(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 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

 *)

{$INCLUDE "options.inc"}

unit uChat;

interface

procedure initModule;

procedure freeModule;

procedure AddChatString(s: shortstring);

procedure DrawChat;

procedure KeyPressChat(Key: Longword);

var UserNick: shortstring = '';

    ChatReady: boolean;

    showAll: boolean;

implementation

const MaxStrIndex = 27;

type TChatLine = record

        Tex: PTexture;

        Time: Longword;

        Width: LongInt;

        s: shortstring;

        end;

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

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

    missedCount: LongWord;

    lastStr: LongWord;

    visibleCount: LongWord;

    InputStr: TChatLine;

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

const colors: array[#1..#5] of TSDL_Color = (

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

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

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

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

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

    );

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

    // [Light Blue]

    color.r:= $00;

    color.g:= $FF;

    color.b:= $FF;

    color.unused:= $FF;

    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;

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);

    Tint($FF, $FF, $FF, $FF);

    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);

    Tint($FF, $FF, $FF, $FF);

    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 AcceptChatString(s: shortstring);

var i: TWave;

begin

// "Make hedgehog say something"

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

    begin

    if CurrentTeam^.ExtDriven then

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

    else

        ParseCommand('/hogsay '#1 + copy(s, 2, Length(s)-2), true);

    exit

    end;

// 'Make hedgehog think something'

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

    begin

    if CurrentTeam^.ExtDriven then

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

    else

        ParseCommand('/hogsay '#2 + copy(s, 2, Length(s)-2), true);

    exit

    end;

// -Make hedgehog yell something-

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

    begin

    if CurrentTeam^.ExtDriven then

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

    else

        ParseCommand('/hogsay '#3 + copy(s, 2, Length(s)-2), true);

    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

        ParseCommand('/hogsay '#4 + copy(s, 6, Length(s)-5), true);

    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

        ParseCommand('/hogsay '#5 + copy(s, 6, Length(s)-5), true);

    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

        ParseCommand('/hogsay '#6 + copy(s, 6, Length(s)-5), true);

    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;

    end

    else

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

end;

procedure KeyPressChat(Key: Longword);

const firstByteMark: array[1..4] of byte = (0, $C0, $E0, $F0);

var i, btw: integer;

    utf8: shortstring;

begin

if Key <> 0 then

    case Key of

        {Backspace}

        8, 127: if Length(InputStr.s) > 0 then

                begin

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

                SetLine(InputStr, InputStr.s, true)

                end;

        {Esc}

        27: SetLine(InputStr, '', true);

        {Return}

        3, 13, 271: begin

            if Length(InputStr.s) > 0 then

                begin

                AcceptChatString(InputStr.s);

                SetLine(InputStr, '', false)

                end;

            FreezeEnterKey;

            GameState:= gsGame

            end;

    else

    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[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 initModule;

begin

    lastStr:= 0;

    visibleCount:= 0;

    showAll:= false;

    ChatReady:= false;

    missedCount:= 0;

end;

procedure freeModule;

begin

    UserNick:= '';

end;

end.