onPostUpdate method

@override void onPostUpdate(double dt)

Override to react after the update phase each frame.

Called after all registered listenOnPostUpdate listeners.

Implementation

@override
void onPostUpdate(double dt) {
  // Clear reusable structures
  _bodies.clear();
  _checkedPairs.clear();
  spatialGrid.clear();

  // Phase 1: Build spatial grid with movable entities
  _buildSpatialGrid();

  // Phase 2: Check collisions only for nearby pairs
  _resolveCollisions();
}