SET tanklist to LIST().
SET srblist to LIST().
SET tanknum to 0.
SET srbnum to 0

//Search for fuel tanks and SRBs on SHIP and add to lists.
for i in SHIP:PARTS
{
	//Walk through resources for that part
	for res in i:resources
	{
		if res:name = "LIQUIDFUEL"
		{
			SET child to i.
			//Check to see if it has an engine or fuel line attached
			//We do this so stacked tanks are staged properly,
			//rather than staging as soon as one of them is empty
			for j in child:CHILDREN
			{
				if j:name = "fuelLine" OR j:name = "liquidEngine"
				{
					tanklist:ADD (i).
					break.
				}
			}
		}
		if res:name = "SOLIDFUEL"
		{
			srblist:ADD (i).
			break.
		}

	}
}

//Check tanks to see if empty and stage if needed
WHEN TRUE THEN
{
	if (tanklist:length > 0)
	{
		if tanklist[tanknum]:resources[0]:AMOUNT < 0.01
		{
			PRINT "Staging due to empty fuel tank".
			tanklist:REMOVE(tanknum).
			STAGE.
		}
		if tanknum < (tanklist:length - 1) { set tanknum to tanknum + 1.}
		else
			SET tanknum to 0.
	}

	if (srblist:length > 0)
	{
		if srblist[srbnum]:resources[0]:AMOUNT < 0.01
		{
			PRINT "Staging due to empty SRB".
			srblist:REMOVE(srbnum).
			STAGE.
		}
		if srbnum < (srblist:length  - 1 ){ set srbnum to srbnum + 1.}
		else
			SET srbnum to 0.
	}
	PRESERVE.
}