planet type system, class-m impl
Thomas Rudin
parent
36b59b8068
commit
89026cbf33
3
init.lua
3
init.lua
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@ -3,7 +3,7 @@ planetoidgen = {
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miny = tonumber(minetest.settings:get("planetoidgen.miny")) or 6000,
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maxy = tonumber(minetest.settings:get("planetoidgen.maxy")) or 10000,
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planets = {},
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profile_mapgen = minetest.settings:get("planetoidgen.profile_mapgen")
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planettypes = {} -- type => fn
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}
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@ -12,5 +12,6 @@ local MP = minetest.get_modpath("planetoidgen")
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dofile(MP.."/planets.lua")
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dofile(MP.."/vacuum.lua")
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dofile(MP.."/mapgen.lua")
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dofile(MP.."/planets/classm.lua")
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print("[OK] Planetoidgen")
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119
mapgen.lua
119
mapgen.lua
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@ -1,26 +1,5 @@
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local c_ignore = minetest.get_content_id("ignore")
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local c_air = minetest.get_content_id("air")
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local c_shell = minetest.get_content_id("default:stone")
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local c_dirt_with_grass = minetest.get_content_id("default:dirt_with_grass")
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local c_dirt_with_rainforest_litter = minetest.get_content_id("default:dirt_with_rainforest_litter")
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local c_dirt_with_dry_grass = minetest.get_content_id("default:dirt_with_dry_grass")
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local c_dirt_with_coniferous_litter = minetest.get_content_id("default:dirt_with_coniferous_litter")
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local c_dirt_with_snow = minetest.get_content_id("default:dirt_with_snow")
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local c_sand = minetest.get_content_id("default:sand")
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local noise_params = {
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offset = 0,
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scale = 5,
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spread = {x=256, y=256, z=256},
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seed = 5477835,
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octaves = 2,
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persist = 0.5
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}
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local perlin
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local perlin_map = {}
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local get_corners = function(minp, maxp)
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return {
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minp,
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@ -58,100 +37,20 @@ minetest.register_on_generated(function(minp, maxp, seed)
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return
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end
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local planetgenfn = planetoidgen.planettypes[planet.type]
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if not planetgenfn then
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minetest.log("warning", "[planetoidgen] generator not found for type: " .. planet.type)
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return
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end
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local t0 = minetest.get_us_time()
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-- setup perlin stuff
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local side_length = maxp.x - minp.x + 1 -- 80
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local map_lengths_xyz = {x=side_length, y=side_length, z=side_length}
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perlin = perlin or minetest.get_perlin_map(noise_params, map_lengths_xyz)
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perlin:get_2d_map_flat({x=minp.x, y=minp.z}, perlin_map)
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local perlin_index = 1
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local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local data = vm:get_data()
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local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
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for z=minp.z,maxp.z do
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for x=minp.x,maxp.x do
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-- normalized factor from 0...1
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local perlin_factor = math.min(1, math.abs( perlin_map[perlin_index] * 0.1 ) )
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for y=minp.y,maxp.y do
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local i = area:index(x,y,z)
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if data[i] == c_air or data[i] == c_ignore then
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local pos = area:position(i)
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local distance_to_center = vector.distance(pos, planet.pos)
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-- check if inside radius
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if distance_to_center <= planet.radius then
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local is_outer_shell = pos.y < planet.pos.y
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local is_top = pos.y == planet.pos.y
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if is_outer_shell then
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data[i] = c_shell
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elseif is_top then
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if perlin_factor > 0.9 then
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data[i] = c_sand
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elseif perlin_factor > 0.7 then
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data[i] = c_dirt_with_dry_grass
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elseif perlin_factor > 0.5 then
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data[i] = c_dirt_with_coniferous_litter
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elseif perlin_factor > 0.4 then
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data[i] = c_dirt_with_rainforest_litter
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elseif perlin_factor > 0.1 then
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data[i] = c_dirt_with_grass
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else
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data[i] = c_dirt_with_snow
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end
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end
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end -- distance check
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end -- air check
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end--y
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perlin_index = perlin_index + 1
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end--x
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end--z
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vm:set_data(data)
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if minp.y < planet.pos.y then
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print("[planetoidgen] generating ores for " .. minetest.pos_to_string(minp))
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-- generate ores
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minetest.generate_ores(vm, minp, {
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x = maxp.x,
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y = math.min(maxp.y, planet.pos.y-1),
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z = maxp.z
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})
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end
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if minp.y <= planet.pos.y and maxp.y >= planet.pos.y then
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print("[planetoidgen] generating decos for " .. minetest.pos_to_string(minp))
