somehow greatly decrease ground generating delay and fix biome size: perlin noise hills look like sinus curve hills, not like prongs

This commit is contained in:
HybridDog 2015-06-21 10:41:11 +02:00
parent b6b14c5570
commit df794632c2
2 changed files with 49 additions and 88 deletions

View File

@ -74,15 +74,25 @@ local function say_info(info)
minetest.chat_send_all(info) minetest.chat_send_all(info)
end end
local riesenpilz_rarity = riesenpilz.mapgen_rarity -- perlin noise "hills" are not peaks but looking like sinus curve
local riesenpilz_size = riesenpilz.mapgen_size local function upper_rarity(rarity)
local smooth_trans_size = riesenpilz.smooth_trans_size return math.sign(rarity)*math.sin(math.abs(rarity)*math.pi/2)
end
local nosmooth_rarity = 1-riesenpilz_rarity/50 local rarity = riesenpilz.mapgen_rarity
local perlin_scale = riesenpilz_size*100/riesenpilz_rarity local riesenpilz_size = riesenpilz.mapgen_size
local smooth_rarity_max = nosmooth_rarity+smooth_trans_size*2/perlin_scale
local smooth_rarity_min = nosmooth_rarity-smooth_trans_size/perlin_scale local nosmooth_rarity = 1-rarity/50
local smooth_rarity_dif = smooth_rarity_max-smooth_rarity_min local perlin_scale = riesenpilz_size*100/rarity
local smooth_rarity_max, smooth_rarity_min, smooth_rarity_dif
local smooth = riesenpilz.smooth
if smooth then
local smooth_trans_size = riesenpilz.smooth_trans_size
smooth_rarity_max = upper_rarity(nosmooth_rarity+smooth_trans_size*2/perlin_scale)
smooth_rarity_min = upper_rarity(nosmooth_rarity-smooth_trans_size/perlin_scale)
smooth_rarity_dif = smooth_rarity_max-smooth_rarity_min
end
nosmooth_rarity = upper_rarity(nosmooth_rarity)
--local USUAL_STUFF = {"default:leaves","default:apple","default:tree","default:cactus","default:papyrus"} --local USUAL_STUFF = {"default:leaves","default:apple","default:tree","default:cactus","default:papyrus"}
@ -115,23 +125,6 @@ minetest.register_on_generated(function(minp, maxp, seed)
end end
end end
--[[if not (perlin1:get2d({x=x0, y=z0}) > 0.53) and not (perlin1:get2d({x=x1, y=z1}) > 0.53)
and not (perlin1:get2d({x=x0, y=z1}) > 0.53) and not (perlin1:get2d({x=x1, y=z0}) > 0.53)
and not (perlin1:get2d({x=(x1-x0)/2, y=(z1-z0)/2}) > 0.53) then
if not riesenpilz.always_generate
and not ( perlin1:get2d( {x=x0, y=z0} ) > nosmooth_rarity ) --top left
and not ( perlin1:get2d( { x = x0 + ( (x1-x0)/2), y=z0 } ) > nosmooth_rarity )--top middle
and not (perlin1:get2d({x=x1, y=z1}) > nosmooth_rarity) --bottom right
and not (perlin1:get2d({x=x1, y=z0+((z1-z0)/2)}) > nosmooth_rarity) --right middle
and not (perlin1:get2d({x=x0, y=z1}) > nosmooth_rarity) --bottom left
and not (perlin1:get2d({x=x1, y=z0}) > nosmooth_rarity) --top right
and not (perlin1:get2d({x=x0+((x1-x0)/2), y=z1}) > nosmooth_rarity) --left middle
and not (perlin1:get2d({x=(x1-x0)/2, y=(z1-z0)/2}) > nosmooth_rarity) --middle
and not (perlin1:get2d({x=x0, y=z1+((z1-z0)/2)}) > nosmooth_rarity) then --bottom middle
return
end]]
local t1 = os.clock() local t1 = os.clock()
riesenpilz.inform("tries to generate a giant mushroom biome at: x=["..minp.x.."; "..maxp.x.."]; y=["..minp.y.."; "..maxp.y.."]; z=["..minp.z.."; "..maxp.z.."]", 2) riesenpilz.inform("tries to generate a giant mushroom biome at: x=["..minp.x.."; "..maxp.x.."]; y=["..minp.y.."; "..maxp.y.."]; z=["..minp.z.."; "..maxp.z.."]", 2)
@ -164,9 +157,6 @@ minetest.register_on_generated(function(minp, maxp, seed)
env:remove_node(v) env:remove_node(v)
end]] end]]
local smooth = riesenpilz.smooth
for j=0,divs do for j=0,divs do
for i=0,divs do for i=0,divs do
local x,z = x0+i,z0+j local x,z = x0+i,z0+j
@ -185,30 +175,41 @@ minetest.register_on_generated(function(minp, maxp, seed)
) then ) then
in_biome = true in_biome = true
