hedgewars/uConsole.pas
author unc0rr
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(*
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 * Hedgewars, a worms-like game
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 * Copyright (c) 2004, 2005 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * Distributed under the terms of the BSD-modified licence:
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * with the Software without restriction, including without limitation the
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 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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 * sell copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * 1. Redistributions of source code must retain the above copyright notice,
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 *    this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 *    this list of conditions and the following disclaimer in the documentation
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 *    and/or other materials provided with the distribution.
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 * 3. The name of the author may not be used to endorse or promote products
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 *    derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *)
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unit uConsole;
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interface
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uses SDLh;
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{$INCLUDE options.inc}
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const isDeveloperMode: boolean = true;
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type TVariableType = (vtCommand, vtInteger, vtReal, vtBoolean);
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     TCommandHandler = procedure (var params: shortstring);
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procedure DrawConsole(Surface: PSDL_Surface);
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procedure WriteToConsole(s: shortstring);
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procedure WriteLnToConsole(s: shortstring);
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procedure KeyPressConsole(Key: Longword);
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procedure ParseCommand(CmdStr: shortstring);
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procedure AfterAttack; // экспортируется только для вызова из CurrAmmoGear
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implementation
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{$J+}
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uses uMisc, uStore, Types, uConsts, uGears, uTeams, uIO, uKeys, uSound, uWorld, uLand;
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const cLineWidth: integer = 0;
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      cLinesCount = 256;
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type  PVariable = ^TVariable;
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      TVariable = record
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                     Next: PVariable;
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                     Name: string[15];
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                    VType: TVariableType;
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                  Handler: pointer;
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                  end;
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var   ConsoleLines: array[byte] of ShortString;
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      CurrLine: integer = 0;
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      InputStr: shortstring;
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      Variables: PVariable = nil;
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function RegisterVariable(Name: string; VType: TVariableType; p: pointer): PVariable;
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begin
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New(Result);
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TryDo(Result <> nil, 'RegisterVariable: Result = nil', true);
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FillChar(Result^, sizeof(TVariable), 0);
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Result.Name:= Name;
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Result.VType:= VType;
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Result.Handler:= p;
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if Variables = nil then Variables:= Result
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                   else begin
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                        Result.Next:= Variables;
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                        Variables:= Result
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                        end
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end;
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procedure FreeVariablesList;
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var t, tt: PVariable;
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begin
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tt:= Variables;
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Variables:= nil;
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while tt<>nil do
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      begin
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      t:= tt;
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      tt:= tt.Next;
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      Dispose(t)
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      end;
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end;
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procedure SplitBySpace(var a, b: shortstring);
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var i, t: integer;
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begin
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i:= Pos(' ', a);
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if i>0 then
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   begin
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   for t:= 1 to Pred(i) do
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       if (a[t] >= 'A')and(a[t] <= 'Z') then Inc(a[t], 32);
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   b:= copy(a, i + 1, Length(a) - i);
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   while (b[0]<>#0) and (b[1]=#32) do Delete(b, 1, 1);
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   byte(a[0]):= Pred(i)
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   end else b:= '';
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end;
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procedure DrawConsole(Surface: PSDL_Surface);
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var x, y: integer;
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    r: TSDL_Rect;
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begin
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with r do
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     begin
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     x:= 0;
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     y:= cConsoleHeight;
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     w:= cScreenWidth;
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     h:= 4;
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     end;
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SDL_FillRect(Surface, @r, cConsoleSplitterColor);
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for y:= 0 to cConsoleHeight div 256 + 1 do
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    for x:= 0 to cScreenWidth div 256 + 1 do
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        DrawGear(sConsoleBG, x * 256, cConsoleHeight - 256 - y * 256, Surface);
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for y:= 0 to cConsoleHeight div Fontz[fnt16].Height do
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    DXOutText(4, cConsoleHeight - (y + 2) * (Fontz[fnt16].Height + 2), fnt16, ConsoleLines[(CurrLine - 1 - y + cLinesCount) mod cLinesCount], Surface);
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DXOutText(4, cConsoleHeight - Fontz[fnt16].Height - 2, fnt16, '> '+InputStr, Surface);
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end;
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procedure WriteToConsole(s: shortstring);
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var Len: integer;
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begin
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{$IFDEF DEBUGFILE}AddFileLog('Console write: ' + s);{$ENDIF}
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Write(s);
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repeat
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Len:= cLineWidth - Length(ConsoleLines[CurrLine]);
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ConsoleLines[CurrLine]:= ConsoleLines[CurrLine] + copy(s, 1, Len);
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Delete(s, 1, Len);
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if byte(ConsoleLines[CurrLine][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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   PLongWord(@ConsoleLines[CurrLine])^:= 0
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   end;
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until Length(s) = 0
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end;
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procedure WriteLnToConsole(s: shortstring);
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begin
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WriteToConsole(s);
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WriteLn;
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inc(CurrLine);
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if CurrLine = cLinesCount then CurrLine:= 0;
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PLongWord(@ConsoleLines[CurrLine])^:= 0
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end;
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procedure InitConsole;
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var i: integer;
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begin
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cLineWidth:= cScreenWidth div 10;
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if cLineWidth > 255 then cLineWidth:= 255;
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for i:= 0 to Pred(cLinesCount) do PLongWord(@ConsoleLines[i])^:= 0
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end;
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procedure ParseCommand(CmdStr: shortstring);
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type PReal = ^real;
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var i, ii: integer;
