68 lines
2.1 KiB
Lua
68 lines
2.1 KiB
Lua
local adjacents = {
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vector.new(1,0,0),
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vector.new(-1,0,0),
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vector.new(0,0,1),
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vector.new(0,0,-1),
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vector.new(0,1,0),
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vector.new(0,-1,0)
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}
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local function makegeode(pos,pr)
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local size = pr:next(2,8)
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local p1 = vector.offset(pos,-size,-size,-size)
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local p2 = vector.offset(pos,size,size,size)
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local nn = minetest.find_nodes_in_area(p1,p2,{"group:material_stone"})
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table.sort(nn,function(a, b)
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return vector.distance(pos, a) < vector.distance(pos, b)
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end)
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if not nn[1] then return end
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for i=1,math.random(#nn) do
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minetest.set_node(nn[i],{name="mcl_amethyst:amethyst_block"})
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end
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local nnn = minetest.find_nodes_in_area(p1,p2,{"mcl_amethyst:amethyst_block"})
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for k,v in pairs(nnn) do
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local all_amethyst = true
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for kk,vv in pairs(adjacents) do
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local pp = vector.add(v,vv)
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local an = minetest.get_node(pp)
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if an.name ~= "mcl_amethyst:amethyst_block" then
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if minetest.get_item_group(an.name,"material_stone") > 0 then
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minetest.set_node(pp,{name="mcl_amethyst:calcite"})
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if pr:next(1,5) == 1 then
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minetest.set_node(v,{name="mcl_amethyst:budding_amethyst_block"})
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end
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all_amethyst = false
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elseif an.name ~= "mcl_amethyst:amethyst_block" and an.name ~= "air" then
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all_amethyst = false
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end
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end
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end
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if all_amethyst then minetest.set_node(v,{name="air"}) end
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end
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local nnnn = minetest.find_nodes_in_area_under_air(p1,p2,{"mcl_amethyst:amethyst_block"})
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for k,v in pairs(nnnn) do
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local r = pr:next(1,50)
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if r < 10 then
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minetest.set_node(vector.offset(v,0,1,0),{name="mcl_amethyst:amethyst_cluster",param2=1})
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end
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end
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end
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mcl_structures.register_structure("geode",{
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place_on = {"mcl_core:stone"},
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spawn_by = {"air"},
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num_spawn_by = 2,
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fill_ratio = 0.002,
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flags = "place_center_x, place_center_z, force_placement",
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biomes = ocean_biomes,
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y_max = mcl_vars.mg_overworld_max,
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y_min = mcl_vars.mg_overworld_min,
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filenames = schems,
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y_offset = function(pr) return pr:next(-4,-2) end,
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place_func = function(pos,def,pr)
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local p = vector.new(pos.x + pr:next(-30,30),pos.y,pos.z + pr:next(-30,30))
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makegeode(pos,pr)
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end,
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})
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