Remove some irrelevant code.

26 files changed, 87 insertions, 472 deletions

diff --git a/Cargo.toml b/Cargo.toml
index eaafe91..0cde558 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,8 +10,10 @@ members = [ "build/rapier2d", "build/rapier_testbed2d", "examples2d", "benchmark
 #nphysics2d = { path = "../nphysics/build/nphysics2d" }
 #nphysics3d = { path = "../nphysics/build/nphysics3d" }
 #kiss3d = { path = "../kiss3d" }
-eagl2d = { path = "../eagl/build/eagl2d" }
-eagl3d = { path = "../eagl/build/eagl3d" }
+#cdl2d = { path = "../cdl/build/cdl2d" }
+#cdl3d = { path = "../cdl/build/cdl3d" }
+cdl2d = { git = "https://github.com/sebcrozet/cdl.git" }
+cdl3d = { git = "https://github.com/sebcrozet/cdl.git" }
 
 [profile.release]
 #debug = true
diff --git a/build/rapier2d/Cargo.toml b/build/rapier2d/Cargo.toml
index c20833c..3bbb8f0 100644
--- a/build/rapier2d/Cargo.toml
+++ b/build/rapier2d/Cargo.toml
@@ -21,8 +21,8 @@ simd-nightly = [ "simba/packed_simd", "simd-is-enabled" ]
 # enabled with the "simd-stable" or "simd-nightly" feature.
 simd-is-enabled = [ ]
 wasm-bindgen = [ "instant/wasm-bindgen" ]
-serde-serialize = [ "erased-serde", "nalgebra/serde-serialize", "eagl2d/serde-serialize", "serde", "generational-arena/serde", "bit-vec/serde", "arrayvec/serde" ]
-enhanced-determinism = [ "simba/libm_force", "eagl2d/enhanced-determinism", "indexmap" ]
+serde-serialize = [ "erased-serde", "nalgebra/serde-serialize", "cdl2d/serde-serialize", "serde", "generational-arena/serde", "bit-vec/serde", "arrayvec/serde" ]
+enhanced-determinism = [ "simba/libm_force", "cdl2d/enhanced-determinism", "indexmap" ]
 
 [lib]
 name = "rapier2d"
@@ -35,7 +35,7 @@ vec_map = "0.8"
 instant = { version = "0.1", features = [ "now" ]}
 num-traits = "0.2"
 nalgebra = "0.23"
-eagl2d = "0.1"
+cdl2d = "0.1"
 simba = "0.3"
 approx = "0.4"
 rayon = { version = "1", optional = true }
diff --git a/build/rapier3d/Cargo.toml b/build/rapier3d/Cargo.toml
index a9abef8..d2a1fae 100644
--- a/build/rapier3d/Cargo.toml
+++ b/build/rapier3d/Cargo.toml
@@ -15,14 +15,14 @@ edition = "2018"
 default = [ "dim3" ]
 dim3    = [ ]
 parallel = [ "rayon" ]
-simd-stable = [ "eagl3d/simd-stable", "simba/wide", "simd-is-enabled" ]
-simd-nightly = [ "eagl3d/simd-nightly", "simba/packed_simd", "simd-is-enabled" ]
+simd-stable = [ "cdl3d/simd-stable", "simba/wide", "simd-is-enabled" ]
+simd-nightly = [ "cdl3d/simd-nightly", "simba/packed_simd", "simd-is-enabled" ]
 # Do not enable this feature directly. It is automatically
 # enabled with the "simd-stable" or "simd-nightly" feature.
 simd-is-enabled = [ ]
 wasm-bindgen = [ "instant/wasm-bindgen" ]
-serde-serialize = [ "erased-serde", "nalgebra/serde-serialize", "eagl3d/serde-serialize", "serde", "generational-arena/serde", "bit-vec/serde" ]
-enhanced-determinism = [ "simba/libm_force", "eagl3d/enhanced-determinism" ]
+serde-serialize = [ "erased-serde", "nalgebra/serde-serialize", "cdl3d/serde-serialize", "serde", "generational-arena/serde", "bit-vec/serde" ]
+enhanced-determinism = [ "simba/libm_force", "cdl3d/enhanced-determinism" ]
 
