[whando]

When I use /report *reported playerid* *reason* I can insert whatever I want at the playerid, how could I get it that I can only enter a valid player ID/name? And if someone isn't logged in it returns blabla player is not logged in?

Код:

	if(strcmp(cmd, "/report", true) == 0)
	{
	    if(IsPlayerConnected(playerid))
	    {
	        if(JustReported[playerid] == 1)
	        {
	            SendClientMessage(playerid, COLOR_GREY, "Wait 20 seconds after sending a next /report ! ");
	            return 1;
	        }
			GetPlayerName(giveplayerid, giveplayer, sizeof(giveplayer));
	        GetPlayerName(playerid, sendername, sizeof(sendername));
			new length = strlen(cmdtext);
			while ((idx < length) && (cmdtext[idx] <= ' '))
			{
				idx++;
			}
			new giveplayerid;
			giveplayerid = ReturnUser(tmp);
			if(IsPlayerNPC(giveplayerid)) return 1;
			new offset = idx;
			new result[128];
			while ((idx < length) && ((idx - offset) < (sizeof(result) - 1)))
			{
				result[idx - offset] = cmdtext[idx];
				idx++;
			}
			result[idx - offset] = EOS;
			if(!strlen(result))
			{
				SendClientMessage(playerid, COLOR_WHITE, "USAGE: /report [player] [reason]");
				return 1;
			}
			if(PlayerInfo[playerid][pReportMuted] == 1)
			{
			    return SendClientMessage(playerid, COLOR_RED, "You are muted from sending any /reports!");
			}
			JustReported[playerid] = 1;
			SetTimerEx("ReportReset", 20000, false, "i", playerid);
			format(string, sizeof(string), "%s reporting %s: %s", RemoveUnderScore(playerid), RPN(giveplayerid), (result));
			ABroadCast(COLOR_RED, string, 1);
			SendClientMessage(playerid, COLOR_YELLOW, "Your report was succesfully sent.");
			Reported[playerid] = 1;
		}
	    return 1;
	}