author | unc0rr |
Sun, 12 Apr 2009 15:53:56 +0000 | |
changeset 1971 | c90c7c5fd37a |
parent 1888 | e76274ce7365 |
child 2017 | 7845c77c8d31 |
permissions | -rw-r--r-- |
4 | 1 |
(* |
1066 | 2 |
* Hedgewars, a free turn based strategy game |
883 | 3 |
* Copyright (c) 2004, 2005, 2007, 2008 Andrey Korotaev <unC0Rr@gmail.com> |
4 | 4 |
* |
183 | 5 |
* This program is free software; you can redistribute it and/or modify |
6 |
* it under the terms of the GNU General Public License as published by |
|
7 |
* the Free Software Foundation; version 2 of the License |
|
4 | 8 |
* |
183 | 9 |
* This program is distributed in the hope that it will be useful, |
10 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
11 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
12 |
* GNU General Public License for more details. |
|
4 | 13 |
* |
183 | 14 |
* You should have received a copy of the GNU General Public License |
15 |
* along with this program; if not, write to the Free Software |
|
16 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA |
|
4 | 17 |
*) |
18 |
||
19 |
unit uIO; |
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interface |
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uses SDLh; |
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22 |
{$INCLUDE options.inc} |
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23 |
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24 |
const ipcPort: Word = 0; |
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||
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procedure SendIPC(s: shortstring); |
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procedure SendIPCXY(cmd: char; X, Y: SmallInt); |
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procedure SendIPCRaw(p: pointer; len: Longword); |
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procedure SendIPCAndWaitReply(s: shortstring); |
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procedure SendIPCTimeInc; |
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procedure LoadRecordFromFile(fileName: shortstring); |
159 | 32 |
procedure IPCWaitPongEvent; |
4 | 33 |
procedure IPCCheckSock; |
34 |
procedure InitIPC; |
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procedure CloseIPC; |
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procedure NetGetNextCmd; |
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var hiTicks: Word = 0; |
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|
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implementation |
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uses uConsole, uConsts, uWorld, uMisc, uLand, uChat, uTeams; |
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const isPonged: boolean = false; |
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type PCmd = ^TCmd; |
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TCmd = packed record |
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Next: PCmd; |
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Time: LongWord; |
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case byte of |
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1: (len: byte; |
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cmd: Char; |
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X, Y: SmallInt); |
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2: (str: shortstring); |
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end; |
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var IPCSock: PTCPSocket = nil; |
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fds: PSDLNet_SocketSet; |
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headcmd: PCmd = nil; |
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lastcmd: PCmd = nil; |
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function AddCmd(Time: Longword; str: shortstring): PCmd; |
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var Result: PCmd; |
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begin |
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new(Result); |
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FillChar(Result^, sizeof(TCmd), 0); |
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Result^.Time:= Time; |
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Result^.str:= str; |
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if Result^.cmd <> 'F' then dec(Result^.len, 2); // cut timestamp |
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if headcmd = nil then |
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begin |
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headcmd:= Result; |
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lastcmd:= Result |
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end else |
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begin |
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lastcmd^.Next:= Result; |
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lastcmd:= Result |
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end; |
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AddCmd:= Result |
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end; |
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procedure RemoveCmd; |
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var tmp: PCmd; |
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begin |
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TryDo(headcmd <> nil, 'Engine bug: headcmd = nil', true); |
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tmp:= headcmd; |
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headcmd:= headcmd^.Next; |
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if headcmd = nil then lastcmd:= nil; |
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dispose(tmp) |
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end; |
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procedure InitIPC; |
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var ipaddr: TIPAddress; |
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93 |
begin |
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WriteToConsole('Init SDL_Net... '); |
