Hardened loot table handling

- Rename LootSpec::None to LootSpec::Nothing to not confuse with Option
- Warn on invalid item paths in loot tables

assets/common/loot_tables/dungeon/tier-0/enemy.ron

@@ -4,5 +4,5 @@
     // Food
     (1.0, LootTable("common.loot_tables.food.wild_ingredients")),
     // Nothing
-    (2.0, None),
+    (2.0, Nothing),
 ]

assets/common/loot_tables/dungeon/tier-1/enemy.ron

@@ -4,7 +4,7 @@
     // Food
     (1.0, LootTable("common.loot_tables.food.wild_ingredients")),
     // Nothing
-    (2.0, None),
+    (2.0, Nothing),
     // Placeholder Drop Location
     (1.0, Item("common.items.crafting_ing.sticky_thread")),
 ]

assets/common/loot_tables/dungeon/tier-2/enemy.ron

@@ -4,5 +4,5 @@
     // Food
     (1.0, LootTable("common.loot_tables.food.wild_ingredients")),
     // Nothing
-    (2.0, None),
+    (2.0, Nothing),
 ]

assets/common/loot_tables/dungeon/tier-3/enemy.ron

@@ -4,5 +4,5 @@
     // Food
     (1.0, LootTable("common.loot_tables.food.prepared")),
     // Nothing
-    (2.0, None),
+    (2.0, Nothing),
 ]

assets/common/loot_tables/dungeon/tier-4/enemy.ron

@@ -4,5 +4,5 @@
     // Food
     (1.0, LootTable("common.loot_tables.food.prepared")),
     // Nothing
-    (2.0, None),
+    (2.0, Nothing),
 ]

assets/common/loot_tables/dungeon/tier-5/minion.ron

@@ -2,7 +2,7 @@
     // Currency
     (50.0, ItemQuantity("common.items.utility.coins", 50, 100)),
     // Nothing
-    (50.0, None),
+    (50.0, Nothing),
     // Special
     (1.0, Item("common.items.food.spore_corruption")),
 ]

assets/common/loot_tables/nothing.ron

@@ -1,4 +1,4 @@
 [
     // No loot is dropped
-    (1.0, None),
+    (1.0, Nothing),
 ]

common/src/comp/inventory/trade_pricing.rs

@@ -113,7 +113,7 @@ impl From<Vec<(f32, LootSpec<String>)>> for ProbabilityFile {
                             .collect::<Vec<_>>()
                             .into_iter()
                     },
-                    LootSpec::None => Vec::new().into_iter(),
+                    LootSpec::Nothing => Vec::new().into_iter(),
                 })
                 .collect(),
         }

common/src/lottery.rs

@@ -85,37 +85,47 @@ pub enum LootSpec<T: AsRef<str>> {
     /// Loot table
     LootTable(T),
     /// No loot given
-    None,
+    Nothing,
 }
 
 impl<T: AsRef<str>> LootSpec<T> {
     pub fn to_item(&self) -> Option<Item> {
         match self {
-            Self::Item(item) => Item::new_from_asset(item.as_ref()).ok(),
+            Self::Item(item) => Item::new_from_asset(item.as_ref()).map_or_else(
+                |e| {
+                    warn!(?e, "Invalid item path");
+                    None
+                },
+                |i| Some(i),
+            ),
             Self::ItemQuantity(item, lower, upper) => {
                 let range = *lower..=*upper;
                 let quantity = thread_rng().gen_range(range);
-                if let Ok(mut item) = Item::new_from_asset(item.as_ref()) {
-                    // TODO: Handle multiple of an item that is unstackable
-                    if item.set_amount(quantity).is_err() {
-                        warn!("Tried to set quantity on non stackable item");
-                    }
-                    Some(item)
-                } else {
-                    None
+                match Item::new_from_asset(item.as_ref()) {
+                    Ok(mut item) => {
+                        // TODO: Handle multiple of an item that is unstackable
+                        if item.set_amount(quantity).is_err() {
+                            warn!("Tried to set quantity on non stackable item");
+                        }
+                        Some(item)
+                    },
+                    Err(e) => {
+                        warn!(?e, "Invalid item path");
+                        None
+                    },
                 }
             },
             Self::LootTable(table) => Lottery::<LootSpec<String>>::load_expect(table.as_ref())
                 .read()
                 .choose()
                 .to_item(),
-            Self::None => None,
+            Self::Nothing => None,
         }
     }
 }
 
 impl Default for LootSpec<String> {
-    fn default() -> Self { Self::None }
+    fn default() -> Self { Self::Nothing }
 }
 
 #[cfg(test)]
@@ -148,7 +158,7 @@ pub mod tests {
                 let loot_table = Lottery::<LootSpec<String>>::load_expect_cloned(loot_table);
                 validate_table_contents(loot_table);
             },
-            LootSpec::None => {},
+            LootSpec::Nothing => {},
         }
     }