Example to isolate memory leak issue

examples2d/all_examples2.rs

@@ -12,6 +12,7 @@ use std::cmp::Ordering;
 
 mod add_remove2;
 mod debug_box_ball2;
+mod debug_infinite_fall;
 mod heightfield2;
 mod joints2;
 mod platform2;
@@ -58,6 +59,7 @@ pub fn main() {
         ("Pyramid", pyramid2::init_world),
         ("Sensor", sensor2::init_world),
         ("(Debug) box ball", debug_box_ball2::init_world),
+        ("(Debug) infinite fall", debug_infinite_fall::init_world),
     ];
 
     // Lexicographic sort, with stress tests moved at the end of the list.

examples2d/debug_infinite_fall.rs

@@ -0,0 +1,33 @@
+use rapier2d::dynamics::{JointSet, RigidBodyBuilder, RigidBodySet};
+use rapier2d::geometry::{ColliderBuilder, ColliderSet};
+use rapier_testbed2d::Testbed;
+
+pub fn init_world(testbed: &mut Testbed) {
+    /*
+     * World
+     */
+    let mut bodies = RigidBodySet::new();
+    let mut colliders = ColliderSet::new();
+    let joints = JointSet::new();
+
+    let rad = 1.0;
+    // Build the dynamic box rigid body.
+    let rigid_body = RigidBodyBuilder::new_dynamic()
+        .translation(0.0, 3.0 * rad)
+        .can_sleep(false)
+        .build();
+    let handle = bodies.insert(rigid_body);
+    let collider = ColliderBuilder::ball(rad).build();
+    colliders.insert(collider, handle, &mut bodies);
+
+    /*
+     * Set up the testbed.
+     */
+    testbed.set_world(bodies, colliders, joints);
+    //    testbed.look_at(Point2::new(10.0, 10.0, 10.0), Point2::origin());
+}
+
+fn main() {
+    let testbed = Testbed::from_builders(0, vec![("Boxes", init_world)]);
+    testbed.run()
+}