Facedir is a node's rotation about the y axis. A node can have either facedir or wallmounted rotation. It is stored in node.param2 where node.paramtype2 = "facedir".

Facedir starts at 0 on the Z axis, then goes up to 3 rotating to X, -Z, and -X.

See also: wallmounted

0 -- +Z axis
1 -- +X axis
2 -- -Z axis
3 -- -X axis