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-rw-r--r--builtin/game/falling.lua6
1 files changed, 5 insertions, 1 deletions
diff --git a/builtin/game/falling.lua b/builtin/game/falling.lua
index fa7ff24bc..4b16a0586 100644
--- a/builtin/game/falling.lua
+++ b/builtin/game/falling.lua
@@ -130,7 +130,11 @@ function check_attached_node(p, n)
local def = core.registered_nodes[n.name]
local d = {x = 0, y = 0, z = 0}
if def.paramtype2 == "wallmounted" then
- d = core.wallmounted_to_dir(n.param2)
+ -- The fallback vector here is in case 'wallmounted to dir' is nil due
+ -- to voxelmanip placing a wallmounted node without resetting a
+ -- pre-existing param2 value that is out-of-range for wallmounted.
+ -- The fallback vector corresponds to param2 = 0.
+ d = core.wallmounted_to_dir(n.param2) or {x = 0, y = 1, z = 0}
else
d.y = -1
end