prototype.go

package main

import "fmt"

var dataHistoryList map[int]Fighter
type Fighter interface{
	GetId() FighterType
	Fight()
	Clone() Fighter
}

type Soldier struct {
	id FighterType
	gunHit int
	life int
	mana int
}

type FighterType int
const (
	SoldierType FighterType = 1
	ElfType = 2
	DwarfType = 3
)
func NewSoldier(gunHit,life,mana int) Soldier{
	soldier := Soldier{SoldierType,gunHit,life,mana}
	return soldier
}

func (s Soldier) GetId() FighterType{
	return s.id
}
func (s Soldier)Clone() Fighter  {
	return NewSoldier(s.gunHit,s.life,s.mana)
}
func (s Soldier)Fight(){
	fmt.Println("Soldier Gun Hit-Points :",s.gunHit)
}

type Elf struct {
	id FighterType
	arrowHit int
	life int
	mana int
}
func NewElf(arrowHit,life,mana int) Elf{
	elf := Elf{ElfType,arrowHit,life,mana}
	return elf
}

func (e Elf) GetId() FighterType{
	return e.id
}
func (e Elf)Clone()Fighter  {
	return NewElf(e.arrowHit,e.life,e.mana)
}
func (e Elf)Fight(){
	fmt.Println("Elf Arrow Hit-Points :",e.arrowHit)
}

type Dwarf struct{
	id FighterType
	axePoint int
	life int
	mana int
}
func NewDwarf(axePoint,life,mana int) Dwarf{
	dwarf := Dwarf{DwarfType,axePoint,life,mana}
	return dwarf
}

func (d Dwarf) GetId() FighterType{
	return d.id
}
func (d Dwarf)Clone()Fighter  {
	return NewDwarf(d.axePoint,d.life,d.mana)
}
func (d Dwarf)Fight(){
	fmt.Println("Dwarf Axe Hit-Points :",d.axePoint)
}

func loadCache(){
	soldier :=NewSoldier(30,20,5)
	elf := NewElf(15,30,3)
	dwarf := NewDwarf(50,40,15)
	dataHistoryList = make(map[int]Fighter)
	dataHistoryList[int(soldier.id)]=soldier
	dataHistoryList[int(elf.id)]=elf
	dataHistoryList[int(dwarf.id)]=dwarf
}

func main() {
	loadCache()
	fighter :=dataHistoryList[int(SoldierType)]
	f,ok := fighter.(Soldier)
	if(ok){
		f.gunHit=45
		f.Fight()
	}
	fighter2 :=dataHistoryList[int(SoldierType)]
	fighter2.Fight()

	elf :=dataHistoryList[int(ElfType)]
	elf.Fight()

	dwarf :=dataHistoryList[int(DwarfType)]
	dwarf.Fight()
}