hedgewars/uChat.pas
author nemo
Wed, 27 Jul 2011 09:20:55 -0400
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permissions -rw-r--r--
this helps a bit
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2011 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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{$INCLUDE "options.inc"}
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unit uChat;
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interface
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procedure initModule;
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procedure freeModule;
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procedure AddChatString(s: shortstring);
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procedure DrawChat;
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procedure KeyPressChat(Key: Longword);
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implementation
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uses SDLh, uKeys, uTypes, uVariables, uCommands, uUtils, uTextures, uRender, uIO;
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const MaxStrIndex = 27;
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type TChatLine = record
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        Tex: PTexture;
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        Time: Longword;
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        Width: LongInt;
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        s: shortstring;
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        end;
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var Strs: array[0 .. MaxStrIndex] of TChatLine;
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    MStrs: array[0 .. MaxStrIndex] of shortstring;
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    missedCount: LongWord;
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    lastStr: LongWord;
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    visibleCount: LongWord;
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    InputStr: TChatLine;
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    InputStrL: array[0..260] of char; // for full str + 4-byte utf-8 char
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    ChatReady: boolean;
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    showAll: boolean;
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const colors: array[#1..#6] of TSDL_Color = (
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    (r:$FF; g:$FF; b:$FF; unused:$FF), // chat message [White]
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    (r:$FF; g:$00; b:$FF; unused:$FF), // action message [Purple]
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    (r:$90; g:$FF; b:$90; unused:$FF), // join/leave message [Lime]
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    (r:$FF; g:$FF; b:$A0; unused:$FF), // team message [Light Yellow]
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    (r:$FF; g:$00; b:$00; unused:$FF), // error messages [Red]
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    (r:$00; g:$FF; b:$FF; unused:$FF)  // input line [Light Blue]
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    );
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procedure SetLine(var cl: TChatLine; str: shortstring; isInput: boolean);
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var strSurface, resSurface: PSDL_Surface;
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    w, h: LongInt;
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    color: TSDL_Color;
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    font: THWFont;
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begin
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if cl.Tex <> nil then
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    FreeTexture(cl.Tex);
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cl.s:= str;
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if isInput then
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begin
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    color:= colors[#6];
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    str:= UserNick + '> ' + str + '_'
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end
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else
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begin
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    color:= colors[str[1]];
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    delete(str, 1, 1)
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end;
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font:= CheckCJKFont(str, fnt16);
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w:= 0; h:= 0; // avoid compiler hints
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TTF_SizeUTF8(Fontz[font].Handle, Str2PChar(str), w, h);
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resSurface:= SDL_CreateRGBSurface(0, toPowerOf2(w), toPowerOf2(h), 32, RMask, GMask, BMask, AMask);
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strSurface:= TTF_RenderUTF8_Solid(Fontz[font].Handle, Str2PChar(str), color);
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cl.Width:= w + 4;
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SDL_UpperBlit(strSurface, nil, resSurface, nil);
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SDL_FreeSurface(strSurface);
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cl.Time:= RealTicks + 12500;
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cl.Tex:= Surface2Tex(resSurface, false);
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SDL_FreeSurface(resSurface)
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end;
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procedure AddChatString(s: shortstring);
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begin
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if not ChatReady then
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    begin
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    if MissedCount < MaxStrIndex - 1 then
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        MStrs[MissedCount]:= s
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    else if MissedCount < MaxStrIndex then
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        MStrs[MissedCount]:= #5 + '[...]';
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    inc(MissedCount);
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    exit
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    end;
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lastStr:= (lastStr + 1) mod (MaxStrIndex + 1);
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SetLine(Strs[lastStr], s, false);
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inc(visibleCount)
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end;
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procedure DrawChat;
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var i, t, cnt: Longword;
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    r: TSDL_Rect;
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begin
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ChatReady:= true; // maybe move to somewhere else?
