Add multiloot

CHANGELOG.md

@@ -42,6 +42,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - NPCs will now tell you about nearby towns and how to visit them
 - NPCs will migrate to new towns if they are dissatisfied with their current town
 - Female humanoids now have a greeting sound effect
+- Loot that drops multiple items is now distributed fairly between damage contributors.
 
 ### Changed
 

assets/common/entity/world/world_bosses/gigas_frost.ron

@@ -3,7 +3,7 @@
     name: Name("Frost Gigas"),
     body: RandomWith("gigas_frost"),
     alignment: Alignment(Enemy),
-    loot: LootTable("common.loot_tables.world.world_bosses.gigas_frost.boss"),
+    loot: MultiDrop(LootTable("common.loot_tables.world.world_bosses.gigas_frost.boss"), 3, 4),
     inventory: (
         loadout: FromBody,
     ),

assets/common/loot_tables/calendar/christmas/boss.ron

@@ -1,5 +1,5 @@
 [
-    (4.0, ItemQuantity("common.items.crafting_ing.animal_misc.icy_fang", 1, 20)),
+    (4.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.icy_fang"), 1, 20)),
     (2.0, Item("common.items.armor.misc.head.boreal_warhelm")),
     (1.0, Item("common.items.lantern.polaris")),
 ]

assets/common/loot_tables/calendar/christmas/yeti.ron

@@ -1,4 +1,4 @@
 [
-    (3.0, ItemQuantity("common.items.food.blue_cheese", 1, 15)),
+    (3.0, MultiDrop(Item("common.items.food.blue_cheese"), 1, 15)),
     (1.0, Item("common.items.calendar.christmas.armor.misc.head.woolly_wintercap")),
 ]

assets/common/loot_tables/consumable/good.ron

@@ -1,14 +1,14 @@
 [
     // Fireworks
-    (1.0, ItemQuantity("common.items.utility.firework_blue", 8, 10)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_blue"), 8, 10)),
-    (1.0, ItemQuantity("common.items.utility.firework_green", 8, 10)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_green"), 8, 10)),
-    (1.0, ItemQuantity("common.items.utility.firework_purple", 8, 10)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_purple"), 8, 10)),
-    (1.0, ItemQuantity("common.items.utility.firework_red", 8, 10)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_red"), 8, 10)),
-    (1.0, ItemQuantity("common.items.utility.firework_white", 8, 10)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_white"), 8, 10)),
-    (1.0, ItemQuantity("common.items.utility.firework_yellow", 8, 10)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_yellow"), 8, 10)),
     // Potions
-    (10.0, ItemQuantity("common.items.consumable.potion_big", 2, 5)),
+    (10.0, MultiDrop(Item("common.items.consumable.potion_big"), 2, 5)),
     // Misc
-    (5.0, ItemQuantity("common.items.utility.collar", 2, 3)),
+    (5.0, MultiDrop(Item("common.items.utility.collar"), 2, 3)),
-    (5.0, ItemQuantity("common.items.utility.bomb", 8, 10)),
+    (5.0, MultiDrop(Item("common.items.utility.bomb"), 8, 10)),
 ]

assets/common/loot_tables/consumable/moderate.ron

@@ -1,14 +1,14 @@
 [
     // Fireworks
-    (1.0, ItemQuantity("common.items.utility.firework_blue", 3, 5)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_blue"), 3, 5)),
-    (1.0, ItemQuantity("common.items.utility.firework_green", 3, 5)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_green"), 3, 5)),
-    (1.0, ItemQuantity("common.items.utility.firework_purple", 3, 5)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_purple"), 3, 5)),
-    (1.0, ItemQuantity("common.items.utility.firework_red", 3, 5)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_red"), 3, 5)),
-    (1.0, ItemQuantity("common.items.utility.firework_white", 3, 5)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_white"), 3, 5)),
-    (1.0, ItemQuantity("common.items.utility.firework_yellow", 3, 5)),
+    (1.0, MultiDrop(Item("common.items.utility.firework_yellow"), 3, 5)),
     // Potions
-    (10.0, ItemQuantity("common.items.consumable.potion_med", 2, 5)),
+    (10.0, MultiDrop(Item("common.items.consumable.potion_med"), 2, 5)),
     // Misc
-    (5.0, ItemQuantity("common.items.utility.collar", 1, 2)),
+    (5.0, MultiDrop(Item("common.items.utility.collar"), 1, 2)),
-    (5.0, ItemQuantity("common.items.utility.bomb", 3, 5)),
+    (5.0, MultiDrop(Item("common.items.utility.bomb"), 3, 5)),
 ]

assets/common/loot_tables/consumable/poor.ron

@@ -7,7 +7,7 @@
     (1.0, Item("common.items.utility.firework_white")),
     (1.0, Item("common.items.utility.firework_yellow")),
     // Potions
-    (10.0, ItemQuantity("common.items.consumable.potion_minor", 2, 5)),
+    (10.0, MultiDrop(Item("common.items.consumable.potion_minor"), 2, 5)),
     // Misc
     (5.0, Item("common.items.utility.collar")),
     (5.0, Item("common.items.utility.bomb")),

assets/common/loot_tables/creature/arthropod/antlion.ron

@@ -1,4 +1,4 @@
 [
-    (1.5, ItemQuantity("common.items.crafting_ing.hide.carapace", 2, 5)),
+    (1.5, MultiDrop(Item("common.items.crafting_ing.hide.carapace"), 2, 5)),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.strong_pincer", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.strong_pincer"), 1, 2)),
 ]

assets/common/loot_tables/creature/arthropod/black_widow.ron

@@ -1,5 +1,5 @@
 [
-    (2.0, ItemQuantity("common.items.crafting_ing.sticky_thread", 2, 5)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.sticky_thread"), 2, 5)),
     (1.0, Item("common.items.crafting_ing.animal_misc.venom_sac")),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.strong_pincer", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.strong_pincer"), 1, 2)),
 ]

assets/common/loot_tables/creature/arthropod/carapace.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.carapace", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.carapace"), 1, 3)),
     (1.0, Item("common.items.crafting_ing.animal_misc.strong_pincer")),
 ]

assets/common/loot_tables/creature/arthropod/leaf.ron

@@ -1,4 +1,4 @@
 [
-    (2.0, ItemQuantity("common.items.flowers.plant_fiber", 1, 3)),
+    (2.0, MultiDrop(Item("common.items.flowers.plant_fiber"), 1, 3)),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.viscous_ooze", 1, 1)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.viscous_ooze"), 1, 1)),
 ]

assets/common/loot_tables/creature/arthropod/leaf_beetle.ron

@@ -1,5 +1,5 @@
 [
-    (1.0, ItemQuantity("common.items.flowers.plant_fiber", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.flowers.plant_fiber"), 1, 3)),
     (1.0, Item("common.items.crafting_ing.animal_misc.strong_pincer")),
-    (0.5, ItemQuantity("common.items.crafting_ing.animal_misc.viscous_ooze", 1, 1)),
+    (0.5, MultiDrop(Item("common.items.crafting_ing.animal_misc.viscous_ooze"), 1, 1)),
 ]

assets/common/loot_tables/creature/arthropod/ooze.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.sticky_thread", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.sticky_thread"), 1, 3)),
-    (0.5, ItemQuantity("common.items.crafting_ing.animal_misc.viscous_ooze", 1, 1)),
+    (0.5, MultiDrop(Item("common.items.crafting_ing.animal_misc.viscous_ooze"), 1, 1)),
 ]

