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local H_LAG = caverealms.config.h_lag --15 --max height for stalagmites
local H_LAC = caverealms.config.h_lac --20 --...stalactites
local H_CRY = caverealms.config.h_cry --9 --max height of glow crystals
local H_CLAC = caverealms.config.h_clac --13 --max height of glow crystal stalactites
function caverealms:above_solid(x,y,z,area,data)
local c_air = minetest.get_content_id("air")
local ai = area:index(x,y+1,z-3)
if data[ai] == c_air then
return false
else
return true
end
end
function caverealms:below_solid(x,y,z,area,data)
local c_air = minetest.get_content_id("air")
local ai = area:index(x,y-1,z-3)
if data[ai] == c_air then
return false
else
return true
end
end
--stalagmite spawner
function caverealms:stalagmite(x,y,z, area, data)
if not caverealms:below_solid(x,y,z,area,data) then
return
end
--contest ids
local c_stone = minetest.get_content_id("default:stone")
local top = math.random(6,H_LAG) --grab a random height for the stalagmite
for j = 0, top do --y
for k = -3, 3 do
for l = -3, 3 do
if j == 0 then
if k*k + l*l <= 9 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = c_stone
end
elseif j <= top/5 then
if k*k + l*l <= 4 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = c_stone
end
elseif j <= top/5 * 3 then
if k*k + l*l <= 1 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = c_stone
end
else
local vi = area:index(x, y+j, z-3)
data[vi] = c_stone
end
end
end
end
end
--stalactite spawner
function caverealms:stalactite(x,y,z, area, data)
if not caverealms:above_solid(x,y,z,area,data) then
return
end
--contest ids
local c_stone = minetest.get_content_id("default:stone")--("caverealms:limestone")
local bot = math.random(-H_LAC, -6) --grab a random height for the stalagmite
for j = bot, 0 do --y
for k = -3, 3 do
for l = -3, 3 do
if j >= -1 then
if k*k + l*l <= 9 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = c_stone
end
elseif j >= bot/5 then
if k*k + l*l <= 4 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = c_stone
end
elseif j >= bot/5 * 3 then
if k*k + l*l <= 1 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = c_stone
end
else
local vi = area:index(x, y+j, z-3)
data[vi] = c_stone
end
end
end
end
end
--glowing crystal stalagmite spawner
function caverealms:crystal_stalagmite(x,y,z, area, data, biome)
if not caverealms:below_solid(x,y,z,area,data) then
return
end
--contest ids
local c_stone = minetest.get_content_id("default:stone")
local c_crystal = minetest.get_content_id("caverealms:glow_crystal")
local c_crystore = minetest.get_content_id("caverealms:glow_ore")
local c_emerald = minetest.get_content_id("caverealms:glow_emerald")
local c_emore = minetest.get_content_id("caverealms:glow_emerald_ore")
local c_mesecry = minetest.get_content_id("caverealms:glow_mese")
local c_meseore = minetest.get_content_id("default:stone_with_mese")
local c_ruby = minetest.get_content_id("caverealms:glow_ruby")
local c_rubore = minetest.get_content_id("caverealms:glow_ruby_ore")
local c_ameth = minetest.get_content_id("caverealms:glow_amethyst")
local c_amethore = minetest.get_content_id("caverealms:glow_amethyst_ore")
local c_ice = minetest.get_content_id("default:ice")
local c_thinice = minetest.get_content_id("caverealms:thin_ice")
