adjust price of vermin swarms

[myk002]

divide by 10000

[quietust]

I don't believe this is correct - DF's item value code doesn't have a special case for vermin colonies, just PETVALUE_DIVISOR which happens to be 1000 for honey bees.

Edit: looking at the disassembly, the only things missing from the original logic were:

1. If mat_subtype is -1, fetch caste 0 instead of aborting
2. If the divided value drops down to zero, round it up to 1

[quietust]

Change is incorrect - the actual game only checks petvalue_divisor and does not check the VERMIN_SOIL_COLONY flag at all.

[myk002]

So the issue here is then that bees have a matgloss of -1, which cannot be used as a caste index. What should I do exactly in that case?

[quietust]

In that case, the game itself uses caste 0 instead, which it looks like we're now doing.