button1 API

local mon = peripheral.wrap("top")
mon.setTextScale(1)
mon.setTextColor(colors.white)
local button={}
mon.setBackgroundColor(colors.black)

function clearTable()
    button = {}
end

function setTable(name, func, param, xmin, xmax, ymin, ymax)
    button[name] = {}
    button[name]["func"] = func
    button[name]["param"] = param
    button[name]["active"] = false
    button[name]["xmin"] = xmin
    button[name]["ymin"] = ymin
    button[name]["xmax"] = xmax
    button[name]["ymax"] = ymax
end
function funcName()
    print("You clicked buttonText")
end

function fillTable()
    setTable("ButtonText", funcName, 5, 25, 4, 8)
end
function fill(text, color, bData)
    mon.setBackgroundColor(color)
    local yspot = math.floor((bData["ymin"] + bData["ymax"]) /2)
    local xspot = math.floor((bData["xmax"] - bData["xmin"] - string.len(text)) /2)
    for j = bData["ymin"], bData["ymax"] do
        mon.setCursorPos(bData["xmin"], j)
        if j == yspot then
            for k = 0, bData["xmax"] - bData["xmin"] - string.len(text) +1 do
                if k == xspot then
                    mon.write(text)
                    else
                    mon.write(" ")
                end
            end
            else
            for i = bData["xmin"], bData["xmax"] do
                mon.write(" ")
            end
        end
    end
    mon.setBackgroundColor(colors.black)
end

function screen()
    local currColor
    for name,data in pairs(button) do
        local on = data["active"]
        if on == true then currColor = colors.lime else currColor = colors.red end
        fill(name, currColor, data)
    end
end
function toggleButton(name)
    button[name]["active"] = not button[name]["active"]
    screen()
end
function flash(name)
    toggleButton(name)
    screen()
    sleep(0.15)
    toggleButton(name)
    screen()
end

function 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"](data["param"])
                return true
                --data["active"] = not data["active"]
                --print(name)
            end
        end
    end
    return false
end

function heading(text)
    w, h = mon.getSize()
    mon.setCursorPos((w-string.len(text))/2+1, 1)
    mon.write(text)
end

function label(w, h, text)
    mon.setCursorPos(w, h)
    mon.write(text)
end