 [lib]
 name = "rapier3d"
@@ -35,7 +35,7 @@ vec_map = "0.8"
 instant = { version = "0.1", features = [ "now" ]}
 num-traits = "0.2"
 nalgebra = "0.23"
-eagl3d = "0.1"
+cdl3d = "0.1"
 simba = "0.3"
 approx = "0.4"
 rayon = { version = "1", optional = true }
diff --git a/build/rapier_testbed2d/Cargo.toml b/build/rapier_testbed2d/Cargo.toml
index 23be92e..63d1136 100644
--- a/build/rapier_testbed2d/Cargo.toml
+++ b/build/rapier_testbed2d/Cargo.toml
@@ -31,7 +31,7 @@ instant    = { version = "0.1", features = [ "web-sys", "now" ]}
 bitflags   = "1"
 num_cpus   = { version = "1", optional = true }
 wrapped2d  = { version = "0.4", optional = true }
-eagl2d = "0.1"
+cdl2d = "0.1"
 ncollide2d = "0.26"
 nphysics2d = { version = "0.18", optional = true }
 crossbeam = "0.8"
diff --git a/build/rapier_testbed3d/Cargo.toml b/build/rapier_testbed3d/Cargo.toml
index 2820a7c..830ceab 100644
--- a/build/rapier_testbed3d/Cargo.toml
+++ b/build/rapier_testbed3d/Cargo.toml
@@ -30,7 +30,7 @@ instant    = { version = "0.1", features = [ "web-sys", "now" ]}
 bitflags   = "1"
 glam       = { version = "0.10", optional = true }
 num_cpus   = { version = "1", optional = true }
-eagl3d = "0.1"
+cdl3d = "0.1"
 ncollide3d = "0.26"
 nphysics3d = { version = "0.18", optional = true }
 physx      = { version = "0.8", optional = true }
diff --git a/src/data/arena.rs b/src/data/arena.rs
index 3a24cd1..8a694dc 100644
--- a/src/data/arena.rs
+++ b/src/data/arena.rs
@@ -3,7 +3,7 @@
 //! See  https://github.com/fitzgen/generational-arena/blob/master/src/lib.rs.
 //! This has been modified to have a fully deterministic deserialization (including for the order of
 //! Index attribution after a deserialization of the arena.
-use eagl::partitioning::IndexedData;
+use cdl::partitioning::IndexedData;
 use std::cmp;
 use std::iter::{self, Extend, FromIterator, FusedIterator};
 use std::mem;
diff --git a/src/data/mod.rs b/src/data/mod.rs
index eb0a229..1c53db4 100644
--- a/src/data/mod.rs
+++ b/src/data/mod.rs
@@ -1,7 +1,7 @@
 //! Data structures modified with guaranteed deterministic behavior after deserialization.
 
 pub use self::coarena::Coarena;
-pub use eagl::utils::MaybeSerializableData;
+pub use cdl::utils::MaybeSerializableData;
 
 pub mod arena;
 mod coarena;
diff --git a/src/dynamics/mod.rs b/src/dynamics/mod.rs
index 76e9de2..c2c36ef 100644
--- a/src/dynamics/mod.rs
+++ b/src/dynamics/mod.rs
@@ -9,7 +9,7 @@ pub use self::joint::{
 };
 pub use self::rigid_body::{ActivationStatus, BodyStatus, RigidBody, RigidBodyBuilder};
 pub use self::rigid_body_set::{BodyPair, RigidBodyHandle, RigidBodySet};
-pub use eagl::shape::MassProperties;
+pub use cdl::shape::MassProperties;
 // #[cfg(not(feature = "parallel"))]
 pub(crate) use self::joint::JointGraphEdge;
 pub(crate) use self::rigid_body::RigidBodyChanges;
diff --git a/src/dynamics/solver/joint_constraint/fixed_velocity_constraint_wide.rs b/src/dynamics/solver/joint_constraint/fixed_velocity_constraint_wide.rs
index ce42da8..6584ea2 100644
--- a/src/dynamics/solver/joint_constraint/fixed_velocity_constraint_wide.rs
+++ b/src/dynamics/solver/joint_constraint/fixed_velocity_constraint_wide.rs
@@ -13,7 +13,7 @@ use crate::utils::{WAngularInertia, WCross, WCrossMatrix};
 use na::{Cholesky, Matrix6, Vector6, U3};
 #[cfg(feature = "dim2")]
 use {
-    eagl::utils::SdpMatrix3,
+    cdl::utils::SdpMatrix3,
     na::{Matrix3, Vector3},
 };
 
