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------------------------------------------------------------------------------
-- minimum_map_area.lua: Constants and a function to enforce minimum map size.
--
------------------------------------------------------------------------------
minimum_map_area = {}
--
-- The minimum area for each map type
--
minimum_map_area.BASE_AREA = 10
minimum_map_area.CORRIDORS = minimum_map_area.BASE_AREA * 0.75
minimum_map_area.ROOMS = minimum_map_area.BASE_AREA
minimum_map_area.PASSAGES = minimum_map_area.BASE_AREA
minimum_map_area.NARROW_CAVES = minimum_map_area.BASE_AREA
minimum_map_area.OPEN_CAVES = minimum_map_area.BASE_AREA * 1.5
minimum_map_area.CITY = minimum_map_area.BASE_AREA * 2
minimum_map_area.OPEN = minimum_map_area.BASE_AREA * 2
minimum_map_area.DIVISIONS = minimum_map_area.BASE_AREA * 1.5
minimum_map_area.SWAMP = minimum_map_area.BASE_AREA
--
-- is_map_big_enough
--
-- This function returns whether the map is big enough to be a
-- map of the specified type.
--
-- Parameter(s):
-- -> e: A reference to the global environment. Pass in _G
-- -> min_pct: The minimum area as a percentage of grid area for this map type
-- Defaults to BASE_AREA
-- -> floor: The glyphs to treat as floor glyphs
-- Defaults to ".{([})]<>"
--
-- Returns: true if the map is large enough, false otherwise.
--
minimum_map_area.is_map_big_enough = function (e, min_pct, floor)
if min_pct == nil then
min_pct = BASE_AREA
end
if floor == nil then
floor = ".{([})]<>"
end
local min_area = (min_pct * e.width() * e.height()) / 100
return e.count_feature_in_box { feat = floor } > min_area
end
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