AC/EV/SH statistics

[Sandman25]

Is it possible to add statistics about how many hits (count and percentage) were blocked by shield, how many hits were dodged and how many hits were reduced to 0 by AC? It could help to see how useful different lines of defense are.

[Berder]

The numbers you really want are:
1. the proportion of hits that were blocked
2. the proportion of unblocked hits that were dodged
3. the amount of damage that was reduced by AC, divided by the total incoming damage that was unblocked and undodged
4. the proportion of damage that was reduced by resistances, divided by the total incoming damage after AC

Each of these (1-4) should be taken from data over some reasonable time window such as the last 100 turns during which enemies attacked you.

[Sandman25]

Yes, 1-3 is what I basically suggested (except for 3, reducing to 0 is identical to dodging/blocking). I am not really interested in watching those from last 100 turns because I can already press Ctrl+p.
I am not interested in 4 as it changes nothing (I will swap to rF+ for Fire Giant etc. with all characters).

Displaying the statistics can help to make decisions about removing shield, switching to lighter/heavier armour, also can help to compare different characters.

[Berder]

Why do you only care about whether the damage is reduced to 0? Most of the damage reduction from armor does not reduce it to 0 (usually).

[Sandman25]

Why do you only care about whether the damage is reduced to 0? Most of the damage reduction from armor does not reduce it to 0 (usually).

To compare it with EV/SH.

[Berder]

Why do you only care about whether the damage is reduced to 0? Most of the damage reduction from armor does not reduce it to 0 (usually).

To compare it with EV/SH.

This:
3. the amount of damage that was reduced by AC, divided by the total incoming damage that was unblocked and undodged
is what you want, if you want to compare it with EV/SH. That is:
1. block ratio tells you by what factor average incoming damage is reduced by your sh
2. dodge ratio tells you by what factor average incoming damage is reduced by your ev
3. armor ratio (as above) tells you by what factor average incoming damage is reduced by your ac

If you only looked at when the ac reduces incoming damage to exactly 0, you'd be undervaluing ac relative to ev/sh because ac does much more than that.

[Sandman25]

If you only looked at when the ac reduces incoming damage to exactly 0, you'd be undervaluing ac relative to ev/sh because ac does much more than that.

Yes, I know. SH can block attacks which would be dodged by EV anyway, EV can dodge attacks which would be reduced to 0 by AC anyway and seriously there is a huge difference between dodging Crystal Spear and rat's attack.

[Sandman25]

Argonaut, thank you for the patch!

[Eyesburn]

Argonaut, thank you for the patch!

Oh, nice, btw how to use this in 0.16?

[Sandman25]

Oh, nice, btw how to use this in 0.16?

I believe the only possible way is to apply the patch to 0.16 branch manually.