Fix island distribution again

nc_crystal/init.lua

@@ -74,8 +74,8 @@ nodecore.register_limited_abm({
     label = "Lode Crystal growing",
     nodenames = {ore},
     neighbours = {"group:lava"},
-    interval = 10,
-    chance = 10,
+    interval = 20,
+    chance = 20,
     action = function(pos,node)
       local vdirs = {}
       for _,off in pairs(growdirs) do

nc_sky_isgen/init.lua

@@ -229,9 +229,8 @@ end
 
 local function gen_island_pos(name)
   local x,y,z = 0,0,0
-  x,z = x+math.random(-32,32),z+math.random(-32,32)
-  y=256+math.random(-64,64)
-  local ok = checkpos(x,y,z)
+  x,z = x+math.random(-64,64),z+math.random(-64,64)
+  y=256+math.random(-32,32)
   for k,isl in ipairs(cells) do
     if isl and isl.valid then
       table.remove(cells,k)
@@ -245,9 +244,10 @@ local function gen_island_pos(name)
       return
     end
   end
+  local ok = checkpos(x,y,z)
   while not ok do
-    x,z = x+math.random(-32,32),z+math.random(-32,32)
-    y=256+math.random(-64,64)
+    x,z = x+math.random(-64,64),z+math.random(-64,64)
+    y=256+math.random(-32,32)
     ok = checkpos(x,y,z)
   end
   local ip = {x=x,y=y,z=z}