libgui

function setup(name)
  sx,sy = nil
  buttons = {}
  if (name == "term") then
    sx,sy = term.getSize()
  else
    m = peripheral.wrap(name)
    term.redirect(m)
    sx,sy = m.getSize()
  end
end
function exit()
  term.native()
end
function drawText(x,y,color,colorb,text)
  term.setCursorPos(x,y)
  term.setTextColor(color)
  term.setBackgroundColor(colorb)
  term.write(text)
end
function clearScreen()
  term.clear()
end
function setBackgroundColor(color)
  term.setBackgroundColor(color)
end
function setTextColor(color)
  term.setTextColor(color)
end
function drawBT(name,x,xe,y,ye,color,colorb,text)
  term.setBackgroundColor(colorb)
  term.setTextColor(color)
  for i=x,xe do
    for g=y,ye do
      term.setCursorPos(i,g)
      term.write(" ")
    end
  end
  textline = (y + ye) / 2
  textline = string.format("%.1f", textline)
  textline = tonumber(textline)
  term.setCursorPos(x,textline)
  term.write(text)
  table.insert(buttons,name..";"..x..";"..xe..";"..y..";"..ye)
end
function isButton(x,y)
  for i=1,#buttons do
    local parts = {}
    for word in string.gmatch(buttons[i],"[^;]+") do
      table.insert(parts,word)
    end
    name,bx,bxe,by,bye = parts[1],tonumber(parts[2]),tonumber(parts[3]),tonumber(parts[4]),tonumber(parts[5])
    if (bx-1 < x and x < bxe + 1 ) then
      if (by-1 < y and bye+1 > y) then
        return name
      end
    end
  end
  return false
end
function fill(x,x2,y,y2,color)
  term.setBackgroundColor(color)
  for i=x,x2 do
    for g=y,y2 do
      term.setCursorPos(i,g)
      term.write(" ")
    end
  end
end
function fillScreen(color)
  term.setBackgroundColor(color)
  term.clear()
end