snengame/cmd/server/server.go

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2021-07-22 15:37:25 -04:00
package engine
import (
"log"
"net/http"
"github.com/gorilla/websocket"
)
var upgrader = websocket.Upgrader{} // use default options
func serve() {
http.HandleFunc("/ws", func(w http.ResponseWriter, r *http.Request) {
serveWs(w, r)
})
err := http.ListenAndServe(":7636", nil)
if err != nil {
log.Fatal("ListenAndServe: ", err)
}
}
func serveWs(w http.ResponseWriter, r *http.Request) {
// Upgrade our raw HTTP connection to a websocket based one
conn, err := upgrader.Upgrade(w, r, nil)
if err != nil {
log.Print("Error during connection upgradation:", err)
return
}
defer conn.Close()
// The event loop
for {
var cmd Command
var resp CommandResult
err := conn.ReadJSON(&cmd)
if err != nil {
log.Println("Error during message reading:", err)
break
}
log.Printf("Received: %s", cmd)
err = conn.WriteJSON(resp)
if err != nil {
log.Println("Error during message writing:", err)
break
}
}
}