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Code Issues Releases Wiki Activity

Trunks: Prevent crashing when unknown nodes exist (#9)

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Extension of commit 9ed4771515

Co-authored-by: OgelGames <olliverdc28@gmail.com>
This commit is contained in:
Jordan Leppert 2021-12-16 09:10:36 +00:00 committed by GitHub
parent 1a96ac87a7
commit cb2373f089
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1 changed files with 73 additions and 111 deletions
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trunks/generating.lua
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@ -4,11 +4,13 @@
-- TWiGS -- TWiGS
----------------------------------------------------------------------------------------------- -----------------------------------------------------------------------------------------------
local fakenode = { function check_node_buildable_to(pos)
name = "default:stone", -- could be anything that's guaranteed to exist at mapgen time, and isn't buildable_to local node = minetest.get_node(pos)
param1 = 0, local def = minetest.registered_nodes[node.name]
param2 = 0 if def then
} return def.buildable_to
end
end
abstract_trunks.place_twig = function(pos) abstract_trunks.place_twig = function(pos)
local twig_size = math.random(1,27) local twig_size = math.random(1,27)
@ -23,25 +25,6 @@ abstract_trunks.place_twig = function(pos)
local west = {x=pos.x-1, y=pos.y+1, z=pos.z } local west = {x=pos.x-1, y=pos.y+1, z=pos.z }
local north_west = {x=pos.x-1, y=pos.y+1, z=pos.z+1} local north_west = {x=pos.x-1, y=pos.y+1, z=pos.z+1}
local node_here = minetest.get_node(right_here)
local node_north = minetest.get_node(north)
local node_n_e = minetest.get_node(north_east)
local node_east = minetest.get_node(east)
local node_s_e = minetest.get_node(south_east)
local node_south = minetest.get_node(south)
local node_s_w = minetest.get_node(south_west)
local node_west = minetest.get_node(west)
local node_n_w = minetest.get_node(north_west)
node_north = minetest.registered_nodes[node_north.name] and node_north or fakenode
node_n_e = minetest.registered_nodes[node_n_e.name] and node_n_e or fakenode
node_east = minetest.registered_nodes[node_east.name] and node_east or fakenode
node_s_e = minetest.registered_nodes[node_s_e.name] and node_s_e or fakenode
node_south = minetest.registered_nodes[node_south.name] and node_south or fakenode
node_s_w = minetest.registered_nodes[node_s_w.name] and node_s_w or fakenode
node_west = minetest.registered_nodes[node_west.name] and node_west or fakenode
node_n_w = minetest.registered_nodes[node_n_w.name] and node_n_w or fakenode
-- small twigs -- small twigs
if twig_size <= 16 then if twig_size <= 16 then
minetest.swap_node(right_here, {name="trunks:twig_"..math.random(1,4), param2=math.random(0,3)}) minetest.swap_node(right_here, {name="trunks:twig_"..math.random(1,4), param2=math.random(0,3)})
@ -50,115 +33,115 @@ abstract_trunks.place_twig = function(pos)
if Big_Twigs == true then if Big_Twigs == true then
-- big twig 1 -- big twig 1
if twig_size == 17 then if twig_size == 17 then
if not (minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z+1}).name].buildable_to if not (check_node_buildable_to({x=pos.x+1,y=pos.y,z=pos.z+1})
or minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z}).name].buildable_to) then or check_node_buildable_to({x=pos.x+1,y=pos.y,z=pos.z})) then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(right_here) then
minetest.swap_node(right_here, {name="trunks:twig_5"}) minetest.swap_node(right_here, {name="trunks:twig_5"})
end end
if minetest.registered_nodes[node_n_e.name].buildable_to then if check_node_buildable_to(north_east) then
