add ability to switch to planet by clicking on it from afar

[Sivecano]

If your pull request is not translation or serverlist-related, read the list of requirements below and check each box:

• I have read the contribution guidelines.
• I have ensured that my code compiles, if applicable.
• I have ensured that any new features in this PR function correctly in-game, if applicable.

This sometimes bothered me when looking at the map.
Just let me click on a thing to get there instead of having to figure it out via menu.
Now I am happy.

I outlined the function gotoPlanet but I'm unsure if this was the correct thing to do styleguidewise.

SCOPE EXPANDED: we're also doing smooth transitions now ig

[Twcash]

interesting

[Sivecano]

Tested on Desktop and Android, maybe one would want to add a highlighter to the currently hovered planet but maybe it's actually just fine as-is

[Sivecano]

I'm unsure about 3 things:

• Is it a good idea to outline gotoPlanet?
• is the introduction of hoverPlanet a good idea
• if yes, should it be highlighted somehow?

[Sivecano]

do not merge this for now it breaks selecting sectors to play. will fix
I fixed it, it's fine now

[Sivecano]

mindustry.mp4

[Sivecano]

mindustry2p.mp4

[Sivecano]

so the big issue I'm having is that I'm faced with a few choices:

• go on as before and set the camera position relative to the camera to something fixed: this does not feel very natural
• keep the same relative camera position: this feels great especially when clicking on planets directly but when choosing planets from the list it can cause you to clip backwards through a planet this is jerky as hell.
• turn the camera to face the new planet: this works pretty well especially for long zooms but is awful when selecting something like a moon or frankly anything that is not far away
  what can I do:
• make some sort of case distinction
• choose one of the above
• figure out a more complicated approach path preferably one with a higher arc this would be epic but hard

[Sivecano]

this also fixes a segfault when selecting a planet without any sectors (this happens with some misconfigured mods)

[Anuken]

I'm not going to review this yet, but your style is wrong. Read the guidelines.

[Sivecano]

I'm not going to review this yet, but your style is wrong. Read the guidelines.

thanks, I'll look over it. I though I kept most of it in mind but apparently I messed up. my bad

[Sivecano]

ran the formatter over my changes and I hope it's serviceable now. The only style thing I'm sorta unsure about is the addition of gotoPlanet. I wanted changing planet to have consistent behaviour but maybe that's not actually what we want to begin with.