What is the highest enchantment a randarte can generate?

[Arrhythmia]

????

[CanOfWorms]

I think cpa can generate with +23?

[Arrhythmia]

I think cpa can generate with +23?

What about aux armours?

[ololoev]

I think cpa can generate with +23?

What about aux armours?

Please be patient, I'd check source files in 1-2 hours (if answer won't appear before).

Okay, I got it:

  Code:

int max_plus = armour_max_enchant(item);
item.plus = random2(max_plus + 1);   //(1)
if (one_chance_in(5))
item.plus += random2(max_plus + 6) / 2; //(2)


On aux armour you have armour_max_enchant = 2, then in the line (1) you may get it and have (2 + 6 - 1) / 2 = 3 added in the line (2), thus you get +5.
You can calculate [1.5*(armour_max_enchant) + 2.5] (where [x] is x rounded down) for any type of armour, this yields +23 for CPA, +20 for GDA and so on.