feat(engine): add fns for changing mesh data

2 files changed, 19 insertions, 0 deletions

diff --git a/engine/src/mesh.rs b/engine/src/mesh.rs
index a223f60..9aa1f80 100644
--- a/engine/src/mesh.rs
+++ b/engine/src/mesh.rs
@@ -26,6 +26,11 @@ impl Mesh
         &self.vertex_buf
     }
 
+    pub fn vertex_buf_mut(&mut self) -> &mut vertex_buffer::VertexBuffer
+    {
+        &mut self.vertex_buf
+    }
+
     #[must_use]
     pub fn indices(&self) -> Option<&[u32]>
     {
@@ -38,6 +43,15 @@ impl Mesh
         self.indices.as_deref_mut()
     }
 
+    pub fn set_indices(&mut self, indices: impl IntoIterator<Item = u32>)
+    {
+        let curr_indices = self.indices.get_or_insert_with(|| Vec::new());
+
+        curr_indices.clear();
+
+        curr_indices.extend(indices.into_iter());
+    }
+
     /// Finds the vertex positions that are furthest in every 3D direction. Keep in mind
     /// that this can be quite time-expensive if the mesh has many vertices.
     pub fn find_furthest_vertex_positions(&self) -> DirectionPositions
diff --git a/engine/src/mesh/vertex_buffer.rs b/engine/src/mesh/vertex_buffer.rs
index 3e3c467..9d77270 100644
--- a/engine/src/mesh/vertex_buffer.rs
+++ b/engine/src/mesh/vertex_buffer.rs
@@ -163,6 +163,11 @@ impl VertexBuffer
         &self.buf
     }
 
+    pub fn clear(&mut self)
+    {
+        self.buf.clear();
+    }
+
     pub fn iter<VertexAttr: VertexAttrValue>(
         &self,
         vertex_attr_name: &str,