829 lines
18 KiB
Go
829 lines
18 KiB
Go
package game
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import (
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"context"
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"doudizhu-server/internal/models"
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"doudizhu-server/internal/redis"
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"encoding/json"
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"errors"
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"math/rand"
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"sort"
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"sync"
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"time"
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)
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var (
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ErrRoomNotFound = errors.New("room not found")
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ErrRoomFull = errors.New("room is full")
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ErrGameStarted = errors.New("game already started")
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ErrGameNotStarted = errors.New("game not started")
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ErrNotYourTurn = errors.New("not your turn")
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ErrPlayerNotFound = errors.New("player not found")
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ErrCardsNotInHand = errors.New("cards not in hand")
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ErrInvalidCardType = errors.New("invalid card type")
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ErrCannotBeat = errors.New("cannot beat last play")
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ErrCannotPass = errors.New("cannot pass")
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ErrNotEnoughPlayers = errors.New("not enough players")
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)
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type CardLogic struct{}
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func NewCardLogic() *CardLogic {
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return &CardLogic{}
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}
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func (cl *CardLogic) CreateDeck() []models.Card {
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deck := make([]models.Card, 0, 55)
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suits := []models.Suit{models.SuitHeart, models.SuitDiamond, models.SuitClub, models.SuitSpade}
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for _, suit := range suits {
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for value := 3; value <= 15; value++ {
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deck = append(deck, models.Card{Suit: suit, Value: value})
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}
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}
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deck = append(deck, models.Card{Suit: models.SuitJoker, Value: 16})
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deck = append(deck, models.Card{Suit: models.SuitJoker, Value: 17})
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deck = append(deck, models.Card{Suit: models.SuitSuper, Value: 18})
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return deck
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}
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func (cl *CardLogic) Shuffle(deck []models.Card) {
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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r.Shuffle(len(deck), func(i, j int) { deck[i], deck[j] = deck[j], deck[i] })
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}
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func (cl *CardLogic) SortCards(cards []models.Card) {
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sort.Slice(cards, func(i, j int) bool {
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if cards[i].Value != cards[j].Value {
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return cards[i].Value > cards[j].Value
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}
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return cards[i].Suit < cards[j].Suit
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})
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}
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func (cl *CardLogic) GetCardType(cards []models.Card) models.CardType {
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n := len(cards)
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if n == 0 {
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return models.CardTypeInvalid
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}
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if cl.isRocket(cards) {
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return models.CardTypeRocket
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}
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sorted := make([]models.Card, n)
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copy(sorted, cards)
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cl.SortCards(sorted)
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counts := cl.getValueCounts(sorted)
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switch n {
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case 1:
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return models.CardTypeSingle
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case 2:
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if len(counts) == 1 {
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return models.CardTypePair
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}
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return models.CardTypeInvalid
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case 3:
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if len(counts) == 1 {
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return models.CardTypeBomb
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}
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if cl.isStraight(sorted) {
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return models.CardTypeStraight
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}
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return models.CardTypeInvalid
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case 4:
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if len(counts) == 1 {
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return models.CardTypeBomb
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}
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if len(counts) == 2 {
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for _, c := range counts {
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if c == 3 {
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return models.CardTypeTripleOne
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}
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}
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}
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if cl.isStraight(sorted) {
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return models.CardTypeStraight
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}
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if cl.isDoubleStraight(sorted, counts) {
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return models.CardTypeDoubleStraight
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}
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return models.CardTypeInvalid
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default:
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if cl.isStraight(sorted) {
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return models.CardTypeStraight
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}
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if cl.isDoubleStraight(sorted, counts) {
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return models.CardTypeDoubleStraight
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}
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hasTriple := false
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for _, c := range counts {
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if c >= 3 {
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hasTriple = true
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break
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}
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}
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if hasTriple && (n == 4 || n == 5) {
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return models.CardTypeTripleOne
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}
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return models.CardTypeInvalid
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}
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}
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func (cl *CardLogic) isRocket(cards []models.Card) bool {
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if len(cards) != 2 {
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return false
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}
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hasSmall, hasBig := false, false
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for _, c := range cards {
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if c.Suit == models.SuitJoker {
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if c.Value == 16 {
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hasSmall = true
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} else if c.Value == 17 {
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hasBig = true
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}
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}
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}
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return hasSmall && hasBig
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}
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func (cl *CardLogic) isStraight(cards []models.Card) bool {
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if len(cards) < 3 {
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return false
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}
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for _, c := range cards {
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if c.Value >= 15 || c.Suit == models.SuitJoker || c.Suit == models.SuitSuper {
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return false
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}
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}
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values := make([]int, len(cards))
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for i, c := range cards {
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values[i] = c.Value
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}
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sort.Ints(values)
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for i := 1; i < len(values); i++ {
