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client.go
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client.go
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package main
// Client model logic. A client can be considered a User.
import (
"github.com/Starbow/erosd/buffers"
"github.com/coopernurse/gorp"
"log"
"sync"
"time"
)
var _ = log.Ldate
type ClientLockoutManager struct {
locks map[int64]*sync.RWMutex
sync.RWMutex
}
type ClientCache struct {
clients map[int64]*Client
sync.RWMutex
}
var clientCache *ClientCache
var clientLockouts *ClientLockoutManager
var clientVetoes map[int64][]*Map
var clientCharacters map[int64][]*BattleNetCharacter
var clientRegionStats map[int64]map[BattleNetRegion]*ClientRegionStats
func initClientCaches() {
clientCache = &ClientCache{
clients: make(map[int64]*Client),
}
clientLockouts = &ClientLockoutManager{
locks: make(map[int64]*sync.RWMutex),
}
clientVetoes = make(map[int64][]*Map)
clientCharacters = make(map[int64][]*BattleNetCharacter)
clientRegionStats = make(map[int64]map[BattleNetRegion]*ClientRegionStats)
}
func (cl *ClientLockoutManager) LockId(id int64) {
cl.Lock()
lock, ok := cl.locks[id]
if !ok {
var newLock sync.RWMutex
lock = &newLock
cl.locks[id] = lock
}
cl.Unlock()
lock.Lock()
}
func (cl *ClientLockoutManager) UnlockId(id int64) {
cl.Lock()
lock, ok := cl.locks[id]
if !ok {
var newLock sync.RWMutex
lock = &newLock
cl.locks[id] = lock
}
cl.Unlock()
lock.Unlock()
}
func (cl *ClientLockoutManager) LockIds(id ...int64) {
for x := range id {
cl.LockId(id[x])
}
}
func (cl *ClientLockoutManager) UnlockIds(id ...int64) {
for x := range id {
cl.UnlockId(id[x])
}
}
type Client struct {
Id int64 `db:"id"`
//Nickname
Username string `db:"username"`
//Record TrueSkill for posterity
RatingMean float64 `db:"rating_mean"` // TrueSkill Mean
RatingStdDev float64 `db:"rating_stddev"` // TrueSkill Standard Deviation
LadderPoints int64 `db:"ladder_points"` // Global ladder points
//Display this ranking to the world.
LadderSearchRadius int64 `db:"ladder_search_radius"` // Search Radius.
LadderSearchRegion int64 `db:"ladder_search_region"`
PendingMatchmakingId *int64 `db:"matchmaking_pending_match_id"`
PendingMatchmakingOpponentId *int64 `db:"matchmaking_pending_opponent_id"`
PendingMatchmakingRegion int64 `db:"matchmaking_pending_region"`
Wins int64 `db:"ladder_wins"`
Losses int64 `db:"ladder_losses"`
Forfeits int64 `db:"ladder_forefeits"`
Walkovers int64 `db:"ladder_walkovers"`
DivisionId *int64 `db:"division_id"`
PlacementMatchesRemaining int64 `db:"placement_matches_remaining"`
// Transient
chatLastMessageTime time.Time
chatDelayScale float64
Division *Division
DivisionRank int64
LadderSearchRegions []BattleNetRegion
}
func (this *Client) UpdateDivisionRank(ex gorp.SqlExecutor) error {
this.DivisionRank = 0
if this.DivisionId != nil {
if *this.DivisionId > 0 {
result, err := ex.SelectInt("SELECT COUNT(*) from clients WHERE division_id=? AND ladder_points > (SELECT ladder_points FROM clients WHERE id=?)", *this.DivisionId, this.Id)
