dialog queue

#include <a_samp>

#define MAX_DIALOGS_QUEUED             7
#define MAX_CAPTION_SIZE               30
#define MAX_INFO_SIZE                  1024
#define MAX_BUTTON_TEXT_SIZE           15


enum dInfo
{
    E_ID,
    E_STYLE,
    E_CAPTION[MAX_CAPTION_SIZE],
    E_INFO[MAX_INFO_SIZE],
    E_BUTTON1[MAX_BUTTON_TEXT_SIZE],
    E_BUTTON2[MAX_BUTTON_TEXT_SIZE],
};

new gDialogs[MAX_PLAYERS][MAX_DIALOGS_QUEUED][dInfo], gCurrentDialog[MAX_PLAYERS];

stock QUEUE_ShowPlayerDialog(playerid, dialogid, style, caption[MAX_CAPTION_SIZE], info[MAX_INFO_SIZE], button1[MAX_BUTTON_TEXT_SIZE], button2[MAX_BUTTON_TEXT_SIZE])
{
    for(new i = 0; i < MAX_DIALOGS_QUEUED; i++)
    {
        if(isnull(gDialogs[playerid][i][E_CAPTION]) && isnull(gDialogs[playerid][i][E_INFO]))
        {
            gDialogs[playerid][i][E_ID] = dialogid;
            gDialogs[playerid][i][E_STYLE] = style;
            strcat(gDialogs[playerid][i][E_CAPTION], caption);
            strcat(gDialogs[playerid][i][E_INFO], info);
            strcat(gDialogs[playerid][i][E_BUTTON1], button1);
            strcat(gDialogs[playerid][i][E_BUTTON2], button2);
            gCurrentDialog[playerid]++;
            return ShowPlayerDialog(playerid, dialogid, style, caption, info, button1, button2);
        }
    }
    return 0;
}

public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
    if(!response)
    {
        gCurrentDialog[playerid]--;
        ShowPlayerDialog(playerid, gDialogs[playerid][gCurrentDialog[playerid]][E_ID], gDialogs[playerid][gCurrentDialog[playerid]][E_STYLE], gDialogs[playerid][gCurrentDialog[playerid]][E_CAPTION], gDialogs[playerid][gCurrentDialog[playerid]][E_INFO], gDialogs[playerid][gCurrentDialog[playerid]][E_BUTTON1], gDialogs[playerid][gCurrentDialog[playerid]][E_BUTTON2]);
        gDialogs[playerid][gCurrentDialog[playerid]][E_ID] = -1;
        gDialogs[playerid][gCurrentDialog[playerid]][E_STYLE] = -1;
        gDialogs[playerid][gCurrentDialog[playerid]][E_CAPTION] = EOS;
        gDialogs[playerid][gCurrentDialog[playerid]][E_INFO] = EOS;
        gDialogs[playerid][gCurrentDialog[playerid]][E_BUTTON1] = EOS;
        gDialogs[playerid][gCurrentDialog[playerid]][E_BUTTON2] = EOS;
        return 1;
    }
    return 0;
}


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

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


#if defined _ALS_ShowPlayerDialog
    #undef ShowPlayerDialog
#else
    #define                            _ALS_ShowPlayerDialog
#endif

#define ShowPlayerDialog               QUEUE_ShowPlayerDialog