Dizzy Mud Area Builder's Guide - Immunity/Resistance/Vulnerability Flag Table

In general, immunity against something protects the mob absolutely.
If the attack is a spell, then resistance improves saves by -2; vulnerability worsens saves by 2.
For attacks (including spells) that do damage, resistance reduces damage by one third; vulnerability increases damage by one half.

Where this is so, immunity is fully explained and the other two follow the pattern. The exceptions have specific explanations.

Letter	Names	Explanation
A	IMM_SUMMON	Protects mob from most of the TRANSPORTATION spells: It cannot be SUMMONed or TELEPORTed, nor can it be GATEd, PORTALed or NEXUSed to. The Quest Master will never send a player to kill a mob with IMM_SUMMON. Keep this in mind when you make a mob completely unkillable by giving it IMM_MAGIC and IMM_WEAPON: Add IMM_SUMMON to avoid having people sent to kill it.
A	RES_SUMMON VULN_SUMMON	No effect!
B	IMM_CHARM RES_CHARM VULN_CHARM	The immunity protects mob from the CHARM spell and the SING skill.
C	IMM_MAGIC RES_MAGIC VULN_MAGIC	The immunity protects a mob from magic. This includes all damage types which don't translate to physical damage types DAM_BASH, DAM_SLASH and DAM_PIERCE! Exotic weapons will also tend to cause damage in this 'other' category.
D	IMM_WEAPON RES_WEAPON VULN_WEAPON	The immunity protects against 'normal' weapon damage. Unarmed attacks, e.g. punching and kicking, cause DAM_BASH and also fall into this category.
E	IMM_BASH RES_BASH VULN_BASH	The immunity protects against damage from unarmed attacks and bashing type weapons.
F	IMM_PIERCE RES_PIERCE VULN_PIERCE	The immunity protects against piercing type damage.
G	IMM_SLASH RES_SLASH VULN_SLASH	The immunity protects against slashing type damage.
H	IMM_FIRE RES_FIRE VULN_FIRE	The immunity protects against damage from fire attacks. These currently include: Flameshield, Burning Hands, Firestorm, Fireball, Flamestrike, Heat Metal, Fire Breath; flaming weapons; flaming bite and flame as mob or weapon damage types.
I	IMM_COLD RES_COLD VULN_COLD	The immunity protects against damage from freezing attacks. These currently include: Blizzard, Chill Touch, Frost Breath; freezing weapons; freezing bite and chill as mob or weapon damage types.
J	IMM_LIGHTNING RES_LIGHTNING VULN_LIGHTNING	The immunity protects against damage from shocking attacks. These currently include: Call Lightning, Chain Lightning, Lightning Bolt, Shocking Grasp, Lightning Breath; shocking weapons; shocking bite and shock as mob or weapon damage types.
K	IMM_ACID RES_ACID VULN_ACID	The immunity protects against damage from acid attacks. These currently include: Acid Blast, Acid Breath; Digestion, acidic bite and slime as mob or weapon damage types.
L	IMM_POISON RES_POISON VULN_POISON	The immunity protects against damage from poison attacks. These currently include: Poison (spell), Gas breath; poisoned weapons.
M	IMM_NEGATIVE RES_NEGATIVE VULN_NEGATIVE	The immunity protects against negative attack damage from Dispel Good and Energy Drain; vampiric weapon; life drain as a damage type for mobs and weapons; and from the non-damage effects of spells Curse, Demonfire and Fear.
N	IMM_HOLY RES_HOLY VULN_HOLY	The immunity protects against damage from holy attacks. These currently include: Dispel Evil, Ray of Truth; divine power as a damage type for mobs and weapons.
O	IMM_ENERGY RES_ENERGY VULN_ENERGY	The immunity protects against damage from energy attacks. These currently include: Holy Word, Magic Missile, Wrath; wrath and magic as a damage type for mobs and weapons.
P	IMM_MENTAL RES_MENTAL VULN_MENTAL	No such attack!
Q	IMM_DISEASE RES_DISEASE VULN_DISEASE	The immunity protects from the plague spell and being infected by a character suffering from plague.
R	IMM_DROWNING RES_DROWNING VULN_DROWNING	No such attack!
S	IMM_LIGHT RES_LIGHT VULN_LIGHT	The immunity protects against damage from light attacks. Currently, the only such attack is the Colour Spray spell.
T	IMM_SOUND RES_SOUND VULN_SOUND	No such attack!
X	IMM_WOOD RES_WOOD VULN_WOOD	No effect!
Y	IMM_SILVER RES_SILVER VULN_SILVER	No effect!
Z	IMM_IRON RES_IRON VULN_IRON	No effect!

'No effect' indicates that coding this flag will not have an effect in the game because these flags are not checked for in the program.
'No such attack' indicates that coding this flag will not have an effect in the game because the form of attack it protects against does not exist in the game.