1 files changed, 0 insertions, 24 deletions
diff --git a/src/sim/cell/materials/gas.rs b/src/sim/cell/materials/gas.rs
deleted file mode 100644
index 229d0e9..0000000
--- a/src/sim/cell/materials/gas.rs
+++ /dev/null
@@ -1,24 +0,0 @@
-use rand::RngExt;
-
-use crate::sim::cell_manager::sim::{PostUpdateAction, UpdateCtx};
-
-#[inline]
-pub fn sim_update(ctx: &mut UpdateCtx) -> PostUpdateAction {
-    // only allow upward movement some of the time to limit movement speed
-    if ctx.rng.random_range(0.0..1.0) > 0.8
-        && ctx.swap_or_settle(&[(0, -1)]) == PostUpdateAction::None
-    {
-        return PostUpdateAction::None;
-    }
-    // same for each horizontal direction
-    if ctx.rng.random_range(0.0..1.0) > 0.8
-        && ctx.swap_or_settle(&[(1 - ctx.seqno_parity as i32 * 2, 0)]) == PostUpdateAction::None
-    {
-        return PostUpdateAction::None;
-    }
-    if ctx.rng.random_range(0.0..1.0) > 0.8 {
-        return ctx.swap_or_settle(&[(-1 + ctx.seqno_parity as i32 * 2, 0)]);
-    }
-
-    PostUpdateAction::Apply
-}