refactor(engine): make cube vertex indices const variables

1 files changed, 82 insertions, 75 deletions

diff --git a/engine/src/mesh/cube.rs b/engine/src/mesh/cube.rs
index ca946bb..7cdf885 100644
--- a/engine/src/mesh/cube.rs
+++ b/engine/src/mesh/cube.rs
@@ -62,84 +62,10 @@ pub fn create(
     create_top(&creation_spec, &mut vertices, &vertex_builder_cb);
     create_bottom(&creation_spec, &mut vertices, &vertex_builder_cb);
 
-    let front = [
-        // 🮝
-        VertexIndex::FrontTopRight,
-        VertexIndex::FrontBottomRight,
-        VertexIndex::FrontTopLeft,
-        //
-        // 🮟
-        VertexIndex::FrontBottomRight,
-        VertexIndex::FrontBottomLeft,
-        VertexIndex::FrontTopLeft,
-    ];
-
-    let back = [
-        // 🮝
-        VertexIndex::BackTopRight,
-        VertexIndex::BackBottomRight,
-        VertexIndex::BackTopLeft,
-        //
-        // 🮟
-        VertexIndex::BackBottomRight,
-        VertexIndex::BackBottomLeft,
-        VertexIndex::BackTopLeft,
-    ];
-
-    let right = [
-        // 🮝
-        VertexIndex::RightBackTop,
-        VertexIndex::RightBackBottom,
-        VertexIndex::RightFrontTop,
-        //
-        // 🮟
-        VertexIndex::RightBackBottom,
-        VertexIndex::RightFrontBottom,
-        VertexIndex::RightFrontTop,
-    ];
-
-    let left = [
-        // 🮝
-        VertexIndex::LeftBackTop,
-        VertexIndex::LeftBackBottom,
-        VertexIndex::LeftFrontTop,
-        //
-        // 🮟
-        VertexIndex::LeftBackBottom,
-        VertexIndex::LeftFrontBottom,
-        VertexIndex::LeftFrontTop,
-    ];
-
-    let top = [
-        // 🮝
-        VertexIndex::TopBackRight,
-        VertexIndex::TopBackLeft,
-        VertexIndex::TopFrontRight,
-        //
-        // 🮟
-        VertexIndex::TopBackLeft,
-        VertexIndex::TopFrontLeft,
-        VertexIndex::TopFrontRight,
-    ];
-
-    let bottom = [
-        // 🮝
-        VertexIndex::BottomBackRight,
-        VertexIndex::BottomBackLeft,
-        VertexIndex::BottomFrontRight,
-        //
-        // 🮟
-        VertexIndex::BottomBackLeft,
-        VertexIndex::BottomFrontLeft,
-        VertexIndex::BottomFrontRight,
-    ];
-
-    let indices = [front, back, right, left, top, bottom];
-
     Mesh::new(
         vertices.map(Option::unwrap).to_vec(),
         Some(
-            indices
+            VERTEX_INDICES
                 .into_iter()
                 .flatten()
                 .map(|index| index as u32)
@@ -693,3 +619,84 @@ fn create_bottom(
         .build(),
     );
 }
+
+const VERTEX_INDICES_FRONT: [VertexIndex; 6] = [
+    // 🮝
+    VertexIndex::FrontTopRight,
+    VertexIndex::FrontBottomRight,
+    VertexIndex::FrontTopLeft,
+    //
+    // 🮟
+    VertexIndex::FrontBottomRight,
+    VertexIndex::FrontBottomLeft,
+    VertexIndex::FrontTopLeft,
+];
+
+const VERTEX_INDICES_BACK: [VertexIndex; 6] = [
+    // 🮝
+    VertexIndex::BackTopRight,
+    VertexIndex::BackBottomRight,
+    VertexIndex::BackTopLeft,
+    //
+    // 🮟
+    VertexIndex::BackBottomRight,
+    VertexIndex::BackBottomLeft,
+    VertexIndex::BackTopLeft,
+];
+
+const VERTEX_INDICES_RIGHT: [VertexIndex; 6] = [
+    // 🮝
+    VertexIndex::RightBackTop,
+    VertexIndex::RightBackBottom,
+    VertexIndex::RightFrontTop,
+    //
+    // 🮟
+    VertexIndex::RightBackBottom,
+    VertexIndex::RightFrontBottom,
+    VertexIndex::RightFrontTop,
+];
+
+const VERTEX_INDICES_LEFT: [VertexIndex; 6] = [
+    // 🮝
+    VertexIndex::LeftBackTop,
+    VertexIndex::LeftBackBottom,
+    VertexIndex::LeftFrontTop,
+    //
+    // 🮟
+    VertexIndex::LeftBackBottom,
+    VertexIndex::LeftFrontBottom,
+    VertexIndex::LeftFrontTop,
+];
+
+const VERTEX_INDICES_TOP: [VertexIndex; 6] = [
+    // 🮝
+    VertexIndex::TopBackRight,
+    VertexIndex::TopBackLeft,
+    VertexIndex::TopFrontRight,
+    //
+    // 🮟
+    VertexIndex::TopBackLeft,
+    VertexIndex::TopFrontLeft,
+    VertexIndex::TopFrontRight,
+];
+
+const VERTEX_INDICES_BOTTOM: [VertexIndex; 6] = [
+    // 🮝
+    VertexIndex::BottomBackRight,
+    VertexIndex::BottomBackLeft,
+    VertexIndex::BottomFrontRight,
+    //
+    // 🮟
+    VertexIndex::BottomBackLeft,
+    VertexIndex::BottomFrontLeft,
+    VertexIndex::BottomFrontRight,
+];
+
+const VERTEX_INDICES: [[VertexIndex; 6]; 6] = [
+    VERTEX_INDICES_FRONT,
+    VERTEX_INDICES_BACK,
+    VERTEX_INDICES_RIGHT,
+    VERTEX_INDICES_LEFT,
+    VERTEX_INDICES_TOP,
+    VERTEX_INDICES_BOTTOM,
+];