nfp Viewer

width = 0
height = 0
args = {...}
file = args[1]
w,h = term.getSize()
f = fs.open(file,"r")
--data = f.readAll()
f.close()
fi = fs.open(file,"r")
lines = 0
line = fi.readLine()
width = #line
while line do
  line = fi.readLine()
  lines = lines + 1
end
fi.close()
height = lines
--print(width)
--print(height)
mx = 0
my = 0
image = {}

color = {
["0"] = 1,
["1"] = 2,
["2"] = 4,
["3"] = 8,
["4"] = 16,
["5"] = 32,
["6"] = 64,
["7"] = 128,
["8"] = 256,
["9"] = 512,
["a"] = 1024,
["b"] = 2048,
["c"] = 4096,
["d"] = 8192,
["e"] = 16384,
["f"] = 32768,
[" "] = 32768
}
print(width)
print(height)
sleep(1)
fil = fs.open(file,"r")
for y = 1,height do
  line = fil.readLine()
  image[y] = {}
  os.queueEvent("randomEvent")
  os.pullEvent()
  print("did event "..y)
  for x = 1,width do
    --os.queueEvent("randomEvent")
    --os.pullEvent()
    if line then
      line = line..""
      image[y][x] = color[line:sub(x,x)]
    else
      print("uh oh no value at x: "..x.." y: "..y)
    end
  end
end
fil.close()
function display()--xx,yy)
    for xc = 1,w do
      for yc = 1,h do
        if xc <= width and yc <= height then
          --print(image[xc+mx][yc+my])
          num = image[yc+my][xc+mx]
          --write(num)
          if num then term.setBackgroundColor(image[yc+my][xc+mx]) else term.setBackgroundColor(colors.black) end--[yc+my]) end
          term.setCursorPos(xc,yc)
          write(" ")
        end
      end
    end
end
term.clear()
display(0,0)
run = true

function go()
  term.setBackgroundColor(colors.black)
  term.clear()
  display(mx,my)
end

while run do
  event,key = os.pullEvent("key")
  if key == 200 and my >= 20 then
    my = my - 20
    go()
  elseif key == 208 and my <= height - h - 20 then
    my = my + 20
    go()
  elseif key == 203 and mx >= 20 then
    mx = mx - 20
    go()
  elseif key == 205 and mx <= width - w - 20 then
    mx = mx + 20
    go()
  elseif key == 28 then
     run = false
  end
end