fixes and refactors

1 files changed, 4 insertions, 4 deletions

diff --git a/src/sim/cell/materials/powder.rs b/src/sim/cell/materials/powder.rs
index d2d1265..e08ea1f 100644
--- a/src/sim/cell/materials/powder.rs
+++ b/src/sim/cell/materials/powder.rs
@@ -1,10 +1,10 @@
-use crate::sim::cell_sim::sim::UpdateCtx;
+use crate::sim::cell_sim::sim::{PostUpdateAction, UpdateCtx};
 
 #[inline]
-pub fn sim_update(ctx: &mut UpdateCtx) {
-    ctx.candidates_swap(&[
+pub fn sim_update(ctx: &mut UpdateCtx) -> PostUpdateAction {
+    ctx.swap_or_settle(&[
         (0, 1),
         (-1 + 2 * ctx.seqno_parity as i32, 1),
         (1 - 2 * ctx.seqno_parity as i32, 1),
-    ]);
+    ])
 }