[xCoder]

Код:

public OnPlayerCommandText(playerid, cmdtext[])
{
	if (strcmp(cmd, "/buygrenades", true) == 0)
	{
	new
	tmp[20],
	amount;
	tmp = strtok(cmdtext, index);
	if (strlen(tmp))
	{
	amount = strval(tmp);
	if (IsPlayerConnected(amount))
	{
	GivePlayerWeapon(playerid,16,amount");
	GivePlayerMoney(playerid,-amount*1000)
	}
	else
	{
	SendClientMessage(playerid, 0xFF0000AA, "Amount is too hight");
	}
	}
	else
	{
	SendClientMessage(playerid, 0xFF0000AA, "Usage: \"/buygrenades <amount>\"");
	}
	return 1;
	}
	return 0;
}

Not tested...