386 lines
14 KiB
Lua
386 lines
14 KiB
Lua
local c_water = minetest.get_content_id("default:water_source")
|
|
local c_air = minetest.get_content_id("air")
|
|
local c_dirt = minetest.get_content_id("default:dirt")
|
|
local c_dirt_moss = minetest.get_content_id("df_mapitems:dirt_with_cave_moss")
|
|
local c_gravel = minetest.get_content_id("default:gravel")
|
|
|
|
local c_stillworm = minetest.get_content_id("df_mapitems:dirt_with_stillworm")
|
|
local c_pebble_fungus = minetest.get_content_id("df_mapitems:dirt_with_pebble_fungus")
|
|
|
|
local c_wet_flowstone = minetest.get_content_id("df_mapitems:wet_flowstone")
|
|
local c_dry_flowstone = minetest.get_content_id("df_mapitems:dry_flowstone")
|
|
|
|
local c_veinstone = minetest.get_content_id("df_mapitems:veinstone")
|
|
local wall_vein_perlin_params = {
|
|
offset = 0,
|
|
scale = 1,
|
|
spread = {x = 50, y = 50, z = 50},
|
|
seed = 2199,
|
|
octaves = 3,
|
|
persist = 0.63,
|
|
lacunarity = 2.0,
|
|
flags = "eased",
|
|
}
|
|
|
|
local c_pearls = minetest.get_content_id("df_mapitems:cave_pearls")
|
|
|
|
local subsea_level = df_caverns.config.level2_min - (df_caverns.config.level2_min - df_caverns.config.level1_min) * 0.33 -- "sea level" for the flooded caverns.
|
|
local flooding_threshold = math.min(df_caverns.config.tunnel_flooding_threshold, df_caverns.config.cavern_threshold) -- cavern value out to which we're flooding tunnels and warrens
|
|
|
|
local get_biome = function(heat, humidity)
|
|
if humidity < 23 then -- about 20% of locations fall below this threshold
|
|
return "barren"
|
|
elseif heat < 40 then
|
|
return "goblincap" -- about 33% are below this threshold
|
|
elseif heat < 60 then
|
|
return "sporetree" -- another 33%
|
|
else
|
|
return "tunneltube"
|
|
end
|
|
end
|
|
|
|
local goblin_cap_shrublist
|
|
local tunnel_tube_shrublist
|
|
local spore_tree_shrublist
|
|
|
|
if minetest.get_modpath("df_farming") then
|
|
goblin_cap_shrublist = {
|
|
df_farming.spawn_plump_helmet_vm,
|
|
df_farming.spawn_plump_helmet_vm,
|
|
df_farming.spawn_dead_fungus_vm,
|
|
df_farming.spawn_cavern_fungi_vm,
|
|
}
|
|
tunnel_tube_shrublist = {
|
|
df_farming.spawn_sweet_pod_vm,
|
|
df_farming.spawn_cave_wheat_vm,
|
|
df_farming.spawn_cave_wheat_vm,
|
|
df_farming.spawn_dead_fungus_vm,
|
|
df_farming.spawn_cavern_fungi_vm,
|
|
}
|
|
spore_tree_shrublist = {
|
|
df_farming.spawn_pig_tail_vm,
|
|
df_farming.spawn_pig_tail_vm,
|
|
df_farming.spawn_cave_wheat_vm,
|
|
df_farming.spawn_dead_fungus_vm,
|
|
df_farming.spawn_cavern_fungi_vm,
|
|
}
|
|
end
|
|
|
|
local c_red = minetest.get_content_id("df_trees:spindlestem_cap_red")
|
|
|
|
local goblin_cap_cavern_floor = function(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
local ystride = area.ystride
|
|
if abs_cracks < 0.1 then
|
|
df_caverns.stalagmites(abs_cracks, vert_rand, vi, area, data, data_param2, true)
|
|
elseif data[vi-ystride] ~= c_air then -- leave the ground as rock if it's only one node thick
|
|
if math.random() < 0.25 then
|
|
data[vi] = c_dirt
|
|
else
|
|
data[vi] = c_dirt_moss
|
|
end
|
|
if math.random() < 0.1 then
|
|
df_caverns.place_shrub(vi+ystride, area, data, data_param2, goblin_cap_shrublist)
|
|
elseif math.random() < 0.02 then
|
|
df_trees.spawn_spindlestem_vm(vi+ystride, area, data, data_param2, c_red)
|
|
elseif math.random() < 0.015 then
|
|
df_trees.spawn_goblin_cap_vm(vi+ystride, area, data, data_param2)
|
|
end
|
|
end
|
|
|
|
end
|
|
|
|
local spore_tree_cavern_floor = function(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
local ystride = area.ystride
|
|
if abs_cracks < 0.1 then
|
|
