I have an assignment where I have to make a ball move and make a paddle move. I cannot move onto the next step because I can't seem to get the paddle to move when i press the buttons. Any help would be appreciated. Here is what I have for a code so far.

ball_x = 3

x_speed = 1

ball_y = 15

y_speed = 1

ball_round = 3

col = 0

pad_x = 52

pad_y = 120

pad_dx = 0

pad_w = 24

pad_h = 3

pad_c = 7

function _init()

cls()

end

function _update()

ball_y = ball_y+y_speed

ball_x = ball_x+x_speed

col=col+1

pad_y = pad_y+pad_dx

pad_x = pad_x+pad_dx

pad_c=pad_c+1

buttpress = false

if btn(0)

then pad_dx =-5

end

if btn(1)

then pad_dx+=5

end

if not (buttpress) then

pad_dx = pad_dx/1.7

end

pad_x+=pad_dx

if ball_x > 127

then x_speed = -2

end

if ball_x < 0

then x_speed = 2

end

if ball_y > 127

then y_speed = -2

end

if ball_y < 0

then y_speed = 2

end

end

function _draw()

cls()

circfill(ball_x,ball_y,ball_round,col)

rectfill(30,10,3,8)

end

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