrange" | "ready"
-	Row   int      // buy
-	Cards []string // sell / trade
-	Pick  int      // tradeChoose
-	Order []string // arrange
+	Type   string   // buy | buyAvocado | sell | trade | tradeChoose | pass | arrange | ready | revealChoose | battleChoose
+	Row    int      // buy / buyAvocado
+	Cards  []string // sell / trade
+	Pick   int      // tradeChoose
+	Order  []string // arrange
+	CardID string   // revealChoose (Cockatoo): the pet to reveal
+	Value  int      // battleChoose (Nurse Shark): Trumpets to spend
 }
 
 // Bot is a computer player at a fixed difficulty level.
@@ -61,6 +63,12 @@ func (b *Bot) Act(v *game.View, mem *Memory) *Action {
 	me := &v.Players[v.YouSeat]
 	switch v.Phase {
 	case game.PhaseShop:
+		if v.PendingReveal != nil {
+			if v.PendingReveal.PlayerID == me.ID {
+				return b.decideReveal(v)
+			}
+			return nil
+		}
 		if v.Pending != nil {
 			if v.Pending.PlayerID == me.ID {
 				return b.decideTradeChoose(v, mem)
@@ -78,6 +86,13 @@ func (b *Bot) Act(v *game.View, mem *Memory) *Action {
 			return b.decideArrange(v, mem)
 		}
 	case game.PhaseBattle:
+		if v.PendingBattle != nil {
+			if v.PendingBattle.Seat == v.YouSeat {
+				// Spend as many Trumpets as allowed — more rocks is better.
+				return &Action{Type: "battleChoose", Value: v.PendingBattle.Max}
+			}
+			return nil
+		}
 		if !me.Ready {
 			return &Action{Type: "ready"}
 		}
@@ -85,6 +100,21 @@ func (b *Bot) Act(v *game.View, mem *Memory) *Action {
 	return nil
 }
 
+// decideReveal picks the highest-power eligible pet for Cockatoo's reveal, for
+// the most apples.
+func (b *Bot) decideReveal(v *game.View) *Action {
+	me := &v.Players[v.YouSeat]
+	best, bestPow := "", -1
+	for _, id := range v.PendingReveal.Options {
+		for _, c := range me.Deck {
+			if c.ID == id && c.Power > bestPow {
+				best, bestPow = id, c.Power
+			}
+		}
+	}
+	return &Action{Type: "revealChoose", CardID: best}
+}
+
 // Pending reports whether the seat owes the game an action right now — the
 // server uses it to decide when to schedule a bot move.
 func Pending(v *game.View) bool {
@@ -94,11 +124,21 @@ func Pending(v *game.View) bool {
 	me := &v.Players[v.YouSeat]
 	switch v.Phase {
 	case game.PhaseShop:
+		if v.PendingReveal != nil {
+			return v.PendingReveal.PlayerID == me.ID
+		}
 		if v.Pending != nil {
 			return v.Pending.PlayerID == me.ID
 		}
 		return v.Turn == v.YouSeat && !me.Ready
-	case game.PhaseArrange, game.PhaseBattle:
+	case game.PhaseArrange:
+		return !me.Ready
+	case game.PhaseBattle:
+		// A pending mid-battle decision is owed only by the deciding seat;
+		// otherwise everyone owes the battle acknowledgement.
+		if v.PendingBattle != nil {
+			return v.PendingBattle.Seat == v.YouSeat
+		}
 		return !me.Ready
 	}
 	return false