EarthBound Beginnings/Battle Engine

Hit/miss Calculation

The attacker hits if:

(256 + AttackerFight - DefenderFight) / 2 < (RANDOM 0-255) + 102

Otherwise "[NAME] dodged swiftly." If the attacker and defender have equal Fight, the chance of hitting is approximately 90%.

Damage Calculation

The following method is used to determine the damage of a normal attack:

1. Calculate base damage (round BaseDamage down):

BaseDamage = [(AttackerOffense * 3) - DefenderDefense] / 4

2. Get random multiplier from this table. There is a 50% chance of RandMult being negative.

Odds	3.9%	7.8%	7.8%	7.8%	7.8%	7.0%	7.0%	6.3%	6.3%	5.5%	4.7%	4.7%	3.9%	3.1%	3.1%	2.3%	2.3%	1.6%	1.6%	1.6%	0.8%	0.8%	0.8%	0.8%
RandMult	0	1	2	3	4	5	6	7	8	9	10	11	13	14	15	16	17	18	19	20	21	22	23	24

3. Calculate final damage (round FinalDamage down):

FinalDamage = BaseDamage * (1 ± 0.1 * RandMult)

This means that any normal attack can hit for 76% to 124% of its base damage.

SMAAAASH!!

Odds of getting a SMAAAASH!!

The chance of a SMAAAASH!! is exactly the same as the chance of missing an attack: The attacker gets a SMAAAASH!! if:

(256 + AttackerFight - DefenderFight) / 2 > (RANDOM 0-255) + 102

If the attacker and defender have equal Fight, the chance of both hitting and getting a SMAAAASH!! is approximately 9%.

SMAAAASH!! damage calculation

Currently unknown.