210 lines
7.8 KiB
Lua
210 lines
7.8 KiB
Lua
local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, ore_per_chunk, height_min, height_max)
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if maxp.y < height_min or minp.y > height_max then
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return
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end
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local y_min = math.max(minp.y, height_min)
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local y_max = math.min(maxp.y, height_max)
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local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1)
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local pr = PseudoRandom(seed)
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local num_chunks = math.floor(chunks_per_volume * volume)
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local chunk_size = 3
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if ore_per_chunk <= 4 then
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chunk_size = 2
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end
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local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
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--print("generate_ore num_chunks: "..dump(num_chunks))
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for i=1,num_chunks do
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if (y_max-chunk_size+1 <= y_min) then return end
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local y0 = pr:next(y_min, y_max-chunk_size+1)
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if y0 >= height_min and y0 <= height_max then
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local x0 = pr:next(minp.x, maxp.x-chunk_size+1)
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local z0 = pr:next(minp.z, maxp.z-chunk_size+1)
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local p0 = {x=x0, y=y0, z=z0}
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for x1=0,chunk_size-1 do
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for y1=0,chunk_size-1 do
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for z1=0,chunk_size-1 do
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if pr:next(1,inverse_chance) == 1 then
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local x2 = x0+x1
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local y2 = y0+y1
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local z2 = z0+z1
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local p2 = {x=x2, y=y2, z=z2}
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if minetest.env:get_node(p2).name == wherein then
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minetest.env:set_node(p2, {name=name})
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end
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end
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end
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end
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end
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end
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end
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--print("generate_ore done")
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end
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local function generate_kohle(minp, maxp, seed, chunks_per_volume, chunk_size, height_min, height_max)
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generate_ore("sumpf:kohle", "sumpf:junglestone", minp, maxp, seed, chunks_per_volume, chunk_size, height_min, height_max)
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end
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local function generate_eisen(minp, maxp, seed, chunks_per_volume, chunk_size, height_min, height_max)
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generate_ore("sumpf:eisen", "sumpf:junglestone", minp, maxp, seed, chunks_per_volume, chunk_size, height_min, height_max)
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end
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minetest.register_alias("sumpf:pilz", "riesenpilz:brown")
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local function avoid_nearby_node(pos, node)
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if minetest.env:get_node({x=pos.x-1, y=pos.y, z=pos.z}).name == node then return false end
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if minetest.env:get_node({x=pos.x+1, y=pos.y, z=pos.z}).name == node then return false end
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if minetest.env:get_node({x=pos.x, y=pos.y, z=pos.z-1}).name == node then return false end
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if minetest.env:get_node({x=pos.x, y=pos.y, z=pos.z+1}).name == node then return false end
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return true
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end
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local function find_ground(pos, nodes)
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for _, evground in ipairs(nodes) do
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if minetest.env:get_node(pos).name == evground then
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return true
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end
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end
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return false
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end
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SUMPFGROUND = {"default:dirt_with_grass","default:dirt","default:sand","default:desert_sand"}
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EVSUMPFGROUND = {"default:dirt_with_grass","default:dirt","default:sand","default:desert_sand", "default:water_source"}
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USUAL_STUFF = {"default:leaves","default:apple","default:tree","default:dry_shrub","default:cactus","default:papyrus"}
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minetest.register_on_generated(function(minp, maxp, seed)
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if maxp.y >= -10 then
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local x0,z0,x1,z1 = minp.x,minp.z,maxp.x,maxp.z -- Assume X and Z lengths are equal
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local env = minetest.env --Should make things a bit faster.
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local perlin1 = env:get_perlin(11,3, 0.5, 200) --Get map specific perlin
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--[[if not (perlin1:get2d({x=x0, y=z0}) > 0.53) and not (perlin1:get2d({x=x1, y=z1}) > 0.53)
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and not (perlin1:get2d({x=x0, y=z1}) > 0.53) and not (perlin1:get2d({x=x1, y=z0}) > 0.53)
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and not (perlin1:get2d({x=(x1-x0)/2, y=(z1-z0)/2}) > 0.53) then]]
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if not ( perlin1:get2d( {x=x0, y=z0} ) > 0.53 ) --top left
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and not ( perlin1:get2d( { x = x0 + ( (x1-x0)/2), y=z0 } ) > 0.53 )--top middle
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and not (perlin1:get2d({x=x1, y=z1}) > 0.53) --bottom right
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and not (perlin1:get2d({x=x1, y=z0+((z1-z0)/2)}) > 0.53) --right middle
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and not (perlin1:get2d({x=x0, y=z1}) > 0.53) --bottom left
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and not (perlin1:get2d({x=x1, y=z0}) > 0.53) --top right
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and not (perlin1:get2d({x=x0+((x1-x0)/2), y=z1}) > 0.53) --left middle
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and not (perlin1:get2d({x=(x1-x0)/2, y=(z1-z0)/2}) > 0.53) --middle
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and not (perlin1:get2d({x=x0, y=z1+((z1-z0)/2)}) > 0.53) then --bottom middle
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print("abortsumpf")
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return
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end
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local divs = (maxp.x-minp.x);
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local pr = PseudoRandom(seed+68)
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--remove usual stuff
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local trees = env:find_nodes_in_area(minp, maxp, USUAL_STUFF)
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for i,v in pairs(trees) do
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env:remove_node(v)
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end
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--Information:
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local geninfo = "-#- Swamp generates: x=["..minp.x.."; "..maxp.x.."] z=["..minp.z.."; "..maxp.z.."]"
