Goal: write a little program that will check the monster file for consistency,
	since I am tired of doing this manually; the comments below detail
	everything that the program will verify

****************

Creature classification scheme

dragon: d, D
	never invisible, can't open doors, never phase, never eats others,
	never pick up objects, never multiply, carry objects/gold, breath
	weapons, cast spells, hurt by slay dragon, hurt by slay evil, can be
	slept, seen by infravision, young/mature 20% random movement

humanoid: h, H, k, n, o, p, P, T, U, y, Y
	can open doors, never eats others, all that carry treasure pick up obj,
	never multiply, h/U/Y and some people don't carry treasure,
	some cast spells, no breath weapons, all except some humans evil,
	hurt by slay evil, can be slept, seen by infravision, never random
	movement (except 0 level humans which are all 20% random)

undead: G, L, M, s, V, W, Z
	only G invisible, all except s/Z open doors, only G/W phase,
	never eats others, only G picks up objects, never multiply,
	only s/Z do not carry objects/gold, some cast spells,
	no breath weapons, all evil except s/Z, hurt by slay evil,
	hurt by slay undead, can't be slept, never seen by infravision,
	G very random movement, W 20% random movement, others never random
	movement

animal: a, A, b, c, f, F, j, K, l, r, R, S, t, w
	only one of a/c invisible, can't open doors, never phase,
	only A eats others, never pick up objects, only a/b/F/l/r/w multiply,
	never carry objects or gold, never cast spells, some breath weapons,
	not evil, hurt by slay animal, can be slept, mammals seen by
	infravision, most have 20% random movement

demons: B, p(Evil Iggy), q
	always invisible, only B can phase, only B eats others, always pick up
	objects, never multiply, carry objects/gold, cast spells, only B
	breath weapon, all evil, hurt by slay evil, can not be slept, not seen
	by infravision, never random movement

quylthulg: Q
	in a class by itself, almost exactly the same as demon except not
	evil and does not carry objects/gold, should be in class other

other: C, e, E, g, i, J, m, O, X, $, ','
	some can be invisible, never open doors, only X phase,
	only C/E/i/O eats others, only C/E/i/O pick up objects, only
	O/',' multiply, only C/i/O carry objects/gold, $ carries only
	gold, no breath weapons, not evil (all brainless
	creatures), not hurt by any special weapon, can't be slept,
	never seen with infravision, brainless creatures,
	some drain mana/exp/etc., fire/air elementals (includes invisible
	stalker) move quickly, golems are animated and should never move
	randomly, the rest never move or move slowly/randomly if they do

Miscellaneous overriding factors:
	if invisible, not seen by infravision
	if invisible, not hurt by blue light
	if frost attack, not seen by infravion
	if frost attack, not hurt by cold
	if frost attack, hurt by fire
	if fire attack, seen by infravision
	if fire attack, not hurt by fire
	if fire attack, hurt by frost
	if fire&frost attack, not hurt by fire nor cold, infravision depends
		on class
	if acid attack, not hurt by acid
	if poison/corrosion gas attack, not hurt by poison
	if lightning attack, not hurt by blue light
	if lungless, can not breathe/spit damage
	if invisible can not gaze damage
	if stone-to-mud hurt, not cold/fire hurt
	if not move and brainless, in general, not carry objects/gold
	if move and brainless, in general, carry objects/gold only if pick
		up objects

Possible changes:
	examine vulnerability list for errors, changes, things that don't
		make sense, additions, etc...
	need to classify lungless creatures here somewhere
	creatures without limbs should not claw for damage
	creatures without mouths should not bite for damage

Special vulnerabilities for each class:
a: none
A: cold, fire
b: fire, poison, blue light
B: none
c: none
C: fire
d: none
D: none
e: blue light
E: cold(fire), fire(water), stone-to-mud(earth), none (stalker,air)
f: acid, fire
F: cold, fire, poison
g: cold, fire, acid, blue light(flesh)
g: stone-to-mud (clay/stone)
g: acid (iron)
G: none
h: cold, fire
H: cold, fire
i: none
I: {no monster}
j: cold, fire
J: fire, acid, blue light
k: cold, fire
K: none
l: cold, fire, acid, poison, blue light
L: none
m: fire, acid
M: fire
n: fire, poison, acid
N: {no monster}
o: cold, fire
O: fire, acid
p: fire, cold
P: stone-to-mud (stone)
P: cold, fire (all except stone)
q: none
Q: none
r: cold, fire, poison
R: cold, fire, acid
s: none
S: none
t: fire
T: fire
u: {no monster}
U: fire, blue light
v: {no monster}
V: fire, blue light
w: cold, fire, acid, blue light
W: fire, blue light
x: {no monster}
X: stone-to-mud
y: cold, fire
Y: fire
z: fire
Z: {no monster}
$: none
,: fire, acid

Obvious errors in monster.c file:
Here is a list of errors in the monster.c file, assuming that the above
classification scheme is used.	I have not examined the entire list.

squint-eyed rogue should move 20% randomly

spirit troll should not be type 'T',
	since this is not an undead type, should carry objects depending on
		which type it is changed to
	if make zombie must remove phase ability
	if make ghost must make invisible

creeping coins: touch for normal damage, bite for poison damage

depends: pick_up_obj, movement