diff --git a/src/dynamics/solver/joint_constraint/prismatic_velocity_constraint.rs b/src/dynamics/solver/joint_constraint/prismatic_velocity_constraint.rs
index a2c7c2c..9e39bd6 100644
--- a/src/dynamics/solver/joint_constraint/prismatic_velocity_constraint.rs
+++ b/src/dynamics/solver/joint_constraint/prismatic_velocity_constraint.rs
@@ -8,7 +8,7 @@ use crate::utils::{WAngularInertia, WCross, WCrossMatrix};
 use na::{Cholesky, Matrix3x2, Matrix5, Vector5, U2, U3};
 #[cfg(feature = "dim2")]
 use {
-    eagl::utils::SdpMatrix2,
+    cdl::utils::SdpMatrix2,
     na::{Matrix2, Vector2},
 };
 
diff --git a/src/dynamics/solver/joint_constraint/prismatic_velocity_constraint_wide.rs b/src/dynamics/solver/joint_constraint/prismatic_velocity_constraint_wide.rs
index 86e0c78..dadf5da 100644
--- a/src/dynamics/solver/joint_constraint/prismatic_velocity_constraint_wide.rs
+++ b/src/dynamics/solver/joint_constraint/prismatic_velocity_constraint_wide.rs
@@ -12,7 +12,7 @@ use crate::utils::{WAngularInertia, WCross, WCrossMatrix};
 use na::{Cholesky, Matrix3x2, Matrix5, Vector5, U2, U3};
 #[cfg(feature = "dim2")]
 use {
-    eagl::utils::SdpMatrix2,
+    cdl::utils::SdpMatrix2,
     na::{Matrix2, Vector2},
 };
 
diff --git a/src/geometry/ball.rs b/src/geometry/ball.rs
deleted file mode 100644
index 2d9f7be..0000000
--- a/src/geometry/ball.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-#[cfg(feature = "simd-is-enabled")]
-use crate::math::{Point, SimdReal};
-
-#[cfg(feature = "simd-is-enabled")]
-#[derive(Copy, Clone, Debug)]
-pub(crate) struct WBall {
-    pub center: Point<SimdReal>,
-    pub radius: SimdReal,
-}
-
-#[cfg(feature = "simd-is-enabled")]
-impl WBall {
-    pub fn new(center: Point<SimdReal>, radius: SimdReal) -> Self {
-        WBall { center, radius }
-    }
-}
diff --git a/src/geometry/broad_phase_multi_sap.rs b/src/geometry/broad_phase_multi_sap.rs
index 4242d77..dbcc271 100644
--- a/src/geometry/broad_phase_multi_sap.rs
+++ b/src/geometry/broad_phase_multi_sap.rs
@@ -3,8 +3,8 @@ use crate::dynamics::RigidBodySet;
 use crate::geometry::{ColliderHandle, ColliderSet, RemovedCollider};
 use crate::math::{Point, Vector, DIM};
 use bit_vec::BitVec;
-use eagl::bounding_volume::{BoundingVolume, AABB};
-use eagl::utils::hashmap::HashMap;
+use cdl::bounding_volume::{BoundingVolume, AABB};
+use cdl::utils::hashmap::HashMap;
 use std::cmp::Ordering;
 use std::ops::{Index, IndexMut};
 
