feat: 添加21点游戏

handler/blackjack/view/viewer.go

@@ -0,0 +1,52 @@
+package view
+
+import (
+	"git.lxtend.com/qqbot/handler/blackjack/controller"
+	"git.lxtend.com/qqbot/handler/blackjack/model"
+)
+
+func getEmojiOfColor(color string) string {
+	switch color {
+	case "Spade":
+		return "♠"
+	case "Heart":
+		return "♥️"
+	case "Diamond":
+		return "♦"
+	case "Club":
+		return "♣"
+	default:
+		return ""
+	}
+}
+
+type LiteralViewer struct {
+	response  string
+	simulator *controller.BackJackSimulator
+}
+
+func NewLiteralViewer(simulator *controller.BackJackSimulator) *LiteralViewer {
+	return &LiteralViewer{
+		simulator: simulator,
+		response:  "",
+	}
+}
+
+func generateCardSeries(deck *model.Deck) string {
+	cards := ""
+	for _, card := range deck.Cards() {
+		if card.Visible {
+			cards += getEmojiOfColor(card.Color) + card.Name + " "
+		} else {
+			cards += "🂠 "
+		}
+	}
+	return cards
+}
+
+func (viewer *LiteralViewer) GetResponse() string {
+	viewer.response = ""
+	viewer.response += "[🃏] Dealer: " + generateCardSeries(viewer.simulator.GetDealerCards()) + "\n"
+	viewer.response += "[🎴] Player: " + generateCardSeries(viewer.simulator.GetPlayerCards()) + "\n"
+	return viewer.response
+}