Unfinished Drafts: Battle system

This article is from sometime in 2008. I was kicking around the algorithms for combat. While it didn’t go anywhere, it’s interesting to see where my mind was.

Battle mechanics are always fun… but how to calculate battle and/or damage…

Base characters

Levelling

lvl 1: main stats(str,atk) +2, +5 points 27
lvl 2: main and std stats(str,atk,def,con) +1, +5 points 38
lvl 3: main A,std A, secondary A(str,def,eva) +1, +5 points 49
lvl 4: main B,std B, secondary B(atk,con,res) +1, +5 points 50
lvl 5: maj,eva +1, +5 points 61

Weaknesses

stab/slash/crush/mag

Base Equations

Chance to Hit = (atk + str*.1)/(def + eva*.1)*.5
chance for crit = atk/eva*.1
damage = rand(weapon-dmg) * str/def * ifcrit(1+str/def)

lvl 1 Fighter Vs. Snapper

Snapper attack:

(5 + 12*.1)/(10 + 9*.1)*.5 = 28% Chance to hit
5/9*.1= 5% Chance for crit
Jaws
(3 to 4) * 12/10 = 3.6 min
(3 to 4) * 12/10 = 4.8 avg
(3 to 4) * 12/10 = 4.8 max
(3 to 4) * 12/10 * (1+12/10) = 7.92 min crit
(3 to 4) * 12/10 * (1+12/10) = 10.56 avg crit
(3 to 4) * 12/10 * (1+12/10) = 10.56 max crit

Fighter attack:

(12 + 12*.1)/(12 + 9*.1)*.5 = 51% Chance to hit
12/5*.1= 24% Chance for crit
Fist
(1 to 3) * 12/12 = 1 min
(1 to 3) * 12/12 = 2 avg
(1 to 3) * 12/12 = 3 max
(1 to 3) * 12/12 * (1+12/12) = 2 min crit
(1 to 3) * 12/12 * (1+12/12) = 4 avg crit
(1 to 3) * 12/12 * (1+12/12) = 6 max crit
short sword
(2 to 6) * 12/12 = 2 min
(2 to 6) * 12/12 = 4 avg
(2 to 6) * 12/12 = 6 max
(2 to 6) * 12/12 * (1+12/12) = 4 min crit
(2 to 6) * 12/12 * (1+12/12) = 8 avg crit
(2 to 6) * 12/12 * (1+12/12) = 12 max crit
Long sword
(4 to 8 ) * 12/12 = 4 min
(4 to 8 ) * 12/12 = 6 avg
(4 to 8 ) * 12/12 = 8 max
(4 to 8 ) * 12/12 * (1+12/12) = 8 min crit
(4 to 8 ) * 12/12 * (1+12/12) = 10 avg crit
(4 to 8 ) * 12/12 * (1+12/12) = 16 max crit