OK thank you. Another question is:
All the block generated are in mapgen.lua ?
And how can I change the alias, to make my block generated in place of mintest's blocks ?
I tried something:
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-- minetest/default/mapgen.lua
--
-- Aliases for map generator outputs
--
minetest.register_alias("mapgen_air", "air")
minetest.register_alias("mapgen_stone", "default:stone")
minetest.register_alias("mapgen_tree", "default:tree")
minetest.register_alias("mapgen_leaves", "default:leaves")
minetest.register_alias("mapgen_apple", "default:apple")
minetest.register_alias("mapgen_water_source", "default:water_source")
minetest.register_alias("mapgen_dirt", "default:dirt")
minetest.register_alias("mapgen_sand", "default:sand")
minetest.register_alias("mapgen_gravel", "default:gravel")
minetest.register_alias("mapgen_clay", "default:clay")
minetest.register_alias("mapgen_lava_source", "default:lava_source")
minetest.register_alias("mapgen_cobble", "default:cobble")
minetest.register_alias("mapgen_mossycobble", "default:mossycobble")
minetest.register_alias("mapgen_dirt_with_grass", "default:dirt_with_grass")
minetest.register_alias("mapgen_junglegrass", "default:junglegrass")
minetest.register_alias("mapgen_stone_with_coal", "default:stone_with_coal")
minetest.register_alias("mapgen_stone_with_iron", "default:stone_with_iron")
minetest.register_alias("mapgen_mese", "default:mese")
minetest.register_alias("mapgen_desert_sand", "default:desert_sand")
minetest.register_alias("mapgen_desert_stone", "default:desert_stone")
--
-- Ore generation
--
local function generate_ore(name, wherein, minp, maxp, seed, chunks_per_volume, chunk_size, ore_per_chunk, height_min, height_max)
if maxp.y < height_min or minp.y > height_max then
return
end
local y_min = math.max(minp.y, height_min)
local y_max = math.min(maxp.y, height_max)
local volume = (maxp.x-minp.x+1)*(y_max-y_min+1)*(maxp.z-minp.z+1)
local pr = PseudoRandom(seed)
local num_chunks = math.floor(chunks_per_volume * volume)
local inverse_chance = math.floor(chunk_size*chunk_size*chunk_size / ore_per_chunk)
--print("generate_ore num_chunks: "..dump(num_chunks))
for i=1,num_chunks do
local y0 = pr:next(y_min, y_max-chunk_size+1)
if y0 >= height_min and y0 <= height_max then
local x0 = pr:next(minp.x, maxp.x-chunk_size+1)
local z0 = pr:next(minp.z, maxp.z-chunk_size+1)
local p0 = {x=x0, y=y0, z=z0}
for x1=0,chunk_size-1 do
for y1=0,chunk_size-1 do
for z1=0,chunk_size-1 do
if pr:next(1,inverse_chance) == 1 then
local x2 = x0+x1
local y2 = y0+y1
local z2 = z0+z1
local p2 = {x=x2, y=y2, z=z2}
if minetest.env:get_node(p2).name == wherein then
minetest.env:set_node(p2, {name=name})
end
end
end
end
end
end
end
--print("generate_ore done")
end
function default.make_papyrus(pos, size)
for y=0,size-1 do
local p = {x=pos.x, y=pos.y+y, z=pos.z}
minetest.env:set_node(p, {name="default:papyrus"})
end
end
function default.make_cactus(pos, size)
for y=0,size-1 do
local p = {x=pos.x, y=pos.y+y, z=pos.z}
minetest.env:set_node(p, {name="default:cactus"})
end
end
minetest.register_on_generated(function(minp, maxp, seed)
-- Generate regular ores
generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+0, 1/8/8/8, 3, 8, -31000, 64)
generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/12/12/12, 2, 3, -15, 2)
generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/9/9/9, 3, 5, -63, -16)
generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/7/7/7, 3, 5, -31000, -64)
generate_ore("default:mese", "default:stone", minp, maxp, seed+4, 1/16/16/16, 2, 3, -127, -64)
generate_ore("default:mese", "default:stone", minp, maxp, seed+5, 1/9/9/9, 3, 5, -31000,-128)
generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed+7, 1/24/24/24, 6,27, -31000, 0)
generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+6, 1/24/24/24, 6,27, -31000, -64)
if maxp.y >= 2 and minp.y <= 0 then
-- Generate clay
-- Assume X and Z lengths are equal
local divlen = 4
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0+1,divs-1-1 do
for divz=0+1,divs-1-1 do
local cx = minp.x + math.floor((divx+0.5)*divlen)
local cz = minp.z + math.floor((divz+0.5)*divlen)
if minetest.env:get_node({x=cx,y=1,z=cz}).name == "default:water_source" and
minetest.env:get_node({x=cx,y=0,z=cz}).name == "default:sand" then
local is_shallow = true
local num_water_around = 0
if minetest.env:get_node({x=cx-divlen*2,y=1,z=cz+0}).name == "default:water_source" then
num_water_around = num_water_around + 1 end
if minetest.env:get_node({x=cx+divlen*2,y=1,z=cz+0}).name == "default:water_source" then
num_water_around = num_water_around + 1 end
if minetest.env:get_node({x=cx+0,y=1,z=cz-divlen*2}).name == "default:water_source" then
num_water_around = num_water_around + 1 end
if minetest.env:get_node({x=cx+0,y=1,z=cz+divlen*2}).name == "default:water_source" then