df_caverns.stalagmites(abs_cracks, vert_rand, vi, area, data, data_param2, true)
|
|
elseif data[vi-ystride] ~= c_air then -- leave the ground as rock if it's only one node thick
|
|
if math.random() < 0.25 then
|
|
data[vi] = c_dirt
|
|
else
|
|
data[vi] = c_pebble_fungus
|
|
end
|
|
if math.random() < 0.1 then
|
|
df_caverns.place_shrub(vi+ystride, area, data, data_param2, spore_tree_shrublist)
|
|
elseif math.random() < 0.05 then
|
|
df_trees.spawn_spore_tree_vm(vi+ystride, area, data, data_param2)
|
|
end
|
|
end
|
|
end
|
|
|
|
|
|
local tunnel_tube_cavern_floor = function(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
local ystride = area.ystride
|
|
if abs_cracks < 0.1 then
|
|
df_caverns.stalagmites(abs_cracks, vert_rand, vi, area, data, data_param2, true)
|
|
elseif data[vi-ystride] ~= c_air then -- leave the ground as rock if it's only one node thick
|
|
if math.random() < 0.25 then
|
|
data[vi] = c_dirt
|
|
else
|
|
data[vi] = c_stillworm
|
|
end
|
|
if math.random() < 0.1 then
|
|
df_caverns.place_shrub(vi+ystride, area, data, data_param2, tunnel_tube_shrublist)
|
|
elseif math.random() < 0.05 then
|
|
df_trees.spawn_tunnel_tube_vm(vi+ystride, area, data, data_param2)
|
|
end
|
|
end
|
|
end
|
|
|
|
local decorate_level_2 = function(minp, maxp, seed, vm, node_arrays, area, data)
|
|
math.randomseed(minp.x + minp.y*2^8 + minp.z*2^16 + seed) -- make decorations consistent between runs
|
|
|
|
local heatmap = minetest.get_mapgen_object("heatmap")
|
|
local humiditymap = minetest.get_mapgen_object("humiditymap")
|
|
local data_param2 = df_caverns.data_param2
|
|
vm:get_param2_data(data_param2)
|
|
local nvals_cracks = mapgen_helper.perlin2d("df_cavern:cracks", minp, maxp, df_caverns.np_cracks)
|
|
local nvals_cave = node_arrays.nvals_cave
|
|
local cave_area = node_arrays.cave_area
|
|
local cavern_def = node_arrays.cavern_def
|
|
|
|
local vein_noise
|
|
local vein_area
|
|
|
|
-- Partly fill flooded caverns and warrens
|
|
for vi, x, y, z in area:iterp_yxz(area.MinEdge, area.MaxEdge) do
|
|
local cave_val = nvals_cave[vi]
|
|
if cave_val < -flooding_threshold then
|
|
if mapgen_helper.is_pos_within_box({x=x, y=y, z=z}, minp, maxp) then
|
|
local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
|
|
local biome_name = get_biome(heatmap[index2d], humiditymap[index2d])
|
|
local cave_threshold = cavern_def.cave_threshold
|
|
|
|
--check if we're just inside the boundary of the (negazone) cavern threshold
|
|
if biome_name == "barren" and cave_val < -cave_threshold and cave_val > -cave_threshold - 0.01 then
|
|
-- add giant rooty structures to the flooded barren caverns
|
|
if vein_noise == nil then
|
|
vein_noise, vein_area = mapgen_helper.perlin3d("df_caverns:wall_veins", minp, maxp, wall_vein_perlin_params)
|
|
end
|
|
if data[vi] == c_air and math.abs(vein_noise[vein_area:transform(area, vi)]) < 0.02 then
|
|
data[vi] = c_veinstone
|
|
end
|
|
end
|
|
end
|
|
if data[vi] == c_air and y <= subsea_level then
|
|
data[vi] = c_water -- otherwise, fill air with water when below sea level
|
|
end
|
|
end
|
|
end
|
|
|
|
---------------------------------------------------------
|
|
-- Cavern floors
|
|
|
|
for _, vi in ipairs(node_arrays.cavern_floor_nodes) do
|
|
local vert_rand = mapgen_helper.xz_consistent_randomi(area, vi)
|
|
local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
|
|
local biome_name = get_biome(heatmap[index2d], humiditymap[index2d])
|
|
local abs_cracks = math.abs(nvals_cracks[index2d])
|
|
local flooded_caverns = nvals_cave[vi] < 0 -- this indicates if we're in the "flooded" set of caves or not.
