SE - Refinery Balancer

const bool REMOVE_STONE = false;

VRage.Game.ModAPI.Ingame.IMyInventory getStoneStorage() {
    List<IMyTerminalBlock> blocks = new List<IMyTerminalBlock>();
    GridTerminalSystem.SearchBlocksOfName("Stone", blocks);

    for ( int i = 0; i < blocks.Count; i++ ) {
        if ( blocks[i] is IMyCargoContainer ) {
            VRage.Game.ModAPI.Ingame.IMyInventory inventory = blocks[i].GetInventory(0);
            if ( !inventory.IsFull ) {
                return inventory;
            }
        }



    }
    return null;

}


class myRefine
{
    public IMyRefinery refinery;
    public myRefine(IMyRefinery r)
    {
        refinery = r;
    }

    public double getVolume()
    {
        VRage.Game.ModAPI.Ingame.IMyInventory inventory;
        inventory = refinery.GetInventory(0);
        double total = 0.0;
        List<VRage.Game.ModAPI.Ingame.IMyInventoryItem> items = new List<VRage.Game.ModAPI.Ingame.IMyInventoryItem>();
        items = inventory.GetItems();
        for ( int i = 0; i < items.Count; i++ ) {
            VRage.Game.ModAPI.Ingame.IMyInventoryItem item = items[i];
            //parts.increaseCount(item.Content.SubtypeName, (int)item.Amount);
            total += (double)item.Amount;
        }
        return total;
    }
    public void GrabFromNeighbor(myRefine neighbor, double amount)
    {
        if ( amount == 0 ) { return; }
        VRage.Game.ModAPI.Ingame.IMyInventory sourceInv;
        VRage.Game.ModAPI.Ingame.IMyInventory targetInv;
        if ( amount > 0 ) {
            sourceInv = neighbor.refinery.GetInventory(0);
            targetInv = refinery.GetInventory(0);
        } else {
            targetInv = neighbor.refinery.GetInventory(0);
            sourceInv = refinery.GetInventory(0);
        }
        int index;
        amount = Math.Abs(amount);
        if ( amount > 0 ) {
            index = sourceInv.GetItems().Count-1;
            targetInv.TransferItemFrom(sourceInv,index,null,null,(VRage.MyFixedPoint)amount);
        }

    }

    public int RemoveStone(VRage.Game.ModAPI.Ingame.IMyInventory storageInv)
    {
        if ( storageInv == null ) { return 0; }
        VRage.Game.ModAPI.Ingame.IMyInventory inventory = refinery.GetInventory(0);
        List<VRage.Game.ModAPI.Ingame.IMyInventoryItem> items = inventory.GetItems();
        int stoneRemoved = 0;
        for ( int i = 0; i < items.Count; i++ ) {
            VRage.Game.ModAPI.Ingame.IMyInventoryItem item = items[i];
            if ( item.Content.SubtypeName == "Stone" )
            {
                //Echo("Attempting to move " + item.Amount);
                stoneRemoved += (int)item.Amount;
                storageInv.TransferItemFrom(inventory,i);
            }
        }
        return stoneRemoved;
    }

    public void Balance(List<myRefine> refines,double average, int i)
    {
        int tRefines = refines.Count;
        double myVol = getVolume();

        double margin = average * 0.05;
        if ( myVol > average - margin && myVol < average + margin ) { return; }
        double neededAmount = average - myVol;

        myRefine neighbor = refines[i+1];
        this.GrabFromNeighbor(neighbor,neededAmount);

    }

}

void Main(string argument)
{
    List<IMyTerminalBlock> refineries = new List<IMyTerminalBlock>();
    GridTerminalSystem.GetBlocksOfType<IMyRefinery>(refineries);
    if ( refineries == null || refineries.Count < 1 )
    {
        Echo("No refineries found.");
        return;
    }

    List<myRefine> myRefines = new List<myRefine>();
    for ( int i = 0; i < refineries.Count; i++ )
    {
        myRefines.Add(new myRefine((IMyRefinery)refineries[i]));
    }

    if ( REMOVE_STONE  )
    {
        VRage.Game.ModAPI.Ingame.IMyInventory storage = getStoneStorage();
        Echo("Removing Stone..");

        for ( int i = 0; i < myRefines.Count && (storage != null) ; i++ )
        {
            //Echo(i.ToString());
        //  Echo("Attempting to remove " + myRefines[i].RemoveStone(storage));
            myRefines[i].RemoveStone(storage);
            if ( storage.IsFull ) { storage = getStoneStorage(); }
        }
    }


    double total = 0.0;
    for ( int i = 0; i < myRefines.Count; i++ )
    {
        total += myRefines[i].getVolume();
    }
    double average = total / myRefines.Count;

    for ( int i = 0; i < myRefines.Count - 1; i++ )
    {
        myRefines[i].Balance(myRefines,average,i);
    }

}