depth buffer compiles and switched to 3d vertices

src/sprite.rs

@@ -16,6 +16,7 @@ pub struct Sprite {
 
 }
 
+/// Container class which implements drawable.
 impl Sprite {
 
     pub fn new(position: (f32, f32), size: (f32, f32)) -> Sprite {
@@ -54,6 +55,7 @@ impl Sprite {
         }
     }
 
+    ///
     pub fn new_with_texture(position: (f32, f32), size: (f32, f32), texture_handle: Arc<CanvasTextureHandle>) -> Sprite {
 
         let fsize = (size.0 as f32, size.1 as f32);
@@ -88,6 +90,7 @@ impl Sprite {
 }
 
 impl Drawable for Sprite {
+
     fn get_vertices(&self) -> Vec<(f32,f32)> {
         self.vertices.to_vec()
     }