Overlapping BlockThingsIterator Detection

[XLightningStormL]

Hi all,

I've been trying to integrate a dynamic radiation actor object for a while and hit all sorts of roadbumps until I finally got *something* functional for what I want.

However there is an issue where If two of these actors overlap you get double the effect, I only want one effect at a time. Technically there is also another issue where the radius of the effect isn't square - but that's probably more due to BlockThingsIterator using a cylinder than a square and probably can't be resolved.

File included below, including the actors, and test map (replacing MAP01) - the giant cross near the middle of the map will show the overlapping issue, just travel from left to right (map wise, not perceptionally)

[phantombeta]

Technically there is also another issue where the radius of the effect isn't square - but that's probably more due to BlockThingsIterator using a cylinder than a square and probably can't be resolved.

That's because BlockThingsIterator doesn't do any distance checks on the actors. The "distance" argument is only used to determine which blockmap blocks it touches, but it gives you all actors inside those blocks. You need to do any distance or bounds checks yourself.