assets/common/loot_tables/creature/arthropod/tarantula.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.sticky_thread", 2, 5)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.sticky_thread"), 2, 5)),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.strong_pincer", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.strong_pincer"), 1, 2)),
 ]

assets/common/loot_tables/creature/arthropod/venom.ron

@@ -1,5 +1,5 @@
 [
-    (2.0, ItemQuantity("common.items.crafting_ing.sticky_thread", 1, 3)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.sticky_thread"), 1, 3)),
     (1.0, Item("common.items.crafting_ing.animal_misc.venom_sac")),
     (1.0, Item("common.items.crafting_ing.animal_misc.strong_pincer")),
 ]

assets/common/loot_tables/creature/arthropod/web.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.sticky_thread", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.sticky_thread"), 1, 3)),
     (1.0, Item("common.items.crafting_ing.animal_misc.strong_pincer")),
 ]

assets/common/loot_tables/creature/biped_large/tursus.ron

@@ -1,4 +1,4 @@
 [
     (1.0, Item("common.items.crafting_ing.hide.rugged_hide")),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.long_tusk", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.long_tusk"), 1, 2)),
 ]

assets/common/loot_tables/creature/bird_large/cockatrice.ron

@@ -1,6 +1,6 @@
 [
-    (1.0, ItemQuantity("common.items.food.meat.bird_large_raw", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.food.meat.bird_large_raw"), 1, 2)),
-    (1.0, ItemQuantity("common.items.food.meat.beast_large_raw", 2, 2)),
+    (1.0, MultiDrop(Item("common.items.food.meat.beast_large_raw"), 2, 2)),
-    (2.0, ItemQuantity("common.items.crafting_ing.animal_misc.elegant_crest", 1, 3)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.elegant_crest"), 1, 3)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.scales", 2, 6)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.scales"), 2, 6)),
 ]

assets/common/loot_tables/creature/bird_large/roc.ron

@@ -1,5 +1,5 @@
 [
-    (1.0, ItemQuantity("common.items.food.meat.bird_large_raw", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.food.meat.bird_large_raw"), 1, 2)),
-    (1.0, ItemQuantity("common.items.food.meat.beast_large_raw", 2, 2)),
+    (1.0, MultiDrop(Item("common.items.food.meat.beast_large_raw"), 2, 2)),
-    (2.0, ItemQuantity("common.items.crafting_ing.animal_misc.elegant_crest", 1, 3)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.elegant_crest"), 1, 3)),
 ]

assets/common/loot_tables/creature/bird_large/wyvern.ron

@@ -1,6 +1,6 @@
 [
-    (1.0, ItemQuantity("common.items.food.meat.bird_large_raw", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.food.meat.bird_large_raw"), 1, 2)),
-    (1.0, ItemQuantity("common.items.food.meat.beast_large_raw", 2, 2)),
+    (1.0, MultiDrop(Item("common.items.food.meat.beast_large_raw"), 2, 2)),
-    (2.0, ItemQuantity("common.items.crafting_ing.animal_misc.elegant_crest", 1, 3)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.elegant_crest"), 1, 3)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.scales", 2, 6)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.scales"), 2, 6)),
 ]

assets/common/loot_tables/creature/quad_medium/highland.ron

@@ -1,5 +1,5 @@
 [
     (1.0, Item("common.items.food.meat.beast_large_raw")),
     (1.0, Item("common.items.crafting_ing.hide.animal_hide")),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.fur", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.fur"), 1, 2)),
 ]

assets/common/loot_tables/creature/quad_medium/ice.ron

@@ -1,4 +1,4 @@
 [
     (1.0, Item("common.items.crafting_ing.hide.animal_hide")),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.icy_fang", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.icy_fang"), 1, 2)),
 ]

assets/common/loot_tables/creature/quad_medium/mammoth.ron

@@ -1,4 +1,4 @@
 [
-    (2.0, ItemQuantity("common.items.crafting_ing.hide.rugged_hide", 1, 2)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.hide.rugged_hide"), 1, 2)),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.long_tusk", 2, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.long_tusk"), 2, 2)),
 ]

assets/common/loot_tables/creature/quad_medium/ngoubou.ron

@@ -1,5 +1,5 @@
 [
     (2.0, Item("common.items.crafting_ing.hide.rugged_hide")),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.large_horn", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.large_horn"), 1, 2)),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.long_tusk", 2, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.long_tusk"), 2, 2)),
 ]

assets/common/loot_tables/creature/quad_medium/roshwalr.ron

@@ -1,5 +1,5 @@
 [
-    (2.0, ItemQuantity("common.items.crafting_ing.hide.rugged_hide", 1, 3)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.hide.rugged_hide"), 1, 3)),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.icy_fang", 2, 4)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.icy_fang"), 2, 4)),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.long_tusk", 2, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.long_tusk"), 2, 2)),
 ]

assets/common/loot_tables/creature/quad_medium/wool.ron

@@ -2,5 +2,5 @@
     (1.5, Item("common.items.food.meat.beast_small_raw")),
     (0.5, Item("common.items.food.meat.beast_large_raw")),
     (1.0, Item("common.items.crafting_ing.hide.animal_hide")),
-    (5.0, ItemQuantity("common.items.crafting_ing.cloth.wool", 2, 5)),
+    (5.0, MultiDrop(Item("common.items.crafting_ing.cloth.wool"), 2, 5)),
 ]

assets/common/loot_tables/creature/quad_small/fur.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.fur", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.fur"), 1, 3)),
     (0.25, LootTable("common.loot_tables.creature.quad_small.generic")),
 ]

assets/common/loot_tables/creature/quad_small/generic.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.animal_hide", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.animal_hide"), 1, 2)),
     (0.25, Item("common.items.food.meat.beast_small_raw")),
 ]

assets/common/loot_tables/creature/quad_small/truffler.ron

@@ -1,4 +1,4 @@
 [
-    (9.0, ItemQuantity("common.items.food.mushroom", 2, 4)),
+    (9.0, MultiDrop(Item("common.items.food.mushroom"), 2, 4)),
     (1.0, Item("common.items.crafting_ing.animal_misc.long_tusk")),
 ]

assets/common/loot_tables/creature/quad_small/wool.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.wool", 2, 5)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.wool"), 2, 5)),
     (0.25, Item("common.items.food.meat.beast_small_raw")),
 ]

assets/common/loot_tables/creature/theropod/axebeak.ron

@@ -1,5 +1,5 @@
 [
-    (4.0, ItemQuantity("common.items.crafting_ing.animal_misc.elegant_crest", 3, 6)),
+    (4.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.elegant_crest"), 3, 6)),
     (1.0, Item("common.items.crafting_ing.animal_misc.raptor_feather")),
     (0.5, Item("common.items.weapons.hammer.burnt_drumstick")),
 ]

assets/common/loot_tables/creature/theropod/odonto.ron

@@ -1,4 +1,4 @@
 [
     (1.0, Item("common.items.crafting_ing.hide.rugged_hide")),
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.long_tusk", 2, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.long_tusk"), 2, 2)),
 ]

assets/common/loot_tables/creature/theropod/plate.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.plate", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.plate"), 1, 3)),
     (1.0, Item("common.items.crafting_ing.animal_misc.large_horn")),
 ]

assets/common/loot_tables/creature/theropod/raptor.ron

@@ -1,5 +1,5 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.elegant_crest", 1, 1)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.elegant_crest"), 1, 1)),
-    (2.0, ItemQuantity("common.items.crafting_ing.animal_misc.raptor_feather", 2, 6)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.raptor_feather"), 2, 6)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.scales", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.scales"), 1, 2)),
 ]

assets/common/loot_tables/creature/theropod/scale.ron

@@ -1,4 +1,4 @@
 [
-    (1.0, ItemQuantity("common.items.crafting_ing.animal_misc.raptor_feather", 1, 2)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.animal_misc.raptor_feather"), 1, 2)),
-    (2.0, ItemQuantity("common.items.crafting_ing.hide.scales", 2, 6)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.hide.scales"), 2, 6)),
 ]

assets/common/loot_tables/dungeon/sea_chapel/cardinal.ron

@@ -1,6 +1,6 @@
 [    
     (0.5, Item("common.items.crafting_ing.abyssal_heart")),
     (2.0, Item("common.items.crafting_ing.coral_branch")),
-    (2.5, ItemQuantity("common.items.utility.coins", 50, 100)),
+    (2.5, MultiDrop(Item("common.items.utility.coins"), 50, 100)),
     (0.2, Item("common.items.tool.instruments.glass_flute")),
 ]