--for randomness
local mode = 1
if math.random(15) == 1 then
mode = 2
end
if biome == 3 then
if math.random(25) == 1 then
mode = 2
else
mode = 1
end
end
if biome == 4 or biome == 5 then
if math.random(3) == 1 then
mode = 2
end
end
local stalids = {
{ {c_crystore, c_crystal}, {c_emore, c_emerald} },
{ {c_emore, c_emerald}, {c_crystore, c_crystal} },
{ {c_emore, c_emerald}, {c_meseore, c_mesecry} },
{ {c_ice, c_thinice}, {c_crystore, c_crystal}},
{ {c_ice, c_thinice}, {c_crystore, c_crystal}},
{ {c_rubore, c_ruby}, {c_meseore, c_mesecry}},
{ {c_crystore, c_crystal}, {c_rubore, c_ruby} },
{ {c_rubore, c_ruby}, {c_emore, c_emerald}},
{ {c_amethore, c_ameth}, {c_meseore, c_mesecry} },
}
local nid_a
local nid_b
local nid_s = c_stone --stone base, will be rewritten to ice in certain biomes
if biome > 3 and biome < 6 then
if mode == 1 then
nid_a = c_ice
nid_b = c_thinice
nid_s = c_ice
else
nid_a = c_crystore
nid_b = c_crystal
end
elseif mode == 1 then
nid_a = stalids[biome][1][1]
nid_b = stalids[biome][1][2]
else
nid_a = stalids[biome][2][1]
nid_b = stalids[biome][2][2]
end
local top = math.random(5,H_CRY) --grab a random height for the stalagmite
for j = 0, top do --y
for k = -3, 3 do
for l = -3, 3 do
if j == 0 then
if k*k + l*l <= 9 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = nid_s
end
elseif j <= top/5 then
if k*k + l*l <= 4 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = nid_a
end
elseif j <= top/5 * 3 then
if k*k + l*l <= 1 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = nid_b
end
else
local vi = area:index(x, y+j, z-3)
data[vi] = nid_b
end
end
end
end
end
--crystal stalactite spawner
function caverealms:crystal_stalactite(x,y,z, area, data, biome)
if not caverealms:above_solid(x,y,z,area,data) then
return
end
--contest ids
local c_stone = minetest.get_content_id("default:stone")
local c_crystore = minetest.get_content_id("caverealms:glow_ore")
local c_crystal = minetest.get_content_id("caverealms:glow_crystal")
local c_emerald = minetest.get_content_id("caverealms:glow_emerald")
local c_emore = minetest.get_content_id("caverealms:glow_emerald_ore")
local c_mesecry = minetest.get_content_id("caverealms:glow_mese")
local c_meseore = minetest.get_content_id("default:stone_with_mese")
local c_ruby = minetest.get_content_id("caverealms:glow_ruby")
local c_rubore = minetest.get_content_id("caverealms:glow_ruby_ore")
local c_ameth = minetest.get_content_id("caverealms:glow_amethyst")
local c_amethore = minetest.get_content_id("caverealms:glow_amethyst_ore")
local c_ice = minetest.get_content_id("default:ice")
local c_thinice = minetest.get_content_id("caverealms:hanging_thin_ice")
--for randomness
local mode = 1
if math.random(15) == 1 then
mode = 2
end
if biome == 3 then
if math.random(25) == 1 then
mode = 2
else
mode = 1
end
end
if biome == 4 or biome == 5 then
if math.random(3) == 1 then
mode = 2
end
end
local stalids = {
{ {c_crystore, c_crystal}, {c_emore, c_emerald} },
{ {c_emore, c_emerald}, {c_crystore, c_crystal} },
{ {c_emore, c_emerald}, {c_meseore, c_mesecry} },
{ {c_ice, c_thinice}, {c_crystore, c_crystal}},
{ {c_ice, c_thinice}, {c_crystore, c_crystal}},
{ {c_rubore, c_ruby}, {c_meseore, c_mesecry}},
{ {c_crystore, c_crystal}, {c_rubore, c_ruby} },
