/
mud.go
150 lines (138 loc) · 2.49 KB
/
mud.go
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// Copyright Peter Herth 2016
package main
import (
"bufio"
"bytes"
"fmt"
"log"
"net"
"os"
"runtime"
"time"
)
func readQuoted(reader *bufio.Reader, delim rune) (result string, eof bool) {
var b bytes.Buffer
esc := false
for {
r, s, _ := reader.ReadRune()
if s == 0 {
eof = true
break
}
if esc {
switch r {
case 'n':
b.WriteRune(10)
case 't':
b.WriteRune(8)
default:
b.WriteRune(r)
}
esc = false
} else {
switch r {
case delim:
return b.String(), eof
case '\\':
esc = true
default:
b.WriteRune(r)
}
}
}
return b.String(), eof
}
func readExpr(reader *bufio.Reader) (tokens []string, eof bool) {
var b bytes.Buffer
//eof = skipWS(reader)
loop:
for {
r, s, _ := reader.ReadRune()
if s == 0 {
eof = true
break
}
switch r {
case 10:
break loop
case 13:
continue
case 32, 9:
if b.Len() > 0 {
tokens = append(tokens, b.String())
b.Reset()
}
skipWStoEOL(reader)
continue
case '"', 39:
res, _ := readQuoted(reader, r)
tokens = append(tokens, res)
b.Reset()
continue
case '{':
res, _ := readQuoted(reader, '}')
tokens = append(tokens, res)
b.Reset()
continue
}
b.WriteRune(r)
}
if b.Len() > 0 {
tokens = append(tokens, b.String())
}
return
}
func handle(c net.Conn) {
//buffer := make([]byte, 1024)
player := Player{Name: "JohnDoe", Connection: c, Handler: readName, Level: 1}
world.Players = append(world.Players, &player)
r := bufio.NewReader(c)
player.Printf("How would you like to be called?\n> ")
for {
tokens, eof := readExpr(r)
//fmt.Println("read")
// for i, tok := range tokens {
// fmt.Println(i, tok, len(tok))
// }
if len(tokens) == 1 && tokens[0] == "quit" {
c.Close()
break
}
if len(tokens) > 0 {
player.Handler(&player, tokens)
}
if eof {
break
} else {
player.Printf("> ")
}
}
log.Printf("socket of %s closed %v\n", player.Name, c.RemoteAddr())
}
func serve() {
listener, err := net.Listen("tcp", ":8000")
if err != nil {
log.Fatal(err)
}
defer listener.Close()
fmt.Println("listening on port 8000")
for {
// Wait for a connection.
conn, err := listener.Accept()
if err != nil {
log.Fatal(err)
}
go handle(conn)
}
}
func main() {
initCommands()
world.Rooms = make(map[string]*Room, 40000)
fmt.Println("MUD starting...")
t1 := time.Now()
loadAreas()
fmt.Fprintf(os.Stderr, "loading: %v\n", time.Since(t1))
fmt.Println(runtime.NumCPU(), "cpus")
go startWebServer()
serve()
}