[Mission] gets deleted after success before MissionStatePoll can trigger

[mrzzzrm]

What the title says. That's why starting the second mission is not possible sometimes.

This is a conceptual problem, suggestions are welcome.

[psieg]

Either the missions don't get deleted immediately or you keep the missionState around in some way I
guess

[xchrdw]

manage missions with shared_ptr and let the polls keep a shared_ptr to the mission to keep it alive as long as neccessary.

[mrzzzrm]

First thing is not possible (when would it be deleted? a mission shouldn't know its polls), second could be done in the MissionSystem, I guess. But the State is not the only thing one might want to query...

I go for shared_ptrs as well. And I want them for ALL objects (scripts, polls, worldobjects, missions) at some point. -> #542

[xchrdw]

If it's a problem to pass around the shared_ptr we could take a look at glow::ref_ptr / glow::Referencable where the object keeps the count instead of some external structure

[mrzzzrm]

I haven't figured out yet, what glow::Referenceable does. Might be worth looking into.