ComputerCraft/Tree_Farm/farmtree.lua

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--[[Tree Farming App by Al Sweigart
Plants tree and cuts it down.]]
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os.loadAPI('hare.lua') -- Load the hare module
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local NUM_OF_TREES = 4
local TREE_SAPLING = 'spruce'
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-- Check if choptree program exists
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if not fs.exists('choptree.lua') then
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error('You must install choptree app first')
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end
while true do
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-- First of all, wait a few minutes
os.sleep(300)
-- Check if turtle has enough fuel
if turtle.getFuelLevel() < (2 * (3 * NUM_OF_TREES)) then
hare.selectItem('minecraft:' .. TREE_SAPLING .. 'log')
turtle.refuel(2)
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end
-- Empty everything except for the saplings
for i = 1, 16 do
local item = turtle.getItemDetail(i)
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if item ~= nil and item['name'] ~= 'minecraft:' .. TREE_SAPLING .. '_sapling' then
turtle.select(i)
turtle.drop()
end
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end
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-- Check if we have saplings in our inventory
if not hare.selectItem('minecraft:' .. TREE_SAPLING .. '_sapling') then
error('Out of ' .. TREE_SAPLING .. ' saplings')
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end
-- Build a Loop, where we plant and cut trees
for i = 1, NUM_OF_TREES do
turtle.back()
turtle.back()
turtle.back()
turtle.turnRight()
blockExists, item = turtle.inspect()
if blockExists and item['name'] == 'minecraft:' .. TREE_SAPLING .. '_log' then
hare.selectEmtySlot()
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shell.run('choptree.lua') -- Run Choptree
elseif blockExists and item['name'] ~= 'minecraft:' .. TREE_SAPLING .. '_sapling' then
print('Error! Wrong block')
elseif not blockExists then
turtle.forward()
local success, underneath = turtle.inspectDown()
if underneath['name'] ~= 'minecraft:dirt' and underneath['name'] ~= 'minecraft:grass_block' then
print('Error. No Dirt or Grass underneath to plant a tree. Found: ' .. underneath['name'])
turtle.back()
else
turtle.back()
hare.selectItem('minecraft:' .. TREE_SAPLING .. '_sapling')
turtle.place()
end
end
turtle.turnLeft()
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end
-- Move forward to the chest again
for i = 1, (3 * NUM_OF_TREES) do
turtle.forward()
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end
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end