(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2013 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

 *)

{$INCLUDE "options.inc"}

unit uChat;

interface

procedure initModule;

procedure freeModule;

procedure ReloadLines;

procedure CleanupInput;

procedure AddChatString(s: shortstring);

procedure DrawChat;

procedure KeyPressChat(Key, Sym: Longword);

implementation

uses SDLh, uInputHandler, uTypes, uVariables, uCommands, uUtils, uTextures, uRender, uIO;

const MaxStrIndex = 27;

type TChatLine = record

    Tex: PTexture;

    Time: Longword;

    Width: LongInt;

    s: shortstring;

    end;

    TChatCmd = (quit, pause, finish, showhistory, fullscreen);

var Strs: array[0 .. MaxStrIndex] of TChatLine;

    MStrs: array[0 .. MaxStrIndex] of shortstring;

    LocalStrs: array[0 .. MaxStrIndex] of shortstring;

    missedCount: LongWord;

    lastStr: LongWord;

    localLastStr: LongInt;

    history: LongInt;

    visibleCount: LongWord;

    InputStr: TChatLine;

    InputStrL: array[0..260] of char; // for full str + 4-byte utf-8 char

    ChatReady: boolean;

    showAll: boolean;

const

    colors: array[#0..#6] of TSDL_Color = (

            (r:$FF; g:$FF; b:$FF; a:$FF), // unused, feel free to take it for anything

            (r:$FF; g:$FF; b:$FF; a:$FF), // chat message [White]

            (r:$FF; g:$00; b:$FF; a:$FF), // action message [Purple]

            (r:$90; g:$FF; b:$90; a:$FF), // join/leave message [Lime]

            (r:$FF; g:$FF; b:$A0; a:$FF), // team message [Light Yellow]

            (r:$FF; g:$00; b:$00; a:$FF), // error messages [Red]

            (r:$00; g:$FF; b:$FF; a:$FF)  // input line [Light Blue]

            );

    ChatCommandz: array [TChatCmd] of record

            ChatCmd: string[31];

            ProcedureCallChatCmd: string[31];

            end = (

            (ChatCmd: '/quit'; ProcedureCallChatCmd: 'halt'),

            (ChatCmd: '/pause'; ProcedureCallChatCmd: 'pause'),

            (ChatCmd: '/finish'; ProcedureCallChatCmd: 'finish'),

            (ChatCmd: '/history'; ProcedureCallChatCmd: 'history'),

            (ChatCmd: '/fullscreen'; ProcedureCallChatCmd: 'fullscr')

            );

procedure SetLine(var cl: TChatLine; str: shortstring; isInput: boolean);

var strSurface, resSurface: PSDL_Surface;

    w, h: LongInt;

    color: TSDL_Color;

    font: THWFont;

begin

if cl.Tex <> nil then

    FreeTexture(cl.Tex);

cl.s:= str;

if isInput then

    begin

    color:= colors[#6];

    str:= UserNick + '> ' + str + '_'

    end

else

    begin

    color:= colors[str[1]];

    delete(str, 1, 1)

    end;

font:= CheckCJKFont(str, fnt16);

w:= 0; h:= 0; // avoid compiler hints

TTF_SizeUTF8(Fontz[font].Handle, Str2PChar(str), @w, @h);

resSurface:= SDL_CreateRGBSurface(0, toPowerOf2(w), toPowerOf2(h), 32, RMask, GMask, BMask, AMask);

strSurface:= TTF_RenderUTF8_Solid(Fontz[font].Handle, Str2PChar(str), color);

cl.Width:= w + 4;

SDL_UpperBlit(strSurface, nil, resSurface, nil);

SDL_FreeSurface(strSurface);

cl.Time:= RealTicks + 12500;

cl.Tex:= Surface2Tex(resSurface, false);

SDL_FreeSurface(resSurface)

end;

// For uStore texture recreation

procedure ReloadLines;

var i, t: LongWord;

begin

    if InputStr.s <> '' then

        SetLine(InputStr, InputStr.s, true);

    for i:= 0 to MaxStrIndex do

        if Strs[i].s <> '' then

            begin

            t:= Strs[i].Time;

            SetLine(Strs[i], Strs[i].s, false);

            Strs[i].Time:= t

            end;

end;

procedure AddChatString(s: shortstring);

begin

if not ChatReady then

    begin

    if MissedCount < MaxStrIndex - 1 then

        MStrs[MissedCount]:= s

    else if MissedCount < MaxStrIndex then

        MStrs[MissedCount]:= #5 + '[...]';

    inc(MissedCount);

    exit

    end;

lastStr:= (lastStr + 1) mod (MaxStrIndex + 1);

