function normalize(val, min, max)
	local d = 100*(val-min)/(max-min)
	if d < 0 then
		return 0
	end
	return d

--[[
	if val > 100 then
		val = 100
	elseif val < 1 then
		val  = 1
	end

	return val
	]]
end

function normalizeMP(val)
	if val > 100 then
		val = 100
	elseif val < 1 then
		val  = 1
	end

	return val
end

function read_if_exist(section, value, default)
		local ltx = system_ini()
		if ltx:section_exist(section) and ltx:line_exist(section,value) then
		return ltx:r_float(section,value)
	else
		return default
	end
end

function read_float(wpn_section, upgr_sections, param)
	local ltx = system_ini()
		local res = ltx:r_float(wpn_section, param)

	if upgr_sections == nil or upgr_sections == "" then
				return res
		end

	for k, sect in pairs(parse_names(upgr_sections)) do
		if param == "hit_power" then
			if res < read_if_exist(sect, param, 0) then
				res = read_if_exist(sect, param, 0)
			end
		else
			res = res + read_if_exist(sect, param, 0)
		end
		end

		return res
end

function GetRPM(wpn_section, upgr_sections) --' скорострельность
	local rpm = read_float(wpn_section, upgr_sections, "rpm")
	return normalize(rpm, 0, 1150)
end

function GetDamage(wpn_section, upgr_sections) --' повреждение
	local hit_power = read_float(wpn_section, upgr_sections, "hit_power")
	return normalize(hit_power, 0, 0.9)
end

function GetDamageMP(wpn_section, upgr_sections) -- ??? (повреждениеMP)
	local hit_power = read_float(wpn_section, upgr_sections, "hit_power")
	hit_power = hit_power * 100
	-- if val < 1.05 then
		-- val = val*100-30
	-- else
		-- val = 75 + math.pow(val/4,2)*25
	-- end
	return normalizeMP(hit_power)
end

function GetHandling(wpn_section, upgr_sections) --' удобность
	local ltx = system_ini()
	-- local val
		local crosshair_inertion = 1
	if ltx:line_exist(wpn_section,"crosshair_inertion") then
		crosshair_inertion = read_float(wpn_section, upgr_sections, "crosshair_inertion")
	end

	crosshair_inertion = 11.9 - crosshair_inertion
	return normalize(crosshair_inertion, 0, 10.5)
end

function GetAccuracy(wpn_section, upgr_sections) --' точность
		local fire_dispersion_base	= read_float(wpn_section, upgr_sections, "fire_dispersion_base")
	fire_dispersion_base = 0.85 - fire_dispersion_base
	return normalize(fire_dispersion_base, 0.375, 0.8)
end