Reactor code

local reactors = {};
local energyCell = 1;
local mon = 1;
local reactorSel = 1;
local monSel = 1;
local w = 1;
local h = 1;
local clicked = "none";
local run = false;
local cell;

function getReactors()
  i = {};
  j = 1;
  for k=1, #peripheral.getNames() do
    if (string.find(peripheral.getNames()[k], "Reactor") ~= nil) then
      table.insert(i, j, peripheral.wrap(peripheral.getNames()[k]));
      j = j+1;
    end
  end
  return i;
end

function numberOf(item)
  i = 0;
  for j=1, #peripheral.getNames() do
    if (string.find(peripheral.getNames()[j], item) ~= nil) then
      i = i+1;
    end
  end
  return i;
end

function getMonitors()
  i = {};
  j = 1;
  for k=1, #peripheral.getNames() do
    if (string.find(peripheral.getNames()[k], "monitor") ~= nil) then
      table.insert(i, j, peripheral.wrap(peripheral.getNames()[k]));
      j = j+1;
    end
  end
  return i;
end

function getCell()
  for j=1, #peripheral.getNames() do
    if (string.find(peripheral.getNames()[j], "thermalexpansion_cell") ~= nil) then
      return peripheral.wrap(peripheral.getNames()[j]);
    end
  end
end

function setup()
  term.clear();
  term.setCursorPos(1,1);
  reactors = getReactors();
  if (#reactors > 0) then
    write(numberOf("monitor") .. " monitors detected.\nSelect 1-" .. numberOf("monitor") .. "\n>");
    monSel = tonumber(read());
    if (monSel < numberOf("monitor")) or (monSel > numberOf("monitor")) then
      write("Invalid monitor!\n");
    else
      mon = getMonitors()[monSel];
      term.redirect(mon);
      w, h = term.getSize();
      button.newButton("last", 3,2,3,2);
      button.newButton("next", 7,2,7,2);
      button.newButton("exit", w,h,w,h);
      button.newButton("power", 9,2,13,2);
      cell = getCell();
      run = true;
    end
  else
    write("No reactors detected!\n");
  end
end

function main()
  if (clicked == "last") then
    if (reactorSel > 0) then
      reactorSel = reactorSel-1;
    end
  elseif (clicked == "next") then
    if(reactorSel < numberOf("Reactor")) then
      reactorSel = reactorSel+1;
    end
  elseif (clicked == "exit") then
    term.setBackgroundColor(colors.black);
    term.clear();
    run = false;
    return;
  elseif (clicked == "power") then
    if(reactors[reactorSel].getActive()) then
      reactors[reactorSel].setActive(false);
    else
      reactors[reactorSel].setActive(true);
    end
  end

  paintutils.drawFilledBox(1, 1, w, h, colors.black);

  current = reactors[reactorSel];

  term.setCursorPos(3,2);

  term.setBackgroundColor(colors.blue);
  term.setTextColor(colors.black);
  term.write("<");

  term.setBackgroundColor(colors.black);
  term.setTextColor(colors.white);
  term.write(" " .. reactorSel .. " ");

  term.setBackgroundColor(colors.blue);
  term.setTextColor(colors.black);
  term.write(">");


  term.setCursorPos(9,2);
  if(current.getActive()) then
    term.setBackgroundColor(colors.red);
       term.setTextColor(colors.black);
    term.write("STOP ");
  else
    term.setBackgroundColor(colors.green);
    term.setTextColor(colors.black);
    term.write("START");
  end

  term.setCursorPos(1, h-2);
  term.setTextColor(colors.white);
  term.setBackgroundColor(colors.black);
  term.write("Energy Cell Storage");

  paintutils.drawFilledBox(1, h-1, w*(cell.getEnergyStored()/cell.getMaxEnergyStored()), h, colors.red);

  paintutils.drawFilledBox(2, (h*(1/4))*(current.getFuelAmount()/current.getFuelAmountMax()), 4, h-4, colors.yellow);

  term.setCursorPos(w,h);
  term.setBackgroundColor(colors.red);
  term.setTextColor(colors.black);
  term.write("X");

  os.startTimer(5);
  os.pullEventRaw("timer");
end

setup();

while run do
  parallel.waitForAny(button.monDetect, main);
  clicked = button.getLastClicked();
end