The display is formatted as such: (1d20 roll) + (luck + modifiers) = (result) You will hit, excluding critical hits/misses, if: (result) >= (Base THAC0 - Target AC) "Luck" is your cumulative of these modifiers: Spoiler
Luck
Chant
Bad-Chant
Fatigue
Intoxication
Capped between two values: (20 - 1d20 roll) >= value >= (1 - 1d20 roll)
"Modifiers" is the cumulative value of all of the following: Spoiler
Your:
Proficiency: +/-#
Strength/Extra: +/-#
Dexterity: +/-#
Missile Adjustment: +/-#
Bonus: +/-#
Fist Bonus: +/-#
(Race): +/-#
(Weapon Style): +/-#
(item-name): +/-#
Your hidden modifiers (not listed in either the record or inventory breakdown):
opcode 284: (varies) - Melee THAC0 bonus - not used outside of Mods
opcode 178: (varies) - THAC0 vs type bonus (evil,demons,undead,etc)
Berserk(+2)
Invisible(+4) - only against targets that cannot see invisible
Racial Enemy: (+4)
Your Opponents situation:
Range: (-8) - too close while you are using Missile Weapons
Attack of Opportunity: (+4) - opponent is Unarmed/Ranged while you are attacking in Melee
Visibility: (-4) - opponent is invisible and you cannot see invisible
AC vs type: (varies) - (crush,slash,evil,lawful,trolls,etc)
"Base THAC0" includes the following: Spoiler
Base THAC0
Modifiers listed as "to-hit" in the inventory screen THAC0 display
Blindness: (-4)
Bless: (can vary)
Aid: (can vary)
"Target AC" includes the following: Spoiler
Base AC
Generic AC Modifiers (items/spells)
Targets Dexterity: (varies)
Targets Weapon Style: (varies)
Target is Blind: (+4)
来源:oschina
链接:https://my.oschina.net/u/1177171/blog/4808336