hedgewars/uConsole.pas
author nemo
Tue, 26 Jul 2011 23:46:41 -0400
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child 5286 22c1f4833a86
permissions -rw-r--r--
example of an SD art. mine from openclipart
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2011 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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{$INCLUDE "options.inc"}
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unit uConsole;
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interface
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procedure initModule;
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procedure freeModule;
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procedure WriteToConsole(s: shortstring);
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procedure WriteLnToConsole(s: shortstring);
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function  GetLastConsoleLine: shortstring;
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implementation
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uses Types, uVariables, uUtils;
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const cLineWidth: LongInt = 0;
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      cLinesCount = 8;
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type
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      TTextLine = record
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                  s: shortstring;
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                  end;
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var   ConsoleLines: array[byte] of TTextLine;
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      CurrLine: LongInt;
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procedure SetLine(var tl: TTextLine; str: shortstring);
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begin
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with tl do
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     s:= str;
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end;
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procedure WriteToConsole(s: shortstring);
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var Len: LongInt;
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    done: boolean;
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begin
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{$IFNDEF NOCONSOLE}
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AddFileLog('[Con] ' + s);
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Write(stderr, s);
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done:= false;
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while not done do
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    begin
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    Len:= cLineWidth - Length(ConsoleLines[CurrLine].s);
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    SetLine(ConsoleLines[CurrLine], ConsoleLines[CurrLine].s + copy(s, 1, Len));
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    Delete(s, 1, Len);
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    if byte(ConsoleLines[CurrLine].s[0]) = cLineWidth then
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        begin
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        inc(CurrLine);
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        if CurrLine = cLinesCount then CurrLine:= 0;
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        PByte(@ConsoleLines[CurrLine].s)^:= 0
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        end;
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    done:= (Length(s) = 0);
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    end;
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{$ENDIF}
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end;
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procedure WriteLnToConsole(s: shortstring);
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begin
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{$IFNDEF NOCONSOLE}
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WriteToConsole(s);
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WriteLn(stderr);
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inc(CurrLine);
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if CurrLine = cLinesCount then
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    CurrLine:= 0;
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PByte(@ConsoleLines[CurrLine].s)^:= 0
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{$ENDIF}
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end;
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function GetLastConsoleLine: shortstring;
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var valueStr: shortstring;
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    i: LongWord;
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begin
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i:= (CurrLine + cLinesCount - 2) mod cLinesCount;
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valueStr:= ConsoleLines[i].s;
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valueStr:= valueStr + #10;
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i:= (CurrLine + cLinesCount - 1) mod cLinesCount;
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valueStr:= valueStr + ConsoleLines[i].s;
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GetLastConsoleLine:= valueStr;
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end;
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procedure initModule;
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var i: LongInt;
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begin
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    CurrLine:= 0;
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    // initConsole
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    cLineWidth:= cScreenWidth div 10;
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    if cLineWidth > 255 then
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        cLineWidth:= 255;
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    for i:= 0 to Pred(cLinesCount) do
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        PByte(@ConsoleLines[i])^:= 0;
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end;
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procedure freeModule;
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begin
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end;
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end.