119 lines
2.6 KiB
Go
119 lines
2.6 KiB
Go
package cmd // code.bitsetter.de/fun/gosl/cmd
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import (
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"encoding/gob"
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"log"
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"net"
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"sort"
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"time"
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"github.com/spf13/cobra"
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"code.bitsetter.de/fun/gosl/data"
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)
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var cmdServer = &cobra.Command{
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Use: "server",
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Short: "Runs Gosl as a server",
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Long: `Runs Gosl as a server
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[TODO:]
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gosl.json for configuration (Port/Adress, Level)
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`,
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// Run:
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}
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type goslClient struct {
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con *net.TCPConn
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id int
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w int
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h int
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}
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var (
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LevelFile string
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ServerPort int
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)
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var TotalWidth int = 0
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var clients map[int]goslClient = make(map[int]goslClient)
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var clientKeys []int = make([]int, 100)
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func handleConn(conn *net.TCPConn) {
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var hs data.Handshake
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log.Println("Got a connection!")
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dec := gob.NewDecoder(conn)
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dec.Decode(&hs) // decode handshake
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log.Println("Got client! ID:", hs.ID, "dimensions:", hs.W, hs.H)
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clientKeys = append(clientKeys, hs.ID)
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sort.Ints(clientKeys)
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clients[hs.ID] = goslClient{con: conn, id: hs.ID, w: hs.W, h: hs.H}
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TotalWidth += hs.W
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// conn.Close()
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}
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func serveClients() {
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var oFrame = data.Frame{
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1, 10,
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[][]rune{
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[]rune("hallo"),
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[]rune("das"),
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[]rune("ist"),
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[]rune("einTest"),
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},
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}
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for { // while true
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for _, k := range clientKeys {
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id, client := k, clients[k]
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if id > 0 {
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enc := gob.NewEncoder(client.con)
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err := enc.Encode(oFrame)
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if err != nil {
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// client disconnected
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//log.Println("BEFORE remove: clients:", clients, " clientKeys:", clientKeys)
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// delete client
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delete(clients, client.id)
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// delete client key
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// ugly as fuck in go to remove from a slice
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// it *should* work though
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idInKeys := sort.SearchInts(clientKeys, client.id)
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clientKeys = append(clientKeys[:idInKeys], clientKeys[idInKeys+1:]...)
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//log.Println("AFTER remove: clients:", clients, " clientKeys:", clientKeys)
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}
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//log.Println("ID:", id, "Client:", client)
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}
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}
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time.Sleep(time.Second / 25)
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}
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}
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func runServer(cmd *cobra.Command, args []string) {
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log.Println("running server on port", ServerPort)
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listener, err := net.ListenTCP("tcp", &net.TCPAddr{Port: ServerPort})
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if err != nil {
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log.Fatal(err)
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panic("Could not open Listener")
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}
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defer listener.Close()
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go serveClients()
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for {
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conn, err := listener.AcceptTCP()
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if err != nil {
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log.Fatal(err)
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panic("Listener could not accept connection!")
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}
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go handleConn(conn)
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}
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}
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func init() {
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CmdGosl.AddCommand(cmdServer)
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cmdServer.Run = runServer
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cmdServer.Flags().StringVarP(&LevelFile, "level", "l", "default.lvl", "Use specific levelfile")
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cmdServer.Flags().IntVarP(&ServerPort, "port", "p", 8090, "Run server on this port")
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}
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