sprite: Allow passing `Sprite` directly

Allow passing either an ImageHandle or a `Sprite` to Sprite::new().

src/components/sprite.rs

@@ -5,7 +5,9 @@ pub struct Sprite {
 }
 
 impl Sprite {
-    pub fn new(image_handle: resources::ImageHandle) -> Self {
-        Sprite { image_handle }
+    pub fn new<S: Into<resources::ImageHandle>>(handle: S) -> Self {
+        Sprite {
+            image_handle: handle.into(),
+        }
     }
 }

src/entities/player.rs

@@ -21,6 +21,6 @@ pub fn create_player(
         components::Position::new(spawn.x, spawn.y),
         components::Movable::new(),
         colliders::Collider::new_player(50.0),
-        components::Sprite::new(sprites::Sprite::Player.into()),
+        components::Sprite::new(sprites::Sprite::Player),
     ))
 }