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Pulled out common code from spectator and player

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This commit is contained in:
Stephen McQuay 2014-02-17 00:42:52 -08:00
parent b131b4bc53
commit 5d9103f176
3 changed files with 76 additions and 94 deletions
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91
player.go
View File

@ -3,53 +3,69 @@ package main
import (
"code.google.com/p/go.net/websocket"
"encoding/json"
"errors"
"fmt"
"log"
)
const maxMessageSize = 1024
type player struct {
ws *websocket.Conn
Robots []*Robot
send chan Message
Instruction Instruction
Id string
type protoTalker struct {
ws *websocket.Conn
send chan Message
Id string
}
func (p *player) sender() {
log.Printf("%s: sender launched", p.Id)
for things := range p.send {
func (pt *protoTalker) sender() {
log.Printf("%s: client launched", pt.Id)
for things := range pt.send {
b, err := json.Marshal(things)
if err != nil {
break
}
// XXX: send the count to our bandwidth analyzer ...
_, err = p.ws.Write(b)
_, err = pt.ws.Write(b)
if err != nil {
break
}
}
p.ws.Close()
log.Printf("%s: robot (%s) sender close", p.Id, p.Robots[0].Id)
pt.ws.Close()
log.Printf("%s: spectator sender close", pt.Id)
}
func (pt *protoTalker) readJSON(buff []byte) (map[string]Instruction, error) {
msg := map[string]Instruction{}
n, err := pt.ws.Read(buff)
if err != nil {
log.Printf("%s: problem reading from player: %s", pt.Id, err)
return nil, err
}
// XXX: send n to our bandwidth analyzer ...
if n == len(buff) {
errMsg := fmt.Sprintf("%s: read buffer overfull: %s", pt.Id, string(buff))
log.Printf(errMsg)
return msg, errors.New(errMsg)
}
err = json.Unmarshal(buff[:n], &msg)
if err != nil {
log.Printf("%s: problem reading from player: %s", pt.Id, err)
return nil, err
}
return msg, nil
}
type player struct {
Robots []*Robot
Instruction Instruction
protoTalker
}
func (p *player) recv() {
buff := make([]byte, maxMessageSize)
var msgs map[string]Instruction
for {
n, err := p.ws.Read(buff)
msgs, err := p.readJSON(buff)
if err != nil {
log.Printf("%s: problem reading from player: %s", p.Id, err)
break
}
// XXX: send n to our bandwidth analyzer ...
if n == len(buff) {
log.Printf("%s: read buffer overfull: %s", p.Id, string(buff))
break
}
err = json.Unmarshal(buff[:n], &msgs)
if err != nil {
log.Printf("%s: problem reading from player: %s", p.Id, err)
log.Printf("%s: %s", p.Id, err)
break
}
@ -115,3 +131,28 @@ func (p *player) recv() {
log.Printf("%s: recv close", p.Id)
p.ws.Close()
}
type Spectator struct {
protoTalker
}
func (s *Spectator) recv() {
// TODO: move this to a NewSpectator func
buff := make([]byte, maxMessageSize)
for {
_, err := s.readJSON(buff)
if err != nil {
log.Printf("%s: %s", s.Id, err)
break
}
// After the first bit of handshaking, the rest of the messages should
// only be "{}" for spectators, and the following could hold true:
//
// if string(buff[:n]) != "{}" {
// log.Printf("protocol breach!!")
// break
// }
}
log.Printf("%s: recv close", s.Id)
s.ws.Close()
}

16
protocol.go
View File

@ -232,9 +232,11 @@ func addPlayer(ws *websocket.Conn) {
p := &player{
Robots: []*Robot{},
send: make(chan Message, 16),
ws: ws,
Id: player_id,
protoTalker: protoTalker{
send: make(chan Message, 16),
ws: ws,
Id: player_id,
},
}
log.Printf("%s: made a player: %s", gid.Id, p.Id)
@ -291,9 +293,11 @@ func addPlayer(ws *websocket.Conn) {
)
case "spectator":
s := &Spectator{
send: make(chan Message, 16),
ws: ws,
Id: player_id,
protoTalker{
send: make(chan Message, 16),
ws: ws,
Id: player_id,
},
}
log.Printf("%s, %s: about to register this spectator", gid.Id, s.Id)
game.sregister <- s

63
spectator.go
View File

@ -1,63 +0,0 @@
package main
import (
"code.google.com/p/go.net/websocket"
"encoding/json"
"log"
)
type Spectator struct {
ws *websocket.Conn
send chan Message
Id string
}
func (s *Spectator) sender() {
log.Printf("%s: sender launched", s.Id)
for things := range s.send {
b, err := json.Marshal(things)
if err != nil {
break
}
// XXX: send the count to our bandwidth analyzer ...
_, err = s.ws.Write(b)
if err != nil {
break
}
}
s.ws.Close()
log.Printf("%s: spectator sender close", s.Id)
}
func (s *Spectator) recv() {
var msg interface{}
buff := make([]byte, maxMessageSize)
for {
n, err := s.ws.Read(buff)
if err != nil {
log.Printf("%s: problem reading from player: %s", s.Id, err)
break
}
// XXX: send n to our bandwidth analyzer ...
log.Println(string(buff[:n]))
if n == len(buff) {
log.Printf("%s: read buffer overfull: %s", s.Id, string(buff))
break
}
err = json.Unmarshal(buff[:n], &msg)
log.Println(n)
if err != nil {
log.Printf("%s: problem reading from player: %s", s.Id, err)
break
}
// After the first bit of handshaking, the rest of the messages should
// only be "{}" for spectators, and the following could hold true:
//
// if string(buff[:n]) != "{}" {
// log.Printf("protocol breach!!")
// break
// }
}
log.Printf("%s: recv close", s.Id)
s.ws.Close()
}