View difference between Paste ID: 4pt59wzE and YUPjgQmd

 local API = {}
 local button={}
 
 local component = require("component")
 local colors = require("colors")
 local term = require("term")
 local mon = component.gpu
 local w, h = mon.getResolution()
 local Green = 0x00AA00
 local Red = 0xAA0000
 local Black = 0x000000
 
 buttonStatus = nil
 
 function API.clear()
   mon.setBackground(Black)
   mon.fill(1, 1, w, h, " ")
 end
 
 function API.clearTable()
   button = {}
   API.clear()
 end
 
 function API.setTable(name, func, xmin, xmax, ymin, ymax)
   button[name] = {}
   button[name]["func"] = func
   button[name]["active"] = false
   button[name]["xmin"] = xmin
   button[name]["ymin"] = ymin
   button[name]["xmax"] = xmax
   button[name]["ymax"] = ymax
 end
 
 function API.fill(text, color, bData)
   local yspot = math.floor((bData["ymin"] + bData["ymax"]) /2)
   local xspot = math.floor((bData["xmax"] + bData["xmin"] - string.len(text)) /2)+1
   local oldColor = mon.setBackground(color)
   mon.fill(bData["xmin"], bData["ymin"], (bData["xmax"]-bData["xmin"]+1), (bData["ymax"]-bData["ymin"]+1), " ")
   mon.set(xspot, yspot, text)
   mon.setBackground(oldColor)
 end
 
 function API.screen()
   local currColor
   for name,data in pairs(button) do
     local on = data["active"]
     if on == true then currColor = Green else currColor = Red end
     API.fill(name, currColor, data)
   end
 end
 
 function API.toggleButton(name)
   button[name]["active"] = not button[name]["active"]
   buttonStatus = button[name]["active"]
   API.screen()
 end
 
 function API.flash(name,length)
   API.toggleButton(name)
   API.screen()
   os.sleep(length)
   API.toggleButton(name)
   API.screen()
 end
 
 function API.checkxy(x, y)
   for name, data in pairs(button) do
     if y>=data["ymin"] and  y <= data["ymax"] then
       if x>=data["xmin"] and x<= data["xmax"] then
         data["func"]()
           return true
       end
     end
   end
   return false
 end
 
 function API.heading(text)
   w, h = mon.getResolution()
   term.setCursor((w-string.len(text))/2+1, 1)
   term.write(text)
 end
 
 function API.label(w, h, text)
   term.setCursor(w, h)
   term.write(text)
 end
 
 return API
 
 
 
 
 
 --eof