hedgewars/uKeys.pas
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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 uKeys;
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interface
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{$INCLUDE options.inc}
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uses uConsts;
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type TBinds = array[0..cKeyMaxIndex] of shortstring;
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function KeyNameToCode(name: string): word;
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procedure ProcessKbd;
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procedure ResetKbd;
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procedure InitKbdKeyTable;
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procedure SetBinds(var binds: TBinds);
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procedure SetDefaultBinds;
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var KbdKeyPressed: boolean;
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implementation
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uses SDLh, uTeams, uConsole, uMisc;
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const KeyNumber = 1024;
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type TKeyboardState = array[0..cKeyMaxIndex] of Byte;
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var tkbd: TKeyboardState;
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    KeyNames: array [0..cKeyMaxIndex] of string[15];
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    DefaultBinds, CurrentBinds: TBinds;
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function KeyNameToCode(name: string): word;
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begin
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Result:= cKeyMaxIndex;
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while (Result > 0) and (KeyNames[Result] <> name) do dec(Result)
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end;
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procedure ProcessKbd;
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var  i: integer;
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     s: shortstring;
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     pkbd: PByteArray;
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     Trusted: boolean;
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begin
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KbdKeyPressed:= false;
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Trusted:= (CurrentTeam <> nil)
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          and (not CurrentTeam.ExtDriven)
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          and (CurrentTeam.Hedgehogs[CurrentTeam.CurrHedgehog].BotLevel = 0);
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pkbd:= SDL_GetKeyState(nil);
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i:= SDL_GetMouseState(nil, nil);
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pkbd^[1]:= (i and 1);
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pkbd^[2]:= ((i shr 1) and 1);
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pkbd^[3]:= ((i shr 2) and 1);
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for i:= 1 to cKeyMaxIndex do
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    if CurrentBinds[i][0] <> #0 then
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      begin
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      if (i > 3) and (pkbd^[i] <> 0) then KbdKeyPressed:= true;
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      if CurrentBinds[i][1] = '+' then
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          begin
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          if (pkbd^[i] <> 0)and(tkbd[i]  = 0) then ParseCommand(CurrentBinds[i], Trusted) else
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          if (pkbd^[i] =  0)and(tkbd[i] <> 0) then
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             begin
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             s:= CurrentBinds[i];
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             s[1]:= '-';
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             ParseCommand(s)
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             end;
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          end else
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          if (tkbd[i] = 0) and (pkbd^[i] <> 0) then ParseCommand(CurrentBinds[i], Trusted);
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       tkbd[i]:= pkbd^[i]
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       end
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end;
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procedure ResetKbd;
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var i, t: integer;
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    pkbd: PByteArray;
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begin
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pkbd:= PByteArray(SDL_GetKeyState(@i));
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TryDo(i < cKeyMaxIndex, 'SDL keys number is more than expected (' + inttostr(i) + ')', true);
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for t:= 0 to Pred(i) do
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    tkbd[i]:= pkbd^[i]
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end;
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procedure InitKbdKeyTable;
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var i, t: integer;
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    s: string[15];
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begin
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KeyNames[1]:= 'mousel';
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KeyNames[2]:= 'mousem';
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KeyNames[3]:= 'mouser';
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for i:= 4 to cKeyMaxIndex do
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    begin
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    s:= SDL_GetKeyName(i);
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    if s = 'unknown key' then KeyNames[i]:= ''
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       else begin
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       for t:= 1 to Length(s) do
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           if s[t] = ' ' then s[t]:= '_';
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       KeyNames[i]:= s
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       end;
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    end;
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DefaultBinds[ 27]:= 'quit';
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DefaultBinds[ 99]:= 'capture';
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DefaultBinds[102]:= 'fullscr';
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SetDefaultBinds
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end;
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procedure SetBinds(var binds: TBinds);
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begin
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CurrentBinds:= binds
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end;
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procedure SetDefaultBinds;
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begin
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CurrentBinds:= DefaultBinds
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end;
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initialization
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end.