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

@@ -3,12 +3,12 @@
     (1.0, LootTable("common.loot_tables.weapons.components.tier-0")),
     (1.0, LootTable("common.loot_tables.armor.tier-0")),
     // Currency
-    (3.0, ItemQuantity("common.items.utility.coins", 10, 20)),
+    (3.0, MultiDrop(Item("common.items.utility.coins"), 10, 20)),
     // Materials
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.linen", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.linen"), 3, 10)),
-    (1.0, ItemQuantity("common.items.crafting_ing.leather.simple_leather", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.leather.simple_leather"), 3, 10)),
-    (1.0, ItemQuantity("common.items.mineral.ingot.bronze", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.mineral.ingot.bronze"), 3, 10)),
-    (1.0, ItemQuantity("common.items.log.wood", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.log.wood"), 3, 10)),
     // Consumables
     (2.0, LootTable("common.loot_tables.consumable.poor")),
 ]

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

@@ -9,7 +9,7 @@
     // Chieftain Mask
     (1.0, Item("common.items.armor.misc.head.gnarling_mask")),
     // Indirect crafting materials for T2 gear
-    (1.0, ItemQuantity("common.items.crafting_ing.sticky_thread", 2, 5)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.sticky_thread"), 2, 5)),
-    (1.0, ItemQuantity("common.items.mineral.ore.coal", 2, 5)),
+    (1.0, MultiDrop(Item("common.items.mineral.ore.coal"), 2, 5)),
-    (1.0, ItemQuantity("common.items.crafting_ing.leather.leather_strips", 2, 5)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.leather.leather_strips"), 2, 5)),
 ]

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

@@ -1,6 +1,6 @@
 [
     // Currency
-    (1.0, ItemQuantity("common.items.utility.coins", 2, 4)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 2, 4)),
     // Food
     (1.0, LootTable("common.loot_tables.food.wild_ingredients")),
     // Nothing

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

@@ -1,4 +1,4 @@
 [
     (1.0, LootTable("common.loot_tables.dungeon.tier-0.enemy")),
-    (1.0, ItemQuantity("common.items.flowers.plant_fiber", 2, 4)),
+    (1.0, MultiDrop(Item("common.items.flowers.plant_fiber"), 2, 4)),
 ]

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

@@ -1,11 +1,11 @@
 [
     // Currency
-    (1.0, ItemQuantity("common.items.utility.coins", 10, 20)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 10, 20)),
     // Food
     (1.0, LootTable("common.loot_tables.food.wild_ingredients")),
     // Consumables
     (2.0, LootTable("common.loot_tables.consumable.poor")),
     // Crafting ingredients
-    (1.0, ItemQuantity("common.items.log.wood", 5, 10)),
+    (1.0, MultiDrop(Item("common.items.log.wood"), 5, 10)),
     (0.5, LootTable("common.loot_tables.weapons.components.secondary.sceptre")),
 ]

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

@@ -4,12 +4,12 @@
     (1.0, LootTable("common.loot_tables.armor.tier-1")),
     (0.5, Item("common.items.armor.misc.head.hog_hood")),
     // Currency
-    (3.0, ItemQuantity("common.items.utility.coins", 20, 50)),
+    (3.0, MultiDrop(Item("common.items.utility.coins"), 20, 50)),
     // Materials
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.wool", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.wool"), 3, 10)),
-    (1.0, ItemQuantity("common.items.crafting_ing.leather.thick_leather", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.leather.thick_leather"), 3, 10)),
-    (1.0, ItemQuantity("common.items.mineral.ingot.iron", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.mineral.ingot.iron"), 3, 10)),
-    (1.0, ItemQuantity("common.items.log.bamboo", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.log.bamboo"), 3, 10)),
     // Consumables
     (2.0, LootTable("common.loot_tables.consumable.poor")),
 ]

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

@@ -1,6 +1,6 @@
 [
     // Currency
-    (1.0, ItemQuantity("common.items.utility.coins", 4, 10)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 4, 10)),
     // Food
     (1.0, LootTable("common.loot_tables.food.wild_ingredients")),
     // Nothing

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

@@ -3,12 +3,12 @@
     (1.0, LootTable("common.loot_tables.weapons.components.tier-2")),
     (1.0, LootTable("common.loot_tables.armor.tier-2")),
     // Currency
-    (3.0, ItemQuantity("common.items.utility.coins", 50, 100)),
+    (3.0, MultiDrop(Item("common.items.utility.coins"), 50, 100)),
     // Materials
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.silk", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.silk"), 3, 10)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.scales", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.scales"), 3, 10)),
-    (1.0, ItemQuantity("common.items.mineral.ingot.steel", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.mineral.ingot.steel"), 3, 10)),
-    (1.0, ItemQuantity("common.items.log.hardwood", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.log.hardwood"), 3, 10)),
     // Consumables
     (2.0, LootTable("common.loot_tables.consumable.moderate")),
 ]

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

@@ -1,6 +1,6 @@
 [
     // Currency
-    (1.0, ItemQuantity("common.items.utility.coins", 10, 20)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 10, 20)),
     // Food
     (1.0, LootTable("common.loot_tables.food.wild_ingredients")),
     // Nothing

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

@@ -3,13 +3,13 @@
     (1.0, LootTable("common.loot_tables.weapons.components.tier-3")),
     (1.0, LootTable("common.loot_tables.armor.tier-3")),
     // Currency
-    (3.0, ItemQuantity("common.items.utility.coins", 100, 200)),
+    (3.0, MultiDrop(Item("common.items.utility.coins"), 100, 200)),
     // Materials
     // Allow ironwood to have higher drops till entity droppers are implemented
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.lifecloth", 2, 6)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.lifecloth"), 2, 6)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.carapace", 2, 6)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.carapace"), 2, 6)),
-    (1.0, ItemQuantity("common.items.mineral.ingot.cobalt", 2, 6)),
+    (1.0, MultiDrop(Item("common.items.mineral.ingot.cobalt"), 2, 6)),
-    (1.0, ItemQuantity("common.items.log.ironwood", 3, 7)),
+    (1.0, MultiDrop(Item("common.items.log.ironwood"), 3, 7)),
     // Consumables
     (2.0, LootTable("common.loot_tables.consumable.moderate")),
 ]

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

@@ -1,6 +1,6 @@
 [
     // Currency
-    (1.0, ItemQuantity("common.items.utility.coins", 20, 40)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 20, 40)),
     // Food
     (1.0, LootTable("common.loot_tables.food.prepared")),
     // Nothing

