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Modpack refactor (#4)
Split this mod into a set of sub-mods in a modpack, and in the process did a whole bunch of renovations. * updated Subterrane's API to allow for more patterned placement of things * added "warrens" * clean separation of flooded and non-flooded caverns * rearranged biomes to make cavern layers more distinct * added oil layer * added underworld layer
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210
df_caverns/shared.lua
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210
df_caverns/shared.lua
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-- This file contains code that is used by multiple different cavern layers.
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local c_water = minetest.get_content_id("default:water_source")
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local c_air = minetest.get_content_id("air")
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local c_dirt = minetest.get_content_id("default:dirt")
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local c_gravel = minetest.get_content_id("default:gravel")
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local c_dirt_moss = minetest.get_content_id("df_mapitems:dirt_with_cave_moss")
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local c_cobble_fungus = minetest.get_content_id("df_mapitems:cobble_with_floor_fungus")
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local c_cobble_fungus_fine = minetest.get_content_id("df_mapitems:cobble_with_floor_fungus_fine")
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local c_cobble = minetest.get_content_id("default:cobble")
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local c_mossycobble = minetest.get_content_id("default:mossycobble")
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local c_wet_flowstone = minetest.get_content_id("df_mapitems:wet_flowstone")
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local c_dry_flowstone = minetest.get_content_id("df_mapitems:dry_flowstone")
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df_caverns.data_param2 = {}
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--------------------------------------------------
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df_caverns.stalagmites = function(abs_cracks, vert_rand, vi, area, data, data_param2, wet, reverse_sign)
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local flowstone
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local stalagmite_ids
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if wet then
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flowstone = c_wet_flowstone
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stalagmite_ids = df_mapitems.wet_stalagmite_ids
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else
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flowstone = c_dry_flowstone
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stalagmite_ids = df_mapitems.dry_stalagmite_ids
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end
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local height_mult = 1
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local ystride = area.ystride
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if reverse_sign then
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ystride = - ystride
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height_mult = -1
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end
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if vert_rand < 0.004 then
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if reverse_sign then
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subterrane.big_stalactite(vi+ystride, area, data, 6, 15, flowstone, flowstone, flowstone)
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else
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subterrane.big_stalagmite(vi+ystride, area, data, 6, 15, flowstone, flowstone, flowstone)
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end
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else
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local param2 = abs_cracks*1000000 - math.floor(abs_cracks*1000000/4)*4
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local height = math.floor(abs_cracks * 50)
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subterrane.stalagmite(vi+ystride, area, data, data_param2, param2, height*height_mult, stalagmite_ids)
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end
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data[vi] = flowstone
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end
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df_caverns.stalactites = function(abs_cracks, vert_rand, vi, area, data, data_param2, wet)
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df_caverns.stalagmites(abs_cracks, vert_rand, vi, area, data, data_param2, wet, true)
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end
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--------------------------------------------------
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df_caverns.flooded_cavern_floor = function(abs_cracks, vert_rand, vi, area, data)
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local ystride = area.ystride
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if abs_cracks < 0.25 then
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data[vi] = c_mossycobble
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elseif data[vi-ystride] ~= c_water then
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data[vi] = c_dirt
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end
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-- put in only the large stalagmites that won't get in the way of the water
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if abs_cracks < 0.1 then
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if vert_rand < 0.004 then
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subterrane.big_stalagmite(vi+ystride, area, data, 6, 15, c_wet_flowstone, c_wet_flowstone, c_wet_flowstone)
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end
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end
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end
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local c_dead_fungus
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if minetest.get_modpath("df_farming") then
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c_dead_fungus = minetest.get_content_id("df_farming:dead_fungus")
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end
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df_caverns.dry_cavern_floor = function(abs_cracks, vert_rand, vi, area, data, data_param2)
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if abs_cracks < 0.075 then
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df_caverns.stalagmites(abs_cracks, vert_rand, vi, area, data, data_param2, false)
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elseif abs_cracks < 0.4 then
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data[vi] = c_cobble
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elseif abs_cracks < 0.6 then
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data[vi] = c_cobble_fungus_fine
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else
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data[vi] = c_cobble_fungus
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if c_dead_fungus and math.random() < 0.05 then
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data[vi+area.ystride] = c_dead_fungus
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end
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end
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end
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df_caverns.wet_cavern_floor = function(abs_cracks, vert_rand, vi, area, data, data_param2)
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if abs_cracks < 0.1 then
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df_caverns.stalagmites(abs_cracks, vert_rand, vi, area, data, data_param2, true)
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elseif abs_cracks < 0.6 then
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data[vi] = c_cobble
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else
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data[vi] = c_mossycobble
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if c_dead_fungus and math.random() < 0.05 then
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data[vi+area.ystride] = c_dead_fungus
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end
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end
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end
