powerController.lua

local component = require("component")
local event = require("event")
local width = 60
local height = 30
local gpu = component.gpu
local screen = component.screen
local term = require("term")

local black = 0x000000
local red = 0xFF0000
local green = 0x00FF00
local grey = 0x222222
local white = 0xFFFFFF

local creepers = false
local explosions = false

function initializeRedstone()
  --ask other computers for initial redstone values
end

function initializeScreen()
  term.clear()
  term.setCursorBlink(false)
  gpu.setResolution(width, height)
  gpu.setBackground(black)
  gpu.setForeground(black)
  gpu.fill(1, 1, width, height, " ")
  gpu.setForeground(white)
  screen.setTouchModeInverted(true)
end

function drawCreeper(enabled)
  if enabled then
    gpu.setBackground(green)
  else
    gpu.setBackground(grey)
  end
  gpu.fill(width/2+1,height/4+1,width/2,height/2," ")
  gpu.setBackground(black)
  gpu.fill(width/2+width/12,height/4+4,width/8,height/8," ")
  gpu.fill(width-width/12*2,height/4+4,width/8,height/8," ")
  gpu.fill(width/4+width/2-width/32,height/2,width/8,height/6," ")
  gpu.fill(width-width/6,height/2+height/12,width/8,height/6," ")
  gpu.fill(width-width/4-width/8,height/2+height/12,width/8,height/6," ")
end

function drawTNT(enabled)
  if enabled then
    gpu.setBackground(red)
  else
    gpu.setBackground(grey)
  end
  gpu.fill(1,height/4+1,width/2,height/2," ")
  gpu.setBackground(white)
  gpu.fill(1,height/2-height/32,width/2,height/8," ")
  gpu.setBackground(black)
end

function drawButtons()
  drawCreeper(creepers)
  drawTNT(explosions)
end

function handleTouch(_,screen,x,y,buttonId,playerName)
  if x <= width/2 and y >= height/4 and y <= height-height/4 then
    explosions = not explosions
  elseif x > width/2 and y >= height/4 and y <= height-height/4 then
    creepers = not creepers
  end
  drawButtons()
end

initializeRedstone()
initializeScreen()
drawButtons()

event.listen("touch", handleTouch)