public OnPlayerText(playerid, text[])
{
  new playername[MAX_PLAYER_NAME],string[128];
  GetPlayerName(playerid,playername,MAX_PLAYER_NAME));
  format(string,128,"%s shouts: %s",playername,text);
  
  for(new i=0; i<MAX_PLAYERS; i++) {
    if(IsPlayerConnected(i)) {
      if(GetDistanceBetweenPlayers(playerid,i) < 20.0) {
        SendClientMessage(i,COLOR_RED,string);
      }
    }
  }
  return 0;
}