Generic UI

local Gui = {
    version="0.0.3",
    buttons={}
}

function Gui.newButton(name, x, y, width, height, text)
    local button = {
        name=name,
        x=x,
        y=y,
        width=width,
        height=height,
        text=text,
        color=colors.white,
        textColor=colors.black,
        clickColor=colors.gray,
        baseColor=colors.white
    }

    table.insert(Gui.buttons, button)
end

function Gui.drawButtons()
    for i,button in ipairs(Gui.buttons) do
        paintutils.drawFilledBox(button.x, button.y, button.x+button.width-1, button.y+button.height-1, button.color)
        term.setTextColor(button.textColor)
        term.setCursorPos(button.x, math.ceil((button.height/2) + button.y - 1))
        term.write(button.text)
    end
end

function Gui.buttonPressed(x,y)
    for i,button in ipairs(Gui.buttons) do
        if ((x >= button.x and x <= button.x+button.width-1) and (y >= button.y and y <= button.y+button.height-1)) then
            return button
        end
    end

    return null
end

return Gui