@@ -477,8 +477,8 @@ pub struct BroadPhase {
     #[cfg_attr(
         feature = "serde-serialize",
         serde(
-            serialize_with = "eagl::utils::hashmap::serialize_hashmap_capacity",
-            deserialize_with = "eagl::utils::hashmap::deserialize_hashmap_capacity"
+            serialize_with = "cdl::utils::hashmap::serialize_hashmap_capacity",
+            deserialize_with = "cdl::utils::hashmap::deserialize_hashmap_capacity"
         )
     )]
     reporting: HashMap<(u32, u32), bool>, // Workspace
diff --git a/src/geometry/collider.rs b/src/geometry/collider.rs
index db418a3..46153ac 100644
--- a/src/geometry/collider.rs
+++ b/src/geometry/collider.rs
@@ -1,13 +1,13 @@
+use crate::cdl::shape::HalfSpace;
 use crate::dynamics::{MassProperties, RigidBodyHandle, RigidBodySet};
-use crate::eagl::shape::HalfSpace;
 use crate::geometry::InteractionGroups;
 use crate::math::{AngVector, Isometry, Point, Rotation, Vector};
-use eagl::bounding_volume::AABB;
-use eagl::shape::{
+use cdl::bounding_volume::AABB;
+use cdl::shape::{
     Ball, Capsule, Cuboid, HeightField, Segment, Shape, ShapeType, TriMesh, Triangle,
 };
 #[cfg(feature = "dim3")]
-use eagl::shape::{Cone, Cylinder, RoundCylinder};
+use cdl::shape::{Cone, Cylinder, RoundCylinder};
 use na::Point3;
 use std::ops::Deref;
 use std::sync::Arc;
diff --git a/src/geometry/contact_pair.rs b/src/geometry/contact_pair.rs
index ba5da2a..990e61c 100644
--- a/src/geometry/contact_pair.rs
+++ b/src/geometry/contact_pair.rs
@@ -1,8 +1,8 @@
 use crate::dynamics::{BodyPair, RigidBodyHandle, RigidBodySet};
 use crate::geometry::{Collider, ColliderPair, ColliderSet, Contact, ContactManifold};
 use crate::math::{Isometry, Point, Vector};
-use eagl::query::ContactManifoldsWorkspace;
-use eagl::utils::MaybeSerializableData;
+use cdl::query::ContactManifoldsWorkspace;
+use cdl::utils::MaybeSerializableData;
 #[cfg(feature = "simd-is-enabled")]
 use {
     crate::math::{SimdReal, SIMD_WIDTH},
diff --git a/src/geometry/mod.rs b/src/geometry/mod.rs
index efb0cd4..2d0b5d9 100644
--- a/src/geometry/mod.rs
+++ b/src/geometry/mod.rs
@@ -10,39 +10,38 @@ pub use self::interaction_graph::{
     ColliderGraphIndex, InteractionGraph, RigidBodyGraphIndex, TemporaryInteractionIndex,
 };
 pub use self::narrow_phase::NarrowPhase;
-pub use self::polygon::Polygon;
-pub use self::user_callbacks::{ContactPairFilter, PairFilterContext, ProximityPairFilter};
+pub use self::pair_filter::{ContactPairFilter, PairFilterContext, ProximityPairFilter};
 
-pub use eagl::query::{KinematicsCategory, TrackedContact};
+pub use cdl::query::{KinematicsCategory, TrackedContact};
 
-pub type Contact = eagl::query::TrackedContact<ContactData>;
-pub type ContactManifold = eagl::query::ContactManifold<ContactManifoldData, ContactData>;
+pub type Contact = cdl::query::TrackedContact<ContactData>;
+pub type ContactManifold = cdl::query::ContactManifold<ContactManifoldData, ContactData>;
 /// A segment shape.
-pub type Segment = eagl::shape::Segment;
+pub type Segment = cdl::shape::Segment;
 /// A cuboid shape.
-pub type Cuboid = eagl::shape::Cuboid;
+pub type Cuboid = cdl::shape::Cuboid;
 /// A triangle shape.
-pub type Triangle = eagl::shape::Triangle;
+pub type Triangle = cdl::shape::Triangle;
 /// A ball shape.
-pub type Ball = eagl::shape::Ball;
+pub type Ball = cdl::shape::Ball;
 /// A capsule shape.
-pub type Capsule = eagl::shape::Capsule;
+pub type Capsule = cdl::shape::Capsule;
 /// A heightfield shape.
-pub type HeightField = eagl::shape::HeightField;
+pub type HeightField = cdl::shape::HeightField;
 /// A cylindrical shape.
 #[cfg(feature = "dim3")]
-pub type Cylinder = eagl::shape::Cylinder;
+pub type Cylinder = cdl::shape::Cylinder;
 /// A cone shape.
 #[cfg(feature = "dim3")]
-pub type Cone = eagl::shape::Cone;
+pub type Cone = cdl::shape::Cone;
 /// An axis-aligned bounding box.
-pub type AABB = eagl::bounding_volume::AABB;
+pub type AABB = cdl::bounding_volume::AABB;
 /// A ray that can be cast against colliders.
-pub type Ray = eagl::query::Ray;
+pub type Ray = cdl::query::Ray;
 /// The intersection between a ray and a  collider.
-pub type RayIntersection = eagl::query::RayIntersection;
+pub type RayIntersection = cdl::query::RayIntersection;
 /// The the projection of a point on a collider.
-pub type PointProjection = eagl::query::PointProjection;
+pub type PointProjection = cdl::query::PointProjection;
 
