hedgewars/uKeys.pas
author unc0rr
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2008 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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unit uKeys;
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interface
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uses uConsts;
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{$INCLUDE options.inc}
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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 FreezeEnterKey;
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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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var Result: 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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KeyNameToCode:= Result
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end;
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procedure ProcessKbd;
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var  i: LongInt;
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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 (CurrentHedgehog^.BotLevel = 0);
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{$IFDEF SDL13}
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pkbd:= SDL_GetKeyboardState(nil);
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{$ELSE}
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pkbd:= SDL_GetKeyState(nil);
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{$ENDIF}
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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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{$IFDEF DARWIN}
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//    normal right click     ||      ctrl (left/right) + left click	  
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pkbd^[3]:= ((i shr 2) and 1) or ((i and 1) and (pkbd^[306] or pkbd^[305]));
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{$ELSE}
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pkbd^[3]:= ((i shr 2) and 1);
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{$ENDIF}
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for i:= 1 to cKeyMaxIndex do
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if CurrentBinds[i][0] <> #0 then
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	begin
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	if (i > 3) and (pkbd^[i] <> 0) then KbdKeyPressed:= true;
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	if (tkbd[i] = 0) and (pkbd^[i] <> 0) then ParseCommand(CurrentBinds[i], Trusted)
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	else if (CurrentBinds[i][1] = '+')
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			and (pkbd^[i] = 0)
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			and (tkbd[i] <> 0) then
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			begin
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			s:= CurrentBinds[i];
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			s[1]:= '-';
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			ParseCommand(s, Trusted)
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			end;
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	tkbd[i]:= pkbd^[i]
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	end
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end;
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procedure ResetKbd;
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var i, t: LongInt;
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    pkbd: PByteArray;
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begin
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{$IFDEF SDL13}
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pkbd:= PByteArray(SDL_GetKeyboardState(@i));
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{$ELSE}
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pkbd:= PByteArray(SDL_GetKeyState(@i));
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{$ENDIF}
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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: LongInt;
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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[ 48]:= '+volup';
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DefaultBinds[ 57]:= '+voldown';
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DefaultBinds[ 44]:= 'history';	// , instead of `
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DefaultBinds[ 96]:= 'history';
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DefaultBinds[ 99]:= 'capture';
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DefaultBinds[104]:= 'findhh';
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DefaultBinds[112]:= 'pause';
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DefaultBinds[115]:= '+speedup';
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DefaultBinds[116]:= 'chat';
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DefaultBinds[121]:= 'confirm';
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DefaultBinds[127]:= 'rotmask';
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DefaultBinds[KeyNameToCode('f12')]:= '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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procedure FreezeEnterKey;
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begin
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tkbd[13]:= 1;
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tkbd[271]:= 1
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end;
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initialization
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end.