easyDialog.inc

/*
    easyDialog.inc - Dialogs made easier!

    With this useful include, scripters can easily create
    dialogs and show them to players.

    This include will prevent dialog spoofing, ID collision
    and a lot more.

    Created by Emmet on Friday, January 24, 2014.
*/

#if !defined isnull
    #define isnull(%1) \
        ((!(%1[0])) || (((%1[0]) == '\1') && (!(%1[1]))))
#endif

#define Dialog:%0(%1) \
    forward dialog_%0(%1); public dialog_%0(%1)

#define Dialog_Show(%0,%1, \
    Dialog_Open(%0, #%1,

#define Dialog_Opened(%0) \
    (CallRemoteFunction("Dialog_IsOpened", "i", (%0)))

static
    s_DialogName[MAX_PLAYERS][32 char],
    s_DialogOpened[MAX_PLAYERS]
;

forward OnDialogPerformed(playerid, dialog[], response, success);

forward @dialog_format(); @dialog_format() {
    format("", 0, "");
}

forward Dialog_IsOpened(playerid);
public Dialog_IsOpened(playerid)
{
    return (s_DialogOpened[playerid]);
}

stock Dialog_Close(playerid)
{
    s_DialogName[playerid]{0} = 0;
    s_DialogOpened[playerid] = 0;

    return ShowPlayerDialog(playerid, -1, DIALOG_STYLE_MSGBOX, " ", " ", " ", "");
}

stock Dialog_Open(playerid, function[], style, caption[], info[], button1[], button2[], {Float,_}:...)
{
    static
        string[4096],
        args
    ;

    if (!strlen(info))
    {
        return 0;
    }
    if ((args = numargs()) > 7)
    {
        while (--args >= 7)
        {
            #emit LCTRL 5
            #emit LOAD.alt args
            #emit SHL.C.alt 2
            #emit ADD.C 12
            #emit ADD
            #emit LOAD.I
            #emit PUSH.pri
        }
        #emit PUSH.S info
        #emit PUSH.C 4096
        #emit PUSH.C string

        #emit LOAD.S.pri 8
        #emit CONST.alt 16
        #emit SUB
        #emit PUSH.pri

        #emit SYSREQ.C format
        #emit LCTRL 5
        #emit SCTRL 4

        ShowPlayerDialog(playerid, 32700, style, caption, string, button1, button2);
    }
    else
    {
        ShowPlayerDialog(playerid, 32700, style, caption, info, button1, button2);
    }
    s_DialogOpened[playerid] = 1;

    strpack(s_DialogName[playerid], function, 32 char);

    return 1;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    static
        s_Public = cellmax;

    if (s_Public == cellmax)
    {
        s_Public = funcidx("OnDialogPerformed");
    }

    // Sanitize inputs.
    for (new i = 0, l = strlen(inputtext); i < l; i ++)
    {
        if (inputtext[i] == '%')
        {
            inputtext[i] = '#';
        }
    }
    if (dialogid == 32700 && strlen(s_DialogName[playerid]) > 0)
    {
        new
            string[40];

        strcat(string, "dialog_");
        strcat(string, s_DialogName[playerid]);

        Dialog_Close(playerid);

        if ((s_Public == -1) || (CallLocalFunction("OnDialogPerformed", "dsdd", playerid, string[7], response, funcidx(string) != -1)))
        {
            CallLocalFunction(string, "ddds", playerid, response, listitem, (!inputtext[0]) ? ("\1") : (inputtext));
        }
    }
    #if defined DR_OnDialogResponse
        return DR_OnDialogResponse(playerid, dialogid, response, listitem, inputtext);
    #else
        return 0;
    #endif
}

#if defined _ALS_OnDialogResponse
    #undef OnDialogResponse
#else
    #define _ALS_OnDialogResponse
#endif

#define OnDialogResponse DR_OnDialogResponse

#if defined DR_OnDialogResponse
    forward DR_OnDialogResponse(playerid, dialogid, response, listitem, inputtext[]);
#endif