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Life Drain - number of ticks

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  • Life Drain - number of ticks

    Hi guys, I did a test with Pugna's Life Drain, and I am not sure it works 100% right.

    I spawned a level 25 Treant Protector with 2 or 3 bloodstones just to make sure I can have fun without wtfmode and drained him.

    For Pugna level 25, no Aghanim:
    200 damage (or life steal), lasting 10 seconds. That means he should deal 2000 damage. However, it seems the ability is triggered around 4 times per second.
    That means he'll deal 200/4 damage per second, going down for 50 damage every damage tick. Since Treant has 25% MR, that means Pugna only deals 37.5 damage in one tick. The total goes up to 150 per second, ending with a grand total of 1500 (out of 2000) total damage per channeled ability on my enemy Treant.

    The log says:
    [15:19.73] Treant Protector receives Life Drain debuff from Pugna. (apparently informative)
    [15:19.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4505->4468).
    [15:20.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4476->4439).
    [15:20.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4450->4413).
    [15:20.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4421->4384).
    [15:20.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4395->4358).
    [15:21.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4366->4329).
    [15:21.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4340->4303).
    [15:21.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4311->4274).
    [15:21.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4285->4248).
    [15:22.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4256->4219).
    [15:22.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4230->4193).
    [15:22.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4201->4164).
    [15:22.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4175->4138).
    [15:23.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4146->4109).
    [15:23.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4120->4083).
    [15:23.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4091->4054).
    [15:23.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4065->4028).
    [15:24.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4036->3999).
    [15:24.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (4010->3973).
    [15:24.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3981->3944).
    [15:24.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3955->3918).
    [15:25.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3926->3889).
    [15:25.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3900->3863).
    [15:25.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3871->3834).
    [15:25.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3845->3808).
    [15:26.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3816->3779).
    [15:26.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3790->3753).
    [15:26.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3761->3724).
    [15:26.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3735->3698).
    [15:27.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3706->3669).
    [15:27.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3680->3643).
    [15:27.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3651->3614).
    [15:27.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3625->3588).
    [15:28.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3596->3559).
    [15:28.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3570->3533).
    [15:28.76] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3541->3504).
    [15:28.99] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3515->3478).
    [15:29.26] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3486->3449).
    [15:29.49] Pugna hits Treant Protector with LIFE DRAIN for 37 damage (3460->3423).
    That counts up to 39 ticks.

    39 ticks * 37 dmg = 1443 total damage (out of an expected 1500). It seems as though he's losing almost 2 ticks worth of damage.

    There are 2 obvious bugs to me here:
    1. the damage is dealt as an integer as opposed to float which rounds 37.5 to 37 (losing 19.5 damage for 39 ticks or 20 damage for 40 ticks)
    2. he's missing one tick

    Those 2 combined seem to be an unfair nerf for this poor demonic soul.
    Explanations on the normal, high and very high brackets in replays: here, here & here
    Why maphacks won't work in D2: here

  • #2
    1. It's known that lots of dps skills miss the last tick.
    2. Rounding issue. it should deal 37.5 damage per tick, but gets rounded to 37.

    So he loses 37.5 damage from one tick and 39*0.5 damage from the rounding issue

    37.5 + 39 * 0.5 = 57

    57 + 1443 = 1500

    Both issues are known.
    Please, just call me buny.

    Comment


    • #3
      But not added to the sticky
      I assumed at least one of them was suspected, if not known, but I wanted to compile this thread with all the details.
      Explanations on the normal, high and very high brackets in replays: here, here & here
      Why maphacks won't work in D2: here

      Comment

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