minetest.swap_node(north_east, {name="trunks:twig_7"}) minetest.swap_node(north_east, {name="trunks:twig_7"})
end end
if minetest.registered_nodes[node_east.name].buildable_to then if check_node_buildable_to(east) then
minetest.swap_node(east, {name="trunks:twig_8"}) minetest.swap_node(east, {name="trunks:twig_8"})
end end
end end
elseif twig_size == 18 then elseif twig_size == 18 then
if not (minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1}).name].buildable_to if not (check_node_buildable_to({x=pos.x+1,y=pos.y,z=pos.z-1})
or minetest.registered_nodes[minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1}).name].buildable_to) then or check_node_buildable_to({x=pos.x,y=pos.y,z=pos.z-1})) then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(right_here) then
minetest.swap_node(right_here, {name="trunks:twig_5", param2=1}) minetest.swap_node(right_here, {name="trunks:twig_5", param2=1})
end end
if minetest.registered_nodes[node_s_e.name].buildable_to then if check_node_buildable_to(south_east) then
minetest.swap_node(south_east, {name="trunks:twig_7", param2=1}) minetest.swap_node(south_east, {name="trunks:twig_7", param2=1})
end end
if minetest.registered_nodes[node_south.name].buildable_to then if check_node_buildable_to(south) then
minetest.swap_node(south, {name="trunks:twig_8", param2=1}) minetest.swap_node(south, {name="trunks:twig_8", param2=1})
end end
end end
elseif twig_size == 19 then elseif twig_size == 19 then
if not (minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1}).name].buildable_to if not (check_node_buildable_to({x=pos.x+1,y=pos.y,z=pos.z-1})
or minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z}).name].buildable_to) then or check_node_buildable_to({x=pos.x-1,y=pos.y,z=pos.z})) then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(right_here) then
minetest.swap_node(right_here, {name="trunks:twig_5", param2=2}) minetest.swap_node(right_here, {name="trunks:twig_5", param2=2})
end end
if minetest.registered_nodes[node_s_w.name].buildable_to then if check_node_buildable_to(south_west) then
minetest.swap_node(south_west, {name="trunks:twig_7", param2=2}) minetest.swap_node(south_west, {name="trunks:twig_7", param2=2})
end end
if minetest.registered_nodes[node_west.name].buildable_to then if check_node_buildable_to(west) then
minetest.swap_node(west, {name="trunks:twig_8", param2=2}) minetest.swap_node(west, {name="trunks:twig_8", param2=2})
end end
end end
elseif twig_size == 20 then elseif twig_size == 20 then
if not (minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z+1}).name].buildable_to if not (check_node_buildable_to({x=pos.x-1,y=pos.y,z=pos.z+1})
or minetest.registered_nodes[minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1}).name].buildable_to) then or check_node_buildable_to({x=pos.x,y=pos.y,z=pos.z+1})) then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(right_here) then
minetest.swap_node(right_here, {name="trunks:twig_5", param2=3}) minetest.swap_node(right_here, {name="trunks:twig_5", param2=3})
end end
if minetest.registered_nodes[node_n_w.name].buildable_to then if check_node_buildable_to(north_west) then
minetest.swap_node(north_west, {name="trunks:twig_7", param2=3}) minetest.swap_node(north_west, {name="trunks:twig_7", param2=3})
end end
if minetest.registered_nodes[node_north.name].buildable_to then if check_node_buildable_to(north) then
minetest.swap_node(north, {name="trunks:twig_8", param2=3}) minetest.swap_node(north, {name="trunks:twig_8", param2=3})
end end
end end
-- big twig 2 -- big twig 2
elseif twig_size == 21 then elseif twig_size == 21 then
if not (minetest.registered_nodes[minetest.get_node({x=pos.x,y=pos.y,z=pos.z+1}).name].buildable_to if not (check_node_buildable_to({x=pos.x,y=pos.y,z=pos.z+1})
or minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z+1}).name].buildable_to) then or check_node_buildable_to({x=pos.x+1,y=pos.y,z=pos.z+1})) then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(right_here) then
minetest.swap_node(right_here, {name="trunks:twig_9"}) minetest.swap_node(right_here, {name="trunks:twig_9"})
end end
if minetest.registered_nodes[node_north.name].buildable_to then if check_node_buildable_to(north) then
minetest.swap_node(north, {name="trunks:twig_10"}) minetest.swap_node(north, {name="trunks:twig_10"})
end end
if minetest.registered_nodes[node_n_e.name].buildable_to then if check_node_buildable_to(north_east) then
minetest.swap_node(north_east, {name="trunks:twig_11"}) minetest.swap_node(north_east, {name="trunks:twig_11"})
end end
end end
elseif twig_size == 22 then elseif twig_size == 22 then
if not (minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z}).name].buildable_to if not (check_node_buildable_to({x=pos.x+1,y=pos.y,z=pos.z})
or minetest.registered_nodes[minetest.get_node({x=pos.x+1,y=pos.y,z=pos.z-1}).name].buildable_to) then or check_node_buildable_to({x=pos.x+1,y=pos.y,z=pos.z-1})) then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(right_here) then
minetest.swap_node(right_here, {name="trunks:twig_9", param2=1}) minetest.swap_node(right_here, {name="trunks:twig_9", param2=1})
end end
if minetest.registered_nodes[node_east.name].buildable_to then if check_node_buildable_to(east) then
minetest.swap_node(east, {name="trunks:twig_10", param2=1}) minetest.swap_node(east, {name="trunks:twig_10", param2=1})
end end
if minetest.registered_nodes[node_s_e.name].buildable_to then if check_node_buildable_to(south_east) then
minetest.swap_node(south_east, {name="trunks:twig_11", param2=1}) minetest.swap_node(south_east, {name="trunks:twig_11", param2=1})
end end
end end
elseif twig_size == 23 then elseif twig_size == 23 then
if not (minetest.registered_nodes[minetest.get_node({x=pos.x,y=pos.y,z=pos.z-1}).name].buildable_to if not (check_node_buildable_to({x=pos.x,y=pos.y,z=pos.z-1})
or minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z-1}).name].buildable_to) then or check_node_buildable_to({x=pos.x-1,y=pos.y,z=pos.z-1})) then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(right_here) then
minetest.swap_node(right_here, {name="trunks:twig_9", param2=2}) minetest.swap_node(right_here, {name="trunks:twig_9", param2=2})
end end
if minetest.registered_nodes[node_south.name].buildable_to then if check_node_buildable_to(south) then
minetest.swap_node(south, {name="trunks:twig_10", param2=2}) minetest.swap_node(south, {name="trunks:twig_10", param2=2})
end end
if minetest.registered_nodes[node_s_w.name].buildable_to then if check_node_buildable_to(south_west) then
minetest.swap_node(south_west, {name="trunks:twig_11", param2=2}) minetest.swap_node(south_west, {name="trunks:twig_11", param2=2})
end end
end end
elseif twig_size == 24 then elseif twig_size == 24 then
if not (minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z}).name].buildable_to if not (check_node_buildable_to({x=pos.x-1,y=pos.y,z=pos.z})
or minetest.registered_nodes[minetest.get_node({x=pos.x-1,y=pos.y,z=pos.z+1}).name].buildable_to) then or check_node_buildable_to({x=pos.x-1,y=pos.y,z=pos.z+1})) then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(right_here) then
minetest.swap_node(right_here, {name="trunks:twig_9", param2=3}) minetest.swap_node(right_here, {name="trunks:twig_9", param2=3})
end end
if minetest.registered_nodes[node_west.name].buildable_to then if check_node_buildable_to(west) then
minetest.swap_node(west, {name="trunks:twig_10", param2=3}) minetest.swap_node(west, {name="trunks:twig_10", param2=3})
end end