num_water_around = num_water_around + 1 end
if num_water_around >= 2 then
is_shallow = false
end
if is_shallow then
for x1=-divlen,divlen do
for z1=-divlen,divlen do
if minetest.env:get_node({x=cx+x1,y=0,z=cz+z1}).name == "default:sand" then
minetest.env:set_node({x=cx+x1,y=0,z=cz+z1}, {name="default:clay"})
end
end
end
end
end
end
end
-- Generate papyrus
local perlin1 = minetest.env:get_perlin(354, 3, 0.7, 100)
-- Assume X and Z lengths are equal
local divlen = 8
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine papyrus amount from perlin noise
local papyrus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 45 - 20)
-- Find random positions for papyrus based on this random
local pr = PseudoRandom(seed+1)
for i=0,papyrus_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
if minetest.env:get_node({x=x,y=1,z=z}).name == "default:dirt_with_grass" and
minetest.env:find_node_near({x=x,y=1,z=z}, 1, "default:water_source") then
default.make_papyrus({x=x,y=2,z=z}, pr:next(2, 4))
end
end
end
end
-- Generate cactuses
local perlin1 = minetest.env:get_perlin(230, 3, 0.6, 100)
-- Assume X and Z lengths are equal
local divlen = 16
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine cactus amount from perlin noise
local cactus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 6 - 3)
-- Find random positions for cactus based on this random
local pr = PseudoRandom(seed+1)
for i=0,cactus_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
-- Find ground level (0...15)
local ground_y = nil
for y=30,0,-1 do
if minetest.env:get_node({x=x,y=y,z=z}).name ~= "air" then
ground_y = y
break
end
end
-- If desert sand, make cactus
if ground_y and minetest.env:get_node({x=x,y=ground_y,z=z}).name == "default:desert_sand" then
default.make_cactus({x=x,y=ground_y+1,z=z}, pr:next(3, 4))
end
end
end
end
-- Generate dry shrubs
local perlin1 = minetest.env:get_perlin(329, 3, 0.6, 100)
-- Assume X and Z lengths are equal
local divlen = 16
local divs = (maxp.x-minp.x)/divlen+1;
for divx=0,divs-1 do
for divz=0,divs-1 do
local x0 = minp.x + math.floor((divx+0)*divlen)
local z0 = minp.z + math.floor((divz+0)*divlen)
local x1 = minp.x + math.floor((divx+1)*divlen)
local z1 = minp.z + math.floor((divz+1)*divlen)
-- Determine cactus amount from perlin noise
local cactus_amount = math.floor(perlin1:get2d({x=x0, y=z0}) * 5 + 0)
-- Find random positions for cactus based on this random
local pr = PseudoRandom(seed+1)
for i=0,cactus_amount do
local x = pr:next(x0, x1)
local z = pr:next(z0, z1)
-- Find ground level (0...15)
local ground_y = nil
for y=30,0,-1 do
if minetest.env:get_node({x=x,y=y,z=z}).name ~= "air" then
ground_y = y
break
end
end
-- If desert sand, make cactus
if ground_y and minetest.env:get_node({x=x,y=ground_y,z=z}).name == "default:desert_sand" then
minetest.env:set_node({x=x,y=ground_y+1,z=z}, {name="default:dry_shrub"})
end
end
end
end
end
end)
minetest.register_on_generated(function(minp, maxp)
for x = minp.x, maxp.x do
for z = minp.z, maxp.z do
for ly = minp.y, maxp.y do
local y = maxp.y + minp.y - ly
local n = minetest.env:get_node({x = x, y = y, z = z})
if n.name == "default:dirt_with_grass" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:grass"})
end
if n.name =="default:dirt_with_grass_footsteps" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:grass"})
end
if n.name == "default:junglegrass" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "air"})
end
if n.name == "default:tree" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:tree1"})
end
if n.name == "default:leaves" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:leaves1"})
end
if n.name == "default:stone_with_coal" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:coal_ore"})
end
if n.name == "default:stone_with_iron" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:iron_ore"})
end
if n.name == "default:mossycobble" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:mossy_cobble"})
end
if n.name == "default:mese" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:redstone_ore"})
end
if n.name == "default:desert_sand" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:sand"})
end
if n.name == "default:desert_stone" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:sandstone"})
end
if n.name == "default:apples" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:leaves2"})
end
if n.name == "default:jungletree" then
minetest.env:add_node({x = x, y = y, z = z}, {name = "default:tree1"})
end
end
end
end
end)
it is almost what I want, I think that I manage all the blocks. But, for some reasons I always get the errors AND the first chunk isn't affected by my function. Why ?
I could teleport the player far away to erase the bug. no ? Is there a way to know which bloc the game is trying to placing ?
Thank you.
EDIT: Where is the file that it modify the dirt into the grass ?
Posted: Tue Jul 03, 2012 10:39