translate Fluid::compute_aabb to parry

Author: ThierryBerger

src/object/fluid.rs

@@ -165,6 +165,12 @@ impl Fluid {
         self.positions.len()
     }
 
+    /// Computes the AABB of this fluid.
+    pub fn compute_aabb(&self, particle_radius: Real) -> parry::bounding_volume::Aabb {
+        use parry::bounding_volume::{details::local_point_cloud_aabb, BoundingVolume};
+        local_point_cloud_aabb(&self.positions).loosened(particle_radius)
+    }
+
     /// The mass of the `i`-th particle of this fluid.
     pub fn particle_mass(&self, i: usize) -> Real {
         self.volumes[i] * self.density0