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

@@ -8,8 +8,8 @@
     (1.0, LootTable("common.loot_tables.weapons.legendary_melee")),
     // Crafting material
     // Allow for DS and Eldwood to have higher drops till entity droppers are implemented
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.sunsilk", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.sunsilk"), 1, 3)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.dragon_scale", 3, 8)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.dragon_scale"), 3, 8)),
-    (1.0, ItemQuantity("common.items.mineral.ingot.orichalcum", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.mineral.ingot.orichalcum"), 1, 3)),
-    (1.0, ItemQuantity("common.items.log.eldwood", 2, 6)),
+    (1.0, MultiDrop(Item("common.items.log.eldwood"), 2, 6)),
 ]

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

@@ -4,13 +4,13 @@
     (1.0, LootTable("common.loot_tables.armor.tier-4")),
     (1.0, Item("common.items.armor.misc.head.spikeguard")),
     // Currency
-    (3.0, ItemQuantity("common.items.utility.coins", 200, 500)),
+    (3.0, MultiDrop(Item("common.items.utility.coins"), 200, 500)),
     // Materials
     // Allow frostwood to have higher drops till entity droppers are implemented
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.moonweave", 1, 5)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.moonweave"), 1, 5)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.plate", 1, 5)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.plate"), 1, 5)),
-    (1.0, ItemQuantity("common.items.mineral.ingot.bloodsteel", 1, 5)),
+    (1.0, MultiDrop(Item("common.items.mineral.ingot.bloodsteel"), 1, 5)),
-    (1.0, ItemQuantity("common.items.log.frostwood", 3, 6)),
+    (1.0, MultiDrop(Item("common.items.log.frostwood"), 3, 6)),
     // Consumables
     (2.0, LootTable("common.loot_tables.consumable.good")),
 ]

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

@@ -1,6 +1,6 @@
 [
     // Currency
-    (1.0, ItemQuantity("common.items.utility.coins", 40, 100)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 40, 100)),
     // Food
     (1.0, LootTable("common.loot_tables.food.prepared")),
     // Nothing

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

@@ -1,6 +1,6 @@
 [
     // Currency
-    (10.0, ItemQuantity("common.items.utility.coins", 200, 500)),
+    (10.0, MultiDrop(Item("common.items.utility.coins"), 200, 500)),
     // Food
     (5.0, LootTable("common.loot_tables.food.prepared")),
     // Consumables

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

@@ -13,8 +13,8 @@
     // Crafting material
     // Allow for DS and Eldwood to have higher drops till entity droppers are implemented
     (1.0, Item("common.items.crafting_ing.mindflayer_bag_damaged")),
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.sunsilk", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.sunsilk"), 1, 3)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.dragon_scale", 3, 8)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.dragon_scale"), 3, 8)),
-    (1.0, ItemQuantity("common.items.mineral.ingot.orichalcum", 1, 3)),
+    (1.0, MultiDrop(Item("common.items.mineral.ingot.orichalcum"), 1, 3)),
-    (1.0, ItemQuantity("common.items.log.eldwood", 2, 6)),
+    (1.0, MultiDrop(Item("common.items.log.eldwood"), 2, 6)),
 ]

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

@@ -4,13 +4,13 @@
     (1.0, LootTable("common.loot_tables.armor.tier-4")),
     (0.1, Item("common.items.armor.cultist.bandana")),
     // Currency
-    (3.0, ItemQuantity("common.items.utility.coins", 200, 500)),
+    (3.0, MultiDrop(Item("common.items.utility.coins"), 200, 500)),
     // Materials
-    (1.0, ItemQuantity("common.items.crafting_ing.cloth.moonweave", 1, 5)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.cloth.moonweave"), 1, 5)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.plate", 1, 5)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.plate"), 1, 5)),
-    (1.0, ItemQuantity("common.items.mineral.ingot.bloodsteel", 1, 5)),
+    (1.0, MultiDrop(Item("common.items.mineral.ingot.bloodsteel"), 1, 5)),
-    (1.0, ItemQuantity("common.items.log.frostwood", 1, 5)),
+    (1.0, MultiDrop(Item("common.items.log.frostwood"), 1, 5)),
     // Consumables
     (2.0, LootTable("common.loot_tables.consumable.good")),
-    (0.1, ItemQuantity("common.items.food.spore_corruption", 1, 3)),
+    (0.1, MultiDrop(Item("common.items.food.spore_corruption"), 1, 3)),
 ]

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

@@ -1,8 +1,8 @@
 [
     // Currency
-    (1.0, ItemQuantity("common.items.utility.coins", 100, 200)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 100, 200)),
     // Food
     (1.0, LootTable("common.loot_tables.food.prepared")),
     // Cheese
-    (2.0, ItemQuantity("common.items.food.cheese", 3, 5)),
+    (2.0, MultiDrop(Item("common.items.food.cheese"), 3, 5)),
 ]

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

@@ -1,6 +1,6 @@
 [
     // Currency
-    (10.0, ItemQuantity("common.items.utility.coins", 500, 1000)),
+    (10.0, MultiDrop(Item("common.items.utility.coins"), 500, 1000)),
     // Food
     (5.0, LootTable("common.loot_tables.food.prepared")),
     // Consumables

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

@@ -1,6 +1,6 @@
 [
     // Currency
-    (30.0, ItemQuantity("common.items.utility.coins", 50, 100)),
+    (30.0, MultiDrop(Item("common.items.utility.coins"), 50, 100)),
     // Nothing
     (30.0, Nothing),
     // Special

assets/common/loot_tables/world/traveler0.ron

@@ -1,10 +1,10 @@
 [
     //Currency
-    (4.0, ItemQuantity("common.items.utility.coins", 50, 200)),
+    (4.0, MultiDrop(Item("common.items.utility.coins"), 50, 200)),
     //Food
     (4.0, LootTable("common.loot_tables.food.prepared")),
     //Flowers, pretty
-    (2.0, ItemQuantity("common.items.flowers.red", 3, 6)),
+    (2.0, MultiDrop(Item("common.items.flowers.red"), 3, 6)),
     //Weapon components
     (2.0, LootTable("common.loot_tables.weapons.components.tier-0")),
     (1.0, LootTable("common.loot_tables.weapons.components.tier-1")),

assets/common/loot_tables/world/traveler1.ron

@@ -1,15 +1,15 @@
 [
     //Currency
-    (3.0, ItemQuantity("common.items.utility.coins", 50, 200)),
+    (3.0, MultiDrop(Item("common.items.utility.coins"), 50, 200)),
-    (2.0, ItemQuantity("common.items.utility.coins", 200, 500)),
+    (2.0, MultiDrop(Item("common.items.utility.coins"), 200, 500)),
     //Food
     (3.0, LootTable("common.loot_tables.food.prepared")),
     //Ores
-    (2.0, ItemQuantity("common.items.mineral.ore.iron", 2, 7)),
+    (2.0, MultiDrop(Item("common.items.mineral.ore.iron"), 2, 7)),
     //Hides
-    (2.0, ItemQuantity("common.items.crafting_ing.hide.animal_hide", 5, 15)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.hide.animal_hide"), 5, 15)),
     //Flowers, pretty
-    (2.0, ItemQuantity("common.items.flowers.red", 3, 6)),
+    (2.0, MultiDrop(Item("common.items.flowers.red"), 3, 6)),
     //Weapon components
     (1.0, LootTable("common.loot_tables.weapons.components.tier-2")),
     (1.0, LootTable("common.loot_tables.weapons.components.tier-3")),

