Groundworks

Players

• A Footprint part left in a world after its mod changed the machine's shape no longer crashes the game when you right-click it, Fast Replace over it, or aim at it holding a block that replaces. It is left an orphan, as a part whose machine is gone is: clicks on it pass, nothing replaces it, and breaking it removes it alone. (#42)

Consumers

• FootprintShape.originOf answers null for a part number outside the shape, and FootprintShape.hasPart says whether a number is in it, so Footprint.standingOrigin answers null for such a part, as for one whose origin is gone, rather than throwing. Fast Replace asks no group's ReplaceBuilder of an orphan part, so a builder need not guard against one. (#42)