--the amount of room for the cards to be in
hand_width = 96

--the size of the room in pixels
room_width = 128

--number of cards on screen
card_num = 0

--the width of the card in pixels
card_width = 12

--how many cards until they compress
card_fit_num = flr(hand_width/card_width)

function _update()

	--update card_num
	if btnp(❎) then
		card_num += 1
	end
	if btnp(🅾️) and card_num > 0 then
		card_num -= 1
	end
	--update hand_width
	if btn(⬆️) then
		hand_width += 1
	end
	if btn(⬇️) and hand_width > 12 then
		hand_width -= 1
	end
	card_fit_num = flr(hand_width/card_width)

end

function _draw()

	--draw stuff
	cls(1)
	print("card num:"..card_num,43,50,6)
	print("x to add card",37,58)
	print("c to retract card",29,64)
	print("⬆️⬇️ to change hand size",15,70)

	line(room_width/2-hand_width/2-2,98,room_width/2-hand_width/2-2,117)
	line(room_width/2-hand_width/2+hand_width+1,98,room_width/2-hand_width/2+hand_width+1,117)
	line(room_width/2-hand_width/2-2,98,room_width/2-hand_width/2+hand_width+1,98)
	line(room_width/2-hand_width/2-2,117,room_width/2-hand_width/2+hand_width+1,117)

	--where the magic happens
	if card_num > card_fit_num then
		for i=0,card_num-1 do
			spr(1,(room_width/2-hand_width/2)+(hand_width-card_width)*(i/(card_num-1)),100,2,2)
		end
	else
		for i=0,card_num-1 do
			spr(1,(room_width/2-hand_width/2)+hand_width/2-(card_width*(card_num/2))+(i*card_width),100,2,2)
		end
	end

end