assets/common/loot_tables/world/traveler2.ron

@@ -1,21 +1,21 @@
 [
     //Currency
-    (3.0, ItemQuantity("common.items.utility.coins", 200, 500)),
+    (3.0, MultiDrop(Item("common.items.utility.coins"), 200, 500)),
-    (2.0, ItemQuantity("common.items.utility.coins", 2000, 5000)),
+    (2.0, MultiDrop(Item("common.items.utility.coins"), 2000, 5000)),
     //Food
     (3.0, LootTable("common.loot_tables.food.prepared")),
     //Ores
-    (2.0, ItemQuantity("common.items.mineral.ore.coal", 5, 15)),
+    (2.0, MultiDrop(Item("common.items.mineral.ore.coal"), 5, 15)),
-    (2.0, ItemQuantity("common.items.mineral.ore.iron", 2, 7)),
+    (2.0, MultiDrop(Item("common.items.mineral.ore.iron"), 2, 7)),
-    (1.0, ItemQuantity("common.items.mineral.ore.cobalt", 2, 5)),
+    (1.0, MultiDrop(Item("common.items.mineral.ore.cobalt"), 2, 5)),
-    (0.1, ItemQuantity("common.items.mineral.gem.diamond", 2, 5)),
+    (0.1, MultiDrop(Item("common.items.mineral.gem.diamond"), 2, 5)),
     //Hides
-    (2.0, ItemQuantity("common.items.crafting_ing.hide.animal_hide", 5, 15)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.hide.animal_hide"), 5, 15)),
-    (2.0, ItemQuantity("common.items.crafting_ing.hide.scales", 5, 15)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.hide.scales"), 5, 15)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.carapace", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.carapace"), 3, 10)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.tough_hide", 3, 10)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.tough_hide"), 3, 10)),
     //Flowers, very pretty
-    (2.0, ItemQuantity("common.items.flowers.red", 5, 10)),
+    (2.0, MultiDrop(Item("common.items.flowers.red"), 5, 10)),
     //Weapon components
     (1.0, LootTable("common.loot_tables.weapons.components.tier-2")),
     (1.0, LootTable("common.loot_tables.weapons.components.tier-3")),

assets/common/loot_tables/world/traveler3.ron

@@ -1,25 +1,25 @@
 [
     //Currency
-    (2.0, ItemQuantity("common.items.utility.coins", 200, 500)),
+    (2.0, MultiDrop(Item("common.items.utility.coins"), 200, 500)),
-    (1.0, ItemQuantity("common.items.utility.coins", 2000, 5000)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 2000, 5000)),
     //Food
     (4.0, LootTable("common.loot_tables.food.prepared")),
     //Ores
-    (2.0, ItemQuantity("common.items.mineral.ore.coal", 10, 30)),
+    (2.0, MultiDrop(Item("common.items.mineral.ore.coal"), 10, 30)),
-    (2.0, ItemQuantity("common.items.mineral.ore.iron", 4, 14)),
+    (2.0, MultiDrop(Item("common.items.mineral.ore.iron"), 4, 14)),
-    (1.0, ItemQuantity("common.items.mineral.ore.cobalt", 4, 10)),
+    (1.0, MultiDrop(Item("common.items.mineral.ore.cobalt"), 4, 10)),
-    (0.1, ItemQuantity("common.items.mineral.gem.diamond", 4, 10)),
+    (0.1, MultiDrop(Item("common.items.mineral.gem.diamond"), 4, 10)),
     //Hides
-    (2.0, ItemQuantity("common.items.crafting_ing.hide.animal_hide", 10, 30)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.hide.animal_hide"), 10, 30)),
-    (2.0, ItemQuantity("common.items.crafting_ing.hide.scales", 10, 30)),
+    (2.0, MultiDrop(Item("common.items.crafting_ing.hide.scales"), 10, 30)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.carapace", 6, 20)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.carapace"), 6, 20)),
-    (1.0, ItemQuantity("common.items.crafting_ing.hide.tough_hide", 6, 20)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.hide.tough_hide"), 6, 20)),
-    (0.3, ItemQuantity("common.items.crafting_ing.hide.plate", 1, 8)),
+    (0.3, MultiDrop(Item("common.items.crafting_ing.hide.plate"), 1, 8)),
-    (0.1, ItemQuantity("common.items.crafting_ing.hide.rugged_hide", 1, 6)),
+    (0.1, MultiDrop(Item("common.items.crafting_ing.hide.rugged_hide"), 1, 6)),
     //Flowers, very pretty
-    (3.0, ItemQuantity("common.items.flowers.red", 10, 20)),
+    (3.0, MultiDrop(Item("common.items.flowers.red"), 10, 20)),
-    (2.0, ItemQuantity("common.items.flowers.moonbell", 6, 12)),
+    (2.0, MultiDrop(Item("common.items.flowers.moonbell"), 6, 12)),
-    (1.0, ItemQuantity("common.items.flowers.pyrebloom", 3, 6)),
+    (1.0, MultiDrop(Item("common.items.flowers.pyrebloom"), 3, 6)),
     //Weapon components
     (1.5, LootTable("common.loot_tables.weapons.components.tier-4")),
     (0.2, LootTable("common.loot_tables.weapons.components.tier-5")),

assets/common/loot_tables/world/world_bosses/gigas_frost/boss.ron

@@ -1,4 +1,4 @@
 [
     (1.0, LootTable("common.loot_tables.armor.boreal")),
-    (1.0, ItemQuantity("common.items.crafting_ing.glacial_crystal", 5, 15)),
+    (1.0, MultiDrop(Item("common.items.crafting_ing.glacial_crystal"), 5, 15)),
 ]

assets/common/loot_tables/world/world_bosses/gigas_frost/summon.ron

@@ -1,6 +1,6 @@
 [
     // Currency
-    (1.0, ItemQuantity("common.items.utility.coins", 40, 100)),
+    (1.0, MultiDrop(Item("common.items.utility.coins"), 40, 100)),
     // Food
     (1.0, LootTable("common.loot_tables.food.prepared")),
     // Nothing

client/src/lib.rs

@@ -102,7 +102,7 @@ pub enum Event {
     },
     Disconnect,
     DisconnectionNotification(u64),
-    InventoryUpdated(InventoryUpdateEvent),
+    InventoryUpdated(Vec<InventoryUpdateEvent>),
     Kicked(String),
     Notification(Notification),
     SetViewDistance(u32),
@@ -2388,11 +2388,16 @@ impl Client {
                 self.presence = None;
                 self.clean_state();
             },
-            ServerGeneral::InventoryUpdate(inventory, event) => {
+            ServerGeneral::InventoryUpdate(inventory, events) => {
+                let mut update_inventory = false;
+                for event in events.iter() {
                     match event {
                         InventoryUpdateEvent::BlockCollectFailed { .. } => {},
                         InventoryUpdateEvent::EntityCollectFailed { .. } => {},
-                    _ => {
+                        _ => update_inventory = true,
+                    }
+                }
+                if update_inventory {
                     // Push the updated inventory component to the client
                     // FIXME: Figure out whether this error can happen under normal gameplay,
                     // if not find a better way to handle it, if so maybe consider kicking the
@@ -2410,12 +2415,11 @@ impl Client {
                              entity was not found... this may be a bug."
                         );
                     }
-                    },
                 }
 
                 self.update_available_recipes();
 
-                frontend_events.push(Event::InventoryUpdated(event));
+                frontend_events.push(Event::InventoryUpdated(events));
             },
             ServerGeneral::SetViewDistance(vd) => {
                 self.view_distance = Some(vd);

common/Cargo.toml

@@ -91,6 +91,7 @@ rand_chacha = "0.3"
 tracing-subscriber = { version = "0.3.7", default-features = false, features = ["fmt", "time", "ansi", "smallvec", "env-filter"] }
 petgraph = "0.6.0"
 