if minetest.registered_nodes[node_n_w.name].buildable_to then if check_node_buildable_to(north_west) then
minetest.swap_node(north_west, {name="trunks:twig_11", param2=3}) minetest.swap_node(north_west, {name="trunks:twig_11", param2=3})
end end
end end
@ -256,16 +239,7 @@ abstract_trunks.place_trunk = function(pos)
local east = {x=pos.x+1, y=pos.y+1, z=pos.z} local east = {x=pos.x+1, y=pos.y+1, z=pos.z}
local east2 = {x=pos.x+2, y=pos.y+1, z=pos.z} local east2 = {x=pos.x+2, y=pos.y+1, z=pos.z}
local node_here = minetest.get_node(right_here) if check_node_buildable_to(right_here) then -- instead of check_air = true,
local node_north = minetest.get_node(north)
local node_north2 = minetest.get_node(north2)
local node_south = minetest.get_node(south)
local node_south2 = minetest.get_node(south2)
local node_west = minetest.get_node(west)
local node_west2 = minetest.get_node(west2)
local node_east = minetest.get_node(east)
local node_east2 = minetest.get_node(east2)
if minetest.registered_nodes[node_here.name].buildable_to then -- instead of check_air = true,
for i in pairs(TRuNKS) do for i in pairs(TRuNKS) do
local MoD = TRuNKS[i][1] local MoD = TRuNKS[i][1]
local TRuNK = TRuNKS[i][2] local TRuNK = TRuNKS[i][2]
@ -282,63 +256,63 @@ abstract_trunks.place_trunk = function(pos)
end end
elseif trunk_type == 2 and Horizontal_Trunks == true then elseif trunk_type == 2 and Horizontal_Trunks == true then
if minetest.get_modpath(MoD) ~= nil then if minetest.get_modpath(MoD) ~= nil then
if minetest.registered_nodes[node_north.name].buildable_to then if check_node_buildable_to(north) then
minetest.swap_node(north, {name=MoD..":"..TRuNK, param2=4}) minetest.swap_node(north, {name=MoD..":"..TRuNK, param2=4})
end end
if length >= 4 and minetest.registered_nodes[node_north2.name].buildable_to then if length >= 4 and check_node_buildable_to(north2) then
minetest.swap_node(north2, {name=MoD..":"..TRuNK, param2=4}) minetest.swap_node(north2, {name=MoD..":"..TRuNK, param2=4})
end end
minetest.swap_node(right_here, {name=MoD..":"..TRuNK, param2=4}) minetest.swap_node(right_here, {name=MoD..":"..TRuNK, param2=4})
if minetest.registered_nodes[node_south.name].buildable_to then if check_node_buildable_to(south) then
minetest.swap_node(south, {name=MoD..":"..TRuNK, param2=4}) minetest.swap_node(south, {name=MoD..":"..TRuNK, param2=4})
end end
if length == 5 and minetest.registered_nodes[node_south2.name].buildable_to then if length == 5 and check_node_buildable_to(south2) then
minetest.swap_node(south2, {name=MoD..":"..TRuNK, param2=4}) minetest.swap_node(south2, {name=MoD..":"..TRuNK, param2=4})
end end
else else
if minetest.registered_nodes[node_north.name].buildable_to then if check_node_buildable_to(north) then
minetest.swap_node(north, {name="default:tree", param2=4}) minetest.swap_node(north, {name="default:tree", param2=4})
end end
if length >= 4 and minetest.registered_nodes[node_north2.name].buildable_to then if length >= 4 and check_node_buildable_to(north2) then
minetest.swap_node(north2, {name="default:tree", param2=4}) minetest.swap_node(north2, {name="default:tree", param2=4})
end end
minetest.swap_node(right_here, {name="default:tree", param2=4}) minetest.swap_node(right_here, {name="default:tree", param2=4})
if minetest.registered_nodes[node_south.name].buildable_to then if check_node_buildable_to(south) then
minetest.swap_node(south, {name="default:tree", param2=4}) minetest.swap_node(south, {name="default:tree", param2=4})
end end
if length == 5 and minetest.registered_nodes[node_south2.name].buildable_to then if length == 5 and check_node_buildable_to(south2) then
minetest.swap_node(south2, {name="default:tree", param2=4}) minetest.swap_node(south2, {name="default:tree", param2=4})
end end
end end