|
|
|
|
if minp.y < subsea_level and area:get_y(vi) < subsea_level and flooded_caverns then
|
|
-- underwater floor
|
|
df_caverns.flooded_cavern_floor(abs_cracks, vert_rand, vi, area, data)
|
|
elseif biome_name == "barren" then
|
|
if flooded_caverns then
|
|
df_caverns.wet_cavern_floor(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
else
|
|
df_caverns.dry_cavern_floor(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
end
|
|
elseif biome_name == "goblincap" then
|
|
goblin_cap_cavern_floor(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
elseif biome_name == "sporetree" then
|
|
spore_tree_cavern_floor(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
elseif biome_name == "tunneltube" then
|
|
tunnel_tube_cavern_floor(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
end
|
|
end
|
|
|
|
--------------------------------------
|
|
-- Cavern ceilings
|
|
|
|
for _, vi in ipairs(node_arrays.cavern_ceiling_nodes) do
|
|
local vert_rand = mapgen_helper.xz_consistent_randomi(area, vi)
|
|
local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
|
|
local biome_name = get_biome(heatmap[index2d], humiditymap[index2d])
|
|
local abs_cracks = math.abs(nvals_cracks[index2d])
|
|
local flooded_caverns = nvals_cave[vi] < 0 -- this indicates if we're in the "flooded" set of caves or not.
|
|
|
|
if flooded_caverns and minp.y < subsea_level and area:get_y(vi) < subsea_level then
|
|
-- underwater ceiling, do nothing
|
|
elseif biome_name == "barren" then
|
|
if flooded_caverns then
|
|
-- wet barren
|
|
if abs_cracks < 0.1 then
|
|
df_caverns.stalactites(abs_cracks, vert_rand, vi, area, data, data_param2, true)
|
|
end
|
|
else
|
|
-- dry barren
|
|
if abs_cracks < 0.075 then
|
|
df_caverns.stalactites(abs_cracks, vert_rand, vi, area, data, data_param2, false)
|
|
end
|
|
local y = area:get_y(vi)
|
|
local y_proportional = (y - df_caverns.config.level1_min) / (df_caverns.config.level2_min - df_caverns.config.level1_min)
|
|
if abs_cracks * y_proportional > 0.3 and math.random() < 0.005 * y_proportional then
|
|
df_mapitems.place_big_crystal_cluster(area, data, data_param2, vi, math.random(0,1), true)
|
|
end
|
|
end
|
|
else -- all the other biomes
|
|
df_caverns.glow_worm_cavern_ceiling(abs_cracks, vert_rand, vi, area, data, data_param2)
|
|
end
|
|
end
|
|
|
|
----------------------------------------------
|
|
-- Tunnel floors
|
|
|
|
for _, vi in ipairs(node_arrays.tunnel_floor_nodes) do
|
|
local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
|
|
local biome_name = get_biome(heatmap[index2d], humiditymap[index2d])
|
|
local flooded_caverns = nvals_cave[vi] < 0 -- this indicates if we're in the "flooded" set of caves or not.
|
|
|
|
if not (flooded_caverns and minp.y < subsea_level and area:get_y(vi) < subsea_level) then
|
|
if flooded_caverns or biome_name ~= "barren" then
|
|
-- we're in flooded areas or are not barren
|
|
df_caverns.tunnel_floor(minp, maxp, area, vi, nvals_cracks, data, data_param2, true)
|
|
else
|
|
df_caverns.tunnel_floor(minp, maxp, area, vi, nvals_cracks, data, data_param2, false, c_gravel)
|
|
end
|
|
end
|
|
end
|
|
|
|
------------------------------------------------------
|
|
-- Tunnel ceiling
|
|
|
|
for _, vi in ipairs(node_arrays.tunnel_ceiling_nodes) do
|
|
local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
|
|
local biome_name = get_biome(heatmap[index2d], humiditymap[index2d])
|
|
local flooded_caverns = nvals_cave[vi] < 0 -- this indicates if we're in the "flooded" set of caves or not.
|
|
local ystride = area.ystride
|
|
|
|
if not (flooded_caverns and minp.y < subsea_level and area:get_y(vi) < subsea_level) then
|
|
if flooded_caverns or biome_name ~= "barren" then
|
|
-- we're in flooded areas or are not barren
|
|
df_caverns.tunnel_ceiling(minp, maxp, area, vi, nvals_cracks, data, data_param2, true)
|
|
else
|
|
df_caverns.tunnel_ceiling(minp, maxp, area, vi, nvals_cracks, data, data_param2, false)
|
|
end
|
|
if not flooded_caverns and (biome_name == "barren" or biome_name == "sporetree") and nvals_cracks[index2d] > 0.5 then
|
|
for i= 1, 4 do
|
|
if math.random() > 0.5 then
|
|
local index = vi-i*ystride
|
|
if data[index] == c_air then
|
|
df_mapitems.place_against_surface_vm(c_pearls, index, area, data, data_param2)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
else
|
|
-- air pockets
|
|
local ystride = area.ystride
|
|
local cracks = nvals_cracks[index2d]
|
|
if cracks > 0.4 and data[vi-ystride] == c_water then
|
|
data[vi-ystride] = c_air
|
|
if cracks > 0.6 and data[vi-ystride*2] == c_water then
|
|
data[vi-ystride*2] = c_air
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
----------------------------------------------
|
|
-- Warren floors
|
|
|
|
for _, vi in ipairs(node_arrays.warren_floor_nodes) do
|
|
local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
|
|
local biome_name = get_biome(heatmap[index2d], humiditymap[index2d])
|
|
local flooded_caverns = nvals_cave[vi] < 0 -- this indicates if we're in the "flooded" set of caves or not.