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SDLTry(SDLNet_Init = 0, true); |
|
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fds:= SDLNet_AllocSocketSet(1); |
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SDLTry(fds <> nil, true); |
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WriteLnToConsole(msgOK); |
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WriteToConsole('Establishing IPC connection... '); |
|
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SDLTry(SDLNet_ResolveHost(ipaddr, '127.0.0.1', ipcPort) = 0, true); |
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IPCSock:= SDLNet_TCP_Open(ipaddr); |
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SDLTry(IPCSock <> nil, true); |
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WriteLnToConsole(msgOK) |
|
104 |
end; |
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||
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procedure CloseIPC; |
|
107 |
begin |
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SDLNet_FreeSocketSet(fds); |
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SDLNet_TCP_Close(IPCSock); |
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SDLNet_Quit |
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end; |
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procedure ParseIPCCommand(s: shortstring); |
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var loTicks: Word; |
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begin |
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case s[1] of |
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'!': begin {$IFDEF DEBUGFILE}AddFileLog('Ping? Pong!');{$ENDIF}isPonged:= true; end; |
4 | 118 |
'?': SendIPC('!'); |
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'#': inc(hiTicks); |
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'e': ParseCommand(copy(s, 2, Length(s) - 1), true); |
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'E': OutError(copy(s, 2, Length(s) - 1), true); |
122 |
'W': OutError(copy(s, 2, Length(s) - 1), false); |
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'M': CheckLandDigest(s); |
4 | 124 |
'T': case s[2] of |
125 |
'L': GameType:= gmtLocal; |
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'D': GameType:= gmtDemo; |
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'N': GameType:= gmtNet; |
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'S': GameType:= gmtSave; |
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else OutError(errmsgIncorrectUse + ' IPC "T" :' + s[2], true) end; |
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else |
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loTicks:= SDLNet_Read16(@s[byte(s[0]) - 1]); |
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AddCmd(hiTicks shl 16 + loTicks, s); |
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{$IFDEF DEBUGFILE}AddFileLog('IPC in: '+s[1]+' ticks '+inttostr(lastcmd^.Time));{$ENDIF} |
4 | 134 |
end |
135 |
end; |
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procedure IPCCheckSock; |
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const ss: string = ''; |
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var i: LongInt; |
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buf: array[0..255] of byte; |
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s: shortstring absolute buf; |
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begin |
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if IPCSock = nil then |
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exit; |
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fds^.numsockets:= 0; |
4 | 147 |
SDLNet_AddSocket(fds, IPCSock); |
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while SDLNet_CheckSockets(fds, 0) > 0 do |
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begin |
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i:= SDLNet_TCP_Recv(IPCSock, @buf[1], 255 - Length(ss)); |
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if i > 0 then |
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begin |
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buf[0]:= i; |
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ss:= ss + s; |
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while (Length(ss) > 1)and(Length(ss) > byte(ss[1])) do |
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begin |
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ParseIPCCommand(copy(ss, 2, byte(ss[1]))); |
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Delete(ss, 1, Succ(byte(ss[1]))) |
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end |
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end else OutError('IPC connection lost', true) |
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end; |
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end; |
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|
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procedure LoadRecordFromFile(fileName: shortstring); |
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var f: file; |
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ss: string = ''; |
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i: LongInt; |
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buf: array[0..255] of byte; |
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s: shortstring absolute buf; |
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begin |
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assign(f, fileName); |
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reset(f, 1); |
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repeat |
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BlockRead(f, buf[1], 255 - Length(ss), i); |
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if i > 0 then |
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begin |
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buf[0]:= i; |
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ss:= ss + s; |
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while (Length(ss) > 1)and(Length(ss) > byte(ss[1])) do |
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begin |