if err != nil {
log.Println(err)
return nil
}
this.DivisionRank = result + 1 //Zero indexed
}
}
return nil
}
func (this *Client) PreUpdate(_ gorp.SqlExecutor) error {
if this.Division == nil {
this.DivisionId = nil
} else {
this.DivisionId = &this.Division.Id
}
this.LadderSearchRegion = 0
for _, region := range this.LadderSearchRegions {
this.LadderSearchRegion += 1 << uint(region)
}
return nil
}
func (this *Client) PostUpdate(ex gorp.SqlExecutor) error {
return this.UpdateDivisionRank(ex)
}
func (this *Client) PostGet(ex gorp.SqlExecutor) error {
if this.DivisionId != nil {
for _, division := range divisions {
if division.Id == *this.DivisionId {
this.Division = division
break
}
}
}
this.LadderSearchRegions = make([]BattleNetRegion, 0, 5)
if (this.LadderSearchRegion & 1 << uint(BATTLENET_REGION_NA)) == (1 << uint(BATTLENET_REGION_NA)) {
this.LadderSearchRegions = append(this.LadderSearchRegions, BATTLENET_REGION_NA)
}
if (this.LadderSearchRegion & 1 << uint(BATTLENET_REGION_EU)) == (1 << uint(BATTLENET_REGION_EU)) {
this.LadderSearchRegions = append(this.LadderSearchRegions, BATTLENET_REGION_EU)
}
if (this.LadderSearchRegion & 1 << uint(BATTLENET_REGION_KR)) == (1 << uint(BATTLENET_REGION_KR)) {
this.LadderSearchRegions = append(this.LadderSearchRegions, BATTLENET_REGION_KR)
}
if (this.LadderSearchRegion & 1 << uint(BATTLENET_REGION_CN)) == (1 << uint(BATTLENET_REGION_CN)) {
this.LadderSearchRegions = append(this.LadderSearchRegions, BATTLENET_REGION_CN)
}
if (this.LadderSearchRegion & 1 << uint(BATTLENET_REGION_SEA)) == (1 << uint(BATTLENET_REGION_SEA)) {
this.LadderSearchRegions = append(this.LadderSearchRegions, BATTLENET_REGION_SEA)
}
err := this.UpdateDivisionRank(ex)
return err
}
type ClientRegionStats struct {
Id int64 `db:"id"`
ClientId *int64 `db:"client_id"`
Region BattleNetRegion `db:"region"`
//Record TrueSkill for posterity
RatingMean float64 `db:"rating_mean"` // TrueSkill Mean
RatingStdDev float64 `db:"rating_stddev"` // TrueSkill Standard Deviation
LadderPoints int64 `db:"ladder_points"` // ladder points
Wins int64 `db:"ladder_wins"`
Losses int64 `db:"ladder_losses"`
Forfeits int64 `db:"ladder_forefeits"`
Walkovers int64 `db:"ladder_walkovers"`
DivisionId *int64 `db:"division_id"`
PlacementMatchesRemaining int64 `db:"placement_matches_remaining"`
// Transient
Division *Division
DivisionRank int64
}
func (this *ClientRegionStats) UpdateDivisionRank(ex gorp.SqlExecutor) error {
this.DivisionRank = 0
if this.DivisionId != nil {
if *this.DivisionId > 0 {
result, err := ex.SelectInt("SELECT COUNT(*) from client_region_stats WHERE division_id=? AND region=? AND ladder_points > (SELECT ladder_points FROM client_region_stats WHERE client_id=? AND region=?);", *this.DivisionId, this.Region, *this.ClientId, this.Region)
if err != nil {
log.Println(err)
return nil
}
this.DivisionRank = result + 1 //Zero indexed.