 #[derive(Copy, Clone, Hash, Debug)]
 /// Events occurring when two collision objects start or stop being in contact (or penetration).
@@ -81,19 +80,16 @@ impl IntersectionEvent {
     }
 }
 
-#[cfg(feature = "simd-is-enabled")]
-pub(crate) use self::ball::WBall;
 pub(crate) use self::broad_phase_multi_sap::{BroadPhasePairEvent, ColliderPair};
 pub(crate) use self::collider_set::RemovedCollider;
 #[cfg(feature = "simd-is-enabled")]
 pub(crate) use self::contact_pair::WContact;
 pub(crate) use self::narrow_phase::ContactManifoldIndex;
-pub(crate) use eagl::partitioning::WQuadtree;
+pub(crate) use cdl::partitioning::WQuadtree;
 //pub(crate) use self::z_order::z_cmp_floats;
 pub use self::interaction_groups::InteractionGroups;
-pub use eagl::shape::*;
+pub use cdl::shape::*;
 
-mod ball;
 mod broad_phase_multi_sap;
 mod collider;
 mod collider_set;
@@ -101,8 +97,6 @@ mod collider_set;
 mod contact_pair;
 mod interaction_graph;
 mod narrow_phase;
-mod polygon;
-pub(crate) mod sat;
 //mod z_order;
 mod interaction_groups;
-mod user_callbacks;
+mod pair_filter;
diff --git a/src/geometry/narrow_phase.rs b/src/geometry/narrow_phase.rs
index d9a4f31..ba60ef4 100644
--- a/src/geometry/narrow_phase.rs
+++ b/src/geometry/narrow_phase.rs
@@ -1,26 +1,19 @@
 #[cfg(feature = "parallel")]
 use rayon::prelude::*;
 
+use crate::data::pubsub::Subscription;
+use crate::data::Coarena;
 use crate::dynamics::RigidBodySet;
-use eagl::query::{DefaultQueryDispatcher, PersistentQueryDispatcher, QueryDispatcher};
-//#[cfg(feature = "simd-is-enabled")]
-//use crate::geometry::{
-//    contact_generator::ContactGenerationContextSimd,
-//    intersection_detector::ProximityDetectionContextSimd, WBall,
-//};
 use crate::geometry::{
-    BroadPhasePairEvent, ColliderGraphIndex, ColliderHandle, ContactEvent, ContactManifoldData,
-    ContactPairFilter, IntersectionEvent, PairFilterContext, ProximityPairFilter, RemovedCollider,
-    SolverFlags,
+    BroadPhasePairEvent, ColliderGraphIndex, ColliderHandle, ContactData, ContactEvent,
+    ContactManifoldData, ContactPairFilter, IntersectionEvent, PairFilterContext,
+    ProximityPairFilter, RemovedCollider, SolverFlags,
 };
 use crate::geometry::{ColliderSet, ContactManifold, ContactPair, InteractionGraph};
-//#[cfg(feature = "simd-is-enabled")]
-//use crate::math::{SimdReal, SIMD_WIDTH};
-use crate::data::pubsub::Subscription;
-use crate::data::Coarena;
 use crate::pipeline::EventHandler;
+use cdl::query::{DefaultQueryDispatcher, PersistentQueryDispatcher, QueryDispatcher};
 use std::collections::HashMap;
-//use simba::simd::SimdValue;
+use std::sync::Arc;
 
 #[cfg_attr(feature = "serde-serialize", derive(Serialize, Deserialize))]
 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
@@ -42,14 +35,17 @@ impl ColliderGraphIndices {
 #[cfg_attr(feature = "serde-serialize", derive(Serialize, Deserialize))]
 #[derive(Clone)]
 pub struct NarrowPhase {
+    #[serde(skip, default = "default_query_dispatcher")]
+    query_dispatcher: Arc<dyn PersistentQueryDispatcher<ContactManifoldData, ContactData>>,
     contact_graph: InteractionGraph<ContactPair>,
     intersection_graph: InteractionGraph<bool>,
     graph_indices: Coarena<ColliderGraphIndices>,
     removed_colliders: Option<Subscription<RemovedCollider>>,
-    //    ball_ball: Vec<usize>,        // Workspace: Vec<*mut ContactPair>,
-    //    shape_shape: Vec<usize>,      // Workspace: Vec<*mut ContactPair>,
-    //    ball_ball_prox: Vec<usize>,   // Workspace: Vec<*mut bool>,
-    //    shape_shape_prox: Vec<usize>, // Workspace: Vec<*mut bool>,
+}
+
+fn default_query_dispatcher() -> Arc<dyn PersistentQueryDispatcher<ContactManifoldData, ContactData>>
+{
+    Arc::new(DefaultQueryDispatcher)
 }
 
