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minetest-caverealms
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Allowed for variable cave size and rarity. 

Use the CLUSAV and CLUSAM constants at the start to adjust.
master
Chris N 2014-06-30 18:28:30 -10:00
parent b52da30429
commit d310d2a198
1 changed files with 9 additions and 5 deletions
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14
init.lua
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@ -25,11 +25,13 @@ local ZMIN = -33000
local ZMAX = 33000
local CHUINT = caverealms.config.chuint -- Chunk interval for cave realms
local WAVAMP = 16 -- Structure wave amplitude
local CLUSAV = -0.5 --cave threshold, determines rarity of caves. -1 = small and rare, 0.5 = default, 0 = nearly half the volume.
local CLUSAM = 0.5 --cave size/density threshold. 0 is off, or little variation, 1 is max.
local WAVAMP = 24 -- Structure wave amplitude
local HISCAL = 32 -- Upper structure vertical scale
local LOSCAL = 32 -- Lower structure vertical scale
local HIEXP = 0.5 -- Upper structure density gradient exponent
local LOEXP = 0.5 -- Lower structure density gradient exponent
local HIEXP = 0.3 -- Upper structure density gradient exponent
local LOEXP = 0.3 -- Lower structure density gradient exponent
local DIRTHR = 0.04 -- Dirt density threshold
local STOTHR = 0.08 -- Stone density threshold
local STABLE = 2 -- Minimum number of stacked stone nodes in column for dirt / sand on top
@ -197,7 +199,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
else
grad = ((cavemid - y) / LOSCAL) ^ LOEXP --for the floor
end
local density = nvals_cave[nixyz] - grad --how dense is the emptiness?
--local density = nvals_cave[nixyz] - grad --how dense is the emptiness?
local density = nvals_cave[nixyz] - grad - CLUSAV - nvals_cluster[nixyz] * CLUSAM
if density < 0 and density > -0.7 then -- if cavern "shell"
--local nodename = minetest.get_node({x=x,y=y,z=z}).name --grab the name of the node
data[vi] = c_air --make emptiness
@ -302,7 +305,8 @@ minetest.register_on_generated(function(minp, maxp, seed)
else
grad = ((cavemid - y) / LOSCAL) ^ LOEXP --for the floor
end
local density = nvals_cave[nixyz2] - grad --how dense is the emptiness?
--local density = nvals_cave[nixyz2] - grad --how dense is the emptiness?
local density = nvals_cave[nixyz2] - grad - CLUSAV - nvals_cluster[nixyz2] * CLUSAM
if density < 0 and density > -0.7 then -- if cavern "shell"
if density < STOTHR and stable2[si] <= STABLE then
roof[si] = roof[si] + 1