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use na::RealField; use std::any::Any; /// A signal handler for contact detection. pub trait BroadPhasePairFilter<N: RealField, Object, Handle>: Any + Send + Sync { /// Activate an action for when two objects start or stop to be close to each other. fn is_pair_valid(&self, b1: &Object, b2: &Object, h1: Handle, h2: Handle) -> bool; } impl<N: RealField, Object, Handle> BroadPhasePairFilter<N, Object, Handle> for () { fn is_pair_valid(&self, _: &Object, _: &Object, _: Handle, _: Handle) -> bool { true } }