+
 [[bench]]
 name = "chonk_benchmark"
 harness = false
@@ -99,6 +100,10 @@ harness = false
 name = "color_benchmark"
 harness = false
 
+[[bench]]
+name = "loot_benchmark"
+harness = false
+
 [[bin]]
 name = "csv_export"
 required-features = ["bin_csv"]

common/benches/loot_benchmark.rs

@@ -0,0 +1,146 @@
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use rand::thread_rng;
+use veloren_common::lottery::distribute_many;
+
+fn criterion_benchmark(c: &mut Criterion) {
+    let mut c = c.benchmark_group("loot");
+
+    c.bench_function("loot distribute 1000 among 10", |b| {
+        let mut rng = thread_rng();
+        let v = (1..=10).map(|i| (i as f32 * 10.0, i)).collect::<Vec<_>>();
+        let items = vec![1, 2, 997];
+        b.iter(|| {
+            distribute_many(
+                black_box(v.iter().copied()),
+                &mut rng,
+                black_box(&items),
+                |i| *i,
+                |a, b, c| {
+                    black_box((a, b, c));
+                },
+            )
+        })
+    });
+
+    c.bench_function("loot distribute 1000 among 100", |b| {
+        let mut rng = thread_rng();
+        let v = (1..=100).map(|i| (i as f32 * 10.0, i)).collect::<Vec<_>>();
+        let items = vec![1, 2, 997];
+        b.iter(|| {
+            distribute_many(
+                black_box(v.iter().copied()),
+                &mut rng,
+                black_box(&items),
+                |i| *i,
+                |a, b, c| {
+                    black_box((a, b, c));
+                },
+            )
+        })
+    });
+
+    c.bench_function("loot distribute 10000 among 10", |b| {
+        let mut rng = thread_rng();
+        let v = (1..=10).map(|i| (i as f32 * 10.0, i)).collect::<Vec<_>>();
+        let items = vec![1, 2, 3, 9994];
+        b.iter(|| {
+            distribute_many(
+                black_box(v.iter().copied()),
+                &mut rng,
+                black_box(&items),
+                |i| *i,
+                |a, b, c| {
+                    black_box((a, b, c));
+                },
+            )
+        })
+    });
+
+    c.bench_function("loot distribute 10000 among 1", |b| {
+        let mut rng = thread_rng();
+        let v = (1..=1).map(|i| (i as f32 * 10.0, i)).collect::<Vec<_>>();
+        let items = vec![1, 2, 3, 9994];
+        b.iter(|| {
+            distribute_many(
+                black_box(v.iter().copied()),
+                &mut rng,
+                black_box(&items),
+                |i| *i,
+                |a, b, c| {
+                    black_box((a, b, c));
+                },
+            )
+        })
+    });
+
+    c.bench_function("loot distribute 100000 among 20", |b| {
+        let mut rng = thread_rng();
+        let v = (1..=20).map(|i| (i as f32 * 10.0, i)).collect::<Vec<_>>();
+        let items = vec![1, 2, 3, 99994];
+        b.iter(|| {
+            distribute_many(
+                black_box(v.iter().copied()),
+                &mut rng,
+                black_box(&items),
+                |i| *i,
+                |a, b, c| {
+                    black_box((a, b, c));
+                },
+            )
+        })
+    });
+
+    c.bench_function("loot distribute 1000 among 400", |b| {
+        let mut rng = thread_rng();
+        let v = (1..=400).map(|i| (i as f32 * 10.0, i)).collect::<Vec<_>>();
+        let items = vec![1, 2, 997];
+        b.iter(|| {
+            distribute_many(
+                v.iter().copied(),
+                &mut rng,
+                black_box(&items),
+                |i| *i,
+                |a, b, c| {
+                    black_box((a, b, c));
+                },
+            )
+        })
+    });
+
+    c.bench_function("loot distribute 1000 among 1000", |b| {
+        let mut rng = thread_rng();
+        let v = (1..=1000).map(|i| (i as f32 * 10.0, i)).collect::<Vec<_>>();
+        let items = vec![1, 2, 997];
+        b.iter(|| {
+            distribute_many(
+                v.iter().copied(),
+                &mut rng,
+                black_box(&items),
+                |i| *i,
+                |a, b, c| {
+                    black_box((a, b, c));
+                },
+            )
+        })
+    });
+
+    c.bench_function("loot distribute 10000 among 1000", |b| {
+        let mut rng = thread_rng();
+        let v = (1..=1000).map(|i| (i as f32 * 10.0, i)).collect::<Vec<_>>();
+        let items = vec![1, 2, 3, 9994];
+        b.iter(|| {
+            distribute_many(
+                v.iter().copied(),
+                &mut rng,
+                black_box(&items),
+                |i| *i,
+                |a, b, c| {
+                    black_box((a, b, c));
+                },
+            )
+        })
+    });
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);

common/net/src/msg/server.rs

@@ -170,7 +170,7 @@ pub enum ServerGeneral {
     /// Trigger cleanup for when the client goes back to the `Registered` state
     /// from an ingame state
     ExitInGameSuccess,
-    InventoryUpdate(comp::Inventory, comp::InventoryUpdateEvent),
+    InventoryUpdate(comp::Inventory, Vec<comp::InventoryUpdateEvent>),
     /// NOTE: The client can infer that entity view distance will be at most the
     /// terrain view distance that we send here (and if lower it won't be
     /// modified). So we just need to send the terrain VD back to the client

common/src/bin/csv_export/main.rs

@@ -254,31 +254,28 @@ fn loot_table(loot_table: &str) -> Result<(), Box<dyn Error>> {
         .div(10_f32.powi(5))
         .to_string();
 
+        fn write_loot_spec<W: std::io::Write>(
+            wtr: &mut csv::Writer<W>,
+            loot_spec: &LootSpec<String>,
+            chance: &str,
+        ) -> Result<(), Box<dyn Error>> {
             let get_hands = |hands| match hands {
                 Some(Hands::One) => "One",
                 Some(Hands::Two) => "Two",
                 None => "",
             };
-
+            match loot_spec {
-        match item {
+                LootSpec::Item(item) => wtr.write_record([chance, "Item", item, "", ""])?,
-            LootSpec::Item(item) => wtr.write_record([&chance, "Item", item, "", ""])?,
-            LootSpec::ItemQuantity(item, lower, upper) => wtr.write_record([
-                &chance,
-                "Item",
-                item,
-                &lower.to_string(),
-                &upper.to_string(),
-            ])?,
                 LootSpec::LootTable(table) => {
-                wtr.write_record([&chance, "LootTable", table, "", ""])?
+                    wtr.write_record([chance, "LootTable", table, "", ""])?
                 },
-            LootSpec::Nothing => wtr.write_record([&chance, "Nothing", "", ""])?,
+                LootSpec::Nothing => wtr.write_record([chance, "Nothing", "", ""])?,
                 LootSpec::ModularWeapon {
                     tool,
                     material,
                     hands,
                 } => wtr.write_record([
-                &chance,
+                    chance,
                     "Modular Weapon",
                     &get_tool_kind(tool),
                     material.into(),
@@ -289,13 +286,21 @@ fn loot_table(loot_table: &str) -> Result<(), Box<dyn Error>> {
                     material,
                     hands,
                 } => wtr.write_record([
-                &chance,
+                    chance,
                     "Modular Weapon Primary Component",
                     &get_tool_kind(tool),
                     material.into(),
                     get_hands(*hands),
                 ])?,
+                LootSpec::MultiDrop(loot, _, _) => {
+                    // TODO: Write amount gotten somewhere?
+                    write_loot_spec(wtr, loot, chance)?;
+                },
             }
+            Ok(())
+        }
+
+        write_loot_spec(&mut wtr, item, &chance)?;
     }
 