end end
elseif (not smooth) elseif test > nosmooth_rarity then
and test > nosmooth_rarity then
in_biome = true in_biome = true
end end
if in_biome then if in_biome then
local ground_y = nil --Definition des Bodens: local ymin = math.max(1, minp.y) -- -1
-- for y=maxp.y,0,-1 do
for y=maxp.y,1,-1 do -- skip the air part
local p_pos = area:index(x, y, z) local ground
local d_p_pos = data[p_pos] for y = maxp.y,ymin,-1 do
for _,nam in pairs(c.USUAL_STUFF) do --remove usual stuff if data[area:index(x, y, z)] ~= c.air then
if d_p_pos == nam then ground = y
data[p_pos] = c.air break
p_pos = nil end
end
local ground_y
if ground then
for y = ground,ymin,-1 do
local p_pos = area:index(x, y, z)
local d_p_pos = data[p_pos]
for _,nam in pairs(c.USUAL_STUFF) do --remove usual stuff
if d_p_pos == nam then
data[p_pos] = c.air
p_pos = nil
break
end
end
if p_pos --else search ground_y
and find_ground(d_p_pos, c.GROUND) then
ground_y = y
break break
end end
end end
if p_pos --else search ground_y
and find_ground(d_p_pos, c.GROUND) then
ground_y = y
break
end
end end
if ground_y then if ground_y then
data[area:index(x, ground_y, z)] = c.ground data[area:index(x, ground_y, z)] = c.ground
@ -289,49 +290,9 @@ minetest.register_on_generated(function(minp, maxp, seed)
vm:set_lighting({day=0, night=0}) vm:set_lighting({day=0, night=0})
vm:calc_lighting() vm:calc_lighting()
vm:write_to_map() vm:write_to_map()
data = nil
area = nil
riesenpilz.inform("data set", 2, t2) riesenpilz.inform("data set", 2, t2)
riesenpilz.inform("done", 1, t1) riesenpilz.inform("done", 1, t1)
end) end)
--[[ if maxp.y < -10 then
local x0,z0,x1,z1 = minp.x,minp.z,maxp.x,maxp.z -- Assume X and Z lengths are equal
local env = minetest.env --Should make things a bit faster.
local perlin1 = env:get_perlin(11,3, 0.5, 200) --Get map specific perlin
--[if not (perlin1:get2d({x=x0, y=z0}) > 0.53) and not (perlin1:get2d({x=x1, y=z1}) > 0.53)
and not (perlin1:get2d({x=x0, y=z1}) > 0.53) and not (perlin1:get2d({x=x1, y=z0}) > 0.53)
and not (perlin1:get2d({x=(x1-x0)/2, y=(z1-z0)/2}) > 0.53) then]
if not ( perlin1:get2d( {x=x0, y=z0} ) > 0.53 ) --top left
and not ( perlin1:get2d( { x = x0 + ( (x1-x0)/2), y=z0 } ) > 0.53 )--top middle
and not (perlin1:get2d({x=x1, y=z1}) > 0.53) --bottom right
and not (perlin1:get2d({x=x1, y=z0+((z1-z0)/2)}) > 0.53) --right middle
and not (perlin1:get2d({x=x0, y=z1}) > 0.53) --bottom left
and not (perlin1:get2d({x=x1, y=z0}) > 0.53) --top right
and not (perlin1:get2d({x=x0+((x1-x0)/2), y=z1}) > 0.53) --left middle
and not (perlin1:get2d({x=(x1-x0)/2, y=(z1-z0)/2}) > 0.53) --middle
and not (perlin1:get2d({x=x0, y=z1+((z1-z0)/2)}) > 0.53) then --bottom middle
print("abortriesenpilz")
return
end
local divs = (maxp.x-minp.x);
local pr = PseudoRandom(seed+68)
for j=0,divs do
for i=0,divs do
local x,z = x0+i,z0+j
for y=minp.y,maxp.y,1 do
local pos = {x=x, y=y, z=z}
if env:get_node(pos).name == "air"
and env:get_node({x=x, y=y-1, z=z}).name == "default:stone"
and pr:next(1,40) == 33
and env:find_node_near(pos, 4, "group:igniter")
and not env:find_node_near(pos, 3, "group:igniter") then
env:add_node(pos, {name="riesenpilz:lavashroom"})
end
end
end
end
end
end)]]

View File

@ -9,10 +9,10 @@ riesenpilz.always_generate = false
riesenpilz.smooth = true riesenpilz.smooth = true
--rarity in % --rarity in %
riesenpilz.mapgen_rarity = 0.1 riesenpilz.mapgen_rarity = 0.4
--size of the generated... (has an effect to the rarity, too) --size of the generated... (has an effect to the rarity, too)
riesenpilz.mapgen_size = 50 riesenpilz.mapgen_size = 200
--approximate size of smooth transitions --approximate size of smooth transitions
riesenpilz.smooth_trans_size = 2 riesenpilz.smooth_trans_size = 2