Module:TAMNAMS: Difference between revisions

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 -- Module for TAMNAMS-related things as it pertains to mosses
+-- This module is meant to be used with other modules, not as part of a template
 -- Work in progress
 local mos = require('Module:MOS')
+local rat = require('Module:Rational')
 local p = {}
@@ Line 209: / Line 211: @@
 end
-function p.lookup_named_ancestor(input_mos)
+-- Function for looking up a step ratio range
+-- Module:Rational is used to help simplify ratios
+function p.lookup_step_ratio(step_ratio, use_extended)
+	local step_ratio = step_ratio or rat.new(2, 1)
+	local use_extended = use_extended == true
+	-- Produce the key needed to lookup the step ratio name
+	-- use_extended is used to toggle between central range and extended range
+	local key = rat.as_ratio(step_ratio, ':')
+	if use_extended then
+		return p.tamnams_ratios_ext[key]
+	else
+		return p.tamnams_ratios[key]
+	end
+end
+-- Function for looking up a step ratio range
+-- Module:Rational is used to help simplify ratios
+function p.lookup_step_ratio_range(step_ratio_1, step_ratio_2, use_extended)
+	local step_ratio_1 = step_ratio_1 or rat.new(1, 0)
+	local step_ratio_2 = step_ratio_2 or rat.new(2, 1)
+	local use_extended = use_extended == true
+	-- Produce the key needed for the lookup table as a/b to c/d
+	-- Swap ratios if ratio 1 has a higher hardness than ratio 2
+	local key = ""
+	local float_1 = rat.as_float(step_ratio_1)
+	local float_2 = rat.as_float(step_ratio_2)
+	if (float_1 > float_2) then
+		key = string.format('%s to %s', rat.as_ratio(step_ratio_2, ':'), rat.as_ratio(step_ratio_1, ':'))
+	else
+		key = string.format('%s to %s', rat.as_ratio(step_ratio_1, ':'), rat.as_ratio(step_ratio_2, ':'))
+	end
+	-- use_extended is used to toggle between central range and extended range
+	if use_extended then
+		return p.tamnams_ranges_ext[key]
+	else
+		return p.tamnams_ranges[key]
+	end
 end
-function p.lookup_step_ratio(step_ratio)
+function p.lookup_named_ancestor(input_mos)
 end
-function p.lookup_step_ratio_range(step_ratio)
+function p.tester()
+	return p.lookup_step_ratio_range(rat.new(10, 1), rat.new(1, 0), true)
 end
 return p