-- utils.lua by binbinhfr, v1.0.16
-- A 3Ra Gaming revision
-- define debug_status to 1 or nil in the control.lua, before statement require("utils")
-- define also debug_file and debug_mod_name

colors = {
	white = { r = 1, g = 1, b = 1 },
	black = { r = 0, g = 0, b = 0 },
	darkgrey = { r = 0.25, g = 0.25, b = 0.25 },
	grey = { r = 0.5, g = 0.5, b = 0.5 },
	lightgrey = { r = 0.75, g = 0.75, b = 0.75 },
	red = { r = 1, g = 0, b = 0 },
	darkred = { r = 0.5, g = 0, b = 0 },
	lightred = { r = 1, g = 0.5, b = 0.5 },
	green = { r = 0, g = 1, b = 0 },
	darkgreen = { r = 0, g = 0.5, b = 0 },
	lightgreen = { r = 0.5, g = 1, b = 0.5 },
	blue = { r = 0, g = 0, b = 1 },
	darkblue = { r = 0, g = 0, b = 0.5 },
	lightblue = { r = 0.5, g = 0.5, b = 1 },
	orange = { r = 1, g = 0.55, b = 0.1 },
	yellow = { r = 1, g = 1, b = 0 },
	pink = { r = 1, g = 0, b = 1 },
	purple = { r = 0.6, g = 0.1, b = 0.6 },
	brown = { r = 0.6, g = 0.4, b = 0.1 },
}

anticolors = {
	white = colors.black,
	black = colors.white,
	darkgrey = colors.white,
	grey = colors.black,
	lightgrey = colors.black,
	red = colors.white,
	darkred = colors.white,
	lightred = colors.black,
	green = colors.black,
	darkgreen = colors.white,
	lightgreen = colors.black,
	blue = colors.white,
	darkblue = colors.white,
	lightblue = colors.black,
	orange = colors.black,
	yellow = colors.black,
	pink = colors.white,
	purple = colors.white,
	brown = colors.white,
}

lightcolors = {
	white = colors.lightgrey,
	grey = colors.darkgrey,
	lightgrey = colors.grey,
	red = colors.lightred,
	green = colors.lightgreen,
	blue = colors.lightblue,
	yellow = colors.orange,
	pink = colors.purple,
}

local author_name1 = "BinbinHfr"
local author_name2 = "binbin"

--------------------------------------------------------------------------------------
function read_version(v)
	local v1, v2, v3 = string.match(v, "(%d+).(%d+).(%d+)")
	debug_print("version cut = ", v1, v2, v3)
end

--------------------------------------------------------------------------------------
function compare_versions(v1, v2)
	local v1a, v1b, v1c = string.match(v1, "(%d+).(%d+).(%d+)")
	local v2a, v2b, v2c = string.match(v2, "(%d+).(%d+).(%d+)")

	v1a = tonumber(v1a)
	v1b = tonumber(v1b)
	v1c = tonumber(v1c)
	v2a = tonumber(v2a)
	v2b = tonumber(v2b)
	v2c = tonumber(v2c)

	if v1a > v2a then
		return 1
	elseif v1a < v2a then
		return -1
	elseif v1b > v2b then
		return 1
	elseif v1b < v2b then
		return -1
	elseif v1c > v2c then
		return 1
	elseif v1c < v2c then
		return -1
	else
		return 0
	end
end

--------------------------------------------------------------------------------------
function older_version(v1, v2)
	local v1a, v1b, v1c = string.match(v1, "(%d+).(%d+).(%d+)")
	local v2a, v2b, v2c = string.match(v2, "(%d+).(%d+).(%d+)")
	local ret

	v1a = tonumber(v1a)
	v1b = tonumber(v1b)
	v1c = tonumber(v1c)
	v2a = tonumber(v2a)
	v2b = tonumber(v2b)
	v2c = tonumber(v2c)

	if v1a > v2a then
		ret = false
	elseif v1a < v2a then
		ret = true
	elseif v1b > v2b then
		ret = false
	elseif v1b < v2b then
		ret = true
	elseif v1c < v2c then
		ret = true
	else
		ret = false
	end

