diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/dynamics/rigid_body.rs | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/src/dynamics/rigid_body.rs b/src/dynamics/rigid_body.rs index cf52c1f..24e9754 100644 --- a/src/dynamics/rigid_body.rs +++ b/src/dynamics/rigid_body.rs @@ -305,20 +305,26 @@ impl RigidBody { self.ccd.ccd_active } - /// Sets the rigid-body's initial mass properties. + /// Sets the rigid-body's additional mass properties. /// /// If `wake_up` is `true` then the rigid-body will be woken up if it was /// put to sleep because it did not move for a while. #[inline] - pub fn set_mass_properties(&mut self, props: MassProperties, wake_up: bool) { - if self.mprops.local_mprops != props { - if self.is_dynamic() && wake_up { - self.wake_up(true); - } + pub fn set_additional_mass_properties(&mut self, props: MassProperties, wake_up: bool) { + if let Some(add_mprops) = &mut self.mprops.additional_local_mprops { + self.mprops.local_mprops += props; + self.mprops.local_mprops -= **add_mprops; + **add_mprops = props; + } else { + self.mprops.additional_local_mprops = Some(Box::new(props)); + self.mprops.local_mprops += props; + } - self.mprops.local_mprops = props; - self.update_world_mass_properties(); + if self.is_dynamic() && wake_up { + self.wake_up(true); } + + self.update_world_mass_properties(); } /// The handles of colliders attached to this rigid body. |