mirror of
https://github.com/mt-mods/biome_lib.git
synced 2024-11-12 13:40:22 +01:00
75 lines
2.9 KiB
Lua
75 lines
2.9 KiB
Lua
|
|
-- function to decide if a node has a wall that's in verticals_list{}
|
|
-- returns wall direction of valid node, or nil if invalid.
|
|
|
|
function biome_lib:find_adjacent_wall(pos, verticals, randomflag)
|
|
local verts = dump(verticals)
|
|
if randomflag then
|
|
local walltab = {}
|
|
|
|
if string.find(verts, minetest.get_node({ x=pos.x-1, y=pos.y, z=pos.z }).name) then walltab[#walltab + 1] = 3 end
|
|
if string.find(verts, minetest.get_node({ x=pos.x+1, y=pos.y, z=pos.z }).name) then walltab[#walltab + 1] = 2 end
|
|
if string.find(verts, minetest.get_node({ x=pos.x , y=pos.y, z=pos.z-1 }).name) then walltab[#walltab + 1] = 5 end
|
|
if string.find(verts, minetest.get_node({ x=pos.x , y=pos.y, z=pos.z+1 }).name) then walltab[#walltab + 1] = 4 end
|
|
|
|
if #walltab > 0 then return walltab[math.random(1, #walltab)] end
|
|
|
|
else
|
|
if string.find(verts, minetest.get_node({ x=pos.x-1, y=pos.y, z=pos.z }).name) then return 3 end
|
|
if string.find(verts, minetest.get_node({ x=pos.x+1, y=pos.y, z=pos.z }).name) then return 2 end
|
|
if string.find(verts, minetest.get_node({ x=pos.x , y=pos.y, z=pos.z-1 }).name) then return 5 end
|
|
if string.find(verts, minetest.get_node({ x=pos.x , y=pos.y, z=pos.z+1 }).name) then return 4 end
|
|
end
|
|
return nil
|
|
end
|
|
|
|
-- Function to search downward from the given position, looking for the first
|
|
-- node that matches the ground table. Returns the new position, or nil if
|
|
-- height limit is exceeded before finding it.
|
|
|
|
function biome_lib:search_downward(pos, heightlimit, ground)
|
|
for i = 0, heightlimit do
|
|
if string.find(dump(ground), minetest.get_node({x=pos.x, y=pos.y-i, z = pos.z}).name) then
|
|
return {x=pos.x, y=pos.y-i, z = pos.z}
|
|
end
|
|
end
|
|
return false
|
|
end
|
|
|
|
function biome_lib:find_open_side(pos)
|
|
if minetest.get_node({ x=pos.x-1, y=pos.y, z=pos.z }).name == "air" then
|
|
return {newpos = { x=pos.x-1, y=pos.y, z=pos.z }, facedir = 2}
|
|
end
|
|
if minetest.get_node({ x=pos.x+1, y=pos.y, z=pos.z }).name == "air" then
|
|
return {newpos = { x=pos.x+1, y=pos.y, z=pos.z }, facedir = 3}
|
|
end
|
|
if minetest.get_node({ x=pos.x, y=pos.y, z=pos.z-1 }).name == "air" then
|
|
return {newpos = { x=pos.x, y=pos.y, z=pos.z-1 }, facedir = 4}
|
|
end
|
|
if minetest.get_node({ x=pos.x, y=pos.y, z=pos.z+1 }).name == "air" then
|
|
return {newpos = { x=pos.x, y=pos.y, z=pos.z+1 }, facedir = 5}
|
|
end
|
|
return nil
|
|
end
|
|
|
|
-- "Record" the map chunks being generated by the core mapgen,
|
|
-- split into individual mapblocks to reduce lag
|
|
|
|
minetest.register_on_generated(function(minp, maxp, blockseed)
|
|
for x = 0, 4 do
|
|
local minx = minp.x + x*16
|
|
for y = 0, 4 do
|
|
local miny = minp.y + y*16
|
|
for z = 0, 4 do
|
|
local minz = minp.z + z*16
|
|
|
|
local bmin = {x=minx, y=miny, z=minz}
|
|
local bmax = {x=minx + 15, y=miny + 15, z=minz + 15}
|
|
|
|
biome_lib.blocklist_aircheck[#biome_lib.blocklist_aircheck + 1] = { bmin, bmax }
|
|
biome_lib.blocklist_no_aircheck[#biome_lib.blocklist_no_aircheck + 1] = { bmin, bmax }
|
|
end
|
|
end
|
|
end
|
|
end)
|