(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2008 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 *)

unit uKeys;

interface

{$INCLUDE options.inc}

type TBinds = array[0..cKeyMaxIndex] of shortstring;

type TKeyboardState = array[0..cKeyMaxIndex] of Byte;

function  KeyNameToCode(name: string): word;

procedure ProcessKbd;

procedure ResetKbd;

procedure FreezeEnterKey;

procedure InitKbdKeyTable;

procedure SetBinds(var binds: TBinds);

procedure SetDefaultBinds;

procedure ControllerInit;

procedure ControllerClose;

procedure ControllerAxisEvent(joy, axis: Byte; value: Integer);

procedure ControllerHatEvent(joy, hat, value: Byte);

procedure ControllerButtonEvent(joy, button: Byte; pressed: Boolean);

	wheelUp: boolean = false;

	wheelDown: boolean = false;

{$IFDEF TOUCHINPUT}

        leftClick: boolean = false;

        middleClick: boolean = false;

        rightClick: boolean = false;

{$ENDIF}

	ControllerNumControllers: Integer;

	ControllerNumHats: array[0..5] of Integer;

	ControllerNumButtons: array[0..5] of Integer;

	ControllerAxes: array[0..5] of array[0..19] of Integer;

	//ControllerBalls: array[0..5] of array[0..19] of array[0..1] of Integer;

	ControllerHats: array[0..5] of array[0..19] of Byte;

	ControllerButtons: array[0..5] of array[0..19] of Byte;

implementation

const KeyNumber = 1024;

var tkbd, tkbdn: TKeyboardState;

    KeyNames: array [0..cKeyMaxIndex] of string[15];

    DefaultBinds, CurrentBinds: TBinds;

function KeyNameToCode(name: string): word;

var Result: Word;

begin

Result:= cKeyMaxIndex;

while (Result > 0) and (KeyNames[Result] <> name) do dec(Result);

KeyNameToCode:= Result

end;

procedure ProcessKbd;

var  i, j, k: LongInt;

     s: shortstring;

     pkbd: PByteArray;

     Trusted: boolean;

begin

hideAmmoMenu:= false;

Trusted:= (CurrentTeam <> nil)

          and (not CurrentTeam^.ExtDriven)

          and (CurrentHedgehog^.BotLevel = 0);

// move cursor/camera

// TODO: Scale on screen dimensions and/or axis value (game controller)?

movecursor(5 * CursorMovementX, 5 * CursorMovementY);

{$IFDEF SDL13}

pkbd := SDL_GetKeyboardState(@j);

k    := SDL_GetMouseState(0, nil, nil);

{$ELSE}

pkbd := SDL_GetKeyState(@j);

k    := SDL_GetMouseState(nil, nil);

{$ENDIF}

{$IFNDEF IPHONEOS}

for i:= 6 to pred(j) do // first 6 will be overwritten

	tkbdn[i]:= pkbd^[i];

{$ENDIF}

// mouse buttons

{$IFDEF DARWIN}

tkbdn[1]:= ((k and 1) and not (tkbdn[306] or tkbdn[305]));

tkbdn[3]:= ((k and 1) and (tkbdn[306] or tkbdn[305])) or (k and 4);

{$ELSE}

tkbdn[1]:= (k and 1);

tkbdn[3]:= ((k shr 2) and 1);

{$ENDIF}

tkbdn[2]:= ((k shr 1) and 1);

// mouse wheels (see event loop in project file)

tkbdn[4]:= ord(wheelDown);

tkbdn[5]:= ord(wheelUp);

wheelUp:= false;

wheelDown:= false;

{$IFDEF TOUCHINPUT}

tkbdn[1]:= ord(leftClick);

tkbdn[2]:= ord(middleClick);

tkbdn[3]:= ord(rightClick);

leftClick:= false;

middleClick:= false;

rightClick:= false;

tkbdn[23]:= ord(upKey);

tkbdn[24]:= ord(downKey);

tkbdn[25]:= ord(leftKey);

tkbdn[26]:= ord(rightKey);

tkbdn[ 8]:= ord(backspaceKey);

tkbdn[ 9]:= ord(tabKey);

tkbdn[13]:= ord(enterKey);

tkbdn[32]:= ord(spaceKey);

upKey:= false;

downKey:= false;

if isWalking = false then rightKey:= false;

if isWalking = false then leftKey:= false;

if isAttacking = false then spaceKey:= false;

tabKey:= false;

enterKey:= false;

backspaceKey:= false;

