Why do these units have different hp?

[sethmachine]

Hi,

I'm playing a map where units can have their health upgraded many times.

Most of the upgrades are arithmetic bonuses (i.e. adding a flat amount, e.g. +50 HP), however a few do it based on percent, e.g. Increases all units max health by 8% of their current maximum health.

I haven't noticed this before, but it appears sometimes a unit actually gets the wrong amount of max health. In particular, this water elemental should have 720 HP, but some of them get a max of 721! Is this a floating number precision error? If so, why would it apply non-deterministically?

The base health of the elemental was 550 HP. I got a total of +120 flat health bonuses = 670, and then a percent bonus of 9% I believe.

 

[shaMewalkeR]

That is indeed very weird. It might be because of a calculation error, if the assigned hp is xxx,5. If it gains 9% bonus hp, it still doesnt make sense though, given that 550*1,09+120=719.5

Don't know what to tell you man, never seen that before

 

[Tal'Rarity]

Yeah this can happen, it happens often when dealing with handicaps or % based upgrades. You can fix this by recreating the unit however its just a little visual error, not entirely certain though.

If you give me the map that has this flaw I can research into it and check if it causes more then that visual problem. It was lame of blizzard to use a real for health and to visually show it by a integer. You can check it yourself to see if it is still correct and just visually failed by displaying real(health of unit). Let me know results if you do check it.

 

[WaterKnight]

The units may have gone through different stages of the upgrade and therefore face calculation differences. For example, the first one was already there, got upgrade A with a little imprecision, then got upgrade B which did not revert the previous upgrade but added to the already a little off hp result. The other unit was created after the upgrades have been done, so the upgrades were merged in numbers and applied to the unit together. Just a possibility.