package game

import (
	"fmt"
	"runtime"
	"strconv"
	"strings"
	"sync"
)

//获取线程ID
func GoID() int {
	var buf [64]byte
	n := runtime.Stack(buf[:], false)
	idField := strings.Fields(strings.TrimPrefix(string(buf[:n]), "goroutine "))[0]
	id, err := strconv.Atoi(idField)
	if err != nil {
		panic(fmt.Sprintf("cannot get goroutine id: %v", err))
	}
	return id
}

var _uuidIntMap = make(map[string]int)
var _uuidIntLock sync.Mutex

//获取int型的自增ID
func GetUuidInt(key string) int {
	_uuidIntLock.Lock()
	id := _uuidIntMap[key]
	nextID := id + 1
	if nextID > 1000000000 {
		nextID = 0
	}
	_uuidIntMap[key] = nextID
	_uuidIntLock.Unlock()
	return id
}