147 posts
Location
My Computer
Posted 04 December 2013 - 05:43 PM
Hello! I have created a wall building program, and I need help. So, the program works fine, except for big walls, I want it to detect when the slot it is on is empty and switch to the next slot. I wrote some code for it, but it is not working. No errors, it just does not switch. Any help?
Current code:
print("How long?")
local long = read()
print("How tall?")
local tall = read()
function wall()
for i = 1, tall do
turtle.up()
for i = 1, long do
turtle.placeDown()
turtle.forward()
end
for i = 1, long do
turtle.back()
end
end
end
a = 1
--Program
if turtle.getItemCount(a) == "0" then
a = a + 1
turtle.select(a)
wall()
else
wall()
end
147 posts
Location
My Computer
Posted 04 December 2013 - 06:42 PM
Please? Anyone?
7083 posts
Location
Tasmania (AU)
Posted 04 December 2013 - 06:54 PM
You're checking to see if your block slot is empty, then trying to build the entire wall without checking again.
Instead, you want to rig things so that it performs that check each time it goes to place a block.
Quick untested re-write:
Spoiler
local long,tall
local curslot = 1
turtle.select(curslot)
while not long do -- Loop while "long" is nil.
print("How long?")
long = tonumber(read()) -- This returns a proper numeric variable, or nil if a number wasn't entered.
end
while not tall do
print("How tall?")
tall = tonumber(read())
end
local function wall()
for i = 1, tall do
turtle.up()
for j = 1, long do
while turtle.getItemCount(curslot) == 0 do -- Loop until we find a slot with items.
curslot = curslot + 1
turtle.select(curslot)
end
turtle.placeDown()
turtle.forward()
end
for j = 1, long do
turtle.back()
end
end
end
wall()