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if MissedCount <> 0 then // there are chat strings we missed, so print them now
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    begin
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    for i:= 0 to MissedCount - 1 do
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        AddChatString(MStrs[i]);
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    MissedCount:= 0;
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    end;
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cnt:= 0;
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t:= 0;
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i:= lastStr;
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r.x:= 6 - cScreenWidth div 2;
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r.y:= (visibleCount - t) * 16 + 10;
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r.h:= 16;
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if (GameState = gsChat)
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    and (InputStr.Tex <> nil) then
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    begin
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    r.w:= InputStr.Width;
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    DrawFillRect(r);
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    Tint($00, $00, $00, $80);
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    DrawTexture(9 - cScreenWidth div 2, visibleCount * 16 + 11, InputStr.Tex);
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    Tint($FF, $FF, $FF, $FF);
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    DrawTexture(8 - cScreenWidth div 2, visibleCount * 16 + 10, InputStr.Tex);
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    end;
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dec(r.y, 16);
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while (((t < 7) and (Strs[i].Time > RealTicks)) or
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       ((t < MaxStrIndex) and showAll)) and
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      (Strs[i].Tex <> nil) do
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    begin
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    r.w:= Strs[i].Width;
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    DrawFillRect(r);
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    Tint($00, $00, $00, $80);
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    DrawTexture(9 - cScreenWidth div 2, (visibleCount - t) * 16 - 5, Strs[i].Tex);
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    Tint($FF, $FF, $FF, $FF);
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    DrawTexture(8 - cScreenWidth div 2, (visibleCount - t) * 16 - 6, Strs[i].Tex);
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    dec(r.y, 16);
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    if i = 0 then i:= MaxStrIndex else dec(i);
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    inc(cnt);
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    inc(t)
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    end;
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visibleCount:= cnt;
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end;
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procedure SendHogSpeech(s: shortstring);
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begin
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SendIPC('h' + s);
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ParseCommand('/hogsay '+s, true)
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end;
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procedure AcceptChatString(s: shortstring);
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var i: TWave;
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    c, t: LongInt;
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    x: byte;
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begin
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t:= LocalTeam;
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x:= 0;
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if (s[1] = '"') and (s[Length(s)] = '"') then x:= 1
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else if (s[1] = '''') and (s[Length(s)] = '''') then x:= 2
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else if (s[1] = '-') and (s[Length(s)] = '-') then x:= 3;
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if not CurrentTeam^.ExtDriven and (x <> 0) then
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    for c:= 0 to Pred(TeamsCount) do
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        if (TeamsArray[c] = CurrentTeam) then t:= c;
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if x <> 0 then
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    begin
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    if t = -1 then
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        ParseCommand('/say ' + copy(s, 2, Length(s)-2), true)
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    else
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        SendHogSpeech(char(x) + char(t) + copy(s, 2, Length(s)-2));
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    exit
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    end;
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// These 3 are same as above, only are to make the hedgehog say it on next attack
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if (s[1] = '/') and (copy(s, 1, 5) = '/hsa ') then
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    begin
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    if CurrentTeam^.ExtDriven then
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        ParseCommand('/say ' + copy(s, 6, Length(s)-5), true)
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    else
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        SendHogSpeech(#4 + copy(s, 6, Length(s)-5));
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    exit
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    end;
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if (s[1] = '/') and (copy(s, 1, 5) = '/hta ') then
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    begin
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    if CurrentTeam^.ExtDriven then
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        ParseCommand('/say ' + copy(s, 6, Length(s)-5), true)
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    else
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        SendHogSpeech(#5 + copy(s, 6, Length(s)-5));
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    exit
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    end;
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if (s[1] = '/') and (copy(s, 1, 5) = '/hya ') then
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    begin
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    if CurrentTeam^.ExtDriven then
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        ParseCommand('/say ' + copy(s, 6, Length(s)-5), true)
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    else
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        SendHogSpeech(#6 + copy(s, 6, Length(s)-5));
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    exit
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    end;
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   227
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if (copy(s, 1, 6) = '/team ') and (length(s) > 6) then
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    begin
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    ParseCommand(s, true);
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    exit
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   232
    end;
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if (s[1] = '/') and (copy(s, 1, 4) <> '/me ') then
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   234
    begin
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    if CurrentTeam^.ExtDriven or (CurrentTeam^.Hedgehogs[0].BotLevel <> 0) then
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        exit;
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    for i:= Low(TWave) to High(TWave) do
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        if (s = Wavez[i].cmd) then
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            begin
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            ParseCommand('/taunt ' + char(i), true);
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            exit
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            end;
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   244
    end
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    else
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        ParseCommand('/say ' + s, true);
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   247
end;
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   248
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procedure KeyPressChat(Key: Longword);
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   250
const firstByteMark: array[1..4] of byte = (0, $C0, $E0, $F0);
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var i, btw: integer;
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    utf8: shortstring;
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begin
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   254
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if Key <> 0 then
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   256
    case Key of
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        {Backspace}
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        8, 127: if Length(InputStr.s) > 0 then
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                begin
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                InputStr.s[0]:= InputStrL[byte(InputStr.s[0])];
