85 lines
1.8 KiB
Go
85 lines
1.8 KiB
Go
package teeworlds7
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import (
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"bufio"
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"fmt"
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"net"
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"time"
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"github.com/teeworlds-go/go-teeworlds-protocol/network7"
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"github.com/teeworlds-go/go-teeworlds-protocol/protocol7"
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)
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const (
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maxPacksize = 1400
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)
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func getConnection(serverIp string, serverPort int) (net.Conn, error) {
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conn, err := net.Dial("udp", fmt.Sprintf("%s:%d", serverIp, serverPort))
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if err != nil {
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fmt.Printf("Some error %v", err)
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}
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return conn, err
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}
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func readNetwork(ch chan<- []byte, conn net.Conn) {
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buf := make([]byte, maxPacksize)
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for {
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len, err := bufio.NewReader(conn).Read(buf)
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packet := make([]byte, len)
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copy(packet[:], buf[:])
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if err == nil {
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ch <- packet
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} else {
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fmt.Printf("Some error %v\n", err)
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break
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}
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}
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conn.Close()
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}
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func (client *Client) Connect(serverIp string, serverPort int) {
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ch := make(chan []byte, maxPacksize)
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conn, err := getConnection(serverIp, serverPort)
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if err != nil {
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fmt.Printf("error connecting %v\n", err)
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return
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}
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client.Session = protocol7.Session{
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ClientToken: [4]byte{0x01, 0x02, 0x03, 0x04},
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ServerToken: [4]byte{0xff, 0xff, 0xff, 0xff},
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Ack: 0,
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}
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client.Game.Players = make([]Player, network7.MaxClients)
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client.Conn = conn
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go readNetwork(ch, conn)
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client.SendPacket(client.Session.CtrlToken())
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// TODO: do we really need a non blocking network read?
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// if not remove the channel, the sleep and the select statement
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// if yes also offer an OnTick callback to the user, and also do keepalives and resends
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for {
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time.Sleep(10_000_000)
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select {
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case msg := <-ch:
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packet := &protocol7.Packet{}
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err := packet.Unpack(msg)
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if err != nil {
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client.throwError(err)
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}
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err = client.processPacket(packet)
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if err != nil {
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client.throwError(err)
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}
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default:
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// do nothing
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}
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}
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}
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