learn_go/cards/deck.go

49 lines
966 B
Go

package main
import (
"fmt"
"io/ioutil"
"strings"
)
type deck []string
func (d deck) print() {
for i, card := range d {
fmt.Println(i, card)
}
}
func newDeck() deck {
cards := deck{}
cardSuits := []string{"Spades", "Diamonds", "Hearts", "Clubs"}
cardValues := []string{"Ace", "Two", "Three", "Four"}
for _, suite := range cardSuits {
for _, value := range cardValues {
cards = append(cards, value+" of "+suite)
}
}
return cards
}
func deal(d deck, handsize int) (deck, deck) {
return d[:handsize], d[handsize:]
}
func (d deck) toString(seperator string) string {
return strings.Join(d, "\n")
}
func fromString(input []byte, seperator string) deck {
return strings.Split(string(input), seperator)
}
func (d deck) save(filename string) error {
return ioutil.WriteFile(filename, []byte(d.toString("\n")), 0644)
}
func load(filename string) (deck, error) {
bytes, err := ioutil.ReadFile(filename)
return fromString(bytes, "\n"), err
}