feat(physics): Allow changing shape with ColliderBuilder for more con…

…trol

src/core/physics/collisions.rs

@@ -304,7 +304,26 @@ impl<'a> CollisionWorld<'a> {
  /// Update shape of actor's [`Collider`]. Warns if entity does not have an [`Actor`] component.
  ///
  /// Updates shape on `Collider` and rebuilds rapier's collider on rigidbody.
+ ///
+ /// Use [`Self::set_actor_shape_from_builder`] for more control over new collider's settings.
  pub fn set_actor_shape(&mut self, entity: Entity, shape: ColliderShape) {
+ let shared_shape = self.ctx.collider_shape_cache.shared_shape(shape);
+ let new_collider = build_actor_rapier_collider(entity, shared_shape.clone());
+ self.set_actor_shape_from_builder(entity, new_collider, shape);
+ }
+
+ /// Update shape of actor's [`Collider`]. Warns if entity does not have an [`Actor`] component.
+ ///
+ /// Updates shape on `Collider` and rebuilds rapier's collider on rigidbody.
+ ///
+ /// Accepts a [`rapier::ColliderBuilder`] (can get one with [`build_actor_rapier_collider`]) so
+ /// other settings may be configured on new collider.
+ pub fn set_actor_shape_from_builder(
+ &mut self,
+ entity: Entity,
+ mut collider_builder: rapier::ColliderBuilder,
+ shape: ColliderShape,
+ ) {
  if !self.actors.contains(entity) {
  // This doesn't technically need be restricted, however we use default settings of collider for Actor,
  // and function would need to be updated to do this correctly for Solids, Tiles, or other classes of body.
@@ -319,24 +338,19 @@ impl<'a> CollisionWorld<'a> {
  let RapierContext {
  rigid_body_set,
  collision_cache,
- collider_shape_cache,
  collider_set,
  islands,
  ..
  } = &mut *self.ctx;
 
  let rapier_body = rigid_body_set.get_mut(handle).unwrap();
- let shared_shape = collider_shape_cache.shared_shape(shape);
-
- // Make new collider from shape
- let mut new_collider = build_actor_rapier_collider(entity, shared_shape.clone());
 
  {
  let collider_handle = rapier_body.colliders()[0];
  let current_rapier_collider = collider_set.get(collider_handle).unwrap();
 
- // Update new collider with any settings that may have changed from default on existing.
- new_collider = new_collider.sensor(current_rapier_collider.is_sensor());
+ // Update new collider with any settings that need to be synchronized
+ collider_builder = collider_builder.sensor(current_rapier_collider.is_sensor());
 
  // Remove body's current collider
  let wake_up = true;
@@ -350,7 +364,7 @@ impl<'a> CollisionWorld<'a> {
  }
 
  // Insert body's new collider
- collider_set.insert_with_parent(new_collider, handle, rigid_body_set);
+ collider_set.insert_with_parent(collider_builder, handle, rigid_body_set);
  } else {
  // We have an existing Collider but no rapier body yet, shape was updated on Collider
  // and will be used when body is created.
@@ -403,7 +417,7 @@ impl<'a> CollisionWorld<'a> {
 }
 
 /// Helper function for configuring ColliderBuilder for actors.
-fn build_actor_rapier_collider(
+pub fn build_actor_rapier_collider(
  entity: Entity,
  shared_shape: rapier::SharedShape,
 ) -> rapier::ColliderBuilder {