NameCompletion

// console.cpp: the console buffer, its display, and command line control

int completionChosen = 1, lastpoint = -1;  // added: for the name completion.
string StringToFind, leftText, rightText;  // variables to save the text on the chat console
const char *competionString = NULL; // pointer to the player name.

void resetnameCompletion() { if(!completionChosen) completionChosen = 1; competionString = NULL; }

/*
 *  some functions before our code. ^.^
 *
 */

void consolekey(int code, bool isdown, int cooked)
{
    #ifdef __APPLE__
        #define MOD_KEYS (KMOD_LMETA|KMOD_RMETA)
    #else
        #define MOD_KEYS (KMOD_LCTRL|KMOD_RCTRL)
    #endif

    if(isdown)
    {
        switch(code)
        {
            case SDLK_RETURN:
            case SDLK_KP_ENTER:
                break;

            case SDLK_HOME:
                //if(strlen(commandbuf)) commandpos = 0;
                if(strlen(commandbuf)) { commandpos = 0; resetnameCompletion();} // added: to reset the name completion.
                break;

            case SDLK_END:
                commandpos = -1;
                if(strlen(commandbuf)) resetnameCompletion();  // added: to reset the name completion.
                break;

            case SDLK_DELETE:
            {
                int len = (int)strlen(commandbuf);
                if(commandpos<0) break;
                memmove(&commandbuf[commandpos], &commandbuf[commandpos+1], len - commandpos);
                resetcomplete();
                resetnameCompletion();  // added: to reset the name completion.
                if(commandpos>=len-1) commandpos = -1;
                break;
            }

            case SDLK_BACKSPACE:
            {
                int len = (int)strlen(commandbuf), i = commandpos>=0 ? commandpos : len;
                if(i<1) break;
                memmove(&commandbuf[i-1], &commandbuf[i], len - i + 1);
                resetcomplete();
                resetnameCompletion(); // added: to reset the name completion.
                if(commandpos>0) commandpos--;
                else if(!commandpos && len<=1) commandpos = -1;
                break;
            }

            case SDLK_LEFT:
                if(commandpos>0) commandpos--;
                else if(commandpos<0) commandpos = (int)strlen(commandbuf)-1;
                resetnameCompletion();   // added: to reset the name completion.
                break;

            case SDLK_RIGHT:
                if(commandpos>=0 && ++commandpos>=(int)strlen(commandbuf)) commandpos = -1;
                resetnameCompletion();
                break;

            case SDLK_UP:
                if(histpos > history.length()) histpos = history.length();
                if(histpos > 0) history[--histpos]->restore();
                resetnameCompletion();  // added: to reset the name completion.
                break;

            case SDLK_DOWN:
                if(histpos + 1 < history.length()) history[++histpos]->restore();
                resetnameCompletion();  // added: to reset the name completion.
                break;

            case SDLK_TAB:
                if(SDL_GetModState()&KMOD_SHIFT) {  // changed: now the command complete works with SHIFT + TAB
                    if(commandflags&CF_COMPLETE)
                    {
                        complete(commandbuf, commandflags&CF_EXECUTE ? "/" : NULL);
                        if(commandpos>=0 && commandpos>=(int)strlen(commandbuf)) commandpos = -1;
                    }
                }
                /*
                 * added, for the name completion.
                 */
                else if(!mainmenu)  // first, check if we are connected. this is not a good way to know that but
                {                   // i cant use game:connect >.<' (well, i can but i dont wanted). ^.^

                    if(completionChosen)
                    {
                        int len = (int)strlen(commandbuf);  // size of the text in the chat (commandbuf): len.
                        const char *pTexto = "";

                        StringToFind[0] = leftText[0] = rightText[0] = '\0';

                        if(len) // There si text (string) to find.
                        {
                            int leftTextsize = 0, StringSize = 0, leftOffset = 0;
                            //  cursor position on chat/command/team console (a copy of commandpos).
                            int posCursor = commandpos<0 ? len : commandpos;

