riesenpilz/mapgen.lua
2013-04-24 20:53:20 +02:00

96 lines
3.2 KiB
Lua

local function find_ground(pos, nodes)
for _, evground in ipairs(nodes) do
if minetest.env:get_node(pos).name == evground then
return true
end
end
return false
end
local GROUND = {"default:dirt_with_grass","default:dirt","default:sand","default:desert_sand"}
USUAL_STUFF = {"default:leaves","default:apple","default:tree","default:cactus","default:papyrus"}
minetest.register_on_generated(function(minp, maxp, seed)
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("abortsumpf")
return
end
local divs = (maxp.x-minp.x);
local pr = PseudoRandom(seed+68)
--remove usual stuff
local trees = env:find_nodes_in_area(minp, maxp, USUAL_STUFF)
for i,v in pairs(trees) do
env:remove_node(v)
end
--Information:
local geninfo = "-#- giant mushrooms generate: x=["..minp.x.."; "..maxp.x.."] z=["..minp.z.."; "..maxp.z.."]"
print(geninfo)
minetest.chat_send_all(geninfo)
local smooth = riesenpilz.smooth
for j=0,divs do
for i=0,divs do
local x,z = x0+i,z0+j
--Check if we are in a "riesenpilz biome"
local in_biome = false
local test = perlin1:get2d({x=x, y=z})
--smooth mapgen
if smooth and (test > 0.73 or (test > 0.43 and pr:next(0,29) > (0.73 - test) * 100 )) then
in_biome = true
elseif (not smooth) and test > 0.53 then
in_biome = true
end
if in_biome then
local ground_y = nil --Definition des Bodens:
for y=maxp.y,0,-1 do
if find_ground({x=x,y=y,z=z}, GROUND) then
ground_y = y
break
end
end
if ground_y then
local boden = {x=x,y=ground_y+1,z=z}
if pr:next(1,380) == 1 then
riesenpilz_hybridpilz(boden)
elseif pr:next(1,340) == 10 then
riesenpilz_brauner_minecraftpilz(boden)
elseif pr:next(1,390) == 20 then
riesenpilz_minecraft_fliegenpilz(boden)
end
env:add_node({x=x,y=ground_y,z=z}, {name="riesenpilz:ground"})
for i = -1,-5,-1 do
local pos = {x=x,y=ground_y+i,z=z}
if env:get_node(pos).name == "default:desert_sand" then
env:add_node(pos, {name="default:dirt"})
else
break
end
end
end
end
end
end
end
end)