Relative velocity to target and a retrograde vector, Gravity, vector features
I see you have a relative velocity, post that says completed. I have the newest update for android and when i look at the vectors i see the direction from your ship to target, this vector displays your distance value. Then i see a target velocity, this tells you what direction the targets moving in and at what speed.
This as far as i am able to see does NOT tell you your relative velocity to target. These two things are not the same. When playing kerbal on the satellite docking rendevouz tutorial, you reach a point where to catch up to your target you burn towards your target for a bit then you switch and burn retrograde to your targets relative velocity to kill your speed in relation to the target. This does not work in simple rockets, attempting to do this does NOT efficiently catch you up to your target.
If i am wrong let me know but it does not seem to work the way it should. Y ou should also add the retrograde vector on the circle so i am not eye balling roughly where the retrograde vector is at from the prograde relative velocity.
The way gravity is calculated using sphere of influence does not seem accurate, as soon as i enter moons sphere of influence my rocket immediate starts traveling 90 degrees away from where it was. Gravity does not cause instantenous changes, granted as far as we can tell gravity from an object extends infinitely into the universe, just at a level that has 0 effect. The closer you get to the object, the more my orbit should change, the edge of the sphere of influence should have weaker gravity weak enough that i am not immediately flung side ways when i touch the sphere of influence.
I think when selecting a direction on the circle, it should when close enough snap to the existing vectors displayed, such as direction to target, or target velocity, and when it snaps to the vector it will then move with that vector when it moves along the circle, so im not constantly following it manually.
Kevin Doane commented
Im an idiot, the speed value is your relative speed. Velocity is speed and a direction and what i meant to say this entire time is i think we should have that direction be included.
the direction of our relative velocity, then we know what direction to retrograde burn in in order to get our relative velocity to 0 m/s