button api

mainButton = {}

mt = {
__index = mainButton
}
function create(name)
return setmetatable(name,mt)
end

function mainButton:new(x1,x2,y1,y2)
  self.map = {} -- create map of button
  self.pos = {x1,x2,y1,y2}
  for w = x1, x2 do
  --write("\n"..w.."-")
  self.map[w] = {} -- enter the current width
    for h = y1, y2 do
	self.map[w][h] = h -- enter then current height of the current width
	--write(" "..h)
	--sleep(0.1)
	end
  end

end
--mainButton:new(4,8,4,8)
function mainButton:draw(color)
  for key1, value1 in pairs(self["map"]) do
    for key2, value2 in pairs(self["map"][key1]) do
	paintutils.drawPixel(key1,value2,color)
	end
  end

end

function mainButton:cText(txt)
w = math.ceil((self["pos"][1] + self['pos'][2])/2 - #txt/2)
h = math.ceil((self['pos'][3] + self['pos'][4])/2 - #txt/2)
term.setCursorPos(w,h)
write(txt)
end

function mainButton:click()
_,_,x,y = os.pullEvent("mouse_click")
  for key1, value1 in pairs(self["map"]) do
    for key2, value2 in pairs(self["map"][key1]) do
       if x == key1 and y == value2 then
	   return true
	   end
	 end
   end
   return false
end