left

function offRs()
rs.setOutput("back",false)
rs.setOutput("front",false)
rs.setOutput("left",false)
rs.setOutput("right",false)
end

function fillone()
chest.pushItem("up", 1, 1, 1)
chest.pushItem("up", 2, 1, 1)
end

function filltwo()
chest.pushItem("up", 1, 1, 2)
chest.pushItem("up", 2, 1, 2)
end

function fillIt()
for i = 1,4 do
fillone()
end
for i = 1,3 do
filltwo()
end
end


function checkIt()

if turtle.getItemCount(1) <= 4 then
count = count + 1
end

if turtle.getItemCount(2) <= 3 then
count = count + 1
end
end

function goLeft()
turtle.turnLeft()
turtle.forward()
turtle.turnRight()
end

function goRight()
turtle.turnRight()
turtle.forward()
turtle.turnLeft()
end

function place1()
turtle.select(1)
turtle.place()
end

function place2()
turtle.select(2)
turtle.place()
end

function summon()
turtle.up()
turtle.up()
turtle.up()
turtle.up()
turtle.forward()
turtle.forward()
place1()
turtle.up()
place1()
goLeft()
place1()
goRight()
goRight()
place1()
turtle.up()
place2()
goLeft()
place2()
goLeft()
place2()
goRight()
turtle.down()
turtle.down()
turtle.turnLeft()
turtle.turnLeft()
turtle.forward()
turtle.forward()
turtle.down()
turtle.down()
turtle.down()
turtle.down()
turtle.turnRight()
turtle.turnRight()
end

function rsClock()
rs.setOutput("left", true)
sleep(5)
rs.setOutput("left", false)
end

chest = peripheral.wrap("bottom")

count = 0

while true do
offRs()
term.clear()
term.setCursorPos(1,1)

if rs.getInput("front", true) then


print("Initializing.")
textutils.slowPrint("}}}}}}}}}}}}}}}}}}}}")
print(" ")
print("Loading Materials.")
textutils.slowPrint("}}}}}}}}}}}}}}}}}}}}")
do fillIt()
sleep(1)
print(" ")
print("Checking Materials.")

do checkIt()
sleep(1)
textutils.slowPrint("}}}}}}}}}}}}}}}}}}}}")
print(" ")
end

if count == 0 then
rs.setOutput("right", true)
end

if rs.getInput("back", true) then
print("Summoning Wither.")
sleep(1)
summon()
sleep(180)
else sleep(1)
end

if count ~= 0 then
print("Missing Materials.")
print(" ")

rsClock()
sleep(1)

end
end
end
end