CombinedEffect/ParallelEffect is missing

[eggnstone]

Problem to solve

I want to run a sequence of effects and therefore use a SequenceEffect.
But one of the effects should consist of two effects that run in parallel, hence a CombinedEffect/ParallelEffect would be nice.

Use case:

add(SequenceEffect([
  MoveToEffect(),
  CombinedEffect/ParallelEffect([
    MoveToEffect(),
    RotateEffect()
  ]),
  MoveToEffect()
]));

Proposal

A CombinedEffect/ParallelEffect similar to SequenceEffect should be created.

More information

No response

Other

• Are you interested in working on a PR for this?

[spydon]

We actually used to have this in the old effects system. It shouldn't be that hard to build, but there are a lot of edge cases to take into consideration.