}
}
return nil
}
func (this *ClientRegionStats) PreUpdate(_ gorp.SqlExecutor) error {
if this.Division == nil {
this.DivisionId = nil
} else {
this.DivisionId = &this.Division.Id
}
return nil
}
func (this *ClientRegionStats) PostUpdate(ex gorp.SqlExecutor) error {
return this.UpdateDivisionRank(ex)
}
func (this *ClientRegionStats) PostGet(ex gorp.SqlExecutor) error {
if this.DivisionId != nil {
for _, division := range divisions {
if division.Id == *this.DivisionId {
this.Division = division
break
}
}
}
return this.UpdateDivisionRank(ex)
}
func NewClient(id int64) *Client {
client := &Client{
Id: id,
RatingMean: 25,
RatingStdDev: float64(25) / float64(3),
LadderSearchRadius: 1,
LadderPoints: ladderStartingPoints,
chatLastMessageTime: time.Now(),
chatDelayScale: 1,
PlacementMatchesRemaining: ladder.getInitialPlacementMatches(),
}
return client
}
func (c *Client) Vetoes() (vetoes []*Map, err error) {
clientLockouts.LockId(c.Id)
vetoes, ok := clientVetoes[c.Id]
if !ok {
vetoRows, err := dbMap.Select(&MapVeto{}, "SELECT * FROM map_vetoes WHERE ClientId=?", c.Id)
vetoes = make([]*Map, 0, 15)
if err == nil {
for x := range vetoRows {
v := vetoRows[x].(*MapVeto)
m, ok := maps[v.MapId]
if ok {
vetoes = append(vetoes, m)
}
}
clientVetoes[c.Id] = vetoes
} else {
log.Println(err, c.Id)
return nil, err
}
}
clientLockouts.UnlockId(c.Id)
return vetoes, nil
}
func (c *Client) Refresh() {
clientLockouts.LockId(c.Id)
defer clientLockouts.UnlockId(c.Id)
err := dbMap.SelectOne(c, "SELECT * FROM clients WHERE id=? LIMIT 1", c.Id)
if err != nil {
log.Println("Error refreshing client", c.Id)
}
if _, ok := clientRegionStats[c.Id]; ok {
for x := range clientRegionStats[c.Id] {
clientRegionStats[c.Id][x].Refresh()
}
}
delete(clientCharacters, c.Id)
delete(clientVetoes, c.Id)
}
func (c *Client) IsOnline() bool {
for _, v := range clientConnections {
if v == nil {
continue
}
if v.client.Id == c.Id {
return true
}
}
return false
}
func (c *ClientCache) Get(id int64) *Client {
c.RLock()
client, ok := c.clients[id]
if !ok {
//Concurrently acquiring the lock like this is probably terrible.
c.RUnlock()
c.Lock()
defer c.Unlock()
var newClient Client
err := dbMap.SelectOne(&newClient, "SELECT * FROM clients WHERE id=? LIMIT 1", id)
if err != nil || newClient.Id == 0 {
return nil
}
client = &newClient
client.chatLastMessageTime = time.Now()
client.chatDelayScale = 1
c.clients[id] = client
} else {
defer c.RUnlock()
}
return client
}
func (c *Client) GetLadderPoints(region BattleNetRegion) int64 {
stats, err := c.RegionStats(region)
if err != nil {
return 0
} else {
return stats.LadderPoints
}
}
// Run after a game ends. Checks to see if the client's division needs to be updated.
func (client *Client) PostGame(region BattleNetRegion) {
regionStats, err := client.RegionStats(region)
if err != nil {
return
}
if client.PlacementMatchesRemaining > 0 {
client.PlacementMatchesRemaining -= 1
}
// division, _ := divisions.GetDivision(client.RatingMean)
division, _ := divisions.GetDivision(client.LadderPoints)
// if client.PlacementMatchesRemaining == 0 && client.Division == nil {
if client.PlacementMatchesRemaining == 0 {
client.Division = division
}
// if client.Division != nil {
// if client.RatingMean < client.Division.PromotionThreshold {
// if client.RatingMean < client.Division.DemotionThreshold {
// client.Division = division
// }
// } else if client.Division != division {
// client.Division = division
// }
// }
if regionStats.PlacementMatchesRemaining > 0 {
regionStats.PlacementMatchesRemaining -= 1
}
// division, _ = divisions.GetDivision(regionStats.RatingMean)
division, _ = divisions.GetDivision(regionStats.LadderPoints)
if regionStats.PlacementMatchesRemaining == 0 {
regionStats.Division = division
}
// if regionStats.Division != nil {
// if regionStats.RatingMean < regionStats.Division.PromotionThreshold {
// if regionStats.RatingMean < regionStats.Division.DemotionThreshold {
// client.Division = division
// }
// } else if regionStats.Division != division {
// regionStats.Division = division
// }
// }
}
// Have Client c defeat Client o and update their ratings.
