function love.load()
    -- Recognize background input
    local ffi = require("ffi")
    ffi.cdef[[
    typedef enum
    {
        SDL_FALSE = 0,
        SDL_TRUE = 1
    } SDL_bool;

    SDL_bool SDL_SetHint(const char *name, const char *value);
    ]]
    local sdl = ffi.os == "Windows" and ffi.load("SDL2") or ffi.C
    sdl.SDL_SetHint("SDL_JOYSTICK_ALLOW_BACKGROUND_EVENTS", "1")

    local Button = require "button"
    
    local joysticks = love.joystick.getJoysticks()
    joystick = joysticks[1]

    --movement keys
    mL = Button(8, 27, 24, "dpleft")
    mD = Button(62, 27, 24, "dpdown")
    mR = Button(109, 53, 24, "dpright")
    mU = Button(127, 144, 30, "dpup")
    movement = {mL, mD, mR, mU}

    --attack keys
    bA = Button(159, 29, 24, "x")
    bB = Button(208, 8, 24, "y")
    bC = Button(262, 9, 24, "rightshoulder")
    bD = Button(317, 16, 24, "leftshoulder")
    bE = Button(155, 85, 24, "a")
    bF = Button(206, 64,  24, "b")
    bG = Button(262, 64, 24, "triggerright")
    bH = Button(315,72, 24, "triggerleft")
    attack = {bA, bB, bC, bD, bE, bF, bG, bH}
end

function love.update(dt)
    --movement keys
    for _, button in ipairs(movement) do
        button:update(dt)
    end

    --attack keys
    for _, button in ipairs(attack) do
        button:update(dt)
    end
end

function love.draw()

    love.graphics.setBackgroundColor(1, 179/255, 102/255)

    --movement keys
    for _, button in ipairs(movement) do
        button:draw()
    end

    --attack keys
    for _, button in ipairs(attack) do
        button:draw()
    end
end