// Broadcasts state change of an entity to all interested parties
func (cp *ClientPool) Broadcast(entity entities.Entity) {
defer func() {
if panicked := recover(); panicked != nil {
return
}
}()
conn := db.Pool.Get()
defer conn.Close()
members, err := db.Smembers(conn, entity.AreaSet())
if err != nil {
log.Printf("SMEMBERS of %s: %s", entity.AreaSet(), err)
return
}
for _, member := range members {
if !strings.HasPrefix(member, "player.") {
continue
}
player := strings.SplitN(member, ".", 2)[1]
clients, ok := cp.pool[player]
if !ok {
continue
}
for element := clients.Front(); element != nil; element = element.Next() {
client := element.Value.(*Client)
if _, in := client.areas[entity.AreaSet()]; in {
client.pushStateChange(entity)
}
}
}
}
// Get and serialize all members of a set
func GetAreasMembers(areas []string) []Entity {
conn := db.Pool.Get()
defer conn.Close()
keys := []string{}
entityList := []Entity{}
for _, area := range areas {
result, err := db.Smembers(conn, area)
if err != nil {
continue
}
keys = append(keys, result...)
}
for _, key := range keys {
record, err := db.Get(conn, key)
if err != nil {
continue
}
entityList = append(entityList, Load(key, record))
}
return entityList
}