/
deck.go
62 lines (51 loc) · 1.23 KB
/
deck.go
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package main
import (
"errors"
"log"
"math/rand"
"github.com/hajimehoshi/ebiten/v2/ebitenutil"
"github.com/spf13/viper"
"github.com/hajimehoshi/ebiten/v2"
)
type Deck struct {
cards []Card
cardBack *ebiten.Image
}
func NewDeck() *Deck {
d := Deck{}
img, _, err := ebitenutil.NewImageFromFile("assets/card.backgc.jpeg")
if err != nil {
log.Fatal(err)
}
d.cardBack = img
for _, c := range Cards {
for i := 0; i < c.Count; i++ {
d.Insert(c)
}
}
return &d
}
func (d *Deck) Insert(c Card) {
d.cards = append(d.cards, c)
}
func (d *Deck) DrawCard() (Card, error) {
if len(d.cards) == 0 {
return Card{}, errors.New("deck: no cards left")
}
card := d.cards[len(d.cards)-1]
d.cards = d.cards[:len(d.cards)-1]
return card, nil
}
func (d *Deck) Shuffle(seed int64) {
rand.Seed(seed)
rand.Shuffle(len(d.cards), func(i, j int) {
d.cards[i], d.cards[j] = d.cards[j], d.cards[i]
})
}
func (d *Deck) DrawImage(target *ebiten.Image) {
if len(d.cards) > 0 {
op := ResizeTo(d.cardBack, nil, viper.GetInt("layout.card.medium.width"), viper.GetInt("layout.card.medium.height"))
op.GeoM.Translate(float64(viper.GetInt("layout.deck.startX")), float64(viper.GetInt("layout.deck.startY")))
target.DrawImage(d.cardBack, op)
}
}