probably trying too hard

src/ship/items/inventory.rs

@@ -163,11 +163,35 @@ pub enum InventoryItemConsumeError {
     InvalidAmount,
 }
 
-pub struct ConsumedItem {
-    pub entity_ids: Vec<ItemEntityId>,
-    pub item: ItemDetail
+pub struct IndividualConsumedItem {
+    pub entity_ids: ItemEntityId,
+    pub item: ItemDetail,
 }
 
+pub struct StackedConsumedItem {
+    pub entity_ids: Vec<ItemEntityId>,
+    pub tool: Tool
+}
+
+pub enum ConsumedItem {
+    Individual(IndividualConsumedItem),
+    Stacked(StackedConsumedItem),
+}
+
+impl ConsumedItem {
+    pub fn entity_ids(&self) -> Vec<ItemEntityId> {
+        match self {
+            ConsumedItem::Individual(individual_consumed_item) => {
+                vec![individual_consumed_item.entity_id]
+            },
+            ConsumedItem::Stacked(stacked_consumed_item) => {
+                stacked_consumed_item.entity_ids
+            }
+        }
+    }
+}
+
+
 pub struct InventoryItemHandle<'a> {
     inventory: &'a mut CharacterInventory,
     slot: usize,
@@ -185,27 +209,27 @@ impl<'a> InventoryItemHandle<'a> {
     pub fn consume(self, amount: usize) -> Result<ConsumedItem, InventoryItemConsumeError> {
         enum RemoveMethod {
             EntireThing(ConsumedItem),
-            Partial(ItemDetail),
+            Partial(Tool),
         }
         
         let inventory_item = self.inventory.0.get(self.slot).ok_or(InventoryItemConsumeError::InconsistentState)?;
         let remove_method = match inventory_item {
             InventoryItem::Individual(individual_inventory_item) => {
-                RemoveMethod::EntireThing(ConsumedItem {
-                    entity_ids: vec![individual_inventory_item.entity_id],
+                RemoveMethod::EntireThing(ConsumedItem::Individual(IndividualConsumedItem {
+                    entity_ids: individual_inventory_item.entity_id,
                     item: individual_inventory_item.item.clone()
-                })
+                }))
             },
             InventoryItem::Stacked(stacked_inventory_item) => {
                 match stacked_inventory_item.count().cmp(&amount) {
                     Ordering::Equal => {
-                        RemoveMethod::EntireThing(ConsumedItem {
+                        RemoveMethod::EntireThing(ConsumedItem::Stacked(StackedConsumedItem {
                             entity_ids: stacked_inventory_item.entity_ids.clone(),
-                            item: ItemDetail::Tool(stacked_inventory_item.tool),
-                        })
+                            tool: stacked_inventory_item.tool,
+                        }))
                     },
                     Ordering::Greater => {
-                        RemoveMethod::Partial(ItemDetail::Tool(stacked_inventory_item.tool))
+                        RemoveMethod::Partial(stacked_inventory_item.tool)
                     },
                     Ordering::Less => {
                         return Err(InventoryItemConsumeError::InvalidAmount)
@@ -219,7 +243,7 @@ impl<'a> InventoryItemHandle<'a> {
                 self.inventory.0.remove(self.slot);
                 Ok(consumed_item)
             },
-            RemoveMethod::Partial(item_detail) => {
+            RemoveMethod::Partial(tool) => {
                 let entity_ids = self.inventory.0.get_mut(self.slot)
                     .and_then(|item| {
                         if let InventoryItem::Stacked(stacked_inventory_item) = item {
@@ -230,10 +254,10 @@ impl<'a> InventoryItemHandle<'a> {
                         }
                     })
                     .ok_or(InventoryItemConsumeError::InvalidAmount)?;
-                Ok(ConsumedItem {
+                Ok(ConsumedItem::Stacked(StackedConsumedItem {
                     entity_ids: entity_ids,
-                    item: item_detail,
-                })
+                    tool: tool,
+                }))
             }
         }
     } 

src/ship/items/manager.rs

@@ -501,7 +501,7 @@ impl ItemManager {
         let used_item = inventory.get_item_handle_by_id(item_id).ok_or(ItemManagerError::NoSuchItemId(item_id))?;
         let consumed_item = used_item.consume(amount)?;
 
-        for entity_id in consumed_item.entity_ids {
+        for entity_id in consumed_item.entity_ids() {
             entity_gateway.change_item_location(&entity_id,
                                                 ItemLocation::Consumed).await;
         }