UI API (version 1.0.0) (CC Only)

function drawProgBar(done, max, x, y, wide, colorBright, colorDark)
    local oldX, oldY = term.getCursorPos()
    local oldBC = term.getBackgroundColor()
    local oldTC = term.getTextColor()
    local val = done / max
    term.setBackgroundColor(colors.black)
    term.setTextColour(colors.black)
    if oldBC == colors.black then
        term.setBackgroundColor(colors.black)
        term.setTextColor(colors.gray)
    end
    term.setCursorPos(x,y)
    write((string.char(153)):rep(wide))
    term.setTextColor(colorDark)
    term.setBackgroundColor(colorBright)
    term.setCursorPos(x,y)
    write((string.char(153)):rep(math.floor(val
     * wide)))
    term.setBackgroundColor(oldBC)
    term.setTextColour(oldTC)
    term.setCursorPos(oldX, oldY)
end

function calcPercent(done, max)
    local val = done / max
    local per = math.floor(val * 100)
    return per
end

function tableCount(t)
    local table = t
    local count = 0
    for _ in pairs(table) do
        count = count + 1
    end
    return count
end

function smoothAdd(fromNum, toNum, speed)
    return ((toNum - fromNum) / (speed or 10))
end

local demo = false

local per = 0
local change = 0.1
local max = 10
local w, h = term.getSize()
while demo do
    w, h = term.getSize()
    if per > max then
        per = max
        change = -0.1
    end
    if per < 0 then
        per = 0
        change = 0.1
    end
    drawProgBar(per, max, 2, 2, 5, colors.green, colors.lime)
    drawProgBar(per, max, 2, 4, 10, colors.blue, colors.cyan)
    drawProgBar(per, max, 2, 6, 15, colors.red, colors.orange)
    per = per + change
    sleep(0.1)
end