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IDProjectCategoryLast Update
0009219AI War 1 / ClassicBug - GameplayAug 18, 2012 2:51 am
ReporterMoonshine Fox Assigned Tokeith.lamothe  
Status assignedResolutionopen 
Product Version5.059 
Summary0009219: Low speed (such as Grav Drills) causes issues with directional movement
DescriptionIt would appear that Grav Drills confuse my ships. I sent my fleet straight at the Raid Engine in the north, from the southern wormhole, and as you can see, they are offset from the path. They are, for some reason, travelling northeast, slightly. No matter what I do I can't make them head north.
Tagsdrill, engine, gravity, pathfinding, raid
Internal Weight

Activities

Moonshine Fox

Aug 13, 2012 2:09 pm

reporter  

wierd_pathfinding_bug.jpg (348,769 bytes)

Moonshine Fox

Aug 13, 2012 2:10 pm

reporter  

Moonshine Fox

Aug 13, 2012 2:12 pm

reporter   ~0027613

After excessive spamclicking I made them go north, then re-clicked the R-E and they then stacked up on a line, but did travel north at last.

keith.lamothe

Aug 13, 2012 3:00 pm

administrator   ~0027615

That's... truly bizzare. I don't think I've seen anything just mess with your move orders. Will take a look later :)

TechSY730

Aug 13, 2012 3:56 pm

reporter   ~0027621

Actually, I see this with move orders in general. For example, every time an astro train comes through my system, it takes an almost but not quite straight line. It tends to "curve" a little bit. Not a huge amount, but visible if you try to place mines along their path (though it was even more visible back when you built mines 1 at a time rather than the "cluster" you see now)

I think I have seen patrolling minor faction units do this too.

It's barely noticeable at normal speeds, but I can see how this would be very visible under the effects of gravity (especially huge ranged ones like the grav drill)

Toll

Aug 13, 2012 4:44 pm

reporter   ~0027622

Two words: Rounding Errors. It's extremely noticeable if you're at 0% engine health, at which point you can only travel in eight directions. I thought it was by design... I've seen this very often.

Toll

Aug 13, 2012 4:46 pm

reporter   ~0027623

And in the above example, I'd expect them to move north-northeast until they're directly south of the target, then head directly north (assuming they're slow enough, which seems to be the case here).

Moonshine Fox

Aug 13, 2012 5:06 pm

reporter   ~0027624

Yeah, they're under the influence of a Grav Drill, thus at 8 speed. Also, I thought Arcen used Integers for pretty much everything? (Thinking of rounding errors)

Moonshine Fox

Aug 17, 2012 10:00 am

reporter   ~0027726

It might not even be because of the Grav Drill, but I've only ever seen it happen under the grav Drill. On other systems, they move just fine.

Toll

Aug 17, 2012 1:40 pm

reporter   ~0027727

It's not the Grav Drill, no. It's the speed. Try moving a forcefield for instance, and you'll see the same behaviour.

Moonshine Fox

Aug 17, 2012 1:56 pm

reporter   ~0027728

Editing the topic then.

TechSY730

Aug 17, 2012 2:28 pm

reporter   ~0027729

If this applies to movement in general (with the effects being more severe as speed goes down), do you think this is worth a bump in severity to major?

Moonshine Fox

Aug 17, 2012 2:53 pm

reporter   ~0027730

I wouldn't really. Seeing as I've played since early 2.x and have never noticed this before, it's hardly game breaking.

Toll

Aug 18, 2012 2:51 am

reporter   ~0027745

I've seen this pretty often myself. It's not like it's game-breaking though, so I agree it's not worth bumping it to major (although that's only our estimation of severity; the devs have their own severity-assessment, after all). And frankly, even though it can be improved (by actually using rounding from .5 instead of rounding up), that would decrease their speed slightly in some special cases, and it might also introduce other problems.

Issue History

Date Modified Username Field Change
Aug 13, 2012 2:09 pm Moonshine Fox New Issue
Aug 13, 2012 2:09 pm Moonshine Fox File Added: wierd_pathfinding_bug.jpg
Aug 13, 2012 2:10 pm Moonshine Fox Tag Attached: drill
Aug 13, 2012 2:10 pm Moonshine Fox Tag Attached: engine
Aug 13, 2012 2:10 pm Moonshine Fox Tag Attached: gravity
Aug 13, 2012 2:10 pm Moonshine Fox Tag Attached: pathfinding
Aug 13, 2012 2:10 pm Moonshine Fox Tag Attached: raid
Aug 13, 2012 2:10 pm Moonshine Fox File Added: Ancient_Shadows_SP_TEST.sav
Aug 13, 2012 2:12 pm Moonshine Fox Note Added: 0027613
Aug 13, 2012 3:00 pm keith.lamothe Note Added: 0027615
Aug 13, 2012 3:00 pm keith.lamothe Assigned To => keith.lamothe
Aug 13, 2012 3:00 pm keith.lamothe Status new => assigned
Aug 13, 2012 3:56 pm TechSY730 Note Added: 0027621
Aug 13, 2012 4:44 pm Toll Note Added: 0027622
Aug 13, 2012 4:46 pm Toll Note Added: 0027623
Aug 13, 2012 5:06 pm Moonshine Fox Note Added: 0027624
Aug 17, 2012 10:00 am Moonshine Fox Note Added: 0027726
Aug 17, 2012 1:40 pm Toll Note Added: 0027727
Aug 17, 2012 1:56 pm Moonshine Fox Note Added: 0027728
Aug 17, 2012 1:57 pm Moonshine Fox Summary Grav Drills cause wierd pathfinding => Low speed (such as Grav Drills) causes issues with directional movement
Aug 17, 2012 1:57 pm Moonshine Fox Description Updated
Aug 17, 2012 2:28 pm TechSY730 Note Added: 0027729
Aug 17, 2012 2:53 pm Moonshine Fox Note Added: 0027730
Aug 18, 2012 2:51 am Toll Note Added: 0027745