[Bug] Slows are miscalculated.

from Demigod Forums

Stacking movement buffs is additive, meaning at a base speed of 6.0 if you have +10% and +15% you end up with 7.5 speed (6.0 * 1.15) instead of 7.6 (6.0 * 1.15 * 1.1).

However, slows are calculated in after movement buffs which results in them being significantly more effective than speed buffs.

Example:

+25% movement speed from buffs.
-25% movement speed from debuffs.
Base speed of 6.0
6.0 * 1.25 = 7.5 buffed speed.
7.5 * .75 =  5.6 debuffed speed.

As you can see above, having +25% movement speed doesn't cancel out -25% movement slow.  In order to cancel out a 25% movement speed debuff you need 33% movement speed buff.  Basically, the higher your movement speed the more effective movement speed debuffs become.  25% debuff on 6.0 slows them by 1.5 points but the same 25% debuff on 10.0 slows them by 2.5 points.

To make matters even worse, movement speed debuffs stack additively (not multiplicitively) which means if you are buffed to 8.0 speed and take a 25% debuff (dropping you 2 points to 6.0) and then you take another 25% debuff you end up dropping *another* 2 points to 4.0, instead of dropping 1.5 points to 4.5.

Basically what this comes down to is you can *never* beat movement speed debuffs with opposing movement speed buffs.  Not only are debuffs inherently more powerful than buffs (as shown above) they are far more common:

-25% favor item
-25% gloves
-25% Oak ability
-25% UB ability
-15% TB ability
-10% TB ability
-50% Rook ability
-25% Queen ability
-25% Erebus ability
-25% Regulus ability
-25% Regulus ability

+15% TB ability
+25% Sedna ability
+25% UB ability
+10% boots
+15% favor item
+25% usable
+15% boots
+50% boots proc 

1,114 views 4 replies
Reply #1 from Demigod Forums Top

I hope they are cumulative and not compound.  Is this a bug or intentional?  If I go out of my way to forfeit all FP items for the +15% speed increase I expect it to work as it sounds =(

Reply #2 from Demigod Forums Top

you forgot Regulus Mark of the Betrayer III which reduces movementspeed by 60% =)

This needs fixing yes and also we need more minimum movementspeed capping items, atm there is only one and its a favor item.

CursorFX - Customize your Windows cursor
Reply #3 from Demigod Forums Top

And more importantly, the math on the favor item is busted, it calculates at the wrong time and your min speed is 75% of your *base*, not your buffed.  So buffing to 10 speed with the favor item and you still have a min speed of 4.2 I think.

Reply #4 from Demigod Forums Top

this shouldn't be too hard to fix (if it is indeed a miscalculation by the devs).  just store the base speed of each demigod and apply the percentage changes to that instead of the units current speed:

 

base_speed = 6.0

base_speed * 1.25 = 7.5

current_speed - (base_speed * 0.25) = 7.5 - 1.5 = 6.0