/
hub.go
66 lines (57 loc) · 1.25 KB
/
hub.go
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package ws
import (
"log"
"time"
"github.com/moderndesignagency/pong-exercise/server/input"
)
// Hub maintains the set of active clients and broadcasts messages to the
// clients.
type Hub struct {
// Registered clients.
clients map[*Client]bool
// Inbound messages from the clients.
Broadcast chan []byte
// Register requests from the clients.
register chan *Client
// Unregister requests from clients.
unregister chan *Client
// Key pressed input from clients.
input chan []byte
}
func NewHub() *Hub {
return &Hub{
Broadcast: make(chan []byte),
register: make(chan *Client),
unregister: make(chan *Client),
clients: make(map[*Client]bool),
input: make(chan []byte),
}
}
func (h *Hub) Run() {
for {
select {
case client := <-h.register:
h.clients[client] = true
case client := <-h.unregister:
if _, ok := h.clients[client]; ok {
delete(h.clients, client)
close(client.send)
}
case message := <-h.Broadcast:
for client := range h.clients {
select {
case client.send <- message:
default:
close(client.send)
delete(h.clients, client)
}
}
case i := <-h.input:
k := input.Key(i)
log.Println("👆 " + k)
if k.IsValid() {
input.AddPressedKey(k, time.Now())
}
}
}
}