build

local tArgs = { ... }
if #tArgs ~= 1 then
    print( "Usage: build <router_name>" )
    return
end
local name=tArgs[1]
local filename='routers'
local file=fs.open(shell.dir()..'/'..filename,'r')
if not file then
  print('File '..filename..' not found')
  return
end
local line=file.readLine()
while line do
  n,x,z=line:match('(%S+)%s+([%+%-%d]%d*)%s+([%+%-%d]%d*)')
  if n==name then break end
  n=nil
  line=file.readLine()
end
file.close()
if n then
  x=tonumber(x)
  z=tonumber(z)
  print(name,' ',x,' ',z)
else
  print(name..' not registered')
  return
end
p=peripheral.wrap('bottom')
w = p.getWorld(p.getPeripheralWorldID())
y=253
if w.getBlockID(x, y, z)~=0 then
  print('Place is not empty. Continue? (y/n)')
  if read()~='y' then
    return
  end
end
blocks={{id=7,md=0},{id=451,md=4},{id=1226,md=1},{id=1225,md=0},{id=7,md=0}}
for i=5,1,-1 do
  for k=-1,1 do
    for l=-1,1 do
      if k==0 and l==0 then
        w.setBlock(x,y+i-4,z,blocks[i].id,blocks[i].md)
      else
        w.setBlock(x+k,y+i-4,z+l,7,0)
      end
    end
  end
end