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if values[i] != values[i-1]+1 {
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return false
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}
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}
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return true
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}
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func (cl *CardLogic) isDoubleStraight(cards []models.Card, counts map[int]int) bool {
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if len(cards) < 4 || len(cards)%2 != 0 {
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return false
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}
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pairs := make([]int, 0)
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for v, c := range counts {
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if c != 2 {
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return false
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}
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if v >= 15 {
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return false
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}
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pairs = append(pairs, v)
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}
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sort.Ints(pairs)
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for i := 1; i < len(pairs); i++ {
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if pairs[i] != pairs[i-1]+1 {
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return false
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}
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}
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return true
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}
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func (cl *CardLogic) getValueCounts(cards []models.Card) map[int]int {
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counts := make(map[int]int)
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for _, c := range cards {
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counts[c.Value]++
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}
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return counts
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}
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func (cl *CardLogic) CanPlay(cards []models.Card, lastPlay *models.PlayRecord) bool {
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cardType := cl.GetCardType(cards)
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if cardType == models.CardTypeInvalid {
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return false
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}
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if lastPlay == nil {
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return true
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}
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if cardType == models.CardTypeRocket {
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return true
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}
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if cardType == models.CardTypeBomb {
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if lastPlay.CardType == models.CardTypeBomb {
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return cl.getMainValue(cards) > cl.getMainValue(lastPlay.Cards)
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}
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if lastPlay.CardType == models.CardTypeRocket {
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return false
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}
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return true
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}
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if lastPlay.CardType == models.CardTypeBomb || lastPlay.CardType == models.CardTypeRocket {
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return false
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}
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if cardType != lastPlay.CardType || len(cards) != len(lastPlay.Cards) {
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return false
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}
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return cl.getMainValue(cards) > cl.getMainValue(lastPlay.Cards)
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}
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func (cl *CardLogic) getMainValue(cards []models.Card) int {
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counts := cl.getValueCounts(cards)
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maxValue, maxCount := 0, 0
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for v, c := range counts {
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if c > maxCount || (c == maxCount && v > maxValue) {
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maxCount, maxValue = c, v
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}
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}
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return maxValue
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}
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type GameManager struct {
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rdb *redis.Client
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cl *CardLogic
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mu sync.RWMutex
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stopCleanup chan struct{}
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stopOnce sync.Once
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}
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func NewGameManager(rdb *redis.Client) *GameManager {
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gm := &GameManager{
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rdb: rdb,
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cl: NewCardLogic(),
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stopCleanup: make(chan struct{}),
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}
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go gm.cleanupLoop()
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return gm
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}
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func (gm *GameManager) CreateRoom(playerName string, maxPlayers int) (*models.Room, *models.Player) {
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return gm.CreateRoomWithUser("", playerName, maxPlayers)
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}
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func (gm *GameManager) CreateRoomWithUser(userID, playerName string, maxPlayers int) (*models.Room, *models.Player) {
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gm.mu.Lock()
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defer gm.mu.Unlock()
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ctx := context.Background()
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roomID := generateID()
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playerID := generateID()
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player := &models.Player{ID: playerID, UserID: userID, Name: playerName, IsOnline: true}
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room := &models.Room{
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ID: roomID,
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Players: []*models.Player{player},
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MaxPlayers: maxPlayers,
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State: models.RoomStateWaiting,
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}
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deck := gm.cl.CreateDeck()
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gm.cl.Shuffle(deck)
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gm.saveRoom(ctx, room)
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gm.saveDeck(ctx, roomID, deck)
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gm.saveDiscard(ctx, roomID, []models.Card{})
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return room, player
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}
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func (gm *GameManager) JoinRoom(roomID, playerName string) (*models.Room, *models.Player, error) {
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return gm.JoinRoomWithUser(roomID, "", playerName)
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}
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func (gm *GameManager) JoinRoomWithUser(roomID, userID, playerName string) (*models.Room, *models.Player, error) {
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gm.mu.Lock()
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defer gm.mu.Unlock()
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ctx := context.Background()
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room, err := gm.loadRoom(ctx, roomID)
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if err != nil {
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return nil, nil, ErrRoomNotFound
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}
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if len(room.Players) >= room.MaxPlayers {
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return nil, nil, ErrRoomFull
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}
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if room.State == models.RoomStatePlaying {
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return nil, nil, ErrGameStarted
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}
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playerID := generateID()
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player := &models.Player{ID: playerID, UserID: userID, Name: playerName, IsOnline: true}
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room.Players = append(room.Players, player)
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gm.saveRoom(ctx, room)
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return room, player, nil
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}
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func (gm *GameManager) LeaveRoom(roomID, playerID string) error {
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gm.mu.Lock()
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defer gm.mu.Unlock()
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ctx := context.Background()
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room, err := gm.loadRoom(ctx, roomID)
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if err != nil {
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return ErrRoomNotFound
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}
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for i, p := range room.Players {
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if p.ID == playerID {
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room.Players = append(room.Players[:i], room.Players[i+1:]...)
