Flying portal balls now spawn a few spark effects
This has been adapted from PortalEffects from HedgeEditor.
HedgeEditor already included such effects for some reason, so they have been removed as redundant.
AAAAaXicY3RgdGBgWcB2gIGDAcjiTgCy+A6AxVhlgFwgwcHA9ISBgYGRYb8AkLAXYGBmsGeAEKwgLphgB3GBBCPQvD8g82pA5tWAzKsBmVcDAB2iEO4=