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