 pub(crate) type ContactManifoldIndex = usize;
@@ -57,15 +53,20 @@ pub(crate) type ContactManifoldIndex = usize;
 impl NarrowPhase {
     /// Creates a new empty narrow-phase.
     pub fn new() -> Self {
+        Self::with_query_dispatcher(DefaultQueryDispatcher)
+    }
+
+    /// Creates a new empty narrow-phase with a custom query dispatcher.
+    pub fn with_query_dispatcher<D>(d: D) -> Self
+    where
+        D: 'static + PersistentQueryDispatcher<ContactManifoldData, ContactData>,
+    {
         Self {
+            query_dispatcher: Arc::new(d),
             contact_graph: InteractionGraph::new(),
             intersection_graph: InteractionGraph::new(),
             graph_indices: Coarena::new(),
             removed_colliders: None,
-            //            ball_ball: Vec::new(),
-            //            shape_shape: Vec::new(),
-            //            ball_ball_prox: Vec::new(),
-            //            shape_shape_prox: Vec::new(),
         }
     }
 
@@ -391,6 +392,7 @@ impl NarrowPhase {
         events: &dyn EventHandler,
     ) {
         let nodes = &self.intersection_graph.graph.nodes;
+        let query_dispatcher = &*self.query_dispatcher;
         par_iter_mut!(&mut self.intersection_graph.graph.edges).for_each(|edge| {
             let handle1 = nodes[edge.source().index()].weight;
             let handle2 = nodes[edge.target().index()].weight;
@@ -434,9 +436,9 @@ impl NarrowPhase {
             }
 
             let pos12 = co1.position().inverse() * co2.position();
-            let dispatcher = DefaultQueryDispatcher;
 
-            if let Ok(intersection) = dispatcher.intersection_test(&pos12, co1.shape(), co2.shape())
+            if let Ok(intersection) =
+                query_dispatcher.intersection_test(&pos12, co1.shape(), co2.shape())
             {
                 if intersection != edge.weight {
                     edge.weight = intersection;
@@ -458,6 +460,8 @@ impl NarrowPhase {
         pair_filter: Option<&dyn ContactPairFilter>,
         events: &dyn EventHandler,
     ) {
+        let query_dispatcher = &*self.query_dispatcher;
+
         par_iter_mut!(&mut self.contact_graph.graph.edges).for_each(|edge| {
             let pair = &mut edge.weight;
             let co1 = &colliders[pair.pair.collider1];
@@ -507,9 +511,8 @@ impl NarrowPhase {
                 solver_flags.remove(SolverFlags::COMPUTE_IMPULSES);
             }
 
