Move elements to new module

src/falling_sand/element.rs

@@ -0,0 +1,18 @@
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum Element {
+    None,
+    Air,
+    Sand,
+    Water,
+}
+
+impl From<u32> for Element {
+    fn from(value: u32) -> Self {
+        match value {
+            x if x == Element::Air as u32 => Element::Air,
+            x if x == Element::Sand as u32 => Element::Sand,
+            x if x == Element::Water as u32 => Element::Water,
+            _ => Element::None,
+        }
+    }
+}

src/falling_sand/mod.rs

@@ -1,3 +1,4 @@
+mod element;
 mod rules;
 
 use bevy::{
@@ -17,7 +18,10 @@ use rand::Rng;
 
 use crate::util::DirtyRect;
 
-use self::rules::{to_rule_state, FallingSandRules};
+use self::{
+    element::Element,
+    rules::{to_rule_state, FallingSandRules},
+};
 
 pub struct FallingSandPlugin;
 
@@ -222,22 +226,3 @@ pub fn update_chunk_texture_system(
         chunk.dirty_rect.reset();
     }
 }
-
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum Element {
-    None,
-    Air,
-    Sand,
-    Water,
-}
-
-impl From<u32> for Element {
-    fn from(value: u32) -> Self {
-        match value {
-            x if x == Element::Air as u32 => Element::Air,
-            x if x == Element::Sand as u32 => Element::Sand,
-            x if x == Element::Water as u32 => Element::Water,
-            _ => Element::None,
-        }
-    }
-}