prev-dialog.inc

#define INVALID_DIALOG_ID (cellmin)

static stock
	gPrev[MAX_PLAYERS] = { INVALID_DIALOG_ID, ... },
	gCur[MAX_PLAYERS] = { INVALID_DIALOG_ID, ... },
	bool:gOPDR = true;

hook function ShowPlayerDialog(playerid, dialogid, style, const caption[], const info[], const button1[], const button2[])
{
	gCur[playerid] = dialogid;
	if (gOPDR)
		gPrev[playerid] = INVALID_DIALOG_ID;
	return continue(playerid, dialogid, style, caption, info, button1, button2);
}

stock GetPreviousDialog(playerid)
{
	return 0 <= playerid < MAX_PLAYERS ? gPrev[playerid] : INVALID_DIALOG_ID;
}

hook public OnDialogResponse(playerid, dialogid, response, listitem, inputtext[])
{
	gOPDR = false;
	gCur[playerid] = INVALID_DIALOG_ID;
	continue(playerid, dialogid, response, listitem, inputtext);
	gPrev[playerid] = (gCur[playerid] == INVALID_DIALOG_ID) ? INVALID_DIALOG_ID : dialogid;
	gOPDR = true;
	return 1;
}

hook public OnPlayerConnect(playerid)
{
	gPrev[playerid] = gCur[playerid] = INVALID_DIALOG_ID;
	continue(playerid);
	return 1;
}