elseif trunk_type == 3 and Horizontal_Trunks == true then elseif trunk_type == 3 and Horizontal_Trunks == true then
if minetest.get_modpath(MoD) ~= nil then if minetest.get_modpath(MoD) ~= nil then
if minetest.registered_nodes[node_west.name].buildable_to then if check_node_buildable_to(west) then
minetest.swap_node(west, {name=MoD..":"..TRuNK, param2=12}) minetest.swap_node(west, {name=MoD..":"..TRuNK, param2=12})
end end
if length >= 4 and minetest.registered_nodes[node_west2.name].buildable_to then if length >= 4 and check_node_buildable_to(west2) then
minetest.swap_node(west2, {name=MoD..":"..TRuNK, param2=12}) minetest.swap_node(west2, {name=MoD..":"..TRuNK, param2=12})
end end
minetest.swap_node(right_here, {name=MoD..":"..TRuNK, param2=12}) minetest.swap_node(right_here, {name=MoD..":"..TRuNK, param2=12})
if minetest.registered_nodes[node_east.name].buildable_to then if check_node_buildable_to(east) then
minetest.swap_node(east, {name=MoD..":"..TRuNK, param2=12}) minetest.swap_node(east, {name=MoD..":"..TRuNK, param2=12})
end end
if length == 5 and minetest.registered_nodes[node_east2.name].buildable_to then if length == 5 and check_node_buildable_to(east2) then
minetest.swap_node(east2, {name=MoD..":"..TRuNK, param2=12}) minetest.swap_node(east2, {name=MoD..":"..TRuNK, param2=12})
end end
else else
if minetest.registered_nodes[node_west.name].buildable_to then if check_node_buildable_to(west) then
minetest.swap_node(west, {name="default:tree", param2=12}) minetest.swap_node(west, {name="default:tree", param2=12})
end end
if length >= 4 and minetest.registered_nodes[node_west2.name].buildable_to then if length >= 4 and check_node_buildable_to(west2) then
minetest.swap_node(west2, {name="default:tree", param2=12}) minetest.swap_node(west2, {name="default:tree", param2=12})
end end
minetest.swap_node(right_here, {name="default:tree", param2=12}) minetest.swap_node(right_here, {name="default:tree", param2=12})
if minetest.registered_nodes[node_east.name].buildable_to then if check_node_buildable_to(east) then
minetest.swap_node(east, {name="default:tree", param2=12}) minetest.swap_node(east, {name="default:tree", param2=12})
end end
if length == 5 and minetest.registered_nodes[node_east2.name].buildable_to then if length == 5 and check_node_buildable_to(east2) then
minetest.swap_node(east2, {name="default:tree", param2=12}) minetest.swap_node(east2, {name="default:tree", param2=12})
end end
end end
@ -413,17 +387,9 @@ abstract_trunks.grow_moss_on_trunk = function(pos)
local at_side_e = {x=pos.x+1, y=pos.y, z=pos.z} local at_side_e = {x=pos.x+1, y=pos.y, z=pos.z}
local at_side_s = {x=pos.x, y=pos.y, z=pos.z-1} local at_side_s = {x=pos.x, y=pos.y, z=pos.z-1}
local at_side_w = {x=pos.x-1, y=pos.y, z=pos.z} local at_side_w = {x=pos.x-1, y=pos.y, z=pos.z}
local undrneath = {x=pos.x, y=pos.y-1, z=pos.z}
local node_here = minetest.get_node(on_ground)
local node_north = minetest.get_node(at_side_n)
local node_east = minetest.get_node(at_side_e)
local node_south = minetest.get_node(at_side_s)
local node_west = minetest.get_node(at_side_w)
local node_under = minetest.get_node(undrneath)
--if minetest.get_item_group(node_under.name, "tree") < 1 then --if minetest.get_item_group(node_under.name, "tree") < 1 then
if minetest.registered_nodes[node_here.name].buildable_to then if check_node_buildable_to(on_ground) then
local moss_type = math.random(1,41) local moss_type = math.random(1,41)
local rot = math.random(0,3) local rot = math.random(0,3)
if moss_type == 1 then if moss_type == 1 then
@ -432,7 +398,7 @@ abstract_trunks.grow_moss_on_trunk = function(pos)
minetest.swap_node(on_ground, {name="trunks:moss_plain_"..rot, param2=1}) minetest.swap_node(on_ground, {name="trunks:moss_plain_"..rot, param2=1})
