diff -r 901751d3cd80 -r febccab419b1 rust/hwphysics/src/physics.rs
--- a/rust/hwphysics/src/physics.rs	Tue Jun 04 23:19:18 2019 +0300
+++ b/rust/hwphysics/src/physics.rs	Tue Jun 04 22:34:42 2019 +0200
@@ -1,137 +1,137 @@
-use crate::common::{GearData, GearDataProcessor, GearId};
-use fpnum::*;
-use integral_geometry::{GridIndex, Point, Size};
-
-#[derive(PartialEq, Eq, Clone, Copy, Debug)]
-pub struct PhysicsData {
-    pub position: FPPoint,
-    pub velocity: FPPoint,
-}
-
-impl GearData for PhysicsData {}
-
-impl PhysicsData {
-    pub fn new(position: FPPoint, velocity: FPPoint) -> Self {
-        Self { position, velocity }
-    }
-}
-
-pub struct DynamicPhysicsCollection {
-    gear_ids: Vec<GearId>,
-    positions: Vec<FPPoint>,
-    velocities: Vec<FPPoint>,
-}
-
-impl DynamicPhysicsCollection {
-    fn new() -> Self {
-        Self {
-            gear_ids: Vec::new(),
-            positions: Vec::new(),
-            velocities: Vec::new(),
-        }
-    }
-
-    fn len(&self) -> usize {
-        self.gear_ids.len()
-    }
-
-    fn push(&mut self, id: GearId, physics: PhysicsData) {
-        self.gear_ids.push(id);
-        self.positions.push(physics.position);
-        self.velocities.push(physics.velocity);
-    }
-
-    fn iter_pos_update(&mut self) -> impl Iterator<Item = (GearId, (&mut FPPoint, &FPPoint))> {
-        self.gear_ids
-            .iter()
-            .cloned()
-            .zip(self.positions.iter_mut().zip(self.velocities.iter()))
-    }
-}
-
-pub struct StaticPhysicsCollection {
-    gear_ids: Vec<GearId>,
-    positions: Vec<FPPoint>,
-}
-
-impl StaticPhysicsCollection {
-    fn new() -> Self {
-        Self {
-            gear_ids: Vec::new(),
-            positions: Vec::new(),
-        }
-    }
-
-    fn push(&mut self, gear_id: GearId, physics: PhysicsData) {
-        self.gear_ids.push(gear_id);
-        self.positions.push(physics.position);
-    }
-}
-
-pub struct PhysicsProcessor {
-    dynamic_physics: DynamicPhysicsCollection,
-    static_physics: StaticPhysicsCollection,
-
-    physics_cleanup: Vec<GearId>,
-    position_updates: PositionUpdates,
-}
-
-pub struct PositionUpdates {
-    pub gear_ids: Vec<GearId>,
-    pub positions: Vec<FPPoint>,
-}
-
-impl PositionUpdates {
-    pub fn new(capacity: usize) -> Self {
-        Self {
-            gear_ids: Vec::with_capacity(capacity),
-            positions: Vec::with_capacity(capacity),
-        }
-    }
-
-    pub fn push(&mut self, gear_id: GearId, position: &FPPoint) {
-        self.gear_ids.push(gear_id);
-        self.positions.push(*position);
-    }
-}
-
-impl PhysicsProcessor {
-    pub fn new() -> Self {
-        PhysicsProcessor {
-            dynamic_physics: DynamicPhysicsCollection::new(),
-            static_physics: StaticPhysicsCollection::new(),
-            physics_cleanup: Vec::new(),
-            position_updates: PositionUpdates::new(0),
-        }
-    }
-
-    pub fn process(&mut self, time_step: FPNum) -> &PositionUpdates {
-        for (gear_id, (pos, vel)) in self.dynamic_physics.iter_pos_update() {
-            *pos += *vel * time_step;
-            if !vel.is_zero() {
-                self.position_updates.push(gear_id, pos)
-            } else {
-                self.physics_cleanup.push(gear_id)
-            }
-        }
-        &self.position_updates
-    }
-
-    pub fn push(&mut self, gear_id: GearId, physics_data: PhysicsData) {
-        if physics_data.velocity.is_zero() {
-            self.static_physics.push(gear_id, physics_data);
-        } else {
-            self.dynamic_physics.push(gear_id, physics_data);
-        }
-    }
-}
-
-impl GearDataProcessor<PhysicsData> for PhysicsProcessor {
-    fn add(&mut self, gear_id: GearId, gear_data: PhysicsData) {
-        if gear_data.velocity.is_zero() {
-            self.static_physics.push(gear_id, gear_data);
