[WIP] Added serde optionnal dependency.

build/nphysics2d/Cargo.toml

@@ -27,6 +27,10 @@ nalgebra   = "0.16"
 approx     = "0.3"
 downcast   = "0.9"
 ncollide2d = "0.17"
+serde      = { version = "1.0", optional = true, features = ["derive"]}
+
+[target.'cfg(feature = "serde")'.dependencies]
+nalgebra = { version = "0.16", features = ["serde-serialize"] }
 
 [target.wasm32-unknown-unknown.dependencies]
 stdweb = {version = "0.4", optional = true}

build/nphysics3d/Cargo.toml

@@ -20,13 +20,17 @@ name = "nphysics3d"
 path = "../../src/lib.rs"
 
 [dependencies]
-num-traits = "0.2"
-slab       = "0.4"
-alga       = "0.7"
-nalgebra   = "0.16"
-approx     = "0.3"
-downcast   = "0.9"
-ncollide3d = "0.17"
+num-traits     = "0.2"
+slab           = "0.4"
+alga           = "0.7"
+nalgebra       = "0.16"
+approx         = "0.3"
+downcast       = "0.9"
+ncollide3d     = "0.17"
+serde          = { version = "1.0", optional = true, features = ["derive"] }
+
+[target.'cfg(feature = "serde")'.dependencies]
+nalgebra = { version = "0.16", features = ["serde-serialize"] }
 
 [target.wasm32-unknown-unknown.dependencies]
 stdweb = {version = "0.4", optional = true}

src/algebra/force2.rs

@@ -6,6 +6,7 @@ use std::ops::{Add, AddAssign, Mul, Neg, Sub, SubAssign};
 /// A force with a linear and angular (torque) component.
 #[repr(C)]
 #[derive(Copy, Clone, Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Force2<N: Real> {
     /// The linear force.
     pub linear: Vector2<N>,

src/algebra/force3.rs

@@ -6,6 +6,7 @@ use std::ops::{Add, AddAssign, Mul, Neg, Sub, SubAssign};
 /// A force with a linear and angular (torque) component.
 #[repr(C)]
 #[derive(Copy, Clone, Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Force3<N: Real> {
     /// The linear force.
     pub linear: Vector3<N>,

src/algebra/inertia2.rs

@@ -6,6 +6,7 @@ use algebra::{Force2, Velocity2};
 
 /// The inertia of a rigid body grouping both its mass and its angular inertia.
 #[derive(Clone, Copy, Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Inertia2<N: Real> {
     /// The linear part (mass) of the inertia.
     pub linear: N,

src/algebra/inertia3.rs

@@ -5,6 +5,7 @@ use na::{self, Isometry3, Matrix3, Matrix6, Real, U3};
 
 /// The inertia of a rigid body grouping both its mass and its angular inertia.
 #[derive(Clone, Copy, Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Inertia3<N: Real> {
     /// The linear part (mass) of the inertia.
     pub linear: N,

src/algebra/velocity2.rs

@@ -6,6 +6,7 @@ use std::ops::{Add, AddAssign, Mul, Sub, SubAssign};
 /// A velocity structure combining both the linear angular velocities of a point.
 #[repr(C)]
 #[derive(Copy, Clone, Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Velocity2<N: Real> {
     /// The linear velocity.
     pub linear: Vector2<N>,

src/algebra/velocity3.rs

@@ -6,6 +6,7 @@ use std::ops::{Add, AddAssign, Mul, Sub, SubAssign};
 /// A velocity structure combining both the linear angular velocities of a point.
 #[repr(C)]
 #[derive(Copy, Clone, Debug)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Velocity3<N: Real> {
     /// The linear velocity.
     pub linear: Vector3<N>,

src/lib.rs

@@ -105,6 +105,11 @@ extern crate ncollide2d as ncollide;
 #[cfg(feature = "dim3")]
 extern crate ncollide3d as ncollide;
 extern crate num_traits as num;
+
+#[cfg(feature = "serde")]
+#[macro_use]
+extern crate serde;
+
 extern crate slab;
 
 /*

src/object/collider.rs

@@ -71,6 +71,12 @@ impl<N: Real> ColliderData<N> {
         &self.material
     }
 
+    /// Set the material of this collider.
+    #[inline]
+    pub fn set_material(&mut self, material: Material<N>) {
+        self.material = material;
+    }
+
     #[inline]
     pub(crate) fn body_status_dependent_ndofs(&self) -> usize {
         self.body_status_dependent_ndofs

src/object/material.rs

@@ -7,6 +7,7 @@ use na::{self, Real};
 /// will average the coefficient of the two surfaces in contact in order
 /// to deduce the restitution/friction coefficient.
 #[derive(Clone)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 pub struct Material<N: Real> {
     /// Restitution coefficient of the surface.
     pub restitution: N,

src/world/world.rs

@@ -91,6 +91,11 @@ impl<N: Real> World<N> {
         self.prediction
     }
 
+    /// Angular prediction used internally for collision detection.
+    pub fn angular_prediction(&self) -> N {
+        self.angular_prediction
+    }
+
     /// Disable the perfomance counters that measure various times and statistics during a timestep.
     pub fn disable_performance_counters(&mut self) {
         self.counters.disable();