--Usercode Environment
local env = {}

env.pos = {0,0,0}
function env.offset()
	drone.setStatusText(tostring(drone.getOffset()))
	return drone.getOffset()
end
function env.move(x,y,z)
	drone.move(x,y,z)
	coroutine.yield("cd", "return offset() < .05")
	env.pos[1] = env.pos[1] + x
	env.pos[2] = env.pos[2] + y
	env.pos[3] = env.pos[3] + z
end

function env.goTo(x,y,z)
	env.move(x-env.pos[1],y-env.pos[2],z-env.pos[3])
end

--Main Code
local running = true
local paused = false
local condition = ""

local userCode = "move(0,10,0) move(10,-10,0) move(-10,0,0)"

function mainRoutine()
	computer.beep(1000,1)
	load(userCode, env)()
	--running = false
end

local main = coroutine.create(mainRoutine)

while running do
	--currentSignal = {computer.pullSignal(0)}
	if not paused then
		local y, c = coroutine.resume(main)
		if y == "cd" then
			paused = true
			condition = c
		end
	else
		if load(condition, env)() then
			paused = false
		end
	end
	computer.pullSignal(.2)
end