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if len(room.Players) == 0 {
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gm.deleteRoomData(ctx, roomID)
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} else {
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gm.saveRoom(ctx, room)
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}
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return nil
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}
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}
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return ErrPlayerNotFound
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}
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func (gm *GameManager) LeaveRoomWithTTL(roomID, playerID string) error {
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gm.mu.Lock()
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defer gm.mu.Unlock()
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ctx := context.Background()
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room, err := gm.loadRoom(ctx, roomID)
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if err != nil {
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return ErrRoomNotFound
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}
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for _, p := range room.Players {
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if p.ID == playerID {
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p.IsOnline = false
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gm.saveRoom(ctx, room)
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gm.rdb.Set(ctx, redis.PlayerTTLKey(playerID), time.Now().Add(redis.PlayerTTL).Unix(), redis.PlayerTTL)
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return nil
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}
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}
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return ErrPlayerNotFound
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}
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func (gm *GameManager) MarkPlayerOnline(roomID, playerID string) {
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gm.mu.Lock()
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defer gm.mu.Unlock()
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ctx := context.Background()
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room, err := gm.loadRoom(ctx, roomID)
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if err != nil {
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return
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}
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for _, p := range room.Players {
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if p.ID == playerID {
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p.IsOnline = true
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gm.saveRoom(ctx, room)
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gm.rdb.Delete(ctx, redis.PlayerTTLKey(playerID))
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return
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}
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}
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}
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func (gm *GameManager) MarkPlayerOffline(roomID, playerID string) {
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gm.mu.Lock()
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defer gm.mu.Unlock()
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ctx := context.Background()
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room, err := gm.loadRoom(ctx, roomID)
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if err != nil {
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return
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}
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for _, p := range room.Players {
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if p.ID == playerID {
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p.IsOnline = false
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gm.saveRoom(ctx, room)
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return
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}
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}
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}
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func (gm *GameManager) SetReady(roomID, playerID string, ready bool) error {
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gm.mu.Lock()
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defer gm.mu.Unlock()
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ctx := context.Background()
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room, err := gm.loadRoom(ctx, roomID)
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if err != nil {
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return ErrRoomNotFound
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}
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if room.State == models.RoomStatePlaying {
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return ErrGameStarted
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}
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|