SetLine(Strs[lastStr], s, false);

inc(visibleCount)

end;

procedure DrawChat;

var i, t, cnt: Longword;

    r: TSDL_Rect;

begin

ChatReady:= true; // maybe move to somewhere else?

if MissedCount <> 0 then // there are chat strings we missed, so print them now

    begin

    for i:= 0 to MissedCount - 1 do

        AddChatString(MStrs[i]);

    MissedCount:= 0;

    end;

cnt:= 0;

t:= 0;

i:= lastStr;

r.x:= 6 - cScreenWidth div 2;

r.y:= (visibleCount - t) * 16 + 10;

r.h:= 16;

if (GameState = gsChat) and (InputStr.Tex <> nil) then

    begin

    r.w:= InputStr.Width;

    DrawFillRect(r);

    Tint($00, $00, $00, $80);

    DrawTexture(9 - cScreenWidth div 2, visibleCount * 16 + 11, InputStr.Tex);

    untint;

    DrawTexture(8 - cScreenWidth div 2, visibleCount * 16 + 10, InputStr.Tex);

    end;

dec(r.y, 16);

while (((t < 7) and (Strs[i].Time > RealTicks)) or ((t < MaxStrIndex) and showAll))

and (Strs[i].Tex <> nil) do

    begin

    r.w:= Strs[i].Width;

    DrawFillRect(r);

    Tint($00, $00, $00, $80);

    DrawTexture(9 - cScreenWidth div 2, (visibleCount - t) * 16 - 5, Strs[i].Tex);

    untint;

    DrawTexture(8 - cScreenWidth div 2, (visibleCount - t) * 16 - 6, Strs[i].Tex);

    dec(r.y, 16);

    if i = 0 then

        i:= MaxStrIndex

    else

        dec(i);

    inc(cnt);

    inc(t)

    end;

visibleCount:= cnt;

end;

procedure SendHogSpeech(s: shortstring);

begin

SendIPC('h' + s);

ParseCommand('/hogsay '+s, true)

end;

procedure AcceptChatString(s: shortstring);

var i: TWave;

    j: TChatCmd;

    c, t: LongInt;

    x: byte;

begin

t:= LocalTeam;

x:= 0;

if (s[1] = '"') and (s[Length(s)] = '"')

    then x:= 1

else if (s[1] = '''') and (s[Length(s)] = '''') then

    x:= 2

else if (s[1] = '-') and (s[Length(s)] = '-') then

    x:= 3;

if not CurrentTeam^.ExtDriven and (x <> 0) then

    for c:= 0 to Pred(TeamsCount) do

        if (TeamsArray[c] = CurrentTeam) then

            t:= c;

if x <> 0 then

    begin

    if t = -1 then

        ParseCommand('/say ' + copy(s, 2, Length(s)-2), true)

    else

        SendHogSpeech(char(x) + char(t) + copy(s, 2, Length(s)-2));

    exit

    end;

// These 3 are same as above, only are to make the hedgehog say it on next attack

if (s[1] = '/') and (copy(s, 1, 5) = '/hsa ') then

    begin

    if CurrentTeam^.ExtDriven then

        ParseCommand('/say ' + copy(s, 6, Length(s)-5), true)

    else

        SendHogSpeech(#4 + copy(s, 6, Length(s)-5));

    exit

    end;

if (s[1] = '/') and (copy(s, 1, 5) = '/hta ') then

    begin

    if CurrentTeam^.ExtDriven then

        ParseCommand('/say ' + copy(s, 6, Length(s)-5), true)

    else

        SendHogSpeech(#5 + copy(s, 6, Length(s)-5));

    exit

    end;

if (s[1] = '/') and (copy(s, 1, 5) = '/hya ') then

    begin

    if CurrentTeam^.ExtDriven then

        ParseCommand('/say ' + copy(s, 6, Length(s)-5), true)

    else

        SendHogSpeech(#6 + copy(s, 6, Length(s)-5));

    exit

    end;

if (copy(s, 1, 6) = '/team ') and (length(s) > 6) then

    begin

    ParseCommand(s, true);

    exit

    end;

if (s[1] = '/') and (copy(s, 1, 4) <> '/me ') then

    begin

    if CurrentTeam^.ExtDriven or (CurrentTeam^.Hedgehogs[0].BotLevel <> 0) then

        exit;

    for i:= Low(TWave) to High(TWave) do

        if (s = Wavez[i].cmd) then

            begin

            ParseCommand('/taunt ' + char(i), true);

            exit

            end;

    for j:= Low(TChatCmd) to High(TChatCmd) do

        if (s = ChatCommandz[j].ChatCmd) then

            begin

            ParseCommand(ChatCommandz[j].ProcedureCallChatCmd, true);

            exit

            end;

    end

    else

        ParseCommand('/say ' + s, true);

end;

procedure CleanupInput;

begin

    FreezeEnterKey;

    history:= 0;

