Fix shape modification not updating graphics in testbed (#708)

* Fix shape modification not updating graphics in testbed

* Add update collider to Testbed

* chore: lint shape_modifications3

* chore: simplify GraphicsManager::remove_collider_nodes

---------

Co-authored-by: Sébastien Crozet <sebcrozet@dimforge.com>

src_testbed/graphics.rs

@@ -83,13 +83,16 @@ impl GraphicsManager {
     ) {
         let body = body.unwrap_or(RigidBodyHandle::invalid());
         if let Some(sns) = self.b2sn.get_mut(&body) {
-            for sn in sns.iter_mut() {
+            sns.retain(|sn| {
                 if let Some(sn_c) = sn.collider {
                     if sn_c == collider {
                         commands.entity(sn.entity).despawn();
+                        return false;
                     }
                 }
-            }
+
+                true
+            });
         }
     }
 

src_testbed/testbed.rs

@@ -492,13 +492,6 @@ impl TestbedGraphics<'_, '_, '_, '_, '_, '_> {
         )
     }
 
-    pub fn remove_collider(&mut self, handle: ColliderHandle, colliders: &ColliderSet) {
-        if let Some(parent_handle) = colliders.get(handle).map(|c| c.parent()) {
-            self.graphics
-                .remove_collider_nodes(&mut *self.commands, parent_handle, handle)
-        }
-    }
-
     pub fn remove_body(&mut self, handle: RigidBodyHandle) {
         self.graphics.remove_body_nodes(&mut *self.commands, handle)
     }
@@ -513,6 +506,18 @@ impl TestbedGraphics<'_, '_, '_, '_, '_, '_> {
         )
     }
 
+    pub fn remove_collider(&mut self, handle: ColliderHandle, colliders: &ColliderSet) {
+        if let Some(parent_handle) = colliders.get(handle).map(|c| c.parent()) {
+            self.graphics
+                .remove_collider_nodes(&mut *self.commands, parent_handle, handle)
+        }
+    }
+
+    pub fn update_collider(&mut self, handle: ColliderHandle, colliders: &ColliderSet) {
+        self.remove_collider(handle, colliders);
+        self.add_collider(handle, colliders);
+    }
+
     pub fn keys(&self) -> &ButtonInput<KeyCode> {
         self.keys
     }