Mine

	if (!strcmp(cmd, "/startdrift", true))
	{
		new tmp[256];
		tmp = strtok(cmdtext, Index);
		for (new i=0; i<MAX_DRIFTS; i++) if (IsDriftOn[i]) return SendClientMessage(playerid, COLOR_RED, "ERROR: There is already a drift on.");
		if (!strlen(tmp)) return SendClientMessage(playerid, COLOR_RED, "USAGE: /startdrift <driftid>");
		if (!IsNumeric(tmp)) return SendClientMessage(playerid, COLOR_RED, "ERROR: Drift ID must be a number.");
		if (strval(tmp) > MAX_DRIFTS) return SendClientMessage(playerid, COLOR_RED, "ERROR: This drift does not exists.");
		CurrentDrift = strval(tmp);
		for (new i=0; i<MAX_PLAYERS; i++) {
			if (IsPlayerConnected(i)) {
				IsDriftOn[CurrentDrift] = true;
				Winner[CurrentDrift] = 0;
				DisablePlayerCheckpoint(i);
				JoinedDrift[i][CurrentDrift] = 0;
				CurrentCheckpoint[i] = 0;
				InDrift[i][CurrentDrift] = 0;
			}
		}
		SendClientMessageToAll(COLOR_GREEN, "A drift has started! Type /joindrift to join.");
		return 1;
	}