Merge pull request #173 from DasEtwas/must-use-pub

Add #[must_use] to builders, expose more fields

src/dynamics/rigid_body.rs

@@ -704,21 +704,35 @@ impl RigidBody {
 }
 
 /// A builder for rigid-bodies.
+#[derive(Clone, Debug, PartialEq)]
+#[must_use = "Builder functions return the updated builder"]
 pub struct RigidBodyBuilder {
-    position: Isometry<Real>,
-    linvel: Vector<Real>,
-    angvel: AngVector<Real>,
-    gravity_scale: Real,
-    linear_damping: Real,
-    angular_damping: Real,
+    /// The initial position of the rigid-body to be built.
+    pub position: Isometry<Real>,
+    /// The linear velocity of the rigid-body to be built.
+    pub linvel: Vector<Real>,
+    /// The angular velocity of the rigid-body to be built.
+    pub angvel: AngVector<Real>,
+    /// The scale factor applied to the gravity affecting the rigid-body to be built, `1.0` by default.
+    pub gravity_scale: Real,
+    /// Damping factor for gradually slowing down the translational motion of the rigid-body, `0.0` by default.
+    pub linear_damping: Real,
+    /// Damping factor for gradually slowing down the angular motion of the rigid-body, `0.0` by default.
+    pub angular_damping: Real,
     rb_type: RigidBodyType,
     mprops_flags: RigidBodyMassPropsFlags,
-    mass_properties: MassProperties,
-    can_sleep: bool,
-    sleeping: bool,
-    ccd_enabled: bool,
-    dominance_group: i8,
-    user_data: u128,
+    /// The additional mass properties of the rigid-body being built. See [`RigidBodyBuilder::additional_mass_properties`] for more information.
+    pub mass_properties: MassProperties,
+    /// Whether or not the rigid-body to be created can sleep if it reaches a dynamic equilibrium.
+    pub can_sleep: bool,
+    /// Whether or not the rigid-body is to be created asleep.
+    pub sleeping: bool,
+    /// Whether continuous collision-detection is enabled for the rigid-body to be built.
+    pub ccd_enabled: bool,
+    /// The dominance group of the rigid-body to be built.
+    pub dominance_group: i8,
+    /// An arbitrary user-defined 128-bit integer associated to the rigid-bodies built by this builder.
+    pub user_data: u128,
 }
 
 impl RigidBodyBuilder {
@@ -962,7 +976,7 @@ impl RigidBodyBuilder {
         self
     }
 
-    /// Enabled continuous collision-detection for this rigid-body.
+    /// Sets whether or not continuous collision-detection is enabled for this rigid-body.
     pub fn ccd_enabled(mut self, enabled: bool) -> Self {
         self.ccd_enabled = enabled;
         self