new animation command fshadow {0-6}, so each frame can has a different shadow.
new animation command shadowcoords {x} {z}, so your shadow coords won't need to be same as offset.
If you don't use these 2 commands, leave them alone so they won't cost extra memory.
Authored by: utunnels 2007-12-06
Parent: [r1120]
Child: [r1122]
