Unit = {
	class = "Unit",
	faction = 0,
	troops = {},
	is_selected = false,
	portrait = nil,
	stat = {
		health = nil,
		speed = nil
	}
}
function Unit:newUnit(name,faction,portrait,stat_table)
	o = {
		-- ids
		name = name,
		faction = faction,
		portrait = love.graphics.newImage(portrait),
		-- stats
		stat = {
			health = stat_table.health,
			speed = stat_table.speed
		}
	}
		
	setmetatable(o, self)
	self.__index = self
	return o
end