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for _, p := range room.Players {
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if p.ID == playerID {
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p.IsReady = ready
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if room.State == models.RoomStateFinished {
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room.State = models.RoomStateWaiting
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}
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gm.saveRoom(ctx, room)
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return nil
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}
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}
|
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return ErrPlayerNotFound
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}
|
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|
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func (gm *GameManager) StartGame(roomID string) error {
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gm.mu.Lock()
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defer gm.mu.Unlock()
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ctx := context.Background()
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room, err := gm.loadRoom(ctx, roomID)
|
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if err != nil {
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return ErrRoomNotFound
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}
|
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if len(room.Players) < 2 {
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return ErrNotEnoughPlayers
|
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}
|
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if room.State == models.RoomStatePlaying {
|
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return ErrGameStarted
|
|
}
|
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|
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lastWinner := room.LastWinner
|
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|
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for _, p := range room.Players {
|
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p.Cards = make([]models.Card, 0)
|
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p.CardCount = 0
|
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p.IsReady = false
|
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}
|
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|
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deck := gm.cl.CreateDeck()
|
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gm.cl.Shuffle(deck)
|
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gm.saveDeck(ctx, roomID, deck)
|
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gm.saveDiscard(ctx, roomID, []models.Card{})
|
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|
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room.State = models.RoomStatePlaying
|
|
room.RoundCount = 1
|
|
room.LastPlay = nil
|
|
|
|
if lastWinner != "" {
|
|
for i, p := range room.Players {
|
|
if p.ID == lastWinner {
|
|
room.CurrentTurn = i
|
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break
|
|
}
|
|
}
|
|
} else {
|
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room.CurrentTurn = 0
|
|
}
|
|
|
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gm.dealCards(room, 5)
|
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gm.saveRoom(ctx, room)
|
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|
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return nil
|
|
}
|
|
|
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func (gm *GameManager) dealCards(room *models.Room, count int) {
|
|
ctx := context.Background()
|
|
deck, _ := gm.loadDeck(ctx, room.ID)
|
|
|
|
for i := 0; i < count; i++ {
|
|
for _, p := range room.Players {
|
|
if len(deck) == 0 {
|
|
deck, _ = gm.loadDiscard(ctx, room.ID)
|
|
gm.cl.Shuffle(deck)
|
|
gm.saveDiscard(ctx, room.ID, []models.Card{})
|
|
}
|
|
if len(deck) > 0 {
|
|
p.Cards = append(p.Cards, deck[0])
|
|
deck = deck[1:]
|
|
}
|
|
}
|
|
}
|
|
|
|
gm.saveDeck(ctx, room.ID, deck)
|
|
|
|
for _, p := range room.Players {
|
|
gm.cl.SortCards(p.Cards)
|
|
p.CardCount = len(p.Cards)
|
|
}
|
|
}
|
|
|
|
func (gm *GameManager) PlayCards(roomID, playerID string, cards []models.Card) error {
|
|
gm.mu.Lock()
|
|
defer gm.mu.Unlock()
|
|
|
|
ctx := context.Background()
|
|
room, err := gm.loadRoom(ctx, roomID)
|
|
if err != nil {
|
|
return ErrRoomNotFound
|
|
}
|
|
if room.State != models.RoomStatePlaying {
|
|
return ErrGameNotStarted
|
|
}
|
|
if room.Players[room.CurrentTurn].ID != playerID {
|
|
return ErrNotYourTurn
|
|
}
|
|
|
|
player := room.Players[room.CurrentTurn]
|
|
if !gm.hasCards(player, cards) {
|
|
return ErrCardsNotInHand
|
|
}
|
|
|
|
cardType := gm.cl.GetCardType(cards)
|
|
if cardType == models.CardTypeInvalid {
|
|
return ErrInvalidCardType
|
|
}
|
|
if !gm.cl.CanPlay(cards, room.LastPlay) {
|
|
return ErrCannotBeat
|
|
}
|
|
|
|
gm.removeCards(player, cards)
|
|
player.CardCount = len(player.Cards)
|
|
|
|
room.LastPlay = &models.PlayRecord{
|
|
PlayerID: playerID,
|
|
Cards: cards,
|
|
CardType: cardType,
|
|
}
|
|
|
|
discard, _ := gm.loadDiscard(ctx, roomID)
|
|
discard = append(discard, cards...)
