AC issues are starting to be really problematic.

[Rogean]

Actually that brings up a good question.

There are two paths to take.

ChanceToHit -= ((100 - ChanceToHit) * AdvoidChance)

This would be 68 -= ((100 - 68) * 0.5) == 52

Or:

ChancetoHit = ((100 - ChanceToHit) * 1 + AdvoidChance

This would be ChanceToHit = ((100 - 68) * 1.5) == 48.

The second option is probably more accurate.

[Splorf22]

How do you derive your second option ?

[Rogean]

I'm missing a step in my maths. Option 2 needed to be subtracted from 100 again back into chance to hit.

So yea both result in a chance to hit of 52.

[Splorf22]

Why are you changing the avoid chance to the chance to hit?

By this math if the original chance to hit was 100% with evasive on you'll be hit (100 -100) = * 1.5 = 0.

[Splorf22]

chance to hit = chance to hit * 21845 / 31768 ofc, because we hate division

[Rogean]

Our code calculates it from the chance to hit perspective, so any math needs to be done from that.

It's impossible to get a 100% chance to hit pre-discipline, as those values are clamped at 10/90.

But let's say they weren't clamped. In your example you forgot to add it back to chance to hit. So if chance to hit is 100%, chance to avoid is 0%.. You can't increase 0% by any number, so yes it would still remain a 100% chance to hit.

[Nirgon]

Splorf skipping a grade straight into EQ honors calculus.

[Rogean]

chancetohit = clamp(chancetohit - (((100 - 68) * AvoidChance) / 1000)), 0, 100);

(In code, AvoidChances are * 10.. so evasive is 500).

[Splorf22]

Hmm, actually I just thought about this, but any time a NPC would have a less than 33% chance to hit that would become 0 by this math. So maybe this isn't as good as I was thinking.

Maybe just change the original code from 50% to 33%

[Rogean]

What situations would a mob have a 33% hit chance to start.. and maybe it should be set to 0?

If a high level player on eqlive walks into a low level dungeon where the mobs would already have such a low chance to hit.. and he hits evasive. What's the result? He would probably never get hit. So I'd imagine that would be intended.