hedgewars/ArgParsers.inc
author deepdog
Sat, 01 Dec 2012 02:12:10 +0100
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permissions -rw-r--r--
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 *)
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procedure internalStartGameWithParameters();
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var tmp: LongInt;
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begin
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    UserPathPrefix:= ParamStr(1);
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    cScreenWidth:= StrToInt(ParamStr(2));
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    cScreenHeight:= StrToInt(ParamStr(3));
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    cBits:= StrToInt(ParamStr(4));
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    ipcPort:= StrToInt(ParamStr(5));
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    cFullScreen:= ParamStr(6) = '1';
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    SetSound(ParamStr(7) = '1');
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    SetMusic(ParamStr(8) = '1');
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    SetVolume(StrToInt(ParamStr(9)));
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    cTimerInterval:= StrToInt(ParamStr(10));
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    PathPrefix:= ParamStr(11);
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    cShowFPS:= ParamStr(12) = '1';
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    cAltDamage:= ParamStr(13) = '1';
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    UserNick:= DecodeBase64(ParamStr(14));
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    cReducedQuality:= StrToInt(ParamStr(15));
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    tmp:= StrToInt(ParamStr(16));
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    GrayScale:= false;
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    if (tmp > 9) and (tmp < 16) then 
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        begin
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        GrayScale:= true;
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        cStereoMode:= TStereoMode(max(0, min(ord(high(TStereoMode)), tmp-9)))
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        end
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    else if tmp <= 9 then 
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        cStereoMode:= TStereoMode(max(0, min(ord(high(TStereoMode)), tmp)))
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    else 
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        cStereoMode:= TStereoMode(max(0, min(ord(high(TStereoMode)), tmp-6)));
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    cLocaleFName:= ParamStr(17);
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end;
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{$IFDEF USE_VIDEO_RECORDING}
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procedure internalStartVideoRecordingWithParameters();
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begin
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    internalStartGameWithParameters();
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    GameType:= gmtRecord;
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    cVideoFramerateNum:= StrToInt(ParamStr(18));
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    cVideoFramerateDen:= StrToInt(ParamStr(19));
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    RecPrefix:= ParamStr(20);
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    cAVFormat:= ParamStr(21);
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    cVideoCodec:= ParamStr(22);
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    cVideoQuality:= StrToInt(ParamStr(23));
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    cAudioCodec:= ParamStr(24);
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end;
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{$ENDIF}
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procedure DisplayUsage;
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begin
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    WriteLn(stdout, 'Usage:');
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    WriteLn(stdout, '');
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    WriteLn(stdout, '  hwengine <path to user hedgewars folder> <path to global data folder> <path to replay file> [options]');
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    WriteLn(stdout, '');
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    WriteLn(stdout, 'where [options] are any of the following:');
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    WriteLn(stdout, ' --locale [path to language file]');
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    WriteLn(stdout, ' --width  [screen width in pixels]');
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    WriteLn(stdout, ' --height [screen height in pixels]');
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    WriteLn(stdout, ' --depth  [color depth]');
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    WriteLn(stdout, ' --volume [sound level]');
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    WriteLn(stdout, ' --time   [number of seconds]');
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    WriteLn(stdout, ' --nomusic');
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    WriteLn(stdout, ' --nosound');
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    WriteLn(stdout, ' --fullscreen');
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    WriteLn(stdout, ' --showfps');
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    WriteLn(stdout, ' --altdmg');
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    WriteLn(stdout, ' --lowquality');
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    WriteLn(stdout, ' --stats-only');
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    WriteLn(stdout, ' --help');
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    WriteLn(stdout, '');
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    WriteLn(stdout, 'Deprecated options:');
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    WriteLn(stdout, ' --set-video [screen width] [screen height] [color dept]');
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    WriteLn(stdout, ' --set-audio [volume] [enable music] [enable sounds]');
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    WriteLn(stdout, ' --set-other [language file] [full screen] [show FPS]');
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    WriteLn(stdout, ' --set-multimedia [screen width] [screen height] [color dept] [volume] [enable music] [enable sounds] [language file] [full screen]');
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    WriteLn(stdout, ' --set-everything [screen width] [screen height] [color dept] [volume] [enable music] [enable sounds] [language file] [full screen] [show FPS] [alternate damage] [timer value] [reduced quality]');
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    WriteLn(stdout, '');
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    WriteLn(stdout, 'For a more detailed help and examples go to:');
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    WriteLn(stdout, 'http://code.google.com/p/hedgewars/wiki/CommandLineOptions');
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end;
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function getLongIntParameter(str:String; var paramIndex:LongInt; var wrongParameter:Boolean): LongInt;
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var tmpInt, c: LongInt;
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begin
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    paramIndex:= paramIndex + 1;
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    val(str, tmpInt, c);
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    wrongParameter:= c <> 0;
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    if wrongParameter then
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        WriteLn(stderr, 'ERROR: '+ParamStr(paramIndex-1)+' expects a number, you passed "'+str+'"');
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    getLongIntParameter:= tmpInt;
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end;
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function getStringParameter(str:String; var paramIndex:LongInt): String;
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begin
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    paramIndex:= paramIndex + 1;
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    getStringParameter:= str;
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end;
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procedure parseClassicParameter(cmdArray: Array of String; size:LongInt; var paramIndex:LongInt); Forward;
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function parseParameter(cmd:String; arg:String; var paramIndex:LongInt): Boolean;
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const videoArray: Array [1..3] of String = ('--width','--height','--depth');
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const audioArray: Array [1..3] of String = ('--volume','--nomusic','--nosound');
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const otherArray: Array [1..3] of String = ('--locale','--fullscreen','--showfps');
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const mediaArray: Array [1..8] of String = ('--width','--height','--depth','--volume','--nomusic','--nosound','--locale','--fullscreen');
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const allArray: Array [1..12] of String = ('--width','--height','--depth','--volume','--nomusic','--nosound','--locale','--fullscreen','--showfps','--altdmg','--time','--lowquality');
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begin
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    parseParameter:= false;
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    case cmd of
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        '--locale'     : cLocaleFName   := getStringParameter (arg, paramIndex);
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        '--width'      : cScreenWidth   := getLongIntParameter(arg, paramIndex, parseParameter);
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        '--height'     : cScreenHeight  := getLongIntParameter(arg, paramIndex, parseParameter);
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        '--depth'      : cBits          := getLongIntParameter(arg, paramIndex, parseParameter);
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        '--time'       : cTimerInterval := getLongIntParameter(arg, paramIndex, parseParameter);
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        '--volume'     : SetVolume       ( getLongIntParameter(arg, paramIndex, parseParameter) );
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        '--nomusic'    : SetMusic        ( false );
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        '--nosound'    : SetSound        ( false );
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        '--fullscreen' : cFullScreen    := true;
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        '--showfps'    : cShowFPS       := true;
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        '--altdmg'     : cAltDamage     := true;
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        '--lowquality' : cReducedQuality:= ($FFFFFFFF * getLongIntParameter(arg, paramIndex, parseParameter)) xor rqLowRes; //HACK!