     wtr.flush()?;
@@ -406,16 +411,6 @@ fn entity_drops(entity_config: &str) -> Result<(), Box<dyn Error>> {
                         "1".to_owned(),
                     ])?;
                 },
-                LootSpec::ItemQuantity(item, lower, upper) => {
-                    wtr.write_record(&[
-                        name.clone(),
-                        asset_path.to_owned(),
-                        percent_chance,
-                        item_name(item),
-                        // Tab needed so excel doesn't think it is a date...
-                        format!("{lower}-{upper}\t"),
-                    ])?;
-                },
                 LootSpec::Nothing => {
                     wtr.write_record(&[
                         name.clone(),
@@ -477,6 +472,7 @@ fn entity_drops(entity_config: &str) -> Result<(), Box<dyn Error>> {
                     }
                 },
                 LootSpec::LootTable(_) => unreachable!(),
+                LootSpec::MultiDrop(_, _, _) => todo!(),
             }
         }
 

common/src/comp/inventory/item/mod.rs

@@ -921,6 +921,34 @@ impl Item {
         new_item
     }
 
+    pub fn stacked_duplicates<'a>(
+        &'a self,
+        ability_map: &'a AbilityMap,
+        msm: &'a MaterialStatManifest,
+        count: u32,
+    ) -> impl Iterator<Item = Self> + 'a {
+        let max_stack_count = count / self.max_amount();
+        let rest = count % self.max_amount();
+
+        (0..max_stack_count)
+            .map(|_| {
+                let mut item = self.duplicate(ability_map, msm);
+
+                item.set_amount(item.max_amount())
+                    .expect("max_amount() is always a valid amount.");
+
+                item
+            })
+            .chain((rest > 0).then(move || {
+                let mut item = self.duplicate(ability_map, msm);
+
+                item.set_amount(rest)
+                    .expect("anything less than max_amount() is always a valid amount.");
+
+                item
+            }))
+    }
+
     /// FIXME: HACK: In order to set the entity ID asynchronously, we currently
     /// start it at None, and then atomically set it when it's saved for the
     /// first time in the database.  Because this requires shared mutable
@@ -1167,8 +1195,8 @@ impl Item {
 
     pub fn slot_mut(&mut self, slot: usize) -> Option<&mut InvSlot> { self.slots.get_mut(slot) }
 
-    pub fn try_reclaim_from_block(block: Block) -> Option<Self> {
+    pub fn try_reclaim_from_block(block: Block) -> Option<Vec<(u32, Self)>> {
-        block.get_sprite()?.collectible_id()??.to_item()
+        block.get_sprite()?.collectible_id()??.to_items()
     }
 
     pub fn ability_spec(&self) -> Option<Cow<AbilitySpec>> {
@@ -1282,6 +1310,16 @@ impl Item {
     }
 }
 
+pub fn flatten_counted_items<'a>(
+    items: &'a [(u32, Item)],
+    ability_map: &'a AbilityMap,
+    msm: &'a MaterialStatManifest,
+) -> impl Iterator<Item = Item> + 'a {
+    items
+        .iter()
+        .flat_map(|(count, item)| item.stacked_duplicates(ability_map, msm, *count))
+}
+
 /// Provides common methods providing details about an item definition
 /// for either an `Item` containing the definition, or the actual `ItemDef`
 pub trait ItemDesc {
@@ -1370,9 +1408,9 @@ impl Component for Item {
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct ItemDrop(pub Item);
+pub struct ItemDrops(pub Vec<(u32, Item)>);
 
-impl Component for ItemDrop {
+impl Component for ItemDrops {
     type Storage = DenseVecStorage<Self>;
 }
 

common/src/comp/inventory/mod.rs

@@ -995,13 +995,19 @@ impl Default for InventoryUpdateEvent {
 
 #[derive(Clone, Debug, Default, Serialize, Deserialize)]
 pub struct InventoryUpdate {
-    event: InventoryUpdateEvent,
+    events: Vec<InventoryUpdateEvent>,
 }
 
 impl InventoryUpdate {
-    pub fn new(event: InventoryUpdateEvent) -> Self { Self { event } }
+    pub fn new(event: InventoryUpdateEvent) -> Self {
+        Self {
+            events: vec![event],
+        }
+    }
 
-    pub fn event(&self) -> InventoryUpdateEvent { self.event.clone() }
+    pub fn push(&mut self, event: InventoryUpdateEvent) { self.events.push(event); }
+
+    pub fn take_events(&mut self) -> Vec<InventoryUpdateEvent> { std::mem::take(&mut self.events) }
 }
 
 impl Component for InventoryUpdate {

common/src/comp/inventory/trade_pricing.rs

@@ -362,20 +362,17 @@ impl From<Vec<(f32, LootSpec<String>)>> for ProbabilityFile {
         } else {
             1.0 / content.iter().map(|e| e.0).sum::<f32>()
         };
-        Self {
+        fn get_content(
-            content: content
+            rescale: f32,
-                .into_iter()
+            p0: f32,
-                .flat_map(|(p0, loot)| match loot {
+            loot: LootSpec<String>,
+        ) -> Vec<(f32, ItemDefinitionIdOwned, f32)> {
+            match loot {
                 LootSpec::Item(asset) => {
                     vec![(p0 * rescale, ItemDefinitionIdOwned::Simple(asset), 1.0)]
                 },
-                    LootSpec::ItemQuantity(asset, a, b) => vec![(
-                        p0 * rescale,
-                        ItemDefinitionIdOwned::Simple(asset),
-                        (a + b) as f32 * 0.5,
-                    )],
                 LootSpec::LootTable(table_asset) => {
-                        let unscaled = &Self::load_expect(&table_asset).read().content;
+                    let unscaled = &ProbabilityFile::load_expect(&table_asset).read().content;
                     let scale = p0 * rescale;
                     unscaled
                         .iter()
@@ -429,7 +426,20 @@ impl From<Vec<(f32, LootSpec<String>)>> for ProbabilityFile {
                     res
                 },
                 LootSpec::Nothing => Vec::new(),
-                })
+                LootSpec::MultiDrop(loot, a, b) => {
+                    let average_count = (a + b) as f32 * 0.5;
+                    let mut content = get_content(rescale, p0, *loot);
+                    for (_, _, count) in content.iter_mut() {
+                        *count *= average_count;
+                    }
+                    content
+                },
+            }
+        }
+        Self {
+            content: content
+                .into_iter()
+                .flat_map(|(p0, loot)| get_content(rescale, p0, loot))
                 .collect(),
         }
     }
@@ -1231,12 +1241,4 @@ mod tests {
         let probability: ProbabilityFile = loot_table.into();
         assert!(normalized(&probability));
     }
-
-    #[test]
-    fn test_normalizing_table4() {
-        let quantity = |asset: &str, a, b| LootSpec::ItemQuantity(asset.to_owned(), a, b);
-        let loot_table = vec![(1.0, quantity("such", 3, 5)), (1.0, quantity("much", 5, 9))];
-        let probability: ProbabilityFile = loot_table.into();
-        assert!(normalized(&probability));
-    }
 }

common/src/comp/loot_owner.rs

@@ -74,7 +74,7 @@ impl Component for LootOwner {
     type Storage = DerefFlaggedStorage<Self, specs::DenseVecStorage<Self>>;
 }
 