{ {c_rubore, c_ruby}, {c_emore, c_emerald}},
{ {c_amethore, c_ameth}, {c_meseore, c_mesecry} },
}
local nid_a
local nid_b
local nid_s = c_stone --stone base, will be rewritten to ice in certain biomes
if biome > 3 and biome < 6 then
if mode == 1 then
nid_a = c_ice
nid_b = c_thinice
nid_s = c_ice
else
nid_a = c_crystore
nid_b = c_crystal
end
elseif mode == 1 then
nid_a = stalids[biome][1][1]
nid_b = stalids[biome][1][2]
else
nid_a = stalids[biome][2][1]
nid_b = stalids[biome][2][2]
end
local bot = math.random(-H_CLAC, -6) --grab a random height for the stalagmite
for j = bot, 0 do --y
for k = -3, 3 do
for l = -3, 3 do
if j >= -1 then
if k*k + l*l <= 9 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = nid_s
end
elseif j >= bot/5 then
if k*k + l*l <= 4 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = nid_a
end
elseif j >= bot/5 * 3 then
if k*k + l*l <= 1 then
local vi = area:index(x+k, y+j, z+l-3)
data[vi] = nid_b
end
else
local vi = area:index(x, y+j, z-3)
data[vi] = nid_b
end
end
end
end
end
--glowing crystal stalagmite spawner
function caverealms:salt_stalagmite(x,y,z, area, data, biome)
if not caverealms:below_solid(x,y,z,area,data) then
return
end
--contest ids
local c_stone = minetest.get_content_id("default:stone")
local c_salt = minetest.get_content_id("caverealms:salt_crystal")
local scale = math.random(2, 4)
if scale == 2 then
for j = -3, 3 do
for k = -3, 3 do
local vi = area:index(x+j, y, z+k)
data[vi] = c_stone
if math.abs(j) ~= 3 and math.abs(k) ~= 3 then
local vi = area:index(x+j, y+1, z+k)
data[vi] = c_stone
end
end
end
else
for j = -4, 4 do
for k = -4, 4 do
local vi = area:index(x+j, y, z+k)
data[vi] = c_stone
if math.abs(j) ~= 4 and math.abs(k) ~= 4 then
local vi = area:index(x+j, y+1, z+k)
data[vi] = c_stone
end
end
end
end
for j = 2, scale + 2 do --y
for k = -2, scale - 2 do
for l = -2, scale - 2 do
local vi = area:index(x+k, y+j, z+l)
data[vi] = c_salt -- make cube
end
end
end
end
--function to create giant 'shrooms
function caverealms:giant_shroom(x, y, z, area, data)
if not caverealms:below_solid(x,y,z,area,data) then
return
end
local c_cap
local c_stem
--as usual, grab the content ID's
if minetest.get_modpath("ethereal") then
c_stem = minetest.get_content_id("ethereal:mushroom_trunk")
c_cap = minetest.get_content_id("ethereal:mushroom")
else
c_stem = minetest.get_content_id("caverealms:mushroom_stem")
c_cap = minetest.get_content_id("caverealms:mushroom_cap")
end
local c_gills = minetest.get_content_id("caverealms:mushroom_gills")
z = z - 5
--cap
for k = -5, 5 do
for l = -5, 5 do
if k*k + l*l <= 25 then
local vi = area:index(x+k, y+5, z+l)
data[vi] = c_cap
end
if k*k + l*l <= 16 then
local vi = area:index(x+k, y+6, z+l)
data[vi] = c_cap
vi = area:index(x+k, y+5, z+l)
data[vi] = c_gills
end
if k*k + l*l <= 9 then
local vi = area:index(x+k, y+7, z+l)
data[vi] = c_cap
end
if k*k + l*l <= 4 then
local vi = area:index(x+k, y+8, z+l)
data[vi] = c_cap
end
end
end
--stem
for j = 0, 5 do
for k = -1,1 do
local vi = area:index(x+k, y+j, z)
data[vi] = c_stem
if k == 0 then
local ai = area:index(x, y+j, z+1)
data[ai] = c_stem
ai = area:index(x, y+j, z-1)
data[ai] = c_stem
end
end
end
end
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