{$ENDIF}

// Controller(s)

k:= j; // should we test k for hitting the limit? sounds rather unlikely to ever reach it

for j:= 0 to Pred(ControllerNumControllers) do

	begin

	for i:= 0 to Pred(ControllerNumAxes[j]) do

		begin

		if ControllerAxes[j][i] > 20000 then tkbdn[k + 0]:= 1 else tkbdn[k + 0]:= 0;

		if ControllerAxes[j][i] < -20000 then tkbdn[k + 1]:= 1 else tkbdn[k + 1]:= 0;

		inc(k, 2);

		end;

	for i:= 0 to Pred(ControllerNumHats[j]) do

		begin

		tkbdn[k + 0]:= ControllerHats[j][i] and SDL_HAT_UP;

		tkbdn[k + 1]:= ControllerHats[j][i] and SDL_HAT_RIGHT;

		tkbdn[k + 2]:= ControllerHats[j][i] and SDL_HAT_DOWN;

		tkbdn[k + 3]:= ControllerHats[j][i] and SDL_HAT_LEFT;

		inc(k, 4);

		end;

	for i:= 0 to Pred(ControllerNumButtons[j]) do

		begin

		tkbdn[k]:= ControllerButtons[j][i];

		inc(k, 1);

		end;

	end;

// now process strokes

for i:= 0 to cKeyMaxIndex do

if CurrentBinds[i][0] <> #0 then

	begin

	if (i > 3) and (tkbdn[i] <> 0) and not ((CurrentBinds[i] = 'put') or (CurrentBinds[i] = 'ammomenu') or (CurrentBinds[i] = '+cur_u') or (CurrentBinds[i] = '+cur_d') or (CurrentBinds[i] = '+cur_l') or (CurrentBinds[i] = '+cur_r')) then hideAmmoMenu:= true;

	if (tkbd[i] = 0) and (tkbdn[i] <> 0) then ParseCommand(CurrentBinds[i], Trusted)

	else if (CurrentBinds[i][1] = '+')

			and (tkbdn[i] = 0)

			and (tkbd[i] <> 0) then

			begin

			s:= CurrentBinds[i];

			s[1]:= '-';

			ParseCommand(s, Trusted)

			end;

	tkbd[i]:= tkbdn[i]

	end

end;

procedure ResetKbd;

var i, j, k, t: LongInt;

    pkbd: PByteArray;

begin

{$IFDEF SDL13}

pkbd:= SDL_GetKeyboardState(@j);

k:= SDL_GetMouseState(0, nil, nil);

{$ELSE}

pkbd:= SDL_GetKeyState(@j);

k:= SDL_GetMouseState(nil, nil);

{$ENDIF}

TryDo(j < cKeyMaxIndex, 'SDL keys number is more than expected (' + inttostr(j) + ')', true);

{$IFNDEF IPHONEOS}

for i:= 1 to pred(j) do

	tkbdn[i]:= pkbd^[i];

{$ENDIF}

// mouse buttons

{$IFDEF DARWIN}

tkbdn[1]:= ((k and 1) and not (tkbdn[306] or tkbdn[305]));

tkbdn[3]:= ((k and 1) and (tkbdn[306] or tkbdn[305])) or (k and 4);

{$ELSE}

tkbdn[1]:= (k and 1);

tkbdn[3]:= ((k shr 2) and 1);

{$ENDIF}

tkbdn[2]:= ((k shr 1) and 1);

// mouse wheels (see event loop in project file)

tkbdn[4]:= ord(wheelDown);

tkbdn[5]:= ord(wheelUp);

wheelUp:= false;

wheelDown:= false;

{$IFDEF IPHONEOS}

tkbdn[1]:= ord(leftClick);

tkbdn[2]:= ord(middleClick);

tkbdn[3]:= ord(rightClick);

leftClick:= false;

middleClick:= false;

rightClick:= false;

tkbdn[23]:= ord(upKey);

tkbdn[24]:= ord(downKey);

tkbdn[25]:= ord(leftKey);

tkbdn[26]:= ord(rightKey);

tkbdn[ 8]:= ord(backspaceKey);

tkbdn[ 9]:= ord(tabKey);

tkbdn[13]:= ord(enterKey);

tkbdn[32]:= ord(spaceKey);

upKey:= false;

downKey:= false;

tabKey:= false;

if isWalking = false then rightKey:= false;

if isWalking = false then leftKey:= false;

if isAttacking = false then spaceKey:= false;

enterKey:= false;

backspaceKey:= false;