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--------------------------------------
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df_caverns.glow_worm_cavern_ceiling = function(abs_cracks, vert_rand, vi, area, data, data_param2)
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if abs_cracks < 0.1 then
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df_caverns.stalactites(abs_cracks, vert_rand, vi, area, data, data_param2, true)
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elseif abs_cracks < 0.5 and abs_cracks > 0.3 and math.random() < 0.3 then
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df_mapitems.glow_worm_ceiling(area, data, vi-area.ystride)
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end
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end
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local content_in_list=function(content, list)
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for i, v in ipairs(list) do
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if content == v then return true end
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end
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return false
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end
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df_caverns.tunnel_floor = function(minp, maxp, area, vi, nvals_cracks, data, data_param2, wet)
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local ystride = area.ystride
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local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
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local cracks = nvals_cracks[index2d]
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local abs_cracks = math.abs(cracks)
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if wet then
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if abs_cracks < 0.05 and data[vi+ystride] == c_air and not content_in_list(data[vi], df_mapitems.wet_stalagmite_ids) then -- make sure data[vi] is not already flowstone. Stalagmites from lower levels are acting as base for further stalagmites
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local param2 = abs_cracks*1000000 - math.floor(abs_cracks*1000000/4)*4
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local height = math.floor(abs_cracks * 100)
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subterrane.stalagmite(vi+ystride, area, data, data_param2, param2, height, df_mapitems.wet_stalagmite_ids)
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data[vi] = c_wet_flowstone
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end
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else
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if abs_cracks < 0.025 and data[vi+ystride] == c_air and not content_in_list(data[vi], df_mapitems.dry_stalagmite_ids) then -- make sure data[vi] is not already flowstone. Stalagmites from lower levels are acting as base for further stalagmites
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local param2 = abs_cracks*1000000 - math.floor(abs_cracks*1000000/4)*4
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local height = math.floor(abs_cracks * 100)
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subterrane.stalagmite(vi+ystride, area, data, data_param2, param2, height, df_mapitems.dry_stalagmite_ids)
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elseif cracks > 0.5 and data[vi-ystride] ~= c_air then
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data[vi] = c_gravel
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end
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end
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end
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df_caverns.tunnel_ceiling = function(minp, maxp, area, vi, nvals_cracks, data, data_param2, wet)
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local ystride = area.ystride
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local index2d = mapgen_helper.index2di(minp, maxp, area, vi)
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local cracks = nvals_cracks[index2d]
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local abs_cracks = math.abs(cracks)
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if wet then
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if abs_cracks < 0.05 and data[vi-ystride] == c_air and not content_in_list(data[vi], df_mapitems.wet_stalagmite_ids) then -- make sure data[vi] is not already flowstone. Stalagmites from lower levels are acting as base for further stalagmites
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local param2 = abs_cracks*1000000 - math.floor(abs_cracks*1000000/4)*4
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local height = math.floor(abs_cracks * 100)
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subterrane.stalactite(vi-ystride, area, data, data_param2, param2, height, df_mapitems.wet_stalagmite_ids)
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data[vi] = c_wet_flowstone
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end
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else
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if abs_cracks < 0.025 and data[vi-ystride] == c_air and not content_in_list(data[vi], df_mapitems.dry_stalagmite_ids) then -- make sure data[vi] is not already flowstone. Stalagmites from lower levels are acting as base for further stalagmites
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local param2 = abs_cracks*1000000 - math.floor(abs_cracks*1000000/4)*4
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local height = math.floor(abs_cracks * 100)
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subterrane.stalactite(vi-ystride, area, data, data_param2, param2, height, df_mapitems.dry_stalagmite_ids)
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end
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end
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end
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df_caverns.perlin_cave = {
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offset = 0,
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scale = 1,
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spread = {x=df_caverns.config.horizontal_cavern_scale, y=df_caverns.config.vertical_cavern_scale, z=df_caverns.config.horizontal_cavern_scale},
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seed = -400000000089,
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octaves = 3,
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persist = 0.67
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}
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df_caverns.perlin_wave = {
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offset = 0,
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scale = 1,
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spread = {x=df_caverns.config.horizontal_cavern_scale * 2, y=df_caverns.config.vertical_cavern_scale, z=df_caverns.config.horizontal_cavern_scale * 2}, -- squashed 2:1
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seed = 59033,
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octaves = 6,
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persist = 0.63
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}
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-- Used for making lines of dripstone, and in various other places where small-scale patterns are needed
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df_caverns.np_cracks = {
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offset = 0,
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scale = 1,
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spread = {x = 20, y = 20, z = 20},
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seed = 5717,
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octaves = 3,
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persist = 0.63,
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lacunarity = 2.0,
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}
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---------------------------------------------------------------------------------
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df_caverns.place_shrub = function(vi, area, data, param2_data, shrub_list)
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if shrub_list == nil then
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return
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end
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local shrub = shrub_list[math.random(#shrub_list)]
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shrub(vi, area, data, param2_data)
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end
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