feat: Add shovel asset and inventory helper (#15)

src/features/inventory/components.rs

@@ -80,8 +80,8 @@ impl ItemType {
                 aseprite: asset_server.load("berry.aseprite"),
             },
             ItemType::Shovel => AseSlice {
-                name: "Berry".into(),
-                aseprite: asset_server.load("berry.aseprite"),
+                name: "Shovel".into(),
+                aseprite: asset_server.load("shovel.aseprite"),
             },
             ItemType::BerrySeed { name } => {
                 let seed_config = game_config.berry_seeds.iter().find(|s| s.name == *name);
@@ -114,12 +114,14 @@ pub struct Inventory {
 }
 
 impl Inventory {
-    pub fn has_item(&self, items_query: Query<&ItemStack>) -> bool {
-        self.items
-            .iter()
-            .map(|entity| items_query.get(*entity).ok())
-            .find(|option| option.is_some())
-            .is_some()
+    pub fn has_item_type(&self, items_query: &Query<&ItemStack>, item_type: ItemType) -> bool {
+        self.items.iter().any(|&entity| {
+            if let Ok(stack) = items_query.get(entity) {
+                stack.item_type == item_type
+            } else {
+                false
+            }
+        })
     }
 
     pub fn update_item_stack(