{$ENDIF}

// Controller(s)

k:= j; // should we test k for hitting the limit? sounds rather unlikely to ever reach it

for j:= 0 to Pred(ControllerNumControllers) do

	begin

	for i:= 0 to Pred(ControllerNumAxes[j]) do

		begin

		if ControllerAxes[j][i] > 20000 then tkbdn[k + 0]:= 1 else tkbdn[k + 0]:= 0;

		if ControllerAxes[j][i] < -20000 then tkbdn[k + 1]:= 1 else tkbdn[k + 1]:= 0;

		inc(k, 2);

		end;

	for i:= 0 to Pred(ControllerNumHats[j]) do

		begin

		tkbdn[k + 0]:= ControllerHats[j][i] and SDL_HAT_UP;

		tkbdn[k + 1]:= ControllerHats[j][i] and SDL_HAT_RIGHT;

		tkbdn[k + 2]:= ControllerHats[j][i] and SDL_HAT_DOWN;

		tkbdn[k + 3]:= ControllerHats[j][i] and SDL_HAT_LEFT;

		inc(k, 4);

		end;

	for i:= 0 to Pred(ControllerNumButtons[j]) do

		begin

		tkbdn[k]:= ControllerButtons[j][i];

		inc(k, 1);

		end;

	end;

for t:= 0 to cKeyMaxIndex do

    tkbd[i]:= tkbdn[i]

end;

procedure InitKbdKeyTable;

var i, j, k, t: LongInt;

    s: string[15];

begin

KeyNames[1]:= 'mousel';

KeyNames[2]:= 'mousem';

KeyNames[3]:= 'mouser';

KeyNames[4]:= 'wheelup';

KeyNames[5]:= 'wheeldown';

for i:= 6 to cKeyMaxIndex do

    begin

    s:= SDL_GetKeyName(i);

//	addfilelog(inttostr(i) + ' ' + s);

    if s = 'unknown key' then KeyNames[i]:= ''

       else begin

       for t:= 1 to Length(s) do

           if s[t] = ' ' then s[t]:= '_';

       KeyNames[i]:= s

       end;

    end;

{$IFDEF SDL13}

PByteArray(SDL_GetKeyboardState(@i));

{$ELSE}

SDL_GetKeyState(@i);

{$ENDIF}

// Controller(s)

k:= i;

for j:= 0 to Pred(ControllerNumControllers) do

	begin

	for i:= 0 to Pred(ControllerNumAxes[j]) do

		begin

		keynames[k + 0]:= 'j' + inttostr(j) + 'a' + inttostr(i) + 'u';

		keynames[k + 1]:= 'j' + inttostr(j) + 'a' + inttostr(i) + 'd';

		inc(k, 2);

		end;

	for i:= 0 to Pred(ControllerNumHats[j]) do

		begin

		keynames[k + 0]:= 'j' + inttostr(j) + 'h' + inttostr(i) + 'u';

		keynames[k + 1]:= 'j' + inttostr(j) + 'h' + inttostr(i) + 'r';

		keynames[k + 2]:= 'j' + inttostr(j) + 'h' + inttostr(i) + 'd';

		keynames[k + 3]:= 'j' + inttostr(j) + 'h' + inttostr(i) + 'l';

		inc(k, 4);

		end;

	for i:= 0 to Pred(ControllerNumButtons[j]) do

		begin

		keynames[k]:= 'j' + inttostr(j) + 'b' + inttostr(i);

		inc(k, 1);

		end;

	end;

{$IFDEF TOUCHINPUT}

DefaultBinds[  1]:= '/put';

DefaultBinds[  3]:= 'ammomenu';

DefaultBinds[  8]:= 'hjump';

DefaultBinds[  9]:= 'switch';

DefaultBinds[ 13]:= 'ljump';

DefaultBinds[ 23]:= '+up';

DefaultBinds[ 24]:= '+down';

DefaultBinds[ 25]:= '+left';

DefaultBinds[ 26]:= '+right';

DefaultBinds[ 32]:= '+attack';

{$ENDIF}

DefaultBinds[ 27]:= 'quit';

DefaultBinds[ 96]:= 'history';

DefaultBinds[127]:= 'rotmask';

