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[1.062] Cargo Ship (mining hauler) rotor bug - Observations

Discussion in 'Bug Reports' started by Arcturus, Dec 31, 2014.

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This last post in this thread was made more than 31 days old.
  1. Arcturus Senior Engineer

    I saw a mining hauler appear in the distance as a yellow dot, playing survival single player on infinite normal density. At the same time, a pair of yellow dots appeared further away in the opposite direction to the mining hauler's travel direction.

    As I moved closer and was about 9000 m from the hauler, the following happened:
    - The hauler started to tumble/spin with some kind of angular acceleration (i.e. not a constant spin)
    - The pair of dots, now visible as the pair of hanger doors, accelerated towards the hauler, reaching the top speed.

    A few seconds later:
    - The doors collided with the hauler, destroying a random part of the outside.
    - The hauler ceased accelerating, and spun along one axis at a constant rate of rotation

    My theory:
    - When the hauler spawns, the main ship is given a velocity but the doors are not.
    - The rotor parts on the blast doors are still "attached" to the ship's rotor bases, despite the large distance.
    - When the ship spawns out of sight, it is not fully collision simulated, so the doors phase out of the ship.
    - When a player comes close enough to the hauler, the ship is simulated. This creates a huge attractive force between the rotor parts and the rotor bases. This force ends when the rotor part is destroyed during the ensuing collision.

    Suggested fixes:
    - Give the same velocity to each of the sub-grids of a cargo ship when spawning.
    - Insert a check in the rotor code to "detach" the rotor part if it is an unreasonable distance from the rotor base.
  2. HollowVoices Trainee Engineer

    That actually offers a really good explanation as to why rotors and such on cargo ships seem to explode after the update. Another theory is that it happens when a ship crosses a sector boundary. Ships jolt violently upon crossing.

    Seen this happen a few times, although after the fact.
  3. fabricator77 Apprentice Engineer

    I've found some of these loose Mining Hauler doors, using SEToolkit.
    One was doing 104m/s, another was 40m/s
    What I found was setting the movement rate to 0m/s, saving and loading the game, only fixed 50% of the problem.
    The slower moving door was stopped, but the one doing max speed, remained at that speed.

    Now I have the Mining Hauler itself, its stopped and doing 0m/s.
    It has one destroyed rotor (totally gone), and one intact one. My guess is the one still doing 104m/s belongs to the complete rotor.
Thread Status:
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