-        } else {
-            self.dynamic_physics.push(gear_id, gear_data);
-        }
-    }
-}
+use crate::common::{GearData, GearDataProcessor, GearId};
+use fpnum::*;
+use integral_geometry::{GridIndex, Point, Size};
+
+#[derive(PartialEq, Eq, Clone, Copy, Debug)]
+pub struct PhysicsData {
+    pub position: FPPoint,
+    pub velocity: FPPoint,
+}
+
+impl GearData for PhysicsData {}
+
+impl PhysicsData {
+    pub fn new(position: FPPoint, velocity: FPPoint) -> Self {
+        Self { position, velocity }
+    }
+}
+
+pub struct DynamicPhysicsCollection {
+    gear_ids: Vec<GearId>,
+    positions: Vec<FPPoint>,
+    velocities: Vec<FPPoint>,
+}
+
+impl DynamicPhysicsCollection {
+    fn new() -> Self {
+        Self {
+            gear_ids: Vec::new(),
+            positions: Vec::new(),
+            velocities: Vec::new(),
+        }
+    }
+
+    fn len(&self) -> usize {
+        self.gear_ids.len()
+    }
+
+    fn push(&mut self, id: GearId, physics: PhysicsData) {
+        self.gear_ids.push(id);
+        self.positions.push(physics.position);
+        self.velocities.push(physics.velocity);
+    }
+
+    fn iter_pos_update(&mut self) -> impl Iterator<Item = (GearId, (&mut FPPoint, &FPPoint))> {
+        self.gear_ids
+            .iter()
+            .cloned()
+            .zip(self.positions.iter_mut().zip(self.velocities.iter()))
+    }
+}
+
+pub struct StaticPhysicsCollection {
+    gear_ids: Vec<GearId>,
+    positions: Vec<FPPoint>,
+}
+
+impl StaticPhysicsCollection {
+    fn new() -> Self {
+        Self {
+            gear_ids: Vec::new(),
+            positions: Vec::new(),
+        }
+    }
+
+    fn push(&mut self, gear_id: GearId, physics: PhysicsData) {
+        self.gear_ids.push(gear_id);
+        self.positions.push(physics.position);
+    }
+}
+
+pub struct PhysicsProcessor {
+    dynamic_physics: DynamicPhysicsCollection,
+    static_physics: StaticPhysicsCollection,
+
+    physics_cleanup: Vec<GearId>,
+    position_updates: PositionUpdates,
+}
+
+pub struct PositionUpdates {
+    pub gear_ids: Vec<GearId>,
+    pub positions: Vec<FPPoint>,
+}
+
+impl PositionUpdates {
+    pub fn new(capacity: usize) -> Self {
+        Self {
+            gear_ids: Vec::with_capacity(capacity),
+            positions: Vec::with_capacity(capacity),
+        }
+    }
+
+    pub fn push(&mut self, gear_id: GearId, position: &FPPoint) {
+        self.gear_ids.push(gear_id);
+        self.positions.push(*position);
+    }
+}
+
+impl PhysicsProcessor {
+    pub fn new() -> Self {
+        PhysicsProcessor {
+            dynamic_physics: DynamicPhysicsCollection::new(),
+            static_physics: StaticPhysicsCollection::new(),
+            physics_cleanup: Vec::new(),
+            position_updates: PositionUpdates::new(0),
+        }
+    }
+
+    pub fn process(&mut self, time_step: FPNum) -> &PositionUpdates {
+        for (gear_id, (pos, vel)) in self.dynamic_physics.iter_pos_update() {
+            *pos += *vel * time_step;
+            if !vel.is_zero() {
+                self.position_updates.push(gear_id, pos)
+            } else {
+                self.physics_cleanup.push(gear_id)
+            }
+        }
+        &self.position_updates
+    }
+
+    pub fn push(&mut self, gear_id: GearId, physics_data: PhysicsData) {
+        if physics_data.velocity.is_zero() {
+            self.static_physics.push(gear_id, physics_data);
+        } else {
+            self.dynamic_physics.push(gear_id, physics_data);
+        }
+    }
+}
+
+impl GearDataProcessor<PhysicsData> for PhysicsProcessor {
+    fn add(&mut self, gear_id: GearId, gear_data: PhysicsData) {
+        if gear_data.velocity.is_zero() {
+            self.static_physics.push(gear_id, gear_data);
+        } else {
+            self.dynamic_physics.push(gear_id, gear_data);
+        }
+    }
+}