[Pre-BB] MapleStory Formula Compilation

So for Heal we have...

Skill * 0.01 * (INT * 0.8 * 1.5 + LUK) * (0.3 + 1/NumTargets) * Magic / 200

Which I believe is equivalent to our original:
Max = (INT * 1.2 + LUK) * Magic / 1000 * TargetMultiplier

Yeah. My TargetMultiplier is 5 times the value of (0.3 + 1/NumTargets), so that cancels out the denominators.

Also I think I must apologize for the magic formula... that particular one was on Sleepywood a long time ago, but I doubted it because of the 0.058. Guess not.

Edit: As for the postprocessing:
(Damage * Element - rand(0.5, 0.6) * MDEF) * nMGuardUp * Crit * KeyDown. That is all.

Edit: As for the preprocessing:

 Spoiler

nAmp = 5 * (floor(INT/10) + floor(LUK/10))
Magical accuracy

s = nAmp * 100 / (dLevel * 10 + 255)
Auxiliary variable

v36 = rand(0.5, 1.2) * s
This is then compared to monster avoid.

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We can express this conventionally as a hit rate, if desired:

Avoid < rand(0.5, 1.2) * nAmp * 100 / (dLevel * 10 + 255)
Avoid * (dLevel * 10 + 255) / nAmp / 100 < rand(0.5, 1.2)
(Avoid * (dLevel * 10 + 255) * 100 / nAmp / 100 - 0.5)/0.7 < rand(0, 1)
1 - (Avoid * (dLevel * 10 + 255) * 100 / nAmp / 100 - 0.5)/0.7 > rand(0, 1)

The left hand side is your chance to hit. We can clean it up a little bit:

Hitrate = 0.7/0.7 - (Avoid / nAmp * (dLevel * 10 + 255) / 100 - 0.5) / 0.7
= (1.2 - Avoid / nAmp * (dLevel * 10 + 255) / 100) / 0.7
= (120 - Avoid / nAmp * (dLevel * 10 + 255)) / 70

Or, if we express Acc = nAmp/5 = INT/10 + LUK/10, we get:

= (120 - Avoid / Acc * (dLevel * 2 + 51)) / 70

To get simpler expressions in terms of max and min Acc needed, we can rearrange the expression:
0 = (120 - Avoid / MinAcc * (dLevel * 2 + 51)) / 70
120 = Avoid / MinAcc * (dLevel * 2 + 51)
MinAcc = Avoid * (dLevel * 2 + 51) / 120
Similarly,
FullAcc = Avoid * (dLevel * 2 + 51) / 50

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Fixed damage attacks use a different expression instead:
v29 = rand(0.7, 1.3) * CharLevel / (dLevel * 150 + 255)

I don't know what constitutes a fixed damage attack (and therefore whether it's important or not) so I won't bother beautifying this one.

Just curious... could you get similar code for physical attacks?