tren

local component = require("component")
local sides = require("sides")
local rs = component.redstone
local gpu = component.gpu
local event = require("event")
local colours = require("colors")

function trainDirection(direction)
if direction == "north" then
return 0
elseif direction == "east" then
return 1
elseif direction == "south" then
return 2
else
return 3
end
end

function getStoredTrain()
for i = 1, 16, 1 do
if rs.getBundledInput(sides.north, i) == 1 then
return i
break
end
end
end

function countTrains()
local count = 0
for i = 0, 16, 1 do
if rs.getBundledInput(sides.north, i) == 1 then
count = count + 1
end
end
return count
end

function releaseTrain(id)
rs.setBundledOutput(sides.east, id, 1)
os.sleep(2)
rs.setBundledOutput(sides.east, id, 0)
end

function setDestination(dire)
rs.setBundledOutput(sides.bottom, dire, 1)
end

function resetDestination()
for i = 0, 16, 1 do
rs.setBundledOutput(sides.bottom, i, 0)
end
end

function drawButtons()
old = gpu.setBackground(colours.red)
gpu.fill(10, 5, 20, 3, " ")
gpu.setBackground(old)
end

drawButtons()
while true do
local _, addr, x, y, but, player = event.pull("touch")

os.sleep(1)
end