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                SetLine(InputStr, InputStr.s, true)
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   262
                end;
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   263
        {Esc}
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   264
        27: if Length(InputStr.s) > 0 then SetLine(InputStr, '', true)
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   265
            else
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   266
                begin
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   267
                FreezeEnterKey;
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                SDL_EnableKeyRepeat(0,0);
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                GameState:= gsGame;
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   270
                end;
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        {Return}
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        3, 13, 271: begin
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            if Length(InputStr.s) > 0 then
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   274
                begin
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                AcceptChatString(InputStr.s);
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                SetLine(InputStr, '', false)
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   277
                end;
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            FreezeEnterKey;
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ce1a761d3c1e enable keyrepeat while chatting so you can keep backspace pressed to delete a line (fix issue 111)
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   279
            SDL_EnableKeyRepeat(0,0);
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   280
            GameState:= gsGame;
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   281
            end;
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   282
    else
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    if (Key < $80) then btw:= 1
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   284
    else if (Key < $800) then btw:= 2
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   285
    else if (Key < $10000) then btw:= 3
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   286
    else btw:= 4;
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   287
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   288
    utf8:= '';
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42c5cc87cbd1 Preparing to have gsChat gamestate
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   289
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   290
    for i:= btw downto 2 do
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   291
        begin
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   292
        utf8:= char((Key or $80) and $BF) + utf8;
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   293
        Key:= Key shr 6
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   294
        end;
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   295
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   296
    utf8:= char(Key or firstByteMark[btw]) + utf8;
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   297
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   298
    if byte(InputStr.s[0]) + btw > 240 then exit;
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51c11e77408a Fix chat bugs leading to serialized data corruption
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   299
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    InputStrL[byte(InputStr.s[0]) + btw]:= InputStr.s[0];
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    SetLine(InputStr, InputStr.s + utf8, true)
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   302
    end
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   303
end;
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   304
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6bae4e9461aa Remove some more circular dependencies
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   305
procedure chChatMessage(var s: shortstring);
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   306
begin
6bae4e9461aa Remove some more circular dependencies
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   307
    AddChatString(s)
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   308
end;
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   309
4402
54a78ec6aac4 Remove uChat dependency from uCommands
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   310
procedure chSay(var s: shortstring);
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   311
begin
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   312
    SendIPC('s' + s);
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   313
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   314
    if copy(s, 1, 4) = '/me ' then
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   315
        s:= #2'* ' + UserNick + ' ' + copy(s, 5, Length(s) - 4)
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diff changeset
   316
    else
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   317
        s:= #1 + UserNick + ': ' + s;
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   318
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   319
    AddChatString(s)
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   320
end;
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   321
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   322
procedure chTeamSay(var s: shortstring);
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begin
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    SendIPC('b' + s);
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    s:= #4 + '[Team] ' + UserNick + ': ' + s;
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    AddChatString(s)
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end;
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procedure chHistory(var s: shortstring);
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begin
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    s:= s; // avoid compiler hint
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    uChat.showAll:= not uChat.showAll
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end;
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procedure chChat(var s: shortstring);
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begin
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    s:= s; // avoid compiler hint
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    GameState:= gsChat;
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    SDL_EnableKeyRepeat(200,45);
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    if length(s) = 0 then
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        SetLine(InputStr, '', true)
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    else
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        begin
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        // err, does anyone have any documentation on this sequence?
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        KeyPressChat(27);
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        KeyPressChat(47);
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        KeyPressChat(116);
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        KeyPressChat(101);
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        KeyPressChat(97);
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        KeyPressChat(109);
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        KeyPressChat(32)
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        end
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end;
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procedure initModule;
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var i: ShortInt;
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begin
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    RegisterVariable('chatmsg', vtCommand, @chChatMessage, true);
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    RegisterVariable('say', vtCommand, @chSay, true);
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    RegisterVariable('team', vtCommand, @chTeamSay, true);
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    RegisterVariable('history', vtCommand, @chHistory, true );
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    RegisterVariable('chat', vtCommand, @chChat, true );
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    lastStr:= 0;
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    visibleCount:= 0;
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    showAll:= false;
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    ChatReady:= false;
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    missedCount:= 0;
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    inputStr.Tex := nil;
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    for i:= 0 to MaxStrIndex do
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    begin
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        Strs[i].Tex := nil;
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    end;
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end;
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procedure freeModule;
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var i: ShortInt;
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begin
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    FreeTexture(InputStr.Tex);
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    for i:= 0 to MaxStrIndex do
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    begin
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        FreeTexture(Strs[i].Tex);
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    end;
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end;
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end.