                            // pointer to move through the text. This would be unnecessary.
                            pTexto = &commandbuf[posCursor];

                            // find the begining of the word to find = lengh of the text at left of our string to find (if exist)
                            while((leftOffset<posCursor) && !isspace(*(pTexto-1))) {
                                ++leftOffset; --pTexto;
                            }
                            // size (end position) of the text at the left of the string to find.
                            leftTextsize = posCursor - leftOffset;

                            // save the text at left to the string to find (if exist)
                            copystring(leftText, commandbuf, leftTextsize + 1);

                            // put the cursor in the start of the string to find.
                            posCursor = leftTextsize;

                            // get the size of the string to find: Stringsize
                            while((posCursor<len) && !isspace(*pTexto)) {
                                ++StringSize; ++posCursor; ++pTexto;
                            }
                            // save the string selected on StringToFind.
                            copystring(StringToFind, &commandbuf[leftTextsize], StringSize +1);

                            // save the text at the right to the string to find (if exist).
                            copystring(rightText, &commandbuf[leftTextsize+StringSize], (len-(leftTextsize+StringSize))+1);
                        }
                        completionChosen = 0;   // reset completion var
                        //thereismatch = 0;

                        // start from the begining of the layer list.
                        if(lastpoint>=0) lastpoint = -1;
                    }

                    // get the name (if exist) who match with our string to fine.
                    // or if there is no string, get the names one by one.
                    competionString = game::findPlayer(lastpoint, StringToFind);

                    if(competionString)
                    {
                        // update the position of the cursor.
                        int newposCursor = (int)strlen(leftText) + (int)strlen(competionString);
                        char separator[3] = "";
                        string auxbuffer;

                        // add (in auxbuffer) the text at the left, if exist.
                        copystring(auxbuffer, leftText);

                        // add the name.
                        concatstring(auxbuffer, competionString);

                        // set the separator, if is necesary.
                        if(!leftText[0])
                            copystring(separator, !rightText[0] ? ": " : ":", !rightText[0] ? 3 : 2);

                        // add separator.
                        concatstring(auxbuffer, separator);

                        // update the position of the cursor (when separator is added).
                        newposCursor += (int)strlen(separator);

                        // add the text at the right.
                        concatstring(auxbuffer,rightText);

                        // update the text in the chat: commandbuf.
                        copystring(commandbuf, auxbuffer);

                        // and... update the posición of the cursor.
                        commandpos = newposCursor;
                    }
                }
                break;

            case SDLK_v:
                if(SDL_GetModState()&MOD_KEYS) { pasteconsole(); return; }
                // fall through

            default:
                resetcomplete();
                resetnameCompletion();  // added: to reset the name completion.
                if(cooked)
                {
                    size_t len = (int)strlen(commandbuf);
                    if(len+1<sizeof(commandbuf))
                    {
                        if(commandpos<0) commandbuf[len] = cooked;
                        else
                        {
                            memmove(&commandbuf[commandpos+1], &commandbuf[commandpos], len - commandpos);
                            commandbuf[commandpos++] = cooked;
                        }
                        commandbuf[len+1] = '\0';
                    }
                }
                break;
        }
    }
    else
    {
        if(code==SDLK_RETURN || code==SDLK_KP_ENTER)
        {
            hline *h = NULL;
            if(commandbuf[0])
            {
                if(history.empty() || history.last()->shouldsave())
                {
                    if(maxhistory && history.length() >= maxhistory)
                    {
                        loopi(history.length()-maxhistory+1) delete history[i];
                        history.remove(0, history.length()-maxhistory+1);
                    }
                    history.add(h = new hline)->save();
                }
                else h = history.last();
            }
            histpos = history.length();
            inputcommand(NULL);
            resetnameCompletion();  // added: to reset the name completion.
            if(h) h->run();
        }
        else if(code==SDLK_ESCAPE)
        {
            histpos = history.length();
            inputcommand(NULL);
            resetnameCompletion(); // // added: to reset the name completion.
        }
    }
}