DefaultBinds[KeyNameToCode('0')]:= '+volup';

DefaultBinds[KeyNameToCode('9')]:= '+voldown';

DefaultBinds[KeyNameToCode('c')]:= 'capture';

DefaultBinds[KeyNameToCode('h')]:= 'findhh';

DefaultBinds[KeyNameToCode('p')]:= 'pause';

DefaultBinds[KeyNameToCode('s')]:= '+speedup';

DefaultBinds[KeyNameToCode('t')]:= 'chat';

DefaultBinds[KeyNameToCode('y')]:= 'confirm';

DefaultBinds[KeyNameToCode('mousem')]:= 'zoomreset';

DefaultBinds[KeyNameToCode('wheelup')]:= 'zoomout';

DefaultBinds[KeyNameToCode('wheeldown')]:= 'zoomin';

DefaultBinds[KeyNameToCode('f12')]:= 'fullscr';

SetDefaultBinds

end;

procedure SetBinds(var binds: TBinds);

begin

CurrentBinds:= binds

end;

procedure SetDefaultBinds;

begin

CurrentBinds:= DefaultBinds

end;

procedure FreezeEnterKey;

begin

tkbd[13]:= 1;

tkbd[271]:= 1;

end;

procedure ControllerInit;

var i, j: Integer;

begin

ControllerEnabled:= 0;

ControllerNumControllers:= SDL_NumJoysticks;

if ControllerNumControllers > 6 then ControllerNumControllers:= 6;

WriteLnToConsole('Number of game controllers: ' + inttostr(ControllerNumControllers));

if ControllerNumControllers > 0 then

	begin

	for j:= 0 to pred(ControllerNumControllers) do

		begin

		WriteLnToConsole('Using game controller: ' + SDL_JoystickName(j));

		Controller[j]:= SDL_JoystickOpen(j);

		if Controller[j] = nil then

			WriteLnToConsole('* Failed to open game controller!')

		else

			begin

			ControllerNumAxes[j]:= SDL_JoystickNumAxes(Controller[j]);

			//ControllerNumBalls[j]:= SDL_JoystickNumBalls(Controller[j]);

			ControllerNumHats[j]:= SDL_JoystickNumHats(Controller[j]);

			ControllerNumButtons[j]:= SDL_JoystickNumButtons(Controller[j]);

			WriteLnToConsole('* Number of axes: ' + inttostr(ControllerNumAxes[j]));

			//WriteLnToConsole('* Number of balls: ' + inttostr(ControllerNumBalls[j]));

			WriteLnToConsole('* Number of hats: ' + inttostr(ControllerNumHats[j]));

			WriteLnToConsole('* Number of buttons: ' + inttostr(ControllerNumButtons[j]));

			ControllerEnabled:= 1;

			if ControllerNumAxes[j] > 20 then ControllerNumAxes[j]:= 20;

			//if ControllerNumBalls[j] > 20 then ControllerNumBalls[j]:= 20;

			if ControllerNumHats[j] > 20 then ControllerNumHats[j]:= 20;

			if ControllerNumButtons[j] > 20 then ControllerNumButtons[j]:= 20;

			// reset all buttons/axes

			for i:= 0 to pred(ControllerNumAxes[j]) do

				ControllerAxes[j][i]:= 0;

			(*for i:= 0 to pred(ControllerNumBalls[j]) do

				begin

				ControllerBalls[j][i][0]:= 0;

				ControllerBalls[j][i][1]:= 0;

				end;*)

			for i:= 0 to pred(ControllerNumHats[j]) do

				ControllerHats[j][i]:= SDL_HAT_CENTERED;

			for i:= 0 to pred(ControllerNumButtons[j]) do

				ControllerButtons[j][i]:= 0;

			end;

		end;

	// enable event generation/controller updating

	SDL_JoystickEventState(1);

	end

else	

	WriteLnToConsole('Not using any game controller');

end;

procedure ControllerClose;

var j: Integer;

begin

if ControllerEnabled > 0 then

	for j:= 0 to pred(ControllerNumControllers) do

		SDL_JoystickClose(Controller[j]);

end;

procedure ControllerAxisEvent(joy, axis: Byte; value: Integer);

begin

	ControllerAxes[joy][axis]:= value;

end;

procedure ControllerHatEvent(joy, hat, value: Byte);

begin

	ControllerHats[joy][hat]:= value;

end;