local pipes_sheet = {
straight_vertical_single = 	{number = 11, position = {x= 0, y= 0}, size = {x=8, y=8}}, 

ending_right = 					{number = 12, position = {x= 8, y= 0}, size = {x=6, y=8}, shift = {x=  1, y=  0}},--where must be center 
straight_horizontal_window = 	{number = 13, position = {x=14, y= 0}, size = {x=4, y=8}}, 
straight_horizontal = 			{number = 14, position = {x=18, y= 0}, size = {x=4, y=8}}, 
ending_left = 						{number = 15, position = {x=22, y= 0}, size = {x=6, y=8}, shift = {x= -1, y=  0}}, 

ending_down = 						{number = 21, position = {x= 0, y= 8}, size = {x=8, y=6}, shift = {x=  0, y=  1}}, 
straight_vertical_window = 	{number = 31, position = {x= 0, y=14}, size = {x=8, y=4}}, 
straight_vertical = 				{number = 41, position = {x= 0, y=18}, size = {x=8, y=4}}, 
ending_up = 						{number = 51, position = {x= 0, y=22}, size = {x=8, y=6}, shift = {x=  0, y= -1}}, 

corner_down_right = 				{number = 22, position = {x= 8, y= 8}, size = {x=6, y=6}, shift = {x=  1, y=  1}}, 
t_down = 							{number = 23, position = {x=14, y= 8}, size = {x=4, y=6}, shift = {x=  0, y=  1}}, 
corner_down_left = 				{number = 24, position = {x=18, y= 8}, size = {x=6, y=6}, shift = {x= -1, y=  1}}, 

t_right = 							{number = 32, position = {x= 8, y=14}, size = {x=6, y=4}, shift = {x=  1, y=  0}}, 
cross = 								{number = 33, position = {x=14, y=14}, size = {x=4, y=4}}, 
t_left = 							{number = 34, position = {x=18, y=14}, size = {x=6, y=4}, shift = {x= -1, y=  0}}, 

corner_up_right = 				{number = 42, position = {x= 8, y=18}, size = {x=6, y=6}, shift = {x=  1, y= -1}}, 
t_up = 								{number = 43, position = {x=14, y=18}, size = {x=4, y=6}, shift = {x=  0, y= -1}}, 
corner_up_left = 					{number = 44, position = {x=18, y=18}, size = {x=6, y=6}, shift = {x= -1, y= -1}}, 

--data.raw[pipe-to-ground][pipe-to-ground].pictures.up
down = 								{number = 25, position = {x=24, y= 8}, size = {x=8, y=6}, shift = {x=  0, y=  1}}, 
up = 									{number = 35, position = {x=24, y=14}, size = {x=8, y=6}, shift = {x=  0, y= -1}}, -- not 26

right = 								{number = 52, position = {x= 8, y=24}, size = {x=6, y=8}, shift = {x=  1, y=  0}}, 
left = 								{number = 53, position = {x=14, y=24}, size = {x=6, y=8}, shift = {x= -1, y=  0}}
}

local sheet_path = "__TreeWoodPipes__/graphics/entity/pipe/"
local sheet_name = "pipe_sheet.png"

function change_graphics (was_picture, sheet_element, quality)
	local picture = {}
	local k = 1
	if not sheet_element.shift then sheet_element.shift = {x= 0, y= 0} end
	--log(serpent.block(was_picture, {comment = false}))
	if (quality == "hq") and (was_picture.hr_version) then
		log ("hq")
		picture = was_picture.hr_version
		k = 2
	else
		log ("lq")
		picture = was_picture
		k = 1
	end
	log (sheet_element.number .. " Quality = " .. quality)
	
	if not (picture) then return end
	picture.filename = sheet_path .. quality .. "_" .. sheet_name
	picture.width = 8 * k * sheet_element.size.x
	picture.height = 8 * k * sheet_element.size.y
	picture.scale = 1/k
	picture.x = 8 * k * sheet_element.position.x
	picture.y = 8 * k * sheet_element.position.y
	picture.shift = {}
	picture.shift.x = -8/32 * k * sheet_element.shift.x
	picture.shift.y = -8/32 * k * sheet_element.shift.y
	log (sheet_element.number .. " Quality = " .. quality .. " - Success")

end


-------------------------------pipes
local pipe_pictures = data.raw.pipe.pipe.pictures
for i, was_picture in pairs (pipe_pictures) do
	for j, sheet_element in pairs (pipes_sheet) do
		if i == j then
			log (i)
			change_graphics (was_picture, sheet_element, "hq")
			change_graphics (was_picture, sheet_element, "lq")
		end
	end
end

--------------------------------underground pipes
local pipe_to_ground_pictures = data.raw["pipe-to-ground"]["pipe-to-ground"].pictures

for i, was_picture in pairs (pipe_to_ground_pictures) do
	for j, sheet_element in pairs (pipes_sheet) do
		if i == j then
			log (i)
			change_graphics (was_picture, sheet_element, "hq")
			change_graphics (was_picture, sheet_element, "lq")
		end
	end
end