construction sites

[Wyatt Hebert]

Agreed. Last time I checked, Construction sites affect forging costs.

As an aside, the game rounds costs down, so if you can manage to drop an item's cost below 1 gem, it will be free.

That is all.

Wyat

[vfb]

Not only that, it's some weird additive formula for the discounts.

To forge a 10-gem item at the Steel Ovens (20%), with a hammer (25%), it costs 5 gems.

Maybe something like this is how it works?

Discount = (10 * .2) + (10 * .25) = 4.5, round up to 5

10 - Discount = 10 - 5 = 5

Edit: no, that's wrong, please see below.

[OmikronWarrior]

I thought the formula was for most cases mulplicitive, and not additive? There might be an exception for innate forge bonuses, but otherwise:

10*.8*.75

[vfb]

I just tested it. Dwarven Hammer, Steel Ovens. Cost to forge a skull staff there is 5 gems. Your formula gives 6 gems, and that's not what it costs.

[Valerius]

I think the hammer/forge bonus (Ulmish smith, etc.) is applied first and then the bonus from the site/FotA is applied. So, the 25% discount from the hammer brings it down to 7 gems and then a 20% discount is applied to that, bringing the final cost to 5 gems.

I also remember reading that the minimum cost for an item is 1 gem.

[vfb]

Oh, okay, I see:

floor(floor( 10 * .75 ) * .8) = 5.

That works too, and makes more sense given the forge costs when FotA is up. Works for a 5-gem item too:

floor(floor( 5 * .75 ) * .8) = 2. That's the cost at the 80% site of a Bane Blade, wielding a 75% hammer.

[Wyatt Hebert]

In Dom2, iirc (and my memory seems to be failing me lately), construction bonuses were additive (Give a hammer to a Ulm Smith, and the tooltip corrects to 50%). Now, that may be forge bonuses.

The wild card in the deck, in my experience, was Forge of the Ancients. That reduced the base cost of forging by half. So, it was (Forge Bonus 1+Forge Bonus 2)*(Gem Cost*0.5). Of course, you get the floor function in there, as well. So floor[(1-FB)*floor(GC*0.5)] is how I understand it.

The open question is whether or not Construction cost reduction is a forge bonus, part of the same type as FotA, or another, separate multiplier.

I think it could be stated that, if it's a forge bonus, it will be additive. If it's the 'same' as FotA, _I_ would think it would be additive with that. So...

What numbers for forging would prove the question?

Forge Bonus:
floor{[1-(0.25+0.2)]*15}=floor(8.25)=8
floor[floor(15*0.75)*0.8]=floor(8.25)=8

This is inconclusive.

25 gems: 13 for additive [(25*.55)=>13]
25 gems: 14 for multiplicative
(25*.75)=18.75=>18*0.8=14.4=>14
OR (25*0.8)=20=>20*0.75=15

Ok. So, could someone with a Dwarven Hammer and at a 20% construction site forge a 25 gem item? The cost there would let us know how Hammers interact with the site. We could then toss in a FotA review if anyone wants it.

Wyatt