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ParseIPCCommand(copy(ss, 2, byte(ss[1]))); |
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Delete(ss, 1, Succ(byte(ss[1]))) |
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end |
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end |
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until i = 0; |
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|
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close(f) |
4 | 191 |
end; |
192 |
||
193 |
procedure SendIPC(s: shortstring); |
|
194 |
begin |
|
49 | 195 |
if IPCSock <> nil then |
196 |
begin |
|
197 |
if s[0]>#251 then s[0]:= #251; |
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SDLNet_Write16(GameTicks, @s[Succ(byte(s[0]))]); |
1432 | 199 |
{$IFDEF DEBUGFILE}AddFileLog('IPC send: '+s[1]);{$ENDIF} |
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200 |
inc(s[0], 2); |
49 | 201 |
SDLNet_TCP_Send(IPCSock, @s, Succ(byte(s[0]))) |
202 |
end |
|
4 | 203 |
end; |
204 |
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procedure SendIPCRaw(p: pointer; len: Longword); |
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206 |
begin |
208 | 207 |
if IPCSock <> nil then |
208 |
begin |
|
209 |
SDLNet_TCP_Send(IPCSock, p, len) |
|
210 |
end |
|
155
401f4ea24715
Engine can generate land preview and send it via IPC
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parents:
154
diff
changeset
|
211 |
end; |
401f4ea24715
Engine can generate land preview and send it via IPC
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parents:
154
diff
changeset
|
212 |
|
154
5667e6f38704
Network protocol uses integers in network byte order
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112
diff
changeset
|
213 |
procedure SendIPCXY(cmd: char; X, Y: SmallInt); |
5667e6f38704
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diff
changeset
|
214 |
var s: shortstring; |
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diff
changeset
|
215 |
begin |
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diff
changeset
|
216 |
s[0]:= #5; |
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diff
changeset
|
217 |
s[1]:= cmd; |
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diff
changeset
|
218 |
SDLNet_Write16(X, @s[2]); |
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Network protocol uses integers in network byte order
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diff
changeset
|
219 |
SDLNet_Write16(Y, @s[4]); |
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Network protocol uses integers in network byte order
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diff
changeset
|
220 |
SendIPC(s) |
5667e6f38704
Network protocol uses integers in network byte order
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diff
changeset
|
221 |
end; |
5667e6f38704
Network protocol uses integers in network byte order
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diff
changeset
|
222 |
|
649
26166c87dc75
- Use 2 bytes for timestamp in net protocol, thus decreasing average packet size from 6 to 4
unc0rr
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diff
changeset
|
223 |
procedure SendIPCTimeInc; |
26166c87dc75
- Use 2 bytes for timestamp in net protocol, thus decreasing average packet size from 6 to 4
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diff
changeset
|
224 |
const timeinc: shortstring = '#'; |
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- Use 2 bytes for timestamp in net protocol, thus decreasing average packet size from 6 to 4
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diff
changeset
|
225 |
begin |
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changeset
|
226 |
SendIPCRaw(@timeinc, 2) |
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diff
changeset
|
227 |
end; |
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diff
changeset
|
228 |
|
159 | 229 |
procedure IPCWaitPongEvent; |
4 | 230 |
begin |
231 |
isPonged:= false; |
|
232 |
repeat |
|
233 |
IPCCheckSock; |
|
234 |
SDL_Delay(1) |
|
235 |
until isPonged |
|
236 |
end; |
|
237 |
||
159 | 238 |
procedure SendIPCAndWaitReply(s: shortstring); |
239 |
begin |
|
240 |
SendIPC(s); |
|
241 |
SendIPC('?'); |
|
242 |
IPCWaitPongEvent |
|
243 |
end; |
|
244 |
||
4 | 245 |
procedure NetGetNextCmd; |
246 |
var tmpflag: boolean; |
|
977
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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changeset
|
247 |
s: shortstring; |
4 | 248 |
begin |
977
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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changeset
|
249 |
tmpflag:= true; |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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changeset
|
250 |
|
1351
aa7aefec5c1b
Add partial implementation of handling disconnects while playing via network
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changeset
|
251 |
while (headcmd <> nil) |
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Add partial implementation of handling disconnects while playing via network
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changeset
|
252 |
and ((GameTicks = headcmd^.Time) |
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Add partial implementation of handling disconnects while playing via network
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|
253 |
or (headcmd^.cmd = 's') |
aa7aefec5c1b
Add partial implementation of handling disconnects while playing via network
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changeset
|
254 |
or (headcmd^.cmd = 'F')) do |
977
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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diff
changeset
|
255 |
begin |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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diff
changeset
|
256 |
case headcmd^.cmd of |
1038 | 257 |
'+': ; // do nothing - it's just empty packet |
977
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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changeset
|
258 |
'L': ParseCommand('+left', true); |
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|
259 |
'l': ParseCommand('-left', true); |