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        '--set-video'      : parseClassicParameter(videoArray,3,paramIndex);
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        '--set-audio'      : parseClassicParameter(audioArray,3,paramIndex);
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        '--set-other'      : parseClassicParameter(otherArray,3,paramIndex);
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        '--set-multimedia' : parseClassicParameter(mediaArray,8,paramIndex);
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        '--set-everything' : parseClassicParameter(allArray,12,paramIndex);
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        '--stats-only' : begin
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                         cOnlyStats:= true;
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                         SetSound(false);
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                         SetMusic(false);
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                         cReducedQuality:= $FFFFFFFF xor rqLowRes;
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                         end;
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        '--gci' : begin            //     We had to make up all this saved space some how...     \\
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                  WriteLn(stdout, '                                                                ');
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                  WriteLn(stdout, '      /\\\\\\\\\\\\        /\\\\\\\\\  /\\\\\\\\\\\             ');
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                  WriteLn(stdout, '     /\\\//////////      /\\\////////  \/////\\\///             ');
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                  WriteLn(stdout, '     /\\\               /\\\/               \/\\\               ');
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                  WriteLn(stdout, '     \/\\\    /\\\\\\\  /\\\                 \/\\\              ');
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                  WriteLn(stdout, '      \/\\\   \/////\\\ \/\\\                 \/\\\             ');
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                  WriteLn(stdout, '       \/\\\       \/\\\ \//\\\                \/\\\            ');
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                  WriteLn(stdout, '        \/\\\       \/\\\  \///\\\              \/\\\           ');
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                  WriteLn(stdout, '         \//\\\\\\\\\\\\/     \////\\\\\\\\\  /\\\\\\\\\\\      ');
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                  WriteLn(stdout, '          \////////////           \/////////  \///////////      ');
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                  WriteLn(stdout, '                                                                ');
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                  WriteLn(stdout, ' Command Line Parser Implementation by a Google Code-In Student ');
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                  WriteLn(stdout, '             ASCII Art easter egg idea by @sheepluva            ');
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                  WriteLn(stdout, '                                                                ');
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                  end;
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        '--help' : begin
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                   DisplayUsage();
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                   GameType:= gmtSyntax;
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                   end;
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    else
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        begin
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        WriteLn(stderr, 'ERROR: '+cmd+' is not a valid argument');
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        parseParameter:= true;
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        end
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    end;
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end;
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procedure parseClassicParameter(cmdArray: Array of String; size:LongInt; var paramIndex:LongInt);
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var index, tmpInt: LongInt;
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    isBool: Boolean;
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begin
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    index:= 0;
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    tmpInt:= 1;
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    while (index < size) do
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        begin
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        paramIndex:= paramIndex+1;
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        //This next line is a really strange (but short), way to check if the parameter is a boolean one
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        isBool:= true; case cmdArray[index] of '--nomusic':;'--nosound':;'--fullscreen':;'--showfps':;'--altdmg':;'--lowquality':; else isBool:= false; end;
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        if (not isBool) or ((ParamStr(paramIndex)='1') and (cmdArray[index]<>'--nomusic') and (cmdArray[index]<>'--nosound')) then
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            parseParameter(cmdArray[index], ParamStr(paramIndex), tmpInt);
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        //if isBool then
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        //  paramIndex:= paramIndex+1;
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        index:= index+1;
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        end;
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end;
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procedure playReplayFileWithParameters();
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var paramIndex, tmpInt: LongInt;
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    wrongParameter: boolean;
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begin
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    UserPathPrefix:= ParamStr(1);
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    PathPrefix:= ParamStr(2);
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    recordFileName:= ParamStr(3);
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    paramIndex:= 4;
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    wrongParameter:= false;
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    while (paramIndex <= ParamCount) do
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        begin
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        if parseParameter( ParamStr(paramIndex), ParamStr(paramIndex+1), paramIndex) then
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            wrongParameter:= true;
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        paramIndex:= paramIndex+1;
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        end;
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    if wrongParameter = true then
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        begin
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        WriteLn(stderr, 'Please use --help to see possible arguments and their usage');
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        GameType:= gmtSyntax;
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        end
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end;