Hey, I'm the leader of a team of five creating an xna game using JigLibX as the physics engine. It's really good, but we've ran into an issue regarding freezing. The player is allowed to pick up one item, so to try and find the single nearest item within a certain range, we're using a spherical collision skin around the player to collide with the props, adding the collided props to a list, then finding the nearest list member. This means that we're finding vector lengths of a few objects at a time, rather than hundreds. But! Once a body has frozen due to lack of movement, it no longer triggers the callback function with the prop detection skin. The object does activate when it is nudged by the player, however.
How do I activate an object by just colliding with a skin, rather than a body?