Hearing - Optimise explosion event handler

[johnb432]

When merged this pull request will:

• (_projectile getShotInfo 5) != (netId _projectile == "0:0"). They are independent of each other and I believe the former is not suited for our use case.
• Optimised EH slightly.

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[LinkIsGrim]

(_projectile getShotInfo 5) != (netId _projectile == "0:0"). They are independent of each other and I believe the former is not suited for our use case.

ELI5?

[johnb432]

ELI5?

In an ideal world, we'd like to have all explosions be caught by local explode event handlers.
Unfortunately, there are some exceptions, such as rockets, which only raise the projectile explosion EH where the projectile is local. Therefore, we need to implement our own system of globally informing machines that an explosion occured.

We need to filter out local-only objects from being passed globally, to avoid RPT spam (non-network ref stuff). _projectile getShotInfo 5 seems to indicate if it's used in damage events, which isn't quite what we need. netId returning 0:0 on any object means that the object exists on the local machine only.