This is a foundation patch for patches to follow.
- use a full short index for mon->cham field.
- The current system of providing CHAM_XXX values
was limited to the 3 bits allocated in the bitfield and invalidated
save/bones if the field was expanded.
- The current system didn't provide an easy backwards change
if multiple monster types wanted to use the bit, there was a one
to one mapping: For instance, if you wanted a CHAM_VAMPIRE,
and you wanted vampires, vampire lords, and Vlad to use it, you
would have to have CHAM_VAMPIRE, CHAM_VAMPIRE_LORD,
and CHAM_VLAD defined to achieve that with the one-to-one backward
mapping.
- This new way just uses the mon[] index in the mon->cham field and
eliminates the need for CHAM_XXX (CHAM_ORDINARY is still used).
- no longer requires the cham_to_pm mappings
For now, the code is conditional on BARGETHROUGH
being defined, while it gets tested further. While behavior is
different with and without BARGETHROUGH defined, savefiles
are the same either way.
After this patch is applied, only the riders have the M3_DISPLACES
bit set, but the Wizard and Vlad probably should too. Any others?