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    s: shortstring;
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    t: PVariable;
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    c: char;
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begin
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//WriteLnToConsole(CmdStr);
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if CmdStr[0]=#0 then exit;
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{$IFDEF DEBUGFILE}AddFileLog('ParseCommand "' + CmdStr + '"');{$ENDIF}
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c:= CmdStr[1];
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if c in ['/', '$'] then Delete(CmdStr, 1, 1) else c:= '/';
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SplitBySpace(CmdStr, s);
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t:= Variables;
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while t <> nil do
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      begin
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      if t.Name = CmdStr then
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         begin
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         case t.VType of
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              vtCommand: if c='/' then
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                         begin
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                         TCommandHandler(t.Handler)(s);
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                         end;
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              vtInteger: if c='$' then
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                         if s[0]=#0 then
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                            begin
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                            str(PInteger(t.Handler)^, s);
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                            WriteLnToConsole('$' + CmdStr + ' is "' + s + '"');
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                            end else val(s, PInteger(t.Handler)^, i);
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                 vtReal: if c='$' then
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                         if s[0]=#0 then
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                            begin
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                            str(PReal(t.Handler)^:4:6, s);
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                            WriteLnToConsole('$' + CmdStr + ' is "' + s + '"');
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                            end else val(s, PReal(t.Handler)^   , i);
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             vtBoolean: if c='$' then
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                         if s[0]=#0 then
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                            begin
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                            str(ord(boolean(t.Handler^)), s);
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                            WriteLnToConsole('$' + CmdStr + ' is "' + s + '"');
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                            end else
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                            begin
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                            val(s, ii, i);
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                            boolean(t.Handler^):= not (ii = 0)
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                            end;
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              end;
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         exit
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         end else t:= t.Next
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      end;
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case c of
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     '$': WriteLnToConsole(errmsgUnknownVariable + ': "$' + CmdStr + '"')
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     else WriteLnToConsole(errmsgUnknownCommand  + ': "/' + CmdStr + '"') end
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end;
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procedure KeyPressConsole(Key: Longword);
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begin
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case Key of
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      8: if Length(InputStr)>0 then dec(InputStr[0]);
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 13,271: begin
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         ParseCommand('/say ' + InputStr);
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         InputStr:= ''
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         end;
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     96: begin
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         GameState:= gsGame;
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         cConsoleYAdd:= 0;
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         ResetKbd
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         end;
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     else InputStr:= InputStr + char(Key)
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     end
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end;
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{$INCLUDE CCHandlers.inc}
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procedure AfterAttack;
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begin
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with CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].Gear^,
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     CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog] do
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     begin
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        Inc(AttacksNum);
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        State:= State and not gstAttacking;
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        if Ammo[CurSlot, CurAmmo].NumPerTurn >= AttacksNum then isInMultiShoot:= true
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           else begin
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           TurnTimeLeft:= Ammoz[Ammo[CurSlot, CurAmmo].AmmoType].TimeAfterTurn;
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           State:= State or gstAttacked;
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           OnUsedAmmo(Ammo)
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           end;
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     AttackBar:= 0
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     end
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end;
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initialization
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InitConsole;
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RegisterVariable('quit'    , vtCommand, @chQuit         );
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RegisterVariable('capture' , vtCommand, @chCapture      );
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RegisterVariable('addteam' , vtCommand, @chAddTeam      );
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RegisterVariable('rdriven' , vtCommand, @chTeamLocal    );
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//RegisterVariable('gravity' , vtReal   , @cGravity       ); гравитация не должна быть доступна вообще
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RegisterVariable('c_height', vtInteger, @cConsoleHeight );
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RegisterVariable('gmflags' , vtInteger, @GameFlags      );
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RegisterVariable('showfps' , vtBoolean, @cShowFPS       );
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RegisterVariable('sound'   , vtBoolean, @isSoundEnabled );
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RegisterVariable('name'    , vtCommand, @chName         );
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RegisterVariable('fort'    , vtCommand, @chFort         );
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RegisterVariable('grave'   , vtCommand, @chGrave        );
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RegisterVariable('bind'    , vtCommand, @chBind         );
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RegisterVariable('add'     , vtCommand, @chAdd          );
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RegisterVariable('say'     , vtCommand, @chSay          );
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RegisterVariable('+left'   , vtCommand, @chLeft_p       );
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RegisterVariable('-left'   , vtCommand, @chLeft_m       );
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RegisterVariable('+right'  , vtCommand, @chRight_p      );
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RegisterVariable('-right'  , vtCommand, @chRight_m      );
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RegisterVariable('+up'     , vtCommand, @chUp_p         );
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RegisterVariable('-up'     , vtCommand, @chUp_m         );
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RegisterVariable('+down'   , vtCommand, @chDown_p       );
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RegisterVariable('-down'   , vtCommand, @chDown_m       );
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RegisterVariable('+attack' , vtCommand, @chAttack_p     );
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RegisterVariable('-attack' , vtCommand, @chAttack_m     );
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RegisterVariable('color'   , vtCommand, @chColor        );
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RegisterVariable('switch'  , vtCommand, @chSwitch       );
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RegisterVariable('nextturn', vtCommand, @chNextTurn     );
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RegisterVariable('timer'   , vtCommand, @chTimer        );
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RegisterVariable('slot'    , vtCommand, @chSlot         );
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RegisterVariable('put'     , vtCommand, @chPut          );
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RegisterVariable('ljump'   , vtCommand, @chLJump        );
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RegisterVariable('hjump'   , vtCommand, @chHJump        );
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finalization
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FreeVariablesList
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end.