|
|
gm.saveDiscard(ctx, roomID, discard)
|
|
|
|
if len(player.Cards) == 0 {
|
|
room.LastWinner = playerID
|
|
room.State = models.RoomStateFinished
|
|
gm.rdb.Set(ctx, redis.RoomTTLKey(roomID), time.Now().Add(redis.RoomTTL).Unix(), redis.RoomTTL)
|
|
} else {
|
|
room.CurrentTurn = (room.CurrentTurn + 1) % len(room.Players)
|
|
}
|
|
|
|
gm.saveRoom(ctx, room)
|
|
return nil
|
|
}
|
|
|
|
func (gm *GameManager) Pass(roomID, playerID string) error {
|
|
gm.mu.Lock()
|
|
defer gm.mu.Unlock()
|
|
|
|
ctx := context.Background()
|
|
room, err := gm.loadRoom(ctx, roomID)
|
|
if err != nil {
|
|
return ErrRoomNotFound
|
|
}
|
|
if room.State != models.RoomStatePlaying {
|
|
return ErrGameNotStarted
|
|
}
|
|
if room.Players[room.CurrentTurn].ID != playerID {
|
|
return ErrNotYourTurn
|
|
}
|
|
if room.LastPlay == nil || room.LastPlay.PlayerID == playerID {
|
|
return ErrCannotPass
|
|
}
|
|
|
|
room.CurrentTurn = (room.CurrentTurn + 1) % len(room.Players)
|
|
|
|
// 一轮结束：回到最后出牌者，发牌并让他先出
|
|
if room.Players[room.CurrentTurn].ID == room.LastPlay.PlayerID {
|
|
winnerID := room.LastPlay.PlayerID
|
|
room.LastPlay = nil
|
|
room.RoundCount++
|
|
gm.dealCards(room, 1)
|
|
|
|
for i, p := range room.Players {
|
|
if p.ID == winnerID {
|
|
room.CurrentTurn = i
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
gm.saveRoom(ctx, room)
|
|
return nil
|
|
}
|
|
|
|
func (gm *GameManager) GetRoom(roomID string) (*models.Room, error) {
|
|
gm.mu.RLock()
|
|
defer gm.mu.RUnlock()
|
|
return gm.loadRoom(context.Background(), roomID)
|
|
}
|
|
|
|
func (gm *GameManager) GetPlayerName(roomID, playerID string) string {
|
|
gm.mu.RLock()
|
|
defer gm.mu.RUnlock()
|
|
|
|
room, err := gm.loadRoom(context.Background(), roomID)
|
|
if err != nil {
|
|
return ""
|
|
}
|
|
|
|
for _, p := range room.Players {
|
|
if p.ID == playerID {
|
|
return p.Name
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func (gm *GameManager) GetPlayerIDByUserID(roomID, userID string) string {
|
|
gm.mu.RLock()
|
|
defer gm.mu.RUnlock()
|
|
|
|
room, err := gm.loadRoom(context.Background(), roomID)
|
|
if err != nil {
|
|
return ""
|
|
}
|
|
|
|
for _, p := range room.Players {
|
|
if p.UserID == userID {
|
|
return p.ID
|
|
}
|
|
}
|
|
return ""
|
|
}
|
|
|
|
func (gm *GameManager) GetRoomState(roomID, playerID string) *models.Room {
|
|
gm.mu.RLock()
|
|
defer gm.mu.RUnlock()
|
|
|
|
room, err := gm.loadRoom(context.Background(), roomID)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
|
|
players := make([]*models.Player, len(room.Players))
|
|
for i, p := range room.Players {
|
|
pp := &models.Player{
|
|
ID: p.ID,
|
|
Name: p.Name,
|
|
IsReady: p.IsReady,
|
|
IsOnline: p.IsOnline,
|
|
CardCount: p.CardCount,
|
|
}
|
|
if p.ID == playerID {
|
|
pp.Cards = p.Cards
|
|
}
|
|
players[i] = pp
|
|
}
|
|
|
|
return &models.Room{
|
|
ID: room.ID,
|
|
Players: players,
|
|
CurrentTurn: room.CurrentTurn,
|
|
State: room.State,
|
|
LastPlay: room.LastPlay,
|
|
LastWinner: room.LastWinner,
|
|
RoundCount: room.RoundCount,
|
|
MaxPlayers: room.MaxPlayers,
|
|
}
|
|
}
|
|
|
|
func (gm *GameManager) hasCards(player *models.Player, cards []models.Card) bool {
|
|
hand := make(map[string]int)
|
|
for _, c := range player.Cards {
|
|
hand[cardKey(c)]++
|
|
}
|
|
for _, c := range cards {
|
|
k := cardKey(c)
|
|
if hand[k] == 0 {
|
|
return false
|
|
}
|
|
hand[k]--
|
|
}
|
|
return true
|
|
}
|
|
|
|
func (gm *GameManager) removeCards(player *models.Player, cards []models.Card) {
|
|
toRemove := make(map[string]int)
|
|
for _, c := range cards {
|
|
