--center pane?

toolkit_index = 1 

unselected_color = 6
selected_color = 10
selected_secondary_color = 7

z_pressed = false
export_icon_up = false

function toolkit_update()
	if current_pane == 2 then
		if btnp(2) and not btn(4) then
			toolkit_index -= 1
			if (toolkit_index < 1) toolkit_index = 1
		elseif btnp(3) and not btn(4) then	
			toolkit_index += 1
			if (toolkit_index > 4) toolkit_index = 4
		end

		export_icon_up = false
		if btnp(4) then
			if (toolkit_index==1) then
				do_export()
				export_icon_up = true
			end
			if (toolkit_index==2) do_switch_handles()
			if (toolkit_index==3) do_linked_edits()
		end
		if btn(4) and toolkit_index==4 then
			if (btnp(2)) do_change_instruction(-1)
			if (btnp(3)) do_change_instruction(1)
		end
	
		if (not btn(4)) export_icon_up = false
	end
end


function do_export()
	local output = export_memory(m)
	printh(output, '@clip')
end

function do_switch_handles()
	show_path_handles = not show_path_handles
end

function do_linked_edits()
	use_linked_editing = not use_linked_editing
end


function do_change_instruction(direction)
	current_node = holding
	if (current_node==nil) current_node = under
	change_node(current_node, 1)
end

function change_node(record, direction)
	if (record==nil) return
	
		
	idx=1
	for i, v in pairs(instructions) do
		if v==record.operation[1] then
			idx = i
			break
		end
	end
	
	new_idx = idx + direction
	if (new_idx>#instructions) new_idx = 1
	if (new_idx<1) new_idx = #instructions
	m[record.address[1]][record.address[2]][1] = instructions[new_idx]
end

tooltips = {
"export current vram to clipboard",
"show/hide node markers",
"isolate nodes while editing?",
"🅾️+⬆️/⬇️ to change node type"
}
function get_current_tooltip_text()
	return tooltips[toolkit_index]
end

function c_pane_draw()
	rectfill(39, 14, 60, 116, frame_color)

	for i=1,4 do
		local c=unselected_color
		if i==toolkit_index then
			c=selected_secondary_color
		end
		if i==toolkit_index and current_pane==2 then
			c=selected_color
			rect(40, 21*i-7, 59, 21*i+12, 7)
		end
		
		rect(41, 21*i-6, 58, 21*i+11, c)
		
		spr_num = 2+2*i
		
		if i==1 and export_icon_up then
		 spr_num += 32
		end
		
		if i==2 and not show_path_handles then
			spr_num += 32
		end
		
		if i==3 and not use_linked_editing then
			spr_num += 32
		end
		
		spr(spr_num, 42, 21*i-5, 2, 2)
	end
end