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changeset
|
260 |
'R': ParseCommand('+right', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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changeset
|
261 |
'r': ParseCommand('-right', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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changeset
|
262 |
'U': ParseCommand('+up', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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changeset
|
263 |
'u': ParseCommand('-up', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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changeset
|
264 |
'D': ParseCommand('+down', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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diff
changeset
|
265 |
'd': ParseCommand('-down', true); |
1639 | 266 |
'Z': ParseCommand('+precise', true); |
267 |
'z': ParseCommand('-precise', true); |
|
977
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
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diff
changeset
|
268 |
'A': ParseCommand('+attack', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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diff
changeset
|
269 |
'a': ParseCommand('-attack', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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diff
changeset
|
270 |
'S': ParseCommand('switch', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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diff
changeset
|
271 |
'j': ParseCommand('ljump', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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diff
changeset
|
272 |
'J': ParseCommand('hjump', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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diff
changeset
|
273 |
',': ParseCommand('skip', true); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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parents:
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diff
changeset
|
274 |
's': begin |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
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diff
changeset
|
275 |
s:= copy(headcmd^.str, 2, Pred(headcmd^.len)); |
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Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
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diff
changeset
|
276 |
AddChatString(s); |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
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diff
changeset
|
277 |
WriteLnToConsole(s) |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
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diff
changeset
|
278 |
end; |
1351
aa7aefec5c1b
Add partial implementation of handling disconnects while playing via network
unc0rr
parents:
1066
diff
changeset
|
279 |
'F': TeamGone(copy(headcmd^.str, 2, Pred(headcmd^.len))); |
977
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
280 |
'N': begin |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
281 |
tmpflag:= false; |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
282 |
{$IFDEF DEBUGFILE}AddFileLog('got cmd "N": time '+inttostr(headcmd^.Time)){$ENDIF} |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
283 |
end; |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
284 |
'p': begin |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
285 |
TargetPoint.X:= SmallInt(SDLNet_Read16(@(headcmd^.X))); |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
286 |
TargetPoint.Y:= SmallInt(SDLNet_Read16(@(headcmd^.Y))); |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
287 |
ParseCommand('put', true) |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
288 |
end; |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
289 |
'P': begin |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
290 |
CursorPoint.X:= SmallInt(SDLNet_Read16(@(headcmd^.X)) + WorldDx); |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
291 |
CursorPoint.Y:= SmallInt(SDLNet_Read16(@(headcmd^.Y)) + WorldDy); |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
292 |
end; |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
293 |
'w': ParseCommand('setweap ' + headcmd^.str[2], true); |
1035 | 294 |
't': ParseCommand('taunt ' + headcmd^.str[2], true); |
1821
6b6cf3389f92
Hedgehog drops a grave on "/newgrave" command. Patch by nemo
unc0rr
parents:
1639
diff
changeset
|
295 |
'g': ParseCommand('newgrave', true); |
977
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
296 |
'1'..'5': ParseCommand('timer ' + headcmd^.cmd, true); |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
297 |
#128..char(128 + cMaxSlotIndex): ParseCommand('slot ' + char(byte(headcmd^.cmd) - 79), true) |
1035 | 298 |
else |
299 |
OutError('Unexpected protocol command: ' + headcmd^.cmd, True) |
|
977
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
300 |
end; |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
301 |
RemoveCmd |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
302 |
end; |
351 | 303 |
|
648
fc5234aa6493
Use list instead of array (no limit for network packets amount)
unc0rr
parents:
526
diff
changeset
|
304 |
if (headcmd <> nil) then |
977
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
305 |
TryDo(GameTicks < headcmd^.Time, |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
306 |
'oops, queue error. in buffer: ' + headcmd^.cmd + |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
307 |
' (' + inttostr(GameTicks) + ' > ' + |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
308 |
inttostr(headcmd^.Time) + ')', |
fdbf2a5c1ad7
Fix an oops with chat string appearing between two net commands (it's very rare and random condition, but I caught it while playing via net)
unc0rr
parents:
946
diff
changeset
|
309 |
true); |
4 | 310 |
|
1560
e140bc57ff68
Quick replay round to spectators until current move
unc0rr
parents:
1432
diff
changeset
|
311 |
isInLag:= (headcmd = nil) and tmpflag and not CurrentTeam^.hasGone; |
e140bc57ff68
Quick replay round to spectators until current move
unc0rr
parents:
1432
diff
changeset
|
312 |
if isInLag then fastUntilLag:= false |
4 | 313 |
end; |
314 |
||
315 |
end. |