snengame/internal/game/deck.go

53 lines
897 B
Go
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package game
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import (
"math/rand"
"time"
)
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type Deck struct {
Cards []Card `json:"cards"`
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}
func NewDeck() *Deck {
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cards := []Card{NewCard(0)}
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for i := 0; i < 3; i++ {
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for j := 1; j < 9; j++ {
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cards = append(cards, Card(NewCard(j)))
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}
}
return &Deck{
Cards: cards,
}
}
func (d *Deck) Shuffle() {
cards := d.Cards
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for i := range cards {
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j := r.Intn(i + 1)
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cards[i], cards[j] = cards[j], cards[i]
}
d.Cards = cards
}
func (d *Deck) Scry(s int) []Card {
seen := []Card{}
if len(d.Cards) < s {
seen = d.Cards
d.Cards = []Card{}
return seen
}
seen = d.Cards[(len(d.Cards) - s):len(d.Cards)]
d.Cards = d.Cards[0 : len(d.Cards)-s]
return seen
}
func (d *Deck) Bottom(result []Card) {
d.Cards = append(result, d.Cards...) //Should shuffle result first?
}
func (d *Deck) Size() int {
return len(d.Cards)
}