モジュール:Utility/Library

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local aw = {}

function aw.shallowCopy(obj)
	local typename = type(obj)
	local copy
	if typename == 'table' then
		copy = {}
		for key, value in pairs(obj) do
			copy[key] = value
		end
	else
		copy = obj
	end
    return copy
end

function aw.getAsBoolean(strOrNumOrBool, defaultValue)
	defaultValue = defaultValue or false
	
	local typename = type(strOrNumOrBool)
	if typename == 'boolean' then
		return strOrNumOrBool
	elseif typename == 'number' then
		return strOrNumOrBool ~= 0
	elseif typename == 'string' then
		local str = string.lower(strOrNumOrBool)
		return str == 'true' or str == 't' or str == '1'
	else
		return defaultValue
	end
end

function aw.getAsNumber(strOrNum, defaultValue)
	defaultValue = defaultValue or 0
	
	local typename = type(strOrNum)
	if typename == 'number' then
		return strOrNum
	elseif typename == 'string' then
		return tonumber(strOrNum)
	else
		return defaultValue
	end
end

function aw.round(num)
	return math.floor(tonumber(string.format("%.4f", num)) + 0.5)
end

function aw.roundover(num)
	return math.ceil(tonumber(string.format("%.4f", num)) - 0.5)
end

function aw.selectiveRound(num, useRound)
	if useRound or false then
		return round(num)
	else
		return roundover(num)
	end
end

return aw