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Add check for unknown nodes.

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* Check if node has a definition table before attempting to evaluate its
  attributes.
This commit is contained in:
kabou 2022-03-09 14:59:49 +01:00
parent f5a8d6d17a
commit 6a69f49fa0
1 changed files with 11 additions and 11 deletions
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22
mods/MAPGEN/tsm_railcorridors/init.lua
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@ -154,16 +154,16 @@ local function SetNodeIfCanBuild(pos, node, check_above, can_replace_rail)
local abovename = minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z}).name local abovename = minetest.get_node({x=pos.x,y=pos.y+1,z=pos.z}).name
local abovedef = minetest.registered_nodes[abovename] local abovedef = minetest.registered_nodes[abovename]
if abovename == "unknown" or abovename == "ignore" or if abovename == "unknown" or abovename == "ignore" or
(abovedef.groups and abovedef.groups.attached_node) or (abovedef and abovedef.groups and abovedef.groups.attached_node) or
-- This is done because cobwebs are often fake liquids -- This is done because cobwebs are often fake liquids
(abovedef.liquidtype ~= "none" and abovename ~= tsm_railcorridors.nodes.cobweb) then (abovedef and abovedef.liquidtype ~= "none" and abovename ~= tsm_railcorridors.nodes.cobweb) then
return false return false
end end
end end
local name = minetest.get_node(pos).name local name = minetest.get_node(pos).name
local def = minetest.registered_nodes[name] local def = minetest.registered_nodes[name]
if name ~= "unknown" and name ~= "ignore" and if name ~= "unknown" and name ~= "ignore" and
((def.is_ground_content and def.liquidtype == "none") or ((def and def.is_ground_content and def.liquidtype == "none") or
name == tsm_railcorridors.nodes.cobweb or name == tsm_railcorridors.nodes.cobweb or
name == tsm_railcorridors.nodes.torch_wall or name == tsm_railcorridors.nodes.torch_wall or
name == tsm_railcorridors.nodes.torch_floor or name == tsm_railcorridors.nodes.torch_floor or
@ -192,7 +192,7 @@ end
local function IsGround(pos) local function IsGround(pos)
local nodename = minetest.get_node(pos).name local nodename = minetest.get_node(pos).name
local nodedef = minetest.registered_nodes[nodename] local nodedef = minetest.registered_nodes[nodename]
return nodename ~= "unknown" and nodename ~= "ignore" and nodedef.is_ground_content and nodedef.walkable and nodedef.liquidtype == "none" return nodename ~= "unknown" and nodename ~= "ignore" and nodedef and nodedef.is_ground_content and nodedef.walkable and nodedef.liquidtype == "none"
end end
-- Returns true if rails are allowed to be placed on top of this node -- Returns true if rails are allowed to be placed on top of this node
@ -200,7 +200,7 @@ local function IsRailSurface(pos)
local nodename = minetest.get_node(pos).name local nodename = minetest.get_node(pos).name
local nodename_above = minetest.get_node({x=pos.x,y=pos.y+2,z=pos.z}).name local nodename_above = minetest.get_node({x=pos.x,y=pos.y+2,z=pos.z}).name
local nodedef = minetest.registered_nodes[nodename] local nodedef = minetest.registered_nodes[nodename]
return nodename ~= "unknown" and nodename ~= "ignore" and nodedef.walkable and (nodedef.node_box == nil or nodedef.node_box.type == "regular") and nodename_above ~= tsm_railcorridors.nodes.rail return nodename ~= "unknown" and nodename ~= "ignore" and nodedef and nodedef.walkable and (nodedef.node_box == nil or nodedef.node_box.type == "regular") and nodename_above ~= tsm_railcorridors.nodes.rail
end end
-- Checks if the node is empty space which requires to be filled by a platform -- Checks if the node is empty space which requires to be filled by a platform
@ -211,7 +211,7 @@ local function NeedsPlatform(pos)
local falling = minetest.get_item_group(node.name, "falling_node") == 1 local falling = minetest.get_item_group(node.name, "falling_node") == 1
return return
-- Node can be replaced if ground content or rail -- Node can be replaced if ground content or rail
(node.name ~= "ignore" and node.name ~= "unknown" and nodedef.is_ground_content) and (node.name ~= "ignore" and node.name ~= "unknown" and nodedef and nodedef.is_ground_content) and
-- Node needs platform if node below is not walkable. -- Node needs platform if node below is not walkable.