	debug_print("older_version ", v1, "<", v2, "=", ret)

	return (ret)
end

--------------------------------------------------------------------------------------
function debug_active(...)
	-- can be called everywhere, except in on_load where game is not existing
	local s = ""

	for i, v in ipairs({ ... }) do
		s = s .. tostring(v)
	end

	if s == "RAZ" or debug_do_raz == true then
		game.remove_path(debug_file)
		debug_do_raz = false
	elseif s == "CLEAR" then
		for _, player in pairs(game.players) do
			if player.connected then player.clear_console() end
		end
	end

	s = debug_mod_name .. "(" .. game.tick .. "): " .. s
	game.write_file(debug_file, s .. "\n", true)

	for _, player in pairs(game.players) do
		if player.connected then player.print(s) end
	end
end

if debug_status == 1 then debug_print = debug_active else debug_print = function() end end

--------------------------------------------------------------------------------------
function message_all(s)
	for _, player in pairs(game.players) do
		if player.connected then
			player.print(s)
		end
	end
end

--------------------------------------------------------------------------------------
function message_force(force, s)
	for _, player in pairs(force.players) do
		if player.connected then
			player.print(s)
		end
	end
end

--------------------------------------------------------------------------------------
function square_area(origin, radius)
	return {
		{ x = origin.x - radius, y = origin.y - radius },
		{ x = origin.x + radius, y = origin.y + radius }
	}
end

--------------------------------------------------------------------------------------
function distance(pos1, pos2)
	local dx = pos2.x - pos1.x
	local dy = pos2.y - pos1.y
	return (math.sqrt(dx * dx + dy * dy))
end

--------------------------------------------------------------------------------------
function distance_square(pos1, pos2)
	return (math.max(math.abs(pos2.x - pos1.x), math.abs(pos2.y - pos1.y)))
end

--------------------------------------------------------------------------------------
function pos_offset(pos, offset)
	return { x = pos.x + offset.x, y = pos.y + offset.y }
end

--------------------------------------------------------------------------------------
function surface_area(surf)
	local x1, y1, x2, y2 = 0, 0, 0, 0

	for chunk in surf.get_chunks() do
		if chunk.x < x1 then
			x1 = chunk.x
		elseif chunk.x > x2 then
			x2 = chunk.x
		end
		if chunk.y < y1 then
			y1 = chunk.y
		elseif chunk.y > y2 then
			y2 = chunk.y
		end
	end

	return ({ { x1 * 32 - 8, y1 * 32 - 8 }, { x2 * 32 + 40, y2 * 32 + 40 } })
end

--------------------------------------------------------------------------------------
function iif(cond, val1, val2)
	if cond then
		return val1
	else
		return val2
	end
end

--------------------------------------------------------------------------------------
function add_list(list, obj)
	-- to avoid duplicates...
	for i, obj2 in pairs(list) do
		if obj2 == obj then
			return (false)
		end
	end
	table.insert(list, obj)
	return (true)
end

--------------------------------------------------------------------------------------
function del_list(list, obj)
	for i, obj2 in pairs(list) do
		if obj2 == obj then
			table.remove(list, i)
			return (true)
		end
	end
	return (false)
end

--------------------------------------------------------------------------------------
function in_list(list, obj)
	for k, obj2 in pairs(list) do
		if obj2 == obj then
			return (k)
		end
	end
	return (nil)
end

--------------------------------------------------------------------------------------
function size_list(list)
	local n = 0
	for i in pairs(list) do
		n = n + 1
	end
	return (n)
end

--------------------------------------------------------------------------------------
function concat_lists(list1, list2)
	-- add list2 into list1 , do not avoid duplicates...
	for i, obj in pairs(list2) do
		table.insert(list1, obj)
	end
end

------------------------------------------------------------------------------------
function is_dev(player)
	return (player.name == author_name1 or player.name == author_name2)
end

--------------------------------------------------------------------------------------
function dupli_proto(type, name1, name2)
	if data.raw[type][name1] then
		local proto = table.deepcopy(data.raw[type][name1])
		proto.name = name2
		if proto.minable and proto.minable.result then proto.minable.result = name2 end
		if proto.place_result then proto.place_result = name2 end
		if proto.take_result then proto.take_result = name2 end
		if proto.result then proto.result = name2 end
		return (proto)
	else
		error("prototype unknown " .. name1)
		return (nil)
	end
end

