online_minetrip

function receive()
    while(true) do
    local id, msg = rednet.receive()
    print(msg)
    end
end

function main()
local msg = abc
startx,starty,startz=gps.locate()
x,y,z = gps.locate()

term.clear()
term.setCursorPos(1,1)
rednet.open("right")
rednet.broadcast("Robo01 connected")
print("please open 'online' on your other pocket device.")
print("press enter to begin")
io.read()

function sendcoords()
    x,y,z = gps.locate()
    rednet.broadcast("Robo01: "..x.. " " ..y.. " " ..z)
end

function home()
    rednet.broadcast("Robo01 returning home")
    endx,endy,endz = gps.locate(10)
    end1 = true
    while(end1)
    do
        turtle.turnLeft()
        turtle.dig()
        turtle.forward()
        x,y,z = gps.locate()
        sendcoords()

        disendx = startx - endx
        if disendx < 0
        then
            disendx = disendx * -1
        end

        discurx = startx - x
        if discurx < 0
        then
            discurx = discurx * -1
        end

        if disendx > discurx
        then
            end1 = false
        end
        turtle.back()
    end

    end2 = true
    while(end2)
    do
        turtle.dig()
        turtle.forward()
        x,y,z = gps.locate()
        sendcoords()

        discurx = startx - x
        if discurx < 0
        then
            discurx = discurx * -1
        end

        if discurx == 0
        then
            end2 = false
        end
    end

    end3 = true
    while(end3)
    do
        turtle.turnLeft()
        turtle.dig()
        turtle.forward()
        x,y,z = gps.locate()
        sendcoords()

        disendz = startz - endz
        if disendz < 0
        then
            disendz = disendz * -1
        end

        discurz = startz - z
        if discurz < 0
        then
            discurz = discurz * -1
        end

        if disendz > discurz
        then
            end3 = false
        end
        turtle.back()
    end

    end4 = true
    while(end4)
    do
        turtle.dig()
        turtle.forward()
        x,y,z = gps.locate()
        sendcoords()

        discurz = startz - z
        if discurz < 0
        then
            discurz = discurz * -1
        end

        if discurz == 0
        then
            end4 = false
        end
    end

    end5 = true
    while(end5)
    do
        turtle.digUp()
        turtle.up()
        x,y,z = gps.locate()
        sendcoords()
        if y == starty
        then
        end5 = false
        turtle.turnLeft()
        turtle.turnLeft()
        turtle.turnLeft()
        turtle.turnLeft()
        end
    end
end


while(y > 12)
do
    turtle.digDown()
    turtle.down()
    x,y,z = gps.locate()
    sendcoords()
end

mine = true
while(mine)
do
    if mine == true
    then
        turn = math.random(1,3)
        rnd = math.random(20,100)
    end
    while(rnd > 0)
    do
        turtle.dig()
        turtle.forward()
        turtle.digDown()
        turtle.digUp()
        sendcoords()
        rnd = rnd - 1

        slot = turtle.getItemCount(16)
        if slot > 0
        then
            rnd = 0
            mine = false
            turn = 0
        end

        if msg == "home"
        then
            rnd = 0
            mine = false
            turn = 0
        end

        end
    if turn == 1
    then
        turtle.turnRight()
    elseif turn > 1
    then
        turtle.turnLeft()
    end
end
home()
end
parallel.waitForAll(receive,main)