func (client *Client) Defeat(opponent *Client, region BattleNetRegion) float64 {
// Update W/L
client.Wins += 1
opponent.Losses += 1
var quality float64
client.LadderPoints, opponent.LadderPoints = ladder.CalculateNewPoints(client.LadderPoints, opponent.LadderPoints, client.Division, opponent.Division)
client.RatingMean, client.RatingStdDev, opponent.RatingMean, opponent.RatingStdDev, quality = calculateNewRating(client.Id, opponent.Id, client.RatingMean, client.RatingStdDev, opponent.RatingMean, opponent.RatingStdDev)
regionStats, err := client.RegionStats(region)
if err != nil {
return quality
}
opponentRegionStats, err := opponent.RegionStats(region)
if err != nil {
return quality
}
regionStats.LadderPoints, opponentRegionStats.LadderPoints = ladder.CalculateNewPoints(regionStats.LadderPoints, opponentRegionStats.LadderPoints, regionStats.Division, opponentRegionStats.Division)
regionStats.RatingMean, regionStats.RatingStdDev, opponentRegionStats.RatingMean, opponentRegionStats.RatingStdDev, quality = calculateNewRating(client.Id, opponent.Id, regionStats.RatingMean, regionStats.RatingStdDev, opponentRegionStats.RatingMean, opponentRegionStats.RatingStdDev)
regionStats.Wins += 1
opponentRegionStats.Losses += 1
client.PostGame(region)
opponent.PostGame(region)
dbMap.Update(regionStats, opponentRegionStats, client, opponent)
log.Println(client.Username, client.LadderPoints, "defeated", opponent.Username, opponent.LadderPoints)
return quality
}
func (c *Client) ForfeitMatchmadeMatch() {
if c.PendingMatchmakingId != nil {
var opponent *Client = nil
if c.PendingMatchmakingOpponentId != nil {
opponent = clientCache.Get(*c.PendingMatchmakingOpponentId)
}
if opponent.PendingMatchmakingId != nil && *opponent.PendingMatchmakingId == *c.PendingMatchmakingId {
opponent.Defeat(c, BattleNetRegion(c.PendingMatchmakingRegion))
c.Forfeits += 1
opponent.Walkovers += 1
matchmaker.EndMatch(*c.PendingMatchmakingId)
dbMap.Update(c, opponent)
log.Println(c.Username, "forfeited")
go func() {
c.BroadcastStatsMessage()
c.BroadcastMatchmakingIdle()
}()
go func() {
opponent.BroadcastStatsMessage()
opponent.BroadcastMatchmakingIdle()
}()
} else {
matchmaker.EndMatch(*c.PendingMatchmakingId)
}
}
}
// Check if the client is matched against the opponent in matchmaking.
func (c *Client) IsMatchedWith(opponent *Client) bool {
if c.PendingMatchmakingId == nil {
return true
}
return (*c.PendingMatchmakingOpponentId == opponent.Id)
}
// Check if the client is matched against the opponent in matchmaking.
func (c *Client) IsOnMap(id int64) bool {
if c.PendingMatchmakingId == nil {
return true
}
match := matchmaker.Match(*c.PendingMatchmakingId)
if match == nil {
return true
}
return (match.MapId != nil && *match.MapId == id)
}
// Generate a UserStats protocol buffer message from this client.
func (c *Client) UserStatsMessage() *protobufs.UserStats {
vetoes, _ := c.Vetoes()
var user protobufs.UserStats
user.Points = &c.LadderPoints
user.Username = &c.Username
user.SearchRadius = &c.LadderSearchRadius
user.Wins = &c.Wins
user.Losses = &c.Losses
user.Walkovers = &c.Walkovers
user.Forfeits = &c.Forfeits
user.Region = make([]*protobufs.UserRegionStats, 0, len(ladderActiveRegions))
user.Vetoes = make([]*protobufs.Map, 0, len(vetoes))
divisionId := int64(0)
if c.Division == nil {
c.Division, c.DivisionRank = divisions.GetDivision(c.LadderPoints);
}
divisionId = c.Division.Id
user.PlacementsRemaining = &c.PlacementMatchesRemaining
user.Division = &divisionId
user.DivisionRank = &c.DivisionRank
user.Mmr = &c.RatingMean
user.Id = &c.Id
for _, region := range ladderActiveRegions {
stats, err := c.RegionStats(region)
if stats != nil && err == nil {
user.Region = append(user.Region, stats.UserRegionStatsMessage())
} else {
log.Println(region, err, stats)
}
}
for _, veto := range vetoes {
user.Vetoes = append(user.Vetoes, veto.MapMessage())
}
return &user
}
// Broadcast a stats message to this client if they are connected.