-            let dispatcher = DefaultQueryDispatcher;
             let pos12 = co1.position().inverse() * co2.position();
-            dispatcher.contact_manifolds(
+            query_dispatcher.contact_manifolds(
                 &pos12,
                 co1.shape(),
                 co2.shape(),
diff --git a/src/geometry/user_callbacks.rs b/src/geometry/pair_filter.rs
index 629f707..629f707 100644
--- a/src/geometry/user_callbacks.rs
+++ b/src/geometry/pair_filter.rs
diff --git a/src/geometry/polygon.rs b/src/geometry/polygon.rs
deleted file mode 100644
index 15cf005..0000000
--- a/src/geometry/polygon.rs
+++ /dev/null
@@ -1,78 +0,0 @@
-#![allow(dead_code)] // TODO: remove this once we support polygons.
-
-use crate::math::{Isometry, Point, Vector};
-use eagl::bounding_volume::AABB;
-
-#[derive(Clone)]
-#[cfg_attr(feature = "serde-serialize", derive(Serialize, Deserialize))]
-/// A convex planar polygon.
-pub struct Polygon {
-    pub(crate) vertices: Vec<Point<f32>>,
-    pub(crate) normals: Vec<Vector<f32>>,
-}
-
-impl Polygon {
-    /// Builds a new polygon from a set of vertices and normals.
-    ///
-    /// The vertices must be ordered in such a way that two consecutive
-    /// vertices determines an edge of the polygon. For example `vertices[0], vertices[1]`
-    /// is an edge, `vertices[1], vertices[2]` is the next edge, etc. The last edge will
-    /// be `vertices[vertices.len() - 1], vertices[0]`.
-    /// The vertices must be given in counter-clockwise order.
-    /// The vertices must form a convex polygon.
-    ///
-    /// One normal must be provided per edge and mut point towards the outside of the polygon.
-    pub fn new(vertices: Vec<Point<f32>>, normals: Vec<Vector<f32>>) -> Self {
-        Self { vertices, normals }
-    }
-
-    /// Compute the axis-aligned bounding box of the polygon.
-    pub fn aabb(&self, pos: &Isometry<f32>) -> AABB {
-        let p0 = pos * self.vertices[0];
-        let mut mins = p0;
-        let mut maxs = p0;
-
-        for pt in &self.vertices[1..] {
-            let pt = pos * pt;
-            mins = mins.inf(&pt);
-            maxs = maxs.sup(&pt);
-        }
-
-        AABB::new(mins.into(), maxs.into())
-    }
-
-    /// The vertices of this polygon.
-    pub fn vertices(&self) -> &[Point<f32>] {
-        &self.vertices
-    }
-
-    pub(crate) fn support_point(&self, dir: &Vector<f32>) -> usize {
-        let mut best_dot = -f32::MAX;
-        let mut best_i = 0;
-
-        for (i, pt) in self.vertices.iter().enumerate() {
-            let dot = pt.coords.dot(&dir);
-            if dot > best_dot {
-                best_dot = dot;
-                best_i = i;
-            }
-        }
-
-        best_i
-    }
-
-    pub(crate) fn support_face(&self, dir: &Vector<f32>) -> usize {
-        let mut max_dot = -f32::MAX;
-        let mut max_dot_i = 0;
-
-        for (i, normal) in self.normals.iter().enumerate() {
-            let dot = normal.dot(dir);
-            if dot > max_dot {
-                max_dot = dot;
-                max_dot_i = i;
-            }
-        }
-
-        max_dot_i
-    }
-}
diff --git a/src/geometry/polygon_intersection.rs b/src/geometry/polygon_intersection.rs
deleted file mode 100644
index a2186df..0000000
--- a/src/geometry/polygon_intersection.rs
+++ /dev/null
@@ -1,263 +0,0 @@
-use na::{Point2, Real};
-
-use shape::SegmentPointLocation;
-use utils::{self, SegmentsIntersection, TriangleOrientation};
-
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
-enum InFlag {
-    PIn,
-    QIn,
-    Unknown,
-}
-
-/// Location of a point on a polyline.
-pub enum PolylinePointLocation<N> {
-    /// Point on a vertex.
-    OnVertex(usize),
-    /// Point on an edge.
-    OnEdge(usize, usize, [N; 2]),
-}
-
-impl<N: Real> PolylinePointLocation<N> {
-    /// Computes the point corresponding to this location.
-    pub fn to_point(&self, pts: &[Point2<N>]) -> Point2<N> {
-        match self {
-            PolylinePointLocation::OnVertex(i) => pts[*i],
-            PolylinePointLocation::OnEdge(i1, i2, bcoords) => {
-                pts[*i1] * bcoords[0] + pts[*i2].coords * bcoords[1]
-            }
-        }
-    }
-
-    fn from_segment_point_location(a: usize, b: usize, loc: SegmentPointLocation<N>) -> Self {
-        match loc {
-            SegmentPointLocation::OnVertex(0) => PolylinePointLocation::OnVertex(a),
-            SegmentPointLocation::OnVertex(1) => PolylinePointLocation::OnVertex(b),
