fix for
issue #777 (IceGun: Segfault when freezing water, with rqBlurryLand enabled)
(*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2014 Andrey Korotaev <unC0Rr@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*)
{$INCLUDE "options.inc"}
unit uCommands;
interface
var isDeveloperMode: boolean;
var isExternalSource: boolean;
type TCommandHandler = procedure (var params: shortstring);
procedure initModule;
procedure freeModule;
procedure RegisterVariable(Name: shortstring; p: TCommandHandler; Trusted: boolean; Rand: boolean);
procedure RegisterVariable(Name: shortstring; p: TCommandHandler; Trusted: boolean);
procedure ParseCommand(CmdStr: shortstring; TrustedSource: boolean); inline;
procedure ParseCommand(CmdStr: shortstring; TrustedSource, ExternalSource: boolean);
procedure ParseTeamCommand(s: shortstring);
procedure StopMessages(Message: Longword);
implementation
uses uConsts, uVariables, uConsole, uUtils, SDLh;
type PVariable = ^TVariable;
TVariable = record
Next: PVariable;
Name: string[15];
Handler: TCommandHandler;
Trusted, Rand: boolean;
end;
var Variables: PVariable;
procedure RegisterVariable(Name: shortstring; p: TCommandHandler; Trusted: boolean);
begin
RegisterVariable(Name, p, Trusted, false);
end;
procedure RegisterVariable(Name: shortstring; p: TCommandHandler; Trusted: boolean; Rand: boolean);
var value: PVariable;
begin
New(value);
if value = nil then
ParseCommand('fatal RegisterVariable: value = nil', true);
FillChar(value^, sizeof(TVariable), 0);
value^.Name:= Name;
value^.Handler:= p;
value^.Trusted:= Trusted;
value^.Rand:= Rand;
if Variables = nil then
Variables:= value
else
begin
value^.Next:= Variables;
Variables:= value
end;
end;
procedure ParseCommand(CmdStr: shortstring; TrustedSource: boolean); inline;
begin
ParseCommand(CmdStr, TrustedSource, false)
end;
procedure ParseCommand(CmdStr: shortstring; TrustedSource, ExternalSource: boolean);
var s: shortstring;
t: PVariable;
c: char;
begin
isExternalSource:= ExternalSource or ((CurrentTeam <> nil) and CurrentTeam^.ExtDriven);
//WriteLnToConsole(CmdStr);
if CmdStr[0]=#0 then
exit;
AddFileLog('[Cmd] ' + sanitizeForLog(CmdStr));
c:= CmdStr[1];
if (c = '/') or (c = '$') then
Delete(CmdStr, 1, 1);
s:= '';
SplitBySpace(CmdStr, s);
t:= Variables;
while t <> nil do
begin
if t^.Name = CmdStr then
begin
if TrustedSource or t^.Trusted then
begin
if t^.Rand and (not CheckNoTeamOrHH) then
CheckSum:= CheckSum xor LongWord(SDLNet_Read32(@CmdStr)) xor LongWord(s[0]) xor GameTicks;
t^.Handler(s);
end;
exit
end
else
t:= t^.Next
end;
case c of
'$': WriteLnToConsole(errmsgUnknownVariable + ': "$' + CmdStr + '"')
else
WriteLnToConsole(errmsgUnknownCommand + ': "/' + CmdStr + '"') end
end;
procedure ParseTeamCommand(s: shortstring);
var Trusted: boolean;
begin
Trusted:= (CurrentTeam <> nil)
and (not CurrentTeam^.ExtDriven)
and (CurrentHedgehog^.BotLevel = 0);
ParseCommand(s, Trusted);
if (CurrentTeam <> nil) and (not CurrentTeam^.ExtDriven) and (ReadyTimeLeft > 1) then
ParseCommand('gencmd R', true)
end;
procedure StopMessages(Message: Longword);
begin
if (Message and gmLeft) <> 0 then
ParseCommand('/-left', true)
else if (Message and gmRight) <> 0 then
ParseCommand('/-right', true)
else if (Message and gmUp) <> 0 then
ParseCommand('/-up', true)
else if (Message and gmDown) <> 0 then
ParseCommand('/-down', true)
else if (Message and gmAttack) <> 0 then
ParseCommand('/-attack', true)
end;
procedure initModule;
begin
Variables:= nil;
isDeveloperMode:= true;
end;
procedure freeModule;
var t, tt: PVariable;
begin
tt:= Variables;
Variables:= nil;
while tt <> nil do
begin
t:= tt;
tt:= tt^.Next;
Dispose(t)
end;
end;
end.