func (c *Client) BroadcastStatsMessage() {
message := c.UserStatsMessage()
c.Broadcast("USU", message)
}
func (c *Client) BroadcastMatchmakingIdle() {
c.Broadcast("MMI", nil)
}
// Check if the client can queue in this region.
func (c *Client) HasRegion(region BattleNetRegion) bool {
count, _ := dbMap.SelectInt("SELECT COUNT(*) FROM battle_net_characters WHERE ClientId=? and Region=? and IsVerified=? and Enabled=?", c.Id, region, true, true)
return count > 0
}
func (c *Client) Characters() (characters []*BattleNetCharacter, err error) {
clientLockouts.LockId(c.Id)
defer clientLockouts.UnlockId(c.Id)
var ok bool = false
if characters, ok = clientCharacters[c.Id]; ok {
return
}
chars, err := dbMap.Select(&BattleNetCharacter{}, "SELECT * FROM battle_net_characters WHERE ClientId=? and Enabled=?", c.Id, true)
if err != nil {
log.Println(err)
characters = nil
return
}
characters = make([]*BattleNetCharacter, len(chars))
clientCharacters[c.Id] = characters
characterCache.Lock()
for x := range chars {
character := chars[x].(*BattleNetCharacter)
characters[x] = character
characterCache.characterIds[character.Id] = character
characterCache.profileIds[character.ProfileIdString()] = character
}
characterCache.Unlock()
return
}
func (c *Client) RegionStats(region BattleNetRegion) (regionStats *ClientRegionStats, err error) {
clientLockouts.LockId(c.Id)
defer clientLockouts.UnlockId(c.Id)
var ok bool = false
if _, ok = clientRegionStats[c.Id]; !ok {
clientRegionStats[c.Id] = make(map[BattleNetRegion]*ClientRegionStats)
}
if regionStats, ok = clientRegionStats[c.Id][region]; ok {
return
}
var stats ClientRegionStats
err = dbMap.SelectOne(&stats, "SELECT * FROM client_region_stats WHERE client_id=? and region=?", c.Id, int64(region))
if err != nil || stats.Id == 0 {
stats.ClientId = &c.Id
stats.Forfeits = 0
stats.Losses = 0
stats.LadderPoints = ladderStartingPoints
stats.RatingMean = 25
stats.RatingStdDev = float64(24) / float64(3)
stats.Walkovers = 0
stats.Wins = 0
stats.Region = region
err = dbMap.Insert(&stats)
}
clientRegionStats[c.Id][region] = &stats
return &stats, nil
}
func (crs *ClientRegionStats) Refresh() {
err := dbMap.SelectOne(crs, "SELECT * FROM client_region_stats WHERE id=? LIMIT 1", crs.Id)
if err != nil {
log.Println("Error refreshing CRS", crs.ClientId, crs.Id)
}
}
func (crs *ClientRegionStats) UserRegionStatsMessage() *protobufs.UserRegionStats {
var stats protobufs.UserRegionStats
var region protobufs.Region = protobufs.Region(crs.Region)
stats.Points = &crs.LadderPoints
stats.Wins = &crs.Wins
stats.Losses = &crs.Losses
stats.Walkovers = &crs.Walkovers
stats.Forfeits = &crs.Forfeits
stats.Region = ®ion
stats.PlacementsRemaining = &crs.PlacementMatchesRemaining
divisionId := int64(0)
if crs.Division != nil {
divisionId = crs.Division.Id
}
stats.Division = &divisionId
stats.Mmr = &crs.RatingMean
stats.DivisionRank = &crs.DivisionRank
return &stats
}
func (client *Client) SendBroadcastAlert(predefined int32, message string) {
var bufmsg protobufs.BroadcastAlert
bufmsg.Message = &message
bufmsg.Predefined = &predefined
client.Broadcast("ALT", &bufmsg)
}