teeworlds-go/go-teeworlds-protocol
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Spawning a tee works

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This commit is contained in:
ChillerDragon 2024-06-01 19:00:47 +08:00
parent 4538112164
commit 2cbc6f17e9
1 changed files with 61 additions and 5 deletions
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66
teeworlds_client.go
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@ -19,6 +19,7 @@ const (
msgCtrlClose = 0x04
msgSysMapChange = 0x05
msgGameMotd = 0x02
)
func ctrlToken(myToken []byte) []byte {
@ -63,8 +64,6 @@ func (client TeeworldsClient) sendCtrlMsg(data []byte) {
flags := []byte{0x04, 0x00, 0x00}
packet := slices.Concat(flags, client.serverToken[:], data)
// fmt.Printf("sending %v\n", packet)
client.conn.Write(packet)
}
@ -92,6 +91,39 @@ func (client TeeworldsClient) sendInfo() {
client.conn.Write(packet)
}
func (client TeeworldsClient) sendStartInfo() {
info := []byte{
0x41, 0x14, 0x03, 0x36, 0x67, 0x6f, 0x70, 0x68, 0x65, 0x72, 0x00, 0x00, 0x40, 0x67, 0x72, 0x65,
0x65, 0x6e, 0x73, 0x77, 0x61, 0x72, 0x64, 0x00, 0x64, 0x75, 0x6f, 0x64, 0x6f, 0x6e, 0x6e, 0x79,
0x00, 0x00, 0x73, 0x74, 0x61, 0x6e, 0x64, 0x61, 0x72, 0x64, 0x00, 0x73, 0x74, 0x61, 0x6e, 0x64,
0x61, 0x72, 0x64, 0x00, 0x73, 0x74, 0x61, 0x6e, 0x64, 0x61, 0x72, 0x64, 0x00, 0x01, 0x01, 0x00,
0x00, 0x00, 0x00, 0x80, 0xfc, 0xaf, 0x05, 0xeb, 0x83, 0xd0, 0x0a, 0x80, 0xfe, 0x07, 0x80, 0xfe,
0x07, 0x80, 0xfe, 0x07, 0x80, 0xfe, 0x07,
}
packet := slices.Concat(
[]byte{0x00, 0x04, 0x01},
client.serverToken[:],
info,
)
client.conn.Write(packet)
}
func (client TeeworldsClient) sendEnterGame() {
enter := []byte{
0x40, 0x01, 0x04, 0x27,
}
packet := slices.Concat(
[]byte{0x00, 0x07, 0x01},
client.serverToken[:],
enter,
)
client.conn.Write(packet)
}
func isCtrlMsg(data []byte) bool {
return data[0] == 0x04
}
@ -101,6 +133,24 @@ func isMapChange(data []byte) bool {
return data[10] == msgSysMapChange
}
func isCompressed(data []byte) bool {
// we don't talk about it
return data[0] == 0x10
}
func numberOfChunks(data []byte) int {
return int(data[2])
}
func isReadyToEnter(data []byte) bool {
return !isCompressed(data) && numberOfChunks(data) == 3
}
func isConReady(data []byte) bool {
// unsafe and yemDX level troling
return isCompressed(data) // data[10] == msgSysMapChange
}
func byteSliceToString(s []byte) string {
n := bytes.IndexByte(s, 0)
if n >= 0 {
@ -115,7 +165,7 @@ func (client *TeeworldsClient) onMessage(data []byte) {
fmt.Printf("got ctrl msg %d\n", ctrlMsg)
if ctrlMsg == msgCtrlToken {
copy(client.serverToken[:], data[8:12])
fmt.Printf("got server token %v\n", client.serverToken)
fmt.Printf("got server token %x\n", client.serverToken)
client.sendCtrlMsg(slices.Concat([]byte{msgCtrlConnect}, client.clientToken[:]))
} else if ctrlMsg == msgCtrlAccept {
fmt.Println("got accept")
@ -129,14 +179,20 @@ func (client *TeeworldsClient) onMessage(data []byte) {
os.Exit(0)
} else {
fmt.Printf("unknown control message: %v\n", data)
fmt.Printf("unknown control message: %x\n", data)
}
} else if isMapChange(data) {
fmt.Println("got map change")
client.sendReady()
} else if isConReady(data) {
fmt.Println("got ready")
client.sendStartInfo()
} else if isReadyToEnter(data) {
fmt.Println("got ready to enter")
client.sendEnterGame()
} else {
fmt.Printf("unknown message: %v\n", data)
fmt.Printf("unknown message: %x\n", data)
}
}