toRemove[cardKey(c)]++
|
|
}
|
|
newCards := make([]models.Card, 0)
|
|
removed := make(map[string]int)
|
|
for _, c := range player.Cards {
|
|
k := cardKey(c)
|
|
if removed[k] < toRemove[k] {
|
|
removed[k]++
|
|
} else {
|
|
newCards = append(newCards, c)
|
|
}
|
|
}
|
|
player.Cards = newCards
|
|
}
|
|
|
|
func (gm *GameManager) cleanupLoop() {
|
|
ticker := time.NewTicker(5 * time.Minute)
|
|
defer ticker.Stop()
|
|
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
gm.cleanupExpired()
|
|
case <-gm.stopCleanup:
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func (gm *GameManager) cleanupExpired() {
|
|
gm.mu.Lock()
|
|
defer gm.mu.Unlock()
|
|
|
|
ctx := context.Background()
|
|
|
|
gm.rdb.ScanKeys(ctx, "room:*:ttl", func(key string) error {
|
|
var expiryTime int64
|
|
if err := gm.rdb.Get(ctx, key, &expiryTime); err != nil {
|
|
return nil
|
|
}
|
|
if time.Now().Unix() > expiryTime {
|
|
roomID := key[len("room:") : len(key)-len(":ttl")]
|
|
gm.deleteRoomData(ctx, roomID)
|
|
}
|
|
return nil
|
|
})
|
|
|
|
gm.rdb.ScanKeys(ctx, "player:*:ttl", func(key string) error {
|
|
var expiryTime int64
|
|
if err := gm.rdb.Get(ctx, key, &expiryTime); err != nil {
|
|
return nil
|
|
}
|
|
if time.Now().Unix() > expiryTime {
|
|
playerID := key[len("player:") : len(key)-len(":ttl")]
|
|
gm.rdb.Delete(ctx, redis.PlayerKey(playerID), redis.PlayerTTLKey(playerID))
|
|
}
|
|
return nil
|
|
})
|
|
}
|
|
|
|
func (gm *GameManager) Stop() {
|
|
gm.stopOnce.Do(func() {
|
|
close(gm.stopCleanup)
|
|
})
|
|
}
|
|
|
|
func (gm *GameManager) saveRoom(ctx context.Context, room *models.Room) {
|
|
gm.rdb.Set(ctx, redis.RoomKey(room.ID), room, redis.RoomTTL)
|
|
}
|
|
|
|
func (gm *GameManager) loadRoom(ctx context.Context, roomID string) (*models.Room, error) {
|
|
var room models.Room
|
|
if err := gm.rdb.Get(ctx, redis.RoomKey(roomID), &room); err != nil {
|
|
return nil, err
|
|
}
|
|
return &room, nil
|
|
}
|
|
|
|
func (gm *GameManager) saveDeck(ctx context.Context, roomID string, deck []models.Card) {
|
|
gm.rdb.Set(ctx, redis.RoomDeckKey(roomID), deck, redis.RoomTTL)
|
|
}
|
|
|
|
func (gm *GameManager) loadDeck(ctx context.Context, roomID string) ([]models.Card, error) {
|
|
var deck []models.Card
|
|
if err := gm.rdb.Get(ctx, redis.RoomDeckKey(roomID), &deck); err != nil {
|
|
return nil, err
|
|
}
|
|
return deck, nil
|
|
}
|
|
|
|
func (gm *GameManager) saveDiscard(ctx context.Context, roomID string, discard []models.Card) {
|
|
gm.rdb.Set(ctx, redis.RoomDiscardKey(roomID), discard, redis.RoomTTL)
|
|
}
|
|
|
|
func (gm *GameManager) loadDiscard(ctx context.Context, roomID string) ([]models.Card, error) {
|
|
var discard []models.Card
|
|
if err := gm.rdb.Get(ctx, redis.RoomDiscardKey(roomID), &discard); err != nil {
|
|
return nil, err
|
|
}
|
|
return discard, nil
|
|
}
|
|
|
|
func (gm *GameManager) deleteRoomData(ctx context.Context, roomID string) {
|
|
room, err := gm.loadRoom(ctx, roomID)
|
|
if err == nil {
|
|
for _, p := range room.Players {
|
|
gm.rdb.Delete(ctx, redis.PlayerKey(p.ID), redis.PlayerTTLKey(p.ID))
|
|
}
|
|
}
|
|
gm.rdb.Delete(ctx,
|
|
redis.RoomKey(roomID),
|
|
redis.RoomDeckKey(roomID),
|
|
redis.RoomDiscardKey(roomID),
|
|
redis.RoomTTLKey(roomID),
|
|
)
|
|
}
|
|
|
|
func generateID() string {
|
|
const charset = "abcdefghijklmnopqrstuvwxyz0123456789"
|
|
b := make([]byte, 8)
|
|
for i := range b {
|
|
b[i] = charset[rand.Intn(len(charset))]
|
|
}
|
|
return string(b)
|
|
}
|
|
|
|
func cardKey(c models.Card) string {
|
|
data, _ := json.Marshal(c)
|
|
return string(data)
|
|
}
|