Minor demos changes.

examples3d/all_examples3.rs

@@ -10,7 +10,6 @@ use inflector::Inflector;
 use rapier_testbed3d::Testbed;
 use std::cmp::Ordering;
 
-mod add_remove3;
 mod collision_groups3;
 mod compound3;
 mod damping3;
@@ -20,6 +19,7 @@ mod debug_infinite_fall3;
 mod debug_triangle3;
 mod debug_trimesh3;
 mod domino3;
+mod fountain3;
 mod heightfield3;
 mod joints3;
 mod keva3;
@@ -67,7 +67,7 @@ pub fn main() {
         .to_camel_case();
 
     let mut builders: Vec<(_, fn(&mut Testbed))> = vec![
-        ("Add remove", add_remove3::init_world),
+        ("Fountain", fountain3::init_world),
         ("Primitives", primitives3::init_world),
         ("Collision groups", collision_groups3::init_world),
         ("Compound", compound3::init_world),

examples3d/fountain3.rs

@@ -70,8 +70,6 @@ pub fn init_world(testbed: &mut Testbed) {
                 graphics.remove_body_nodes(window, *handle);
             }
         }
-
-        println!("Num bodies: {}", physics.bodies.len());
     });
 
     /*

examples3d/heightfield3.rs

@@ -27,7 +27,7 @@ pub fn init_world(testbed: &mut Testbed) {
             // NOTE: make sure we use the sin/cos from simba to ensure
             // cross-platform determinism of the example when the
             // enhanced_determinism feature is enabled.
-            (<f32 as ComplexField>::sin(x) + <f32 as ComplexField>::cos(z))
+            <f32 as ComplexField>::sin(x) + <f32 as ComplexField>::cos(z)
         }
     });
 

examples3d/joints3.rs

@@ -25,14 +25,11 @@ fn create_prismatic_joints(
 
     for i in 0..num {
         let z = origin.z + (i + 1) as f32 * shift;
-        let density = 1.0;
         let rigid_body = RigidBodyBuilder::new_dynamic()
             .translation(origin.x, origin.y, z)
             .build();
         let curr_child = bodies.insert(rigid_body);
-        let collider = ColliderBuilder::cuboid(rad, rad, rad)
-            .density(density)
-            .build();
+        let collider = ColliderBuilder::cuboid(rad, rad, rad).build();
         colliders.insert(collider, curr_child, bodies);
 
         let axis = if i % 2 == 0 {
@@ -88,14 +85,11 @@ fn create_revolute_joints(
 
         let mut handles = [curr_parent; 4];
         for k in 0..4 {
-            let density = 1.0;
             let rigid_body = RigidBodyBuilder::new_dynamic()
                 .position(positions[k])
                 .build();
             handles[k] = bodies.insert(rigid_body);
-            let collider = ColliderBuilder::cuboid(rad, rad, rad)
-                .density(density)
-                .build();
+            let collider = ColliderBuilder::cuboid(rad, rad, rad).build();
             colliders.insert(collider, handles[k], bodies);
         }