--------------------------------------------------------------------------------------
function debug_guis(guip, indent)
	if guip == nil then return end
	debug_print(indent .. string.rep("....", indent) .. " " .. guip.name)
	indent = indent + 1
	for k, gui in pairs(guip.children_names) do
		debug_guis(guip[gui], indent)
	end
end

--------------------------------------------------------------------------------------
function extract_monolith(filename, x, y, w, h)
	return {
		type = "monolith",
		top_monolith_border = 0,
		right_monolith_border = 0,
		bottom_monolith_border = 0,
		left_monolith_border = 0,
		monolith_image = {
			filename = filename,
			priority = "extra-high-no-scale",
			width = w,
			height = h,
			x = x,
			y = y,
		},
	}
end

--------------------------------------------------------------------------------------
-- rounds number (num) to certain number of decimal places (idp)
function round(num, idp)
	local mult = 10 ^ (idp or 0)
	return math.floor(num * mult + 0.5) / mult
end

-- cleans up the color values, gets rid of floating point innacuracy
function clean_color(input_color)
	local temp_r = round(input_color.r, 6)
	local temp_g = round(input_color.g, 6)
	local temp_b = round(input_color.b, 6)
	local temp_a = round(input_color.a, 6)
	return { r = temp_r, g = temp_g, b = temp_b, a = temp_a }
end

--------------------------------------------------------------------------------------
-- returns true if colors are the same, false if different
function compare_colors(color1, color2)
	local clean_color1 = clean_color(color1)
	local clean_color2 = clean_color(color2)
	if clean_color1.r ~= clean_color2.r then
		return false
	end
	if clean_color1.g ~= clean_color2.g then
		return false
	end
	if clean_color1.b ~= clean_color2.b then
		return false
	end
	if clean_color1.a ~= clean_color2.a then
		return false
	end
	return true
end

