Automining with custom navigation API issues

your problem seems to be at one of 3 lines, you're assigning xTarget to be a nil value on either line 357, line 366, or line 432.

I shall continue to investigate and report back if I find anything more… hopefully the above will begin pointing you in the direction of your error though.

SIDE NOTE: i do suggest you make use of Vector API, it can help reduce some of your variables.


EDIT: okay so it looks like the problem is in goJob you're assigning xTarget to be the same value as xJob which doesn't exist

--Code cut from drill program


line 95: function getCoords()
line 96:	current = new.vector(navigation.getCurrent())
line 97:	heading = navigation.getCurrentH()
line 98: end


--Code cut from navigation API


function setCurrent(x, y, z, head) --set the current vector and current heading = 0, 1, 2, 3 / S, W, N, E
current = vector.new(x, y, z)   --set the current vector
heading = head  --set the current heading = 0, 1, 2, 3 / S, W, N, E
end
function getCurrent()
return current  --get the current vector
end
function getCurrentH()
	return heading  --get the current heading
end

BlockSmith, on 25 May 2014 - 09:13 AM said:

NEW ERROR: drill:96: attempt to index ? (a nil value)

line 96:	current = new.vector(navigation.getCurrent())

current = new.vector(navigation.getCurrent())

new.vector(navigation.getCurrent())

new.vector()

new.vector

vector.new

function setTarget(t, x, y, z, head)
    rednet.close("right")
    rednet.open("right")
   
    job = {x, y, z, head}
    print("xTarget = "..job[1])
    sleep(10)
    sJob = textutils.serialize(job)
    rednet.send(t, sJob)
   
    rednet.close("right")
   
    CtargetX = x
    CtargetY = y
    CtargetZ = z
   
    getNextJob(x, z)
end

function BOSSsetTarget()
    rednet.close("right")
    rednet.open("right")
    while boss == nil do
	    rednet.broadcast("Need Work")
	    term.clear()
	    term.setCursorPos(1, 1)
	    print("Need Work")
	    boss, tLoc, dist = rednet.receive(10)
	    if boss ~= nil then
		    print("Orders Received...")
		    sendCurrent()
		    print("Sending Position...")
	    end
    end
    location = textutils.unserialize(tLoc)
    targetX = location[1]
    targetY = location[2]
    targetZ = location[3]
    targetHeading = location[4]
    rednet.close("right")
end

function goY(nY)
	term.clear()
	term.setCursorPos(1, 1)
	print(yCurrent) -- This prints 63, the current Y position and is accurate.
	if yCurrent > nY then -- This throws an "attempt to compare __lt on nil and number." error
		while yCurrent ~= nY do
			down()
		end
	elseif yCurrent < nY then  
		term.clear()
		term.setCursorPos(1, 1)
		print(yCurrent)
		while yCurrent ~= nY do
			up()
		end
	end
end

function down()
	refuel()
	while turtle.detectDown() and mine do
		turtle.digDown()
		movement = "Digging Down"
		sendPosition()
		display()
	end
	while not turtle.detectDown() and not turtle.down() do
		movement = "Attacking Down"
		sendPosition()
		display()
		turtle.attackDown()
	end
	movement = "Down"
	yCurrent = yCurrent - 1
	sendPosition()
	display()
end

function GPSsetCurrent()
	print("Getting GPS coordinates")
	isOn()  --Forces modem on if it's off
	local x, y, z = gps.locate()
	isOff()  --Forces modem off if it's on
	setCurrent(x, y, z)  --Sets xCurrent, yCurrent, and zCurrent to x, y, z from gps.
	setHome(x, y, z)  --Sets xHome, yHome, and zHome to x, y, z from gps.
end

BlockSmith, on 03 June 2014 - 09:13 AM said:

Fixed: Pass by copy derp on my part. Silly lua