Go Survik 'oop'
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package main
import "fmt"
var totalItemsCreated int = 0
type Item struct {
name string
description string
useTime int
useCount int
}
func NewItem(name, description string, useTime int) *Item {
totalItemsCreated += 1
return &Item{name: name, description: description, useTime: useTime, useCount: 0}
}
func (i *Item) Use() string {
i.useCount += 1
return fmt.Sprintf("Používá se %s (%s), což trvá %d sekund. Počet použití: %d.", i.name, i.description, i.useTime, i.useCount)
}
func GetTotalItemsCreated() int {
return totalItemsCreated
}
type Survik struct {
name string
item *Item
}
func NewSurvik(name string, item *Item) *Survik {
return &Survik{name: name, item: item}
}
func (s *Survik) SetItem(item *Item) {
s.item = item
}
func (s *Survik) UseItem() {
itemLine := s.item.Use()
fmt.Printf("%s používá %s: %s\n", s.name, s.item.name, itemLine)
}
func main() {
baterka := NewItem("Baterka", "osvětluje cestu", 0)
fmt.Println(baterka.Use())
lekarnicka := NewItem("Lékárnička", "léčí zranění", 20)
fmt.Println(lekarnicka.Use())
fmt.Println(GetTotalItemsCreated())
pepa := NewSurvik("Pepik the survik", baterka)
pepa.UseItem()
pepa.SetItem(lekarnicka)
pepa.UseItem()
}
Go
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