From 133e66ad38389b4c500e7f90a2b548624ef5fa3e Mon Sep 17 00:00:00 2001
From: Milan* <tchncs@vivaldi.net>
Date: Fri, 17 Mar 2017 21:31:17 +0100
Subject: [PATCH] adjust depth levels, don't disable caves

---
 cavegen.lua | 9 ++++++---
 deco.lua    | 9 +++++----
 init.lua    | 2 +-
 mapgen.lua  | 2 +-
 4 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/cavegen.lua b/cavegen.lua
index 5966bf2..c6c72cd 100644
--- a/cavegen.lua
+++ b/cavegen.lua
@@ -4,7 +4,7 @@
 
 
 fun_caves_mod.cave_width = 0.05  -- figurative width
-local max_depth = 31000
+local max_depth = -28000
 
 
 fun_caves_mod.cave_noise_1 = {offset = 0, scale = 1, seed = 3901, spread = {x = 40, y = 10, z = 40}, octaves = 3, persist = 1, lacunarity = 2}
@@ -16,8 +16,11 @@ fun_caves_mod.cavegen = function(minp, maxp, data, area, node, heightmap)
 	if not (minp and maxp and data and area and node and type(data) == 'table') then
 		return
 	end
-
-	local csize = vector.add(vector.subtract(maxp, minp), 1)
+    
+    local temp_y = (minp.y+maxp.y)/2
+    if temp_y > -28000 or temp_y < -30999 then return end
+	
+    local csize = vector.add(vector.subtract(maxp, minp), 1)
 	local map_max = {x = csize.x, y = csize.y + 2, z = csize.z}
 	local map_min = {x = minp.x, y = minp.y - 1, z = minp.z}
 
diff --git a/deco.lua b/deco.lua
index efde596..520bb70 100644
--- a/deco.lua
+++ b/deco.lua
@@ -7,11 +7,10 @@ dofile(fun_caves_mod.path .. "/nodes.lua")
 dofile(fun_caves_mod.path .. "/fungal_tree.lua")
 
 
-local deco_depth = -30  -- place cave stuff this far beneath the surface
+local deco_depth = -5  -- place cave stuff this far beneath the surface
 local water_level = 1
-local fluid_compression = -200  -- the depth to start planting lava/water
-local max_depth = 31000
-
+local fluid_compression = -22000  -- the depth to start planting lava/water
+local max_depth = -27960
 
 local csize
 local node_match_cache = {}
@@ -25,6 +24,8 @@ fun_caves_mod.decogen = function(minp, maxp, data, area, node, heightmap)
 	if not (minp and maxp and data and area and node and type(data) == 'table' and fun_caves_mod.cave_biomes and fun_caves_mod.make_fungal_tree) then
 		return
 	end
+    local temp_y = (minp.y+maxp.y)/2
+    if temp_y > -28000 or temp_y < -30999 then return end
 
 	csize = vector.add(vector.subtract(maxp, minp), 1)
 
diff --git a/init.lua b/init.lua
index 39a38a2..6a34159 100644
--- a/init.lua
+++ b/init.lua
@@ -24,7 +24,7 @@ end
 
 minetest.register_on_mapgen_init(function(mgparams)
 	--minetest.set_mapgen_setting('mg_flags', "nocaves, nodungeons", true)
-	minetest.set_mapgen_setting('mg_flags', "nocaves", true)
+	--minetest.set_mapgen_setting('mg_flags', "nocaves", true)
 end)
 
 
diff --git a/mapgen.lua b/mapgen.lua
index f14d6a4..5afce72 100644
--- a/mapgen.lua
+++ b/mapgen.lua
@@ -4,7 +4,7 @@
 
 
 local DEBUG
-local max_depth = 31000
+local max_depth = -28000
 local seed_noise = {offset = 0, scale = 32768, seed = 5202, spread = {x = 80, y = 80, z = 80}, octaves = 2, persist = 0.4, lacunarity = 2}
 fun_caves_mod.use_bi_hi = true