Minor tweaks to Freebooter ship cost

[kano-dot]

Aurora.3/maps/_common/mapsystem/map.dm

Lines 309 to 318 in e1226fc

	while ((points > 0 || shippoints > 0) && length(available))
	var/datum/map_template/ruin/away_site/site = pickweight(available)
	if ((site.spawn_cost && site.spawn_cost > points) || (site.player_cost && site.player_cost > players) || (site.ship_cost && site.ship_cost > shippoints))
	unavailable += site
	available -= site
	continue
	var/list/costs = resolve_site_selection(site, selected, available, unavailable, by_type)
	points -= costs[1]
	players -= costs[2]
	shippoints -= costs[3]

Ship cost doesn't play a role here when a map is picked among the candidates pool. There is no reason to not treat a variation ship as a full ship after it's chosen. This was leaving budget points as a decimal number, preventing the loop from ending early before eliminating each candidates.

This doesn't change the outcome but makes it more in line with the intended standard. I had no idea about this at the time when I made freebooter variation (oops)

[kano-dot]

!review