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-- generate decorations
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minetest.generate_decorations(vm, {
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x = minp.x, y = planet.pos.y-20, z=minp.z
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}, {
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x = maxp.x, y = planet.pos.y+10, z=maxp.z
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})
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end
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vm:set_lighting({day=15, night=0})
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vm:write_to_map()
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planetgenfn(planet, minp, maxp, seed)
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local t1 = minetest.get_us_time()
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local micros = t1 -t0
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if planetoidgen.profile_mapgen then
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print("[planetoidgen] mapgen for " .. minetest.pos_to_string(minp) .. " took " .. micros .. " us")
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end
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minetest.log("debug", "[planetoidgen] mapgen for " .. minetest.pos_to_string(minp) .. " took " .. micros .. " us")
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end)
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@ -0,0 +1,115 @@
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local c_ignore = minetest.get_content_id("ignore")
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local c_air = minetest.get_content_id("air")
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local c_shell = minetest.get_content_id("default:stone")
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local c_dirt_with_grass = minetest.get_content_id("default:dirt_with_grass")
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local c_dirt_with_rainforest_litter = minetest.get_content_id("default:dirt_with_rainforest_litter")
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local c_dirt_with_dry_grass = minetest.get_content_id("default:dirt_with_dry_grass")
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local c_dirt_with_coniferous_litter = minetest.get_content_id("default:dirt_with_coniferous_litter")
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local c_dirt_with_snow = minetest.get_content_id("default:dirt_with_snow")
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local c_sand = minetest.get_content_id("default:sand")
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local noise_params = {
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offset = 0,
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scale = 5,
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spread = {x=256, y=256, z=256},
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seed = 5477835,
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octaves = 2,
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persist = 0.5
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}
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local perlin
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local perlin_map = {}
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planetoidgen.planettypes["class-m"] = function(planet, minp, maxp, seed)
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-- setup perlin stuff
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local side_length = maxp.x - minp.x + 1 -- 80
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local map_lengths_xyz = {x=side_length, y=side_length, z=side_length}
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perlin = perlin or minetest.get_perlin_map(noise_params, map_lengths_xyz)
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perlin:get_2d_map_flat({x=minp.x, y=minp.z}, perlin_map)
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local perlin_index = 1
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local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local data = vm:get_data()
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local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
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for z=minp.z,maxp.z do
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for x=minp.x,maxp.x do
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-- normalized factor from 0...1
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local perlin_factor = math.min(1, math.abs( perlin_map[perlin_index] * 0.1 ) )
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for y=minp.y,maxp.y do
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local i = area:index(x,y,z)
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if data[i] == c_air or data[i] == c_ignore then
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local pos = area:position(i)
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local distance_to_center = vector.distance(pos, planet.pos)
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-- check if inside radius
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if distance_to_center <= planet.radius then
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local is_outer_shell = pos.y < planet.pos.y
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local is_top = pos.y == planet.pos.y
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if is_outer_shell then
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data[i] = c_shell
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elseif is_top then
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if perlin_factor > 0.9 then
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data[i] = c_sand
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elseif perlin_factor > 0.7 then
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data[i] = c_dirt_with_dry_grass
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elseif perlin_factor > 0.5 then
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data[i] = c_dirt_with_coniferous_litter
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elseif perlin_factor > 0.4 then
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data[i] = c_dirt_with_rainforest_litter
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elseif perlin_factor > 0.1 then
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data[i] = c_dirt_with_grass
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else
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data[i] = c_dirt_with_snow
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end
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end
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end -- distance check
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end -- air check
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end--y
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perlin_index = perlin_index + 1
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end--x
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end--z
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vm:set_data(data)
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if minp.y < planet.pos.y then
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print("[planetoidgen] generating ores for " .. minetest.pos_to_string(minp))
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-- generate ores
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minetest.generate_ores(vm, minp, {
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x = maxp.x,
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y = math.min(maxp.y, planet.pos.y-1),
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z = maxp.z
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})
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end
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if minp.y <= planet.pos.y and maxp.y >= planet.pos.y then
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print("[planetoidgen] generating decos for " .. minetest.pos_to_string(minp))
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-- generate decorations
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minetest.generate_decorations(vm, {
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x = minp.x, y = planet.pos.y-20, z=minp.z
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}, {
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x = maxp.x, y = planet.pos.y+10, z=maxp.z
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})
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end
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vm:set_lighting({day=15, night=0})
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vm:write_to_map()
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end
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