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Diffstat (limited to 'caverealms_lite/init.lua')
| -rw-r--r-- | caverealms_lite/init.lua | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/caverealms_lite/init.lua b/caverealms_lite/init.lua new file mode 100644 index 0000000..5cc8a2c --- /dev/null +++ b/caverealms_lite/init.lua @@ -0,0 +1,333 @@ +caverealms = {} --create a container for functions and constants + +--grab a shorthand for the filepath of the mod +local modpath = minetest.get_modpath(minetest.get_current_modname()) + +--load companion lua files +dofile(modpath.."/config.lua") --configuration file; holds various constants +dofile(modpath.."/crafting.lua") --crafting recipes +dofile(modpath.."/nodes.lua") --node definitions +dofile(modpath.."/functions.lua") --function definitions +dofile(modpath.."/plants.lua") + +if minetest.get_modpath("mobs_monster") then + if caverealms.config.dm_spawn == true then + dofile(modpath.."/dungeon_master.lua") --special DMs for DM's Lair biome + end +end + +-- Parameters + +local YMIN = caverealms.config.ymin -- Approximate realm limits. +local YMAX = caverealms.config.ymax +local TCAVE = caverealms.config.tcave --0.5 -- Cave threshold. 1 = small rare caves, 0.5 = 1/3rd ground volume, 0 = 1/2 ground volume +local BLEND = 128 -- Cave blend distance near YMIN, YMAX + +local STAGCHA = caverealms.config.stagcha --0.002 --chance of stalagmites +local STALCHA = caverealms.config.stalcha --0.003 --chance of stalactites +local CRYSTAL = caverealms.config.crystal --0.007 --chance of glow crystal formations +local GEMCHA = caverealms.config.gemcha --0.03 --chance of small glow gems +local MUSHCHA = caverealms.config.mushcha --0.04 --chance of mushrooms +local MYCCHA = caverealms.config.myccha --0.03 --chance of mycena mushrooms +local WORMCHA = caverealms.config.wormcha --0.03 --chance of glow worms +local GIANTCHA = caverealms.config.giantcha --0.001 -- chance of giant mushrooms +local ICICHA = caverealms.config.icicha --0.035 -- chance of icicles +local FLACHA = caverealms.config.flacha --0.04 --chance of constant flames + +local DM_TOP = caverealms.config.dm_top -- -4000 --level at which Dungeon Master Realms start to appear +local DM_BOT = caverealms.config.dm_bot -- -5000 --level at which "" ends +local DEEP_CAVE = caverealms.config.deep_cave -- -7000 --level at which deep cave biomes take over + +-- 2D noise for biome + +local np_biome = { + offset = 0, + scale = 1, + spread = {x=200, y=200, z=200}, + seed = 9130, + octaves = 3, + persist = 0.5 +} + +-- Stuff + +subterrain = {} + + +-- On generated function + +minetest.register_on_generated(function(minp, maxp, seed) + --if out of range of caverealms limits + if minp.y > YMAX or maxp.y < YMIN then + return --quit; otherwise, you'd have stalagmites all over the place + end + + --easy reference to commonly used values + local t1 = os.clock() + local x1 = maxp.x + local y1 = maxp.y + local z1 = maxp.z + local x0 = minp.x + local y0 = minp.y + local z0 = minp.z + + --print ("[caverealms] chunk minp ("..x0.." "..y0.." "..z0..")") --tell people you are generating a chunk + + local vm, emin, emax = minetest.get_mapgen_object("voxelmanip") + local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax} + local data = vm:get_data() + + --grab content IDs + local c_air = minetest.get_content_id("air") + local c_stone = minetest.get_content_id("default:stone") + + local c_water = minetest.get_content_id("default:water_source") + local c_lava = minetest.get_content_id("default:lava_source") + local c_ice = minetest.get_content_id("default:ice") + local c_thinice = minetest.get_content_id("caverealms:thin_ice") + local c_crystal = minetest.get_content_id("caverealms:glow_crystal") + local c_gem = minetest.get_content_id("caverealms:glow_gem") + local c_saltgem = minetest.get_content_id("caverealms:salt_gem") + local c_spike = minetest.get_content_id("caverealms:spike") + local c_moss = minetest.get_content_id("caverealms:stone_with_moss") + local c_lichen = minetest.get_content_id("caverealms:stone_with_lichen") + local c_algae = minetest.get_content_id("caverealms:stone_with_algae") + local c_salt = minetest.get_content_id("caverealms:stone_with_salt") + local c_hcobble = minetest.get_content_id("caverealms:hot_cobble") + local c_gobsidian = minetest.get_content_id("caverealms:glow_obsidian") + local c_gobsidian2 = minetest.get_content_id("caverealms:glow_obsidian_2") + local c_coalblock = minetest.get_content_id("default:coalblock") + local c_desand = minetest.get_content_id("default:desert_sand") + local c_coaldust = minetest.get_content_id("caverealms:coal_dust") + local c_fungus = minetest.get_content_id("caverealms:fungus") + local c_mycena = minetest.get_content_id("caverealms:mycena") + local c_worm = minetest.get_content_id("caverealms:glow_worm") + local c_worm_green = minetest.get_content_id("caverealms:glow_worm_green") + local c_fire_vine = minetest.get_content_id("caverealms:fire_vine") + local c_iciu = minetest.get_content_id("caverealms:icicle_up") + local c_icid = minetest.get_content_id("caverealms:icicle_down") + local c_flame = minetest.get_content_id("caverealms:constant_flame") + + --mandatory values + local sidelen = x1 - x0 + 1 --length of a mapblock + local chulens = {x=sidelen, y=sidelen, z=sidelen} --table of chunk edges + local chulens2D = {x=sidelen, y=sidelen, z=1} + local minposxyz = {x=x0, y=y0, z=z0} --bottom corner + local minposxz = {x=x0, y=z0} --2D bottom corner + + local nvals_biome = minetest.get_perlin_map(np_biome, chulens2D):get2dMap_flat({x=x0+150, y=z0+50}) --2D noise for biomes (will be 3D humidity/temp later) + + local nixyz = 1 --3D node index + local nixz = 1 --2D node index + local nixyz2 = 1 --second 3D index for second loop + + + for z = z0, z1 do -- for each xy plane progressing northwards + --increment indices + nixyz = nixyz + 1 + + + --decoration loop + for y = y0, y1 do -- for each x row progressing upwards + + local c_selected_worm = c_worm + + local is_deep = false + if y < DEEP_CAVE then + is_deep = true + end + + + local vi = area:index(x0, y, z) + for x = x0, x1 do -- for each node do + + --determine biome + local biome = 0 --preliminary declaration + local n_biome = nvals_biome[nixz] --make an easier reference to the noise + + --compare noise values to determine a biome + if n_biome <= -0.5 then + if is_deep and n_biome <= -0.25 then + biome = 8 --glow obsidian + else + biome = 2 --fungal + c_selected_worm = c_worm_green + end + + elseif n_biome < 0 then + biome = 0 -- none + + elseif n_biome < 0.5 then + if is_deep and n_biome <= 0.25 then + biome = 7 --salt crystal + else + biome = 1 --moss + end + + elseif n_biome < 0.65 then + biome = 0 + + elseif n_biome < 0.85 then + if is_deep and n_biome <= 0.75 then + biome = 9 --coal dust + else + biome = 3 --algae + c_selected_worm = c_worm_green + end + + else + if is_deep and n_biome <= .95 then + biome = 5 --deep glaciated + else + biome = 4 --glaciated + end + end + + --print(biome) + + if biome > 0 then + if y <= DM_TOP and y >= DM_BOT then + biome = 6 --DUNGEON MASTER'S LAIR + c_selected_worm = c_fire_vine + end + + --ceiling + local ai = area:index(x,y+1,z) --above index + if data[ai] == c_stone and data[vi] == c_air then --ceiling + if math.random() < ICICHA and (biome == 4 or biome == 5) then + data[vi] = c_icid + end + if math.random() < WORMCHA then + data[vi] = c_selected_worm + local bi = area:index(x,y-1,z) + data[bi] = c_selected_worm + if math.random(2) == 1 then + local bbi = area:index(x,y-2,z) + data[bbi] = c_selected_worm + if math.random(2) ==1 then + local bbbi = area:index(x,y-3,z) + data[bbbi] = c_selected_worm + end + end + end + if math.random() < STALCHA then + caverealms:stalactite(x,y,z, area, data) + end + if math.random() < CRYSTAL then + caverealms:crystal_stalactite(x,y,z, area, data, biome) + end + end + --ground + local bi = area:index(x,y-1,z) --below index + if data[bi] == c_stone and data[vi] == c_air then --ground + local ai = area:index(x,y+1,z) + --place floor material, add plants/decorations + if biome == 1 then + data[vi] = c_moss + if math.random() < GEMCHA then + data[ai] = c_gem + end + elseif biome == 2 then + data[vi] = c_lichen + if math.random() < MUSHCHA then --mushrooms + data[ai] = c_fungus + end + if math.random() < MYCCHA then --mycena mushrooms + data[ai] = c_mycena + end + if math.random() < GIANTCHA then --giant mushrooms + caverealms:giant_shroom(x, y, z, area, data) + end + elseif biome == 3 then + data[vi] = c_algae + elseif biome == 4 then + data[vi] = c_thinice + local bi = area:index(x,y-1,z) + data[bi] = c_thinice + if math.random() < ICICHA then --if glaciated, place icicles + data[ai] = c_iciu + end + elseif biome == 5 then + data[vi] = c_ice + local bi = area:index(x,y-1,z) + data[bi] = c_ice + if math.random() < ICICHA then --if glaciated, place icicles + data[ai] = c_iciu + end + elseif biome == 6 then + data[vi] = c_hcobble + if math.random() < FLACHA then --neverending flames + data[ai] = c_flame + end + elseif biome == 7 then + local bi = area:index(x,y-1,z) + data[vi] = c_salt + data[bi] = c_salt + if math.random() < GEMCHA then + data[ai] = c_saltgem + end + if math.random() < STAGCHA then + caverealms:salt_stalagmite(x,y,z, area, data) + end + elseif biome == 8 then + local bi = area:index(x,y-1,z) + if math.random() < 0.5 then + data[vi] = c_gobsidian + data[bi] = c_gobsidian + else + data[vi] = c_gobsidian2 + data[bi] = c_gobsidian2 + end + if math.random() < FLACHA then --neverending flames + data[ai] = c_flame + end + elseif biome == 9 then + local bi = area:index(x,y-1,z) + if math.random() < 0.05 then + data[vi] = c_coalblock + data[bi] = c_coalblock + elseif math.random() < 0.15 then + data[vi] = c_coaldust + data[bi] = c_coaldust + else + data[vi] = c_desand + data[bi] = c_desand + end + if math.random() < FLACHA * 0.75 then --neverending flames + data[ai] = c_flame + end + if math.random() < GEMCHA then + data[ai] = c_spike + end + end + + if math.random() < STAGCHA then + caverealms:stalagmite(x,y,z, area, data) + end + if math.random() < CRYSTAL then + caverealms:crystal_stalagmite(x,y,z, area, data, biome) + end + end + + end + nixyz2 = nixyz2 + 1 + nixz = nixz + 1 + vi = vi + 1 + end + nixz = nixz - sidelen --shift the 2D index back + end + nixz = nixz + sidelen --shift the 2D index up a layer + end + + --send data back to voxelmanip + vm:set_data(data) + --calc lighting + vm:set_lighting({day=0, night=0}) + vm:calc_lighting() + --write it to world + vm:write_to_map(data) + + --local chugent = math.ceil((os.clock() - t1) * 1000) --grab how long it took + --print ("[caverealms] "..chugent.." ms") --tell people how long +end) +print("[caverealms] loaded!") |