-- Unless 2 nodes below there is dirt: This is a special case for the starter cube. -- Unless 2 nodes below there is dirt: This is a special case for the starter cube.
((nodedef.walkable == false and node2.name ~= tsm_railcorridors.nodes.dirt) or ((nodedef.walkable == false and node2.name ~= tsm_railcorridors.nodes.dirt) or
@ -253,7 +253,7 @@ local function Cube(p, radius, node, replace_air_only, wood, post)
if yi == y_top then if yi == y_top then
local topnode = minetest.get_node({x=xi,y=yi+1,z=zi}) local topnode = minetest.get_node({x=xi,y=yi+1,z=zi})
local topdef = minetest.registered_nodes[topnode.name] local topdef = minetest.registered_nodes[topnode.name]
if minetest.get_item_group(topnode.name, "attached_node") ~= 1 and topdef.liquidtype == "none" then if minetest.get_item_group(topnode.name, "attached_node") ~= 1 and topdef and topdef.liquidtype == "none" then
ok = true ok = true
end end
elseif column_last_attached and yi == column_last_attached - 1 then elseif column_last_attached and yi == column_last_attached - 1 then
@ -277,7 +277,7 @@ local function Cube(p, radius, node, replace_air_only, wood, post)
elseif wood and (xi == p.x or zi == p.z) and thisnode.name == wood then elseif wood and (xi == p.x or zi == p.z) and thisnode.name == wood then
local topnode = minetest.get_node({x=xi,y=yi+1,z=zi}) local topnode = minetest.get_node({x=xi,y=yi+1,z=zi})
local topdef = minetest.registered_nodes[topnode.name] local topdef = minetest.registered_nodes[topnode.name]
if topdef.walkable and topnode.name ~= wood then if topdef and topdef.walkable and topnode.name ~= wood then
minetest.set_node({x=xi,y=yi,z=zi}, node) minetest.set_node({x=xi,y=yi,z=zi}, node)
-- Check for torches around the wood and schedule them -- Check for torches around the wood and schedule them
-- for removal -- for removal
@ -429,7 +429,7 @@ local function TryPlaceCobweb(pos, needs_check, side_vector)
local cpos = vector.add(pos, check_vectors[c]) local cpos = vector.add(pos, check_vectors[c])
local cname = minetest.get_node(cpos).name local cname = minetest.get_node(cpos).name
local cdef = minetest.registered_nodes[cname] local cdef = minetest.registered_nodes[cname]
if cname ~= "ignore" and cdef.walkable then if cname ~= "ignore" and cdef and cdef.walkable then
check_passed = true check_passed = true
break break
end end
@ -523,12 +523,12 @@ local function WoodSupport(p, wood, post, torches, dir, torchdir)
local nodedef1 = minetest.registered_nodes[minetest.get_node(pos1).name] local nodedef1 = minetest.registered_nodes[minetest.get_node(pos1).name]
local nodedef2 = minetest.registered_nodes[minetest.get_node(pos2).name] local nodedef2 = minetest.registered_nodes[minetest.get_node(pos2).name]
if nodedef1.walkable then if nodedef1 and nodedef1.walkable then
pos1.y = pos1.y + 1 pos1.y = pos1.y + 1
end end
SetNodeIfCanBuild(pos1, node, true) SetNodeIfCanBuild(pos1, node, true)
if nodedef2.walkable then if nodedef2 and nodedef2.walkable then
pos2.y = pos2.y + 1 pos2.y = pos2.y + 1
end end
SetNodeIfCanBuild(pos2, node, true) SetNodeIfCanBuild(pos2, node, true)