simpify ore_chance setting

README.md

@@ -23,7 +23,7 @@ See the comments in this file for how to adjust:
 2. Whether map-generation is currently active for individual layers.
 3. Whether player gravity changes for each layer (off by default).
 4. Whether crafting recipes are enabled.
-5. Multiply ore chance within asteroids (default is 0.0), 0.5 doubles chance, 2 halves.
+5. Set the chance of finding ores in asteroids (default is 27 [0 to 100]).
 
 Note: It is advised to turn off map-generation after you have generated the required number of asteroids.
 

asteroid_layer_helpers.lua

@@ -17,7 +17,7 @@ local ICET = 0.05 -- Comet ice threshold
 local ATMOT = -0.2 -- Comet atmosphere threshold
 local FISTS = 0.01 -- Fissure noise threshold at surface. Controls size of fissures and amount / size of fissure entrances
 local FISEXP = 0.3 -- Fissure expansion rate under surface
-local ORECHA = 3*3*3 -- Ore 1/x chance per stone node
+local ORECHA = otherworlds.settings.ore_chance.value -- Ore 1/x chance per stone node
 local CPCHU = 0 -- Maximum craters per chunk
 local CRMIN = 5 -- Crater radius minimum, radius includes dust and obsidian layers
 local CRRAN = 8 -- Crater radius range
@@ -26,10 +26,6 @@ local random = math.random
 local floor = math.floor
 local abs = math.abs
 
--- check setting for anything other than 0 and amend if needed
-if otherworlds.settings.ore_chance.value ~= 0 then
-	ORECHA = ORECHA * otherworlds.settings.ore_chance.value
-end
 
 -- Note: for fewer large objects: increase the 'spread' numbers in 'np_large' noise parameters. For fewer small objects do the same in 'np_small'. Then tune size with 'ASCOT'
 
@@ -199,7 +195,7 @@ function otherworlds.asteroids.create_on_generated(ymin, ymax, content_ids)
 						if noise1dep >= STOT or noise4dep >= STOT then
 
 							-- stone/ores
-							if random(ORECHA) == 2 then
+							if random(ORECHA) == 1 then
 
 								if nvals5[ni] > 0.6 then
 									data[vi] = c_goldore

settings.lua

@@ -39,5 +39,5 @@ otherworlds.settings.gravity = {
 -- increase or decrease change of ores appearing in asteroids
 otherworlds.settings.ore_chance = {
 	-- default ore chance is multiplied by following value
-	value = tonumber(minetest.settings:get("otherworlds.ore_chance") or 0)
+	value = tonumber(minetest.settings:get("otherworlds.ore_chance") or 27)
 }

settingtypes.txt

@@ -10,4 +10,4 @@ otherworlds.redsky.ymax (Redsky asteroid max height) int 7000
 
 otherworlds.gravity (Enable gravity) bool false
 
-otherworlds.ore_chance (Multiply ore chance by) float 0
+otherworlds.ore_chance (Chance of finding ores) int 27