--------------------------------------------------------------------------------------
-- Provide a player's name to put their inventory into a chest somewhere near spawn.
function return_inventory(player_name)
	local success, err = pcall(return_inventory_p, player_name)
	if not success then
		game.print(err)
		return
	end
	if err then
		return
	end
end
function return_inventory_p(player_name)
	local stolen_inventories = {
		main = game.players[player_name].get_inventory(defines.inventory.player_main),
		quickbar = game.players[player_name].get_inventory(defines.inventory.player_quickbar),
		guns = game.players[player_name].get_inventory(defines.inventory.player_guns),
		ammo = game.players[player_name].get_inventory(defines.inventory.player_ammo),
		armor = game.players[player_name].get_inventory(defines.inventory.player_armor),
		tools = game.players[player_name].get_inventory(defines.inventory.player_tools),
		vehicle = game.players[player_name].get_inventory(defines.inventory.player_vehicle),
		trash = game.players[player_name].get_inventory(defines.inventory.player_trash)
	}
	local chest_location = game.surfaces.nauvis.find_non_colliding_position("steel-chest", game.forces.player.get_spawn_position(game.surfaces.nauvis), 0, 1)
	local return_chest = game.surfaces.nauvis.create_entity{name = "steel-chest", position = chest_location, force = game.forces.player}
	local chest_inventory = return_chest.get_inventory(defines.inventory.chest)
	for _,inventory in pairs(stolen_inventories) do
		for name,count in pairs(inventory.get_contents()) do
			local inserted = chest_inventory.insert{name = name, count = count}
			if inserted > 0 then
				inventory.remove{name = name, count = inserted}
			end
			if inserted < count then
				chest_location = game.surfaces.nauvis.find_non_colliding_position("steel-chest", chest_location, 0, 1)
				chest_inventory = game.surfaces.nauvis.create_entity{name = "steel-chest", position = chest_location, force = game.forces.player}
				inserted = chest_inventory.insert{name = name, count = (count - inserted)}
				if inserted > 0 then
					inventory.remove{name = name, count = inserted}
				end
			end
		end
	end
	game.print("The now banned griefer " .. player_name .. "'s inventory has been returned somewhere near the spawn. Look for one or more steel chests.")
end
--------------------------------------------------------------------------------------
-- Currently console only, as print() is used to print the results
function show_inventory(player_name)
	local success, err = pcall(show_inventory_p, player_name)
	if not success then
		game.print(err)
		return
	end
	if err then
		return
	end
end
function show_inventory_p(player_name)
	local player = game.players[player_name]
	local inventories = {
		main = game.players[player_name].get_inventory(defines.inventory.player_main),
		quickbar = game.players[player_name].get_inventory(defines.inventory.player_quickbar),
		guns = game.players[player_name].get_inventory(defines.inventory.player_guns),
		ammo = game.players[player_name].get_inventory(defines.inventory.player_ammo),
		armor = game.players[player_name].get_inventory(defines.inventory.player_armor),
		tools = game.players[player_name].get_inventory(defines.inventory.player_tools),
		vehicle = game.players[player_name].get_inventory(defines.inventory.player_vehicle),
		trash = game.players[player_name].get_inventory(defines.inventory.player_trash)
	}
	for invname,inventory in pairs(inventories) do
		if not inventory.is_empty() then print("Items in " .. invname .. " inventory:") end
		for name,count in pairs(inventory.get_contents()) do
			print("   " .. name .. " - " .. count)
		end
	end
end
--------------------------------------------------------------------------------------
--This command simply deletes the inventory of the listed player
function delete_inventory(player_name)
	local success, err = pcall(delete_inventory_p, player_name)
	if not success then
		game.print(err)
		return
	end
	if err then
		return
	end
end
function delete_inventory_p(player_name)
	local stolen_inventories = {
		main = game.players[player_name].get_inventory(defines.inventory.player_main),
		quickbar = game.players[player_name].get_inventory(defines.inventory.player_quickbar),
		guns = game.players[player_name].get_inventory(defines.inventory.player_guns),
		ammo = game.players[player_name].get_inventory(defines.inventory.player_ammo),
		armor = game.players[player_name].get_inventory(defines.inventory.player_armor),
		tools = game.players[player_name].get_inventory(defines.inventory.player_tools),
		vehicle = game.players[player_name].get_inventory(defines.inventory.player_vehicle),
		trash = game.players[player_name].get_inventory(defines.inventory.player_trash)
	}
	for _,inventory in pairs(stolen_inventories) do
		for name,count in pairs(inventory.get_contents()) do
			inventory.remove{name = name, count = count}
		end
	end
end
--------------------------------------------------------------------------------------
--Send chat only to a specific force
--name can be either the name of a player or the name of a force
--message is the actual message to send
function force_chat(name, message)
	local force
	if game.players[name] then force = game.players[name].force
	else force = game.forces[name] end
	if force then force.print("[WEB] " .. message) end
end

function print_except(msg, player)
	for _,p in pairs(game.players) do
		if p.connected and p ~= player then
			p.print(msg)
		end
	end
end

function print_admins(msg)
	for _,p in pairs(game.players) do
		if p.connected and p.admin then
			p.print(msg)
		end
	end
end

function check_name(function_name)
	for i,v in pairs(global.scenario.custom_functions) do
		if v.name == function_name:lower() then
			return i
		end
	end
	return false
end

function add_global_event(event, func, name)
	local p = game.player and game.player.print or print
	if not event then p("Missing event parameter") return end
	if not func then p("Missing function parameter") return end
	if not name then p("Missing name parameter") return end
	if check_name(name) then p("Function name \""..name.."\" already in use.") return end
	table.insert(global.scenario.custom_functions, {event = event, name = name, func = func})
	Event.register(event, func)
end

function remove_global_event(name)
	local reg = check_name(name)
	if reg then
		Event.remove(global.scenario.custom_functions[reg].event, global.scenario.custom_functions[reg].func)
		table.remove(global.scenario.custom_functions, reg)
	else
		game.print("Function with name \""..name.."\" not found")
	end
end

Event.register(-2, function()
	for i,v in pairs(global.scenario.custom_functions) do
		Event.register(v.event, v.func)
	end
end)