|
|
|
|
if not (flooded_caverns and minp.y < subsea_level and area:get_y(vi) < subsea_level) then
|
|
if flooded_caverns or biome_name ~= "barren" then
|
|
-- we're in flooded areas or are not barren
|
|
df_caverns.tunnel_floor(minp, maxp, area, vi, nvals_cracks, data, data_param2, true)
|
|
else
|
|
df_caverns.tunnel_floor(minp, maxp, area, vi, nvals_cracks, data, data_param2, false, c_gravel)
|
|
end
|
|
end
|
|
end
|
|
|
|
------------------------------------------------------
|
|
-- Warren ceiling
|
|
|
|
for _, vi in ipairs(node_arrays.warren_ceiling_nodes) do
|
|
local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
|
|
local biome_name = get_biome(heatmap[index2d], humiditymap[index2d])
|
|
local flooded_caverns = nvals_cave[vi] < 0 -- this indicates if we're in the "flooded" set of caves or not.
|
|
local ystride = area.ystride
|
|
|
|
if not (flooded_caverns and minp.y < subsea_level and area:get_y(vi) < subsea_level) then
|
|
if flooded_caverns or biome_name ~= "barren" then
|
|
-- we're in flooded areas or are not barren
|
|
df_caverns.tunnel_ceiling(minp, maxp, area, vi, nvals_cracks, data, data_param2, true)
|
|
else
|
|
df_caverns.tunnel_ceiling(minp, maxp, area, vi, nvals_cracks, data, data_param2, false)
|
|
end
|
|
|
|
if not flooded_caverns and (biome_name == "barren" or biome_name == "sporetree") and nvals_cracks[index2d] > 0.5 then
|
|
for i= 1, 4 do
|
|
if math.random() > 0.5 then
|
|
local index = vi-i*ystride
|
|
if data[index] == c_air then
|
|
df_mapitems.place_against_surface_vm(c_pearls, index, area, data, data_param2)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
else
|
|
-- air pockets
|
|
local cracks = nvals_cracks[index2d]
|
|
if cracks > 0.4 and data[vi-ystride] == c_water then
|
|
data[vi-ystride] = c_air
|
|
if cracks > 0.6 and data[vi-ystride*2] == c_water then
|
|
data[vi-ystride*2] = c_air
|
|
end
|
|
end
|
|
end
|
|
|
|
end
|
|
|
|
----------------------------------------------
|
|
-- Column material override for dry biome
|
|
|
|
for _, vi in ipairs(node_arrays.column_nodes) do
|
|
local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
|
|
local biome_name = get_biome(heatmap[index2d], humiditymap[index2d])
|
|
local dry = (biome_name == "barren") and (nvals_cave[vi] > 0)
|
|
|
|
if dry and data[vi] == c_wet_flowstone then
|
|
data[vi] = c_dry_flowstone
|
|
end
|
|
end
|
|
|
|
vm:set_param2_data(data_param2)
|
|
end
|
|
|
|
subterrane.register_layer({
|
|
name = "cavern layer 2",
|
|
y_max = df_caverns.config.level1_min-1,
|
|
y_min = df_caverns.config.level2_min,
|
|
cave_threshold = df_caverns.config.cavern_threshold,
|
|
boundary_blend_range = 64, -- range near ymin and ymax over which caves diminish to nothing
|
|
perlin_cave = df_caverns.perlin_cave,
|
|
perlin_wave = df_caverns.perlin_wave,
|
|
solidify_lava = true,
|
|
columns = {
|
|
maximum_radius = 15,
|
|
minimum_radius = 4,
|
|
node = "df_mapitems:wet_flowstone",
|
|
weight = 0.25,
|
|
maximum_count = 50,
|
|
minimum_count = 5,
|
|
},
|
|
decorate = decorate_level_2,
|
|
warren_region_variability_threshold = 0.33,
|
|
double_frequency = true,
|
|
is_ground_content = df_caverns.is_ground_content,
|
|
})
|
|
|