Dev Blog 3: Another Unity3D Technical Tip

Pietro just discovered a very unusual fact about Unity3D relating to colliders. This has too many consequences to cover fully here, so I will leave it to you to consider them.

Any collider that is attached to a child of a parent object is inextricably part of the collider for the parent object.

This means you can have a collision with an empty object that children with colliders. It also can lead to erroneous assumptions about how damage is applied by melee weapons - which is what happened in our case.