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print(geninfo)
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minetest.chat_send_all(geninfo)
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local smooth = sumpf.smooth
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local swampwater = sumpf.swampwater
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for j=0,divs do
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for i=0,divs do
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local x,z = x0+i,z0+j
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--Check if we are in a "Swamp biome"
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local in_biome = false
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local test = perlin1:get2d({x=x, y=z})
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--smooth mapgen
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if smooth and (test > 0.73 or (test > 0.43 and pr:next(0,29) > (0.73 - test) * 100 )) then
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in_biome = true
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elseif (not smooth) and test > 0.53 then
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in_biome = true
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end
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if in_biome then
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local ground_y = nil --Definition des Bodens:
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for y=maxp.y,0,-1 do
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if find_ground({x=x,y=y,z=z}, EVSUMPFGROUND) then
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ground_y = y
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break
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end
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end
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local ground = {x=x,y=ground_y,z=z}
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if ground_y
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and find_ground({x=x,y=ground_y,z=z}, SUMPFGROUND) then --Pflanzen (und Pilz):
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local boden = {x=x,y=ground_y+1,z=z}
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if pr:next(1,80) == 1 then
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mache_birke(boden)
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elseif pr:next(1,20) == 1 then
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env:add_node(boden, {name="jungletree:sapling"})
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elseif pr:next(1,50) == 1 then
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env:add_node(boden, {name="riesenpilz:brown"})
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elseif pr:next(1,100) == 1 then
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env:add_node(boden, {name="riesenpilz:red"})
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elseif pr:next(1,200) == 1 then
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env:add_node(boden, {name="riesenpilz:fly_agaric"})
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elseif pr:next(1,4) == 1 then
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env:add_node(boden, {name="sumpf:gras"})
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elseif pr:next(1,6) == 1 then
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env:add_node(boden, {name="default:junglegrass"})
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end --Sumpfwasser:
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if swampwater
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and pr:next(1,2) == 2
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and avoid_nearby_node(ground, "air")
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and avoid_nearby_node(ground, "default:junglegrass")
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and avoid_nearby_node(ground, "sumpf:gras")
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and avoid_nearby_node(ground, "riesenpilz:brown")
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and avoid_nearby_node(ground, "riesenpilz:red")
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and avoid_nearby_node(ground, "riesenpilz:fly_agaric")
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and avoid_nearby_node(ground, "ignore")
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and env:get_node(boden).name == "air" then
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for s=0,-20-pr:next(1,9),-1 do
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local pos = {x=x,y=ground_y+s,z=z}
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if env:get_node(pos).name ~= "air" then
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env:add_node(pos, {name="sumpf:dirtywater_source"})
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else
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break
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end
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end
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else --Sumpfboden:
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for l=-1,0,1 do
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env:add_node({x=x,y=ground_y+l,z=z}, {name="sumpf:sumpf"})
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end
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env:add_node({x=x,y=ground_y-2,z=z}, {name="sumpf:sumpf2"})
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for i=-3,-30,-1 do
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local pos = {x=x,y=ground_y+i,z=z}
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if env:get_node(pos).name ~= "air" then
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env:add_node(pos, {name="sumpf:junglestone"})
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else
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break
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end
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end
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end --Dreckseen:
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elseif ground_y
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and env:get_node(ground).name == "default:water_source"
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and env:find_node_near(ground, 2+math.random(3), "group:crumbly") then
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for y=0,-30,-1 do
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local pos = {x=x,y=ground_y+y,z=z}
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if env:get_node(pos).name == "default:water_source" then
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env:add_node(pos, {name="sumpf:dirtywater_source"})
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else
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env:add_node(pos, {name="sumpf:peat"})
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end
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end
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end
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end
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end
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end
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end
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-- Generate ores
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generate_kohle(minp, maxp, seed+0, 1/8/8/8, 3, -31000, 64)
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generate_eisen(minp, maxp, seed+1, 1/12/12/12, 2, -15, 2)
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generate_eisen(minp, maxp, seed+2, 1/9/9/9, 3, -63, -16)
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generate_eisen(minp, maxp, seed+3, 1/7/7/7, 3, -31000, -64)
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generate_kohle(minp, maxp, seed+7, 1/24/24/24, 6, -31000, 0)
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generate_eisen(minp, maxp, seed+6, 1/24/24/24, 6, -31000, -64)
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end)
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