forward DeleteText();
new Text:draw[MAX_PLAYERS];
new ptext[MAX_PLAYERS];

public OnGameModeInit()
{
SetTimer("DeleteText",1000,1);
}
public OnPlayerConnect(playerid)
{
draw[playerid]=TextDrawCreate(...);
ptext[playerid]=20;//время показывания текстдрава
TextDrawHideForPlayer(playerid,draw[playerid]);
}
public  DeleteText()
{
for(new i=0;<GetMaxPlayers();i++)
{
if(IsPlayerConnected(i)
{
if(pText[i]==0)
{
TextDrawHideForPlayer(i,draw[i]);
TextDrawDestroy(draw[i]);
}
pText[i]--;
}

}
}