-            SegmentPointLocation::OnVertex(_) => unreachable!(),
-            SegmentPointLocation::OnEdge(bcoords) => PolylinePointLocation::OnEdge(a, b, bcoords),
-        }
-    }
-}
-
-/// Computes the intersection points of two convex polygons.
-///
-/// The resulting polygon is output vertex-by-vertex to the `out` closure.
-pub fn convex_polygons_intersection_points<N: Real>(
-    poly1: &[Point2<N>],
-    poly2: &[Point2<N>],
-    out: &mut Vec<Point2<N>>,
-) {
-    convex_polygons_intersection(poly1, poly2, |loc1, loc2| {
-        if let Some(loc1) = loc1 {
-            out.push(loc1.to_point(poly1))
-        } else if let Some(loc2) = loc2 {
-            out.push(loc2.to_point(poly2))
-        }
-    })
-}
-
-/// Computes the intersection of two convex polygons.
-///
-/// The resulting polygon is output vertex-by-vertex to the `out` closure.
-pub fn convex_polygons_intersection<N: Real>(
-    poly1: &[Point2<N>],
-    poly2: &[Point2<N>],
-    mut out: impl FnMut(Option<PolylinePointLocation<N>>, Option<PolylinePointLocation<N>>),
-) {
-    // FIXME: this does not handle correctly the case where the
-    // first triangle of the polygon is degenerate.
-    let rev1 = poly1.len() > 2
-        && utils::triangle_orientation(&poly1[0], &poly1[1], &poly1[2])
-            == TriangleOrientation::Clockwise;
-    let rev2 = poly2.len() > 2
-        && utils::triangle_orientation(&poly2[0], &poly2[1], &poly2[2])
-            == TriangleOrientation::Clockwise;
-
-    // println!("rev1: {}, rev2: {}", rev1, rev2);
-
-    let n = poly1.len();
-    let m = poly2.len();
-
-    let mut a = 0;
-    let mut b = 0;
-    let mut aa = 0;
-    let mut ba = 0;
-    let mut inflag = InFlag::Unknown;
-    let mut first_point_found = false;
-
-    // Quit when both adv. indices have cycled, or one has cycled twice.
-    while (aa < n || ba < m) && aa < 2 * n && ba < 2 * m {
-        let (a1, a2) = if rev1 {
-            ((n - a) % n, n - a - 1)
-        } else {
-            ((a + n - 1) % n, a)
-        };
-
-        let (b1, b2) = if rev2 {
-            ((m - b) % m, m - b - 1)
-        } else {
-            ((b + m - 1) % m, b)
-        };
-
-        // println!("Current indices: ({}, {}), ({}, {})", a1, a2, b1, b2);
-
-        let dir_edge1 = poly1[a2] - poly1[a1];
-        let dir_edge2 = poly2[b2] - poly2[b1];
-
-        let cross = utils::triangle_orientation(
-            &Point2::origin(),
-            &Point2::from_coordinates(dir_edge1),
-            &Point2::from_coordinates(dir_edge2),
-        );
-        let aHB = utils::triangle_orientation(&poly2[b1], &poly2[b2], &poly1[a2]);
-        let bHA = utils::triangle_orientation(&poly1[a1], &poly1[a2], &poly2[b2]);
-
-        // If edge1 & edge2 intersect, update inflag.
-        if let Some(inter) =
-            utils::segments_intersection(&poly1[a1], &poly1[a2], &poly2[b1], &poly2[b2])
-        {
-            match inter {
-                SegmentsIntersection::Point { loc1, loc2 } => {
-                    let loc1 = PolylinePointLocation::from_segment_point_location(a1, a2, loc1);
-                    let loc2 = PolylinePointLocation::from_segment_point_location(b1, b2, loc2);
-                    out(Some(loc1), Some(loc2));
-
-                    if inflag == InFlag::Unknown && !first_point_found {
-                        // This is the first point.
-                        aa = 0;
-                        ba = 0;
-                        first_point_found = true;
-                    }
-
-                    // Update inflag.
-                    if aHB == TriangleOrientation::Counterclockwise {
-                        inflag = InFlag::PIn;
-                    } else if bHA == TriangleOrientation::Counterclockwise {
-                        inflag = InFlag::QIn;
-                    }
-                }
-                SegmentsIntersection::Segment {
-                    first_loc1,
-                    first_loc2,
-                    second_loc1,
-                    second_loc2,
-                } => {
-                    // Special case: edge1 & edge2 overlap and oppositely oriented.
-                    if dir_edge1.dot(&dir_edge2) < N::zero() {
-                        let loc1 =
-                            PolylinePointLocation::from_segment_point_location(a1, a2, first_loc1);
-                        let loc2 =
-                            PolylinePointLoca