{$IFNDEF SDL2}

    SDL_EnableKeyRepeat(0,0);

{$ENDIF}

    GameState:= gsGame;

    ResetKbd;

end;

procedure KeyPressChat(Key, Sym: Longword);

const firstByteMark: array[0..3] of byte = (0, $C0, $E0, $F0);

var i, btw, index: integer;

    utf8: shortstring;

    action: boolean;

begin

    action:= true;

    case Sym of

        SDLK_BACKSPACE:

            begin

            if Length(InputStr.s) > 0 then

                begin

                InputStr.s[0]:= InputStrL[byte(InputStr.s[0])];

                SetLine(InputStr, InputStr.s, true)

                end

            end;

        SDLK_ESCAPE:

            begin

            if Length(InputStr.s) > 0 then

                SetLine(InputStr, '', true)

            else CleanupInput

            end;

        SDLK_RETURN, SDLK_KP_ENTER:

            begin

            if Length(InputStr.s) > 0 then

                begin

                AcceptChatString(InputStr.s);

                SetLine(InputStr, '', false)

                end;

            CleanupInput

            end;

        SDLK_UP, SDLK_DOWN:

            begin

            if (Sym = SDLK_UP) and (history < localLastStr) then inc(history);

            if (Sym = SDLK_DOWN) and (history > 0) then dec(history);

            index:= localLastStr - history + 1;

            if (index > localLastStr) then

                 SetLine(InputStr, '', true)

            else SetLine(InputStr, LocalStrs[index], true)

            end;

        SDLK_RIGHT, SDLK_LEFT, SDLK_DELETE,

        SDLK_HOME, SDLK_END,

        SDLK_PAGEUP, SDLK_PAGEDOWN:

            begin

            // ignore me!!!

            end;

        else

            action:= false;

        end;

    if not action and (Key <> 0) then

        begin

        if (Key < $80) then

            btw:= 1

        else if (Key < $800) then

            btw:= 2

        else if (Key < $10000) then

            btw:= 3

        else

            btw:= 4;

        utf8:= '';

        for i:= btw downto 2 do

            begin

            utf8:= char((Key or $80) and $BF) + utf8;

            Key:= Key shr 6

            end;

        utf8:= char(Key or firstByteMark[Pred(btw)]) + utf8;

        if byte(InputStr.s[0]) + btw > 240 then

            exit;

        InputStrL[byte(InputStr.s[0]) + btw]:= InputStr.s[0];

        SetLine(InputStr, InputStr.s + utf8, true)

        end

end;

procedure chChatMessage(var s: shortstring);

begin

    AddChatString(s)

end;

procedure chSay(var s: shortstring);

begin

    SendIPC('s' + s);

    if copy(s, 1, 4) = '/me ' then

        s:= #2 + '* ' + UserNick + ' ' + copy(s, 5, Length(s) - 4)

    else

        begin

        localLastStr:= (localLastStr + 1) mod MaxStrIndex;

        LocalStrs[localLastStr]:= s;

        s:= #1 + UserNick + ': ' + s;

        end;

    AddChatString(s)

end;

procedure chTeamSay(var s: shortstring);

begin

    SendIPC('b' + s);

    s:= #4 + '[Team] ' + UserNick + ': ' + s;

    AddChatString(s)

end;

procedure chHistory(var s: shortstring);

begin

    s:= s; // avoid compiler hint

    showAll:= not showAll

end;

procedure chChat(var s: shortstring);

begin

    s:= s; // avoid compiler hint

    GameState:= gsChat;

{$IFNDEF SDL2}

    SDL_EnableKeyRepeat(200,45);

{$ENDIF}

    if length(s) = 0 then

        SetLine(InputStr, '', true)

    else

        SetLine(InputStr, '/team ', true)

end;

procedure initModule;

var i: ShortInt;

begin

    RegisterVariable('chatmsg', @chChatMessage, true);

    RegisterVariable('say', @chSay, true);

    RegisterVariable('team', @chTeamSay, true);

    RegisterVariable('history', @chHistory, true );

    RegisterVariable('chat', @chChat, true );

    lastStr:= 0;

    localLastStr:= 0;

    history:= 0;

    visibleCount:= 0;

    showAll:= false;

    ChatReady:= false;

    missedCount:= 0;

    inputStr.Tex := nil;

    for i:= 0 to MaxStrIndex do

        Strs[i].Tex := nil;

end;

procedure freeModule;

var i: ShortInt;

begin

    FreeTexture(InputStr.Tex);

    for i:= 0 to MaxStrIndex do

        FreeTexture(Strs[i].Tex);

end;

end.