end end
end end
if minetest.registered_nodes[node_north.name].buildable_to then if check_node_buildable_to(at_side_n) then
local moss_type = math.random(1,31) -- cliche of more moss at north local moss_type = math.random(1,31) -- cliche of more moss at north
local rot = math.random(0,3) local rot = math.random(0,3)
if moss_type == 1 then if moss_type == 1 then
@ -441,7 +407,7 @@ abstract_trunks.grow_moss_on_trunk = function(pos)
minetest.swap_node(at_side_n, {name="trunks:moss_plain_"..rot, param2=5}) minetest.swap_node(at_side_n, {name="trunks:moss_plain_"..rot, param2=5})
end end
end end
if minetest.registered_nodes[node_east.name].buildable_to then if check_node_buildable_to(at_side_e) then
local moss_type = math.random(1,41) local moss_type = math.random(1,41)
local rot = math.random(0,3) local rot = math.random(0,3)
if moss_type == 1 then if moss_type == 1 then
@ -450,7 +416,7 @@ abstract_trunks.grow_moss_on_trunk = function(pos)
minetest.swap_node(at_side_e, {name="trunks:moss_plain_"..rot, param2=3}) minetest.swap_node(at_side_e, {name="trunks:moss_plain_"..rot, param2=3})
end end
end end
if minetest.registered_nodes[node_south.name].buildable_to then if check_node_buildable_to(at_side_s) then
local moss_type = math.random(1,41) local moss_type = math.random(1,41)
local rot = math.random(0,3) local rot = math.random(0,3)
if moss_type == 1 then if moss_type == 1 then
@ -459,7 +425,7 @@ abstract_trunks.grow_moss_on_trunk = function(pos)
minetest.swap_node(at_side_s, {name="trunks:moss_plain_"..rot, param2=4}) minetest.swap_node(at_side_s, {name="trunks:moss_plain_"..rot, param2=4})
end end
end end
if minetest.registered_nodes[node_west.name].buildable_to then if check_node_buildable_to(at_side_w) then
local moss_type = math.random(1,41) local moss_type = math.random(1,41)
local rot = math.random(0,3) local rot = math.random(0,3)
if moss_type == 1 then if moss_type == 1 then
@ -520,10 +486,6 @@ abstract_trunks.grow_roots = function(pos)
local node_here = minetest.get_node(right_here) local node_here = minetest.get_node(right_here)
local node_below = minetest.get_node(below) local node_below = minetest.get_node(below)
local node_north = minetest.get_node(north)
local node_east = minetest.get_node(east)
local node_south = minetest.get_node(south)
local node_west = minetest.get_node(west)
for i in pairs(TRuNKS) do for i in pairs(TRuNKS) do
local MoD = TRuNKS[i][1] local MoD = TRuNKS[i][1]
@ -532,16 +494,16 @@ abstract_trunks.grow_roots = function(pos)
and node_here.name == MoD..":"..TRuNK and node_here.name == MoD..":"..TRuNK
and string.find(node_below.name, "dirt") and string.find(node_below.name, "dirt")
and node_here.param2 == 0 then and node_here.param2 == 0 then
if minetest.registered_nodes[node_north.name].buildable_to then if check_node_buildable_to(north) then
minetest.swap_node(north, {name="trunks:"..TRuNK.."root", param2=2}) minetest.swap_node(north, {name="trunks:"..TRuNK.."root", param2=2})
end end
if minetest.registered_nodes[node_east.name].buildable_to then if check_node_buildable_to(east) then
minetest.swap_node(east, {name="trunks:"..TRuNK.."root", param2=3}) minetest.swap_node(east, {name="trunks:"..TRuNK.."root", param2=3})
end end
if minetest.registered_nodes[node_south.name].buildable_to then if check_node_buildable_to(south) then
minetest.swap_node(south, {name="trunks:"..TRuNK.."root", param2=0}) minetest.swap_node(south, {name="trunks:"..TRuNK.."root", param2=0})
end end
if minetest.registered_nodes[node_west.name].buildable_to then if check_node_buildable_to(west) then
minetest.swap_node(west, {name="trunks:"..TRuNK.."root", param2=1}) minetest.swap_node(west, {name="trunks:"..TRuNK.."root", param2=1})
end end
end end