Motion vectors of ship seem to be off from thrust vectors

Jeff Parker shared this bug 3 months ago
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While moving around Kemik, I noticed as I approached Kemik Station that the motion vector of the ship and the thrust vector of the engines seem to be mismatched. I had dampeners on to reduce the speed of the ship since I was approaching the station.

When I turned the ship using the arrow keys (gyroscope change), the motion vector for the ship appeared to change to approach the station rather than sliding by it. I was not pressing W,S,A,D,Q,E at the time, so I was not directing thrust motion for the ship.

Turning the ship using the gyroscopes shouldn't change the direction of thrust, only which engines are firing. In SE 1, that is what I would do to reduce speed quickly while turning on dampeners - use the gyros to change which engines were firing so the big engine was producing the most thrust.

Replies (2)

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I've noticed this as well. Mostly when holding W and thrusting in a direction at speed and then trying to course correct with directionals. If you allow all thrusters off for a moment (slowing down), and then trying to course correct, it works better, but still not the same feeling as SE1. Hopefully this will get ironed out in the future.

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Hello Jeff Parker,


I could not reproduce this on current Game version: 2.0.2.51. The ship is not changing motion vector while Dampeners are ON and I am turning the ship with Gyros.

Could you please provide a video of the issue you are experiencing?


Kind Regards,

Bartosz

Keen Software House

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Video 1. SE2, ship does a full circle around the asteroid while decelerating with dampeners on. Only gyro steering/turning using the mouse. No thruster movement at all using the movement keys (WASD).

Video 2. SE1, same setup. Gyro steering/turning only while decelerating with dampeners on. No thruster movement at all. Ship just turns in place while automatically adjusting thruster output to reduce speed in the original direction of momentum.

edit 3 - Won't let me attach the SE2 videos for some reason... >_<

edit 4 - I think it worked this time!

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Any update?

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I am testing version 2.0.2.57 using the Sledge.

I have been testing this with a steady thrust - no change in velocity - by flying very close to Vallation Station. The change in perspective appears to be an optical illusion due to the twisting of the ship. The center of rotation of the ship appears to keep a steady distance from the station.

However, when I approach the station at extreme velocity - a steady speed over 500km/h - and then simply hit the Z key to turn on the dampeners and then turn the Sledge, the ship slingshots around behind the station in an arc. In the end, you can see the ship sliding sideways in relation to the station.

Maybe this is due to the sledge's design, but I would have expected the direction of thrust of the engines to be counter to the direction of motion. I wasn't pressing any other keys than the arrow keys to rotate the ship after turning on the dampeners.

I would have expected a slingshot like that if I was applying thrust as I turned the ship. But that is not what is happening.

Both videos show the slingshot maneuver, so I am able to replicate this maneuver.

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lol, cool! I was able to reproduce it on the first attempt.

Ava D - When inertia dampeners are off pressing the thrust keys do not work the same as in SE1. If you are heading in one direction and then press a thrust key it will not, simply move in that direction. For example, if you are heading straight forward towards and asteroid and then decide to change course to go towards another asteroid the ship will continue it's current course while it seems to maybe add a tiny bit of thrust, or perhaps mixes it in to your current path. I've found that I have to press Z to re-enable the initeria dampners so that the ship can adjust itself before allowing me to change course. It's more realistic than SE1. If a rocket is heading towards the sun at max speed and you turn your ship to point a path to go passed the sun, the ship is still heading forward because inertia dampeners are off. Enabling the dampeners for a short time, a few short on/off allows the ship to re-orient itself to your new path.


How to reproduce the initial bug:

1) while docked look around using the arrow keys to see how it changes the character camera

2) correct the camera and then undock.

3) move the ship to a spot where you can move forward a tad and then use the arrow keys to do a 180. The game camera has turned to point 180 degrees. The ship thrusters' controls will now be reversed. The backwards thrusters kick on to go forward, and the forward thrusters kick on when you attempt to move backwards. Pretty cool bug!

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