Blocks at 8 (Small Grid) Block Distance get more damaged from Rocket Explosion

Mater Trevenish shared this bug 2 years ago
Reported

Blocks at 8 (Small Grid) Block Distance get more damaged from Rocket Explosion


If a rocket explosion occurs at ~3.5 meters away from a block it will get very damaged.

Bug should be reproducible with rocket launchers too, meaning all rockets have the same behavior.


Here is a video I made to show better:

https://www.youtube.com/watch?v=_gGWkt5do40

Replies (5)

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1

Hello, Mater!

Thank you for reporting this issue and the video. I am trying to reproduce the issue and wondered if you could possibly supply the save file for your experiment for me to have a look at too?


  • You can access your save files by typing %appdata% into your Windows search bar and you will be redirected to the hidden Roaming folder. After that just follow: \Roaming\SpaceEngineers\Saves. There should be a folder with your SteamID and your saves.
  • Please zip the file and attach it here. If you are having difficulty attaching files you can optionally use Google Drive. When sharing a google drive link please make sure it is set to be downloadable by anyone with the link.

Kind Regards

Laura, QA Department

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Hi!


I decided to add a new world - 'creative 2' - as the older one - 'creative 1' - is full of trash. In this new world the testing site should be ready.


I added a Blueprint of a test site to make testing easier to replicate.


Thank you for your dedication to the bug.

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Hello, Mater!

Thank you so much for these that's excellent. Although you have provided a video, it was only a small explanation, would you be able to just give a little more detail on the issue? Do you think the blocks at 8 distance are more damaged than the others? Is this more an issue of if you are closer to the blocks they are more damaged or if you are further away? A little more explanation would be excellent I hope that is ok! :)

Kind Regards

Laura, QA Department

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Hi, Laura!

I thought I was very accurate with my explanations about how explosions are mishandled, where blocks at certain higher distance from the center of explosion suffer higher damage (the shooter's position (be that a player or rocket launcher block) is not important). This bug might be explained by one of the following examples:

- At certain distances from the center of explosion new shrapnel pieces become existent OR

- At certain distances calculations flip due to multiplying or dividing with numbers that are smaller than 1 but bigger than 0.

These can lead to unwanted damage effects.

If I could have a look at the code that calculates the damage for nearby blocks for explosions, I might be able to point out the exact issue where it occurs. I'd like to see the code snippet which describes the explosion. I couldn't find those codes at the time, I would be thankful if you could lead me to it's location in my game files.

In my video from 1:07 I demonstrate that blocks get inappropriate damage.

At 1:15 - I show a heavy armor block that was '8 unit distance' away from the center of explosion and now it has 7% health.

At 1:18 - I show a heavy armor block that was '2 unit distance' away from the center of explosion and now it has 83% health.


The same experimentations can be done with the files I provided, if someone in-game shoots a rocket aiming at the center red block of the provided blueprint. I struggle to be more accurate with this bug report.

Kind Regards,

Mater

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Hello, Mater!

Thank you so much for verifying that and also giving some exact timestamps - I totally understand what you mean now. I have successfully reproduced the issue and reported it internally. I really appreciate the effort gone to supply everything needed with this :)

Kind Regards

Laura, QA Department

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