Questions on Computercraft

[CorianWornen]

I play on a tekkit server that still holds Computercraft and I have a question in regards to it. Is there a page anywere that has a reliable list of lua commands, as well as minecraft specific commands including what they do. The reason I ask is that I want to write (or find) a program for a mining turtle that will flatten land from it's starting position and up (taking and x,y,z input), while avoiding dangerous materials, namely lava. However I can't find the information I need, and my searches for such a program have provided no way to use them. I am not running the server so I can't just install it into the files, so I need something I can just type in.

Either a link, or a code would be greatly appreciated.

[Iscamania]

Start looking at the wiki of Computercraft and ask on their forum about this. They're gonna be a better help (if you lucky) than us here.

[rich1051414]

I wrote a simple program that flattens land. Maybe it will help.

It doesnt detect dangerous blocks but i only use it above water level anyways. It mines a cube and its starting position is the bottom front left corner. You have to modify two variables because i can't be bothered to add an argument handler.

area = 16  --length of sides

height = 30 --how high it needs to go

 

direction = false

 

for x = 1, height do

    for xx = 1, area - 1 do

        for xxx = 1, area do

                repeat

                    turtle.dig()

                until turtle.forward() == true

        end

        if direction == false then

            direction = true

            turtle.turnRight()

            repeat

                turtle.dig()

            until turtle.forward() == true

            turtle.turnRight()

        else

            direction = false

            turtle.turnLeft()

            repeat

                turtle.dig()

            until turtle.forward() == true

            turtle.turnLeft()

        end   

    end

    for xxx = 1, area do

        repeat

            turtle.dig()

        until turtle.forward() == true

    end

    if x < height then

        repeat

            turtle.digUp()

        until turtle.up() == true

        turtle.turnRight()

        turtle.turnRight()

    else

        turtle.turnRight()

        turtle.turnRight()

    end

end

for a = 1, height do

    turtle.down()    ---return to ground level

end

[rich1051414]

This morning i was asked a few questions so i'm going to update the code to include comments and to allow arguments. It also has a block counter just for curiosity sake. I can add a few lines to detect when it is finished, if you ask. I thought a manual entry for height allowed for more flexible usage tho(like clearing an underground chamber), so i left it out.

when you run the script, use this syntax: turtleFlatten [length] [width] [height]

like this: turtleFlatten 16 8 20

This will mine 16x8x20 blocks.

--TurtleFlatten

--rich1051414

--------------------------------------------------

--Sends turtle out to flatten a plot land

--------------------------------------------------

--Check arguments for correct formatting

local args = { ... }

if #args ~= 3 then --Check if it's not exactly 3 arguments.

shell.run("clear")

print("Invalid number of arguments")

print("turtleflatten [length] [width] [height]")

do return end

end

for i = 1, 3 do --Step through each argument and make sure it is a number greater than 1.

if tonumber(args[i]) < 2 then

shell.run("clear")

print("Invalid arguments")

print("All measurements must be numbers greater than 1")

do return end

end

end

--------------------------------------------------

--commandline arguments [length] [width] [height]

length = tonumber(args[1]) --length of square

width = tonumber(args[2]) --width of square

height = tonumber(args[3]) --how high it needs to go

--------------------------------------------------

--------------------------------------------------

-- Now for the logic

--------------------------------------------------

-- Boolean to remember which way to turn.

direction = false

LayerBlockCount = 0

TotalBlocksBusted = 0

------------------------------------------

-- Nested loops, 1 each for length width and height.

shell.run("clear")

print("Flatten land initialized.\n")

write("Length: ")

write(tostring(length))

write(" Width: ")

write(tostring(width))

write(" Height: ")

write(tostring(height))

print("\n\n\n")

for x = 1, height do

write("Layer ")

write(tostring(x))

write(" started.\n\n")

for xx = 1, width - 1 do

for xxx = 1, length do

--Digs until the turtle can move forward, to deal with gravel and sand.

repeat

if turtle.detect() then

TotalBlocksBusted = TotalBlocksBusted + 1

end

turtle.dig()

until turtle.forward() == true

--------------------------------------------------

end

-- Orientation.

if direction == false then

direction = true

turtle.turnRight()

repeat

if turtle.detect() then

TotalBlocksBusted = TotalBlocksBusted + 1

end

turtle.dig()

until turtle.forward() == true

turtle.turnRight()

else

direction = false

turtle.turnLeft()

repeat

if turtle.detect() then

TotalBlocksBusted = TotalBlocksBusted + 1

end

turtle.dig()

until turtle.forward() == true

turtle.turnLeft()

end

--------------------------------------------------

end

-- Last line finished outside of loop to remove unneeded steps.

for xxx = 1, length do

repeat

if turtle.detect() then

TotalBlocksBusted = TotalBlocksBusted + 1

end

turtle.dig()

until turtle.forward() == true

end

--------------------------------------------------

--Checks if it needs to go up or just turn around for completion.

if x < height then

repeat

if turtle.detectUp() then

TotalBlocksBusted = TotalBlocksBusted + 1

end

turtle.digUp()

until turtle.up() == true

turtle.turnRight()

turtle.turnRight()

else

turtle.turnRight()

turtle.turnRight()

end

--------------------------------------------------

end

print("Job Completed.\n")

--Return turtle to starting point(if all dimensions are even numbers)

print("Returning...\n")

for a = 1, height do

turtle.down()

end

write(tostring(TotalBlocksBusted))

write(" total blocks busted.\n\n")

print("Powering down.\n")

--------------------------------------------------

[warpspeed10]

Thank you for the code sample. I never realized the movement functions returned a Boolean upon success or failure. I'll have to go play with my turtle later to try this out.

[rich1051414]

it wouldn't be entirely necessary, but makes dig loops in case of gravel and sand a couple lines shorter to code. You can also turtle.detect for all directions, but it only returns a Boolean and only detects solid blocks(detects snow even tho it doesnt have to mine snow to move however).

I do not think there is a way to check for fluid blocks at all, but the turtle is immune to lava and water anyways.