-#[derive(Debug, Copy, Clone, Serialize, Deserialize)]
+#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub enum LootOwnerKind {
     Player(Uid),
     Group(Group),

common/src/comp/mod.rs

@@ -92,7 +92,7 @@ pub use self::{
             self,
             item_key::ItemKey,
             tool::{self, AbilityItem},
-            Item, ItemConfig, ItemDrop,
+            Item, ItemConfig, ItemDrops,
         },
         slot, CollectFailedReason, Inventory, InventoryUpdate, InventoryUpdateEvent,
     },

common/src/lottery.rs

@@ -26,6 +26,8 @@
 // Cheese drop rate = 3/X = 29.6%
 // Coconut drop rate = 1/X = 9.85%
 
+use std::hash::Hash;
+
 use crate::{
     assets::{self, AssetExt},
     comp::{inventory::item, Item},
@@ -76,12 +78,136 @@ impl<T> Lottery<T> {
     pub fn total(&self) -> f32 { self.total }
 }
 
+/// Try to distribute stacked items fairly between weighted participants.
+pub fn distribute_many<T: Copy + Eq + Hash, I>(
+    participants: impl IntoIterator<Item = (f32, T)>,
+    rng: &mut impl Rng,
+    items: &[I],
+    mut get_amount: impl FnMut(&I) -> u32,
+    mut exec_item: impl FnMut(&I, T, u32),
+) {
+    struct Participant<T> {
+        // weight / total
+        weight: f32,
+        sorted_weight: f32,
+        data: T,
+        recieved_count: u32,
+        current_recieved_count: u32,
+    }
+
+    impl<T> Participant<T> {
+        fn give(&mut self, amount: u32) {
+            self.current_recieved_count += amount;
+            self.recieved_count += amount;
+        }
+    }
+
+    // Nothing to distribute, we can return early.
+    if items.is_empty() {
+        return;
+    }
+
+    let mut total_weight = 0.0;
+
+    let mut participants = participants
+        .into_iter()
+        .map(|(weight, participant)| Participant {
+            weight,
+            sorted_weight: {
+                total_weight += weight;
+                total_weight - weight
+            },
+            data: participant,
+            recieved_count: 0,
+            current_recieved_count: 0,
+        })
+        .collect::<Vec<_>>();
+
+    let total_item_amount = items.iter().map(&mut get_amount).sum::<u32>();
+
+    let mut current_total_weight = total_weight;
+
+    for item in items.iter() {
+        let amount = get_amount(item);
+        let mut distributed = 0;
+
+        let Some(mut give) = participants
+            .iter()
+            .map(|participant| (total_item_amount as f32 * participant.weight / total_weight).ceil() as u32 - participant.recieved_count)
+            .min() else {
+            tracing::error!("Tried to distribute items to no participants.");
+            return;
+        };
+
+        while distributed < amount {
+            // Can't give more than amount, and don't give more than the average between all
+            // to keep things well distributed.
+            let max_give = (amount / participants.len() as u32).clamp(1, amount - distributed);
+            give = give.clamp(1, max_give);
+            let x = rng.gen_range(0.0..=current_total_weight);
+
+            let index = participants
+                .binary_search_by(|item| item.sorted_weight.partial_cmp(&x).unwrap())
+                .unwrap_or_else(|i| i.saturating_sub(1));
+
+            let participant_count = participants.len();
+
+            let Some(winner) = participants
+                .get_mut(index) else {
+                tracing::error!("Tried to distribute items to no participants.");
+                return;
+            };
+
+            winner.give(give);
+            distributed += give;
+
+            // If a participant has received enough, remove it.
+            if participant_count > 1
+                && winner.recieved_count as f32 / total_item_amount as f32
+                    >= winner.weight / total_weight
+            {
+                current_total_weight = index
+                    .checked_sub(1)
+                    .and_then(|i| Some(participants.get(i)?.sorted_weight))
+                    .unwrap_or(0.0);
+                let winner = participants.swap_remove(index);
+                exec_item(item, winner.data, winner.current_recieved_count);
+
+                // Keep participant weights correct so that we can binary search it.
+                for participant in &mut participants[index..] {
+                    current_total_weight += participant.weight;
+                    participant.sorted_weight = current_total_weight - participant.weight;
+                }
+
+                // Update max item give amount.
+                give = participants
+                    .iter()
+                    .map(|participant| {
+                        (total_item_amount as f32 * participant.weight / total_weight).ceil() as u32
+                            - participant.recieved_count
+                    })
+                    .min()
+                    .unwrap_or(0);
+            } else {
+                give = give.min(
+                    (total_item_amount as f32 * winner.weight / total_weight).ceil() as u32
+                        - winner.recieved_count,
+                );
+            }
+        }
+        for participant in participants.iter_mut() {
+            if participant.current_recieved_count != 0 {
+                exec_item(item, participant.data, participant.current_recieved_count);
+                participant.current_recieved_count = 0;
+            }
+        }
+    }
+}
+
 #[derive(Clone, Debug, PartialEq, Eq, Deserialize, Serialize)]
 pub enum LootSpec<T: AsRef<str>> {
     /// Asset specifier
     Item(T),
-    /// Asset specifier, lower range, upper range
-    ItemQuantity(T, u32, u32),
     /// Loot table
     LootTable(T),
     /// No loot given
@@ -97,66 +223,98 @@ pub enum LootSpec<T: AsRef<str>> {
         material: item::Material,
         hands: Option<item::tool::Hands>,
     },
+    /// LootSpec, lower range, upper range
+    MultiDrop(Box<LootSpec<T>>, u32, u32),
 }
 
 impl<T: AsRef<str>> LootSpec<T> {
-    pub fn to_item(&self) -> Option<Item> {
+    fn to_items_inner(
-        let mut rng = thread_rng();
+        &self,
-        match self {
+        rng: &mut rand::rngs::ThreadRng,
-            Self::Item(item) => Item::new_from_asset(item.as_ref()).map_or_else(
+        amount: u32,
+        items: &mut Vec<(u32, Item)>,
+    ) {
+        let convert_item = |item: &T| {
+            Item::new_from_asset(item.as_ref()).map_or_else(
                 |e| {
                     warn!(?e, "error while loading item: {}", item.as_ref());
                     None
                 },
                 Some,
-            ),
+            )
-            Self::ItemQuantity(item, lower, upper) => {
+        };
-                let range = *lower..=*upper;
+        let mut push_item = |mut item: Item, count: u32| {
-                let quantity = thread_rng().gen_range(range);
+            let count = item.amount().saturating_mul(count);
-                match Item::new_from_asset(item.as_ref()) {
+            item.set_amount(1).expect("1 is always a valid amount.");
-                    Ok(mut item) => {
+            let hash = item.item_hash();
-                        // TODO: Handle multiple of an item that is unstackable
+            match items.binary_search_by_key(&hash, |(_, item)| item.item_hash()) {
-                        if item.set_amount(quantity).is_err() {
+                Ok(i) => {
-                            warn!("Tried to set quantity on non stackable item");
+                    // Since item hash can collide with other items, we search nearby items with the
-                        }
+                    // same hash.
-                        Some(item)
+                    // NOTE: The `ParitalEq` implementation for `Item` doesn't compare some data
-                    },
+                    // like durability, or wether slots contain anything. Although since these are
-                    Err(e) => {
+                    // Newly loaded items we don't care about comparing those for deduplication
-                        warn!(?e, "error while loading item: {}", item.as_ref());
+                    // here.
-                        None
+                    let has_same_hash = |i: &usize| items[*i].1.item_hash() == hash;
-                    },
+                    if let Some(i) = (i..items.len())
+                        .take_while(has_same_hash)
+                        .chain((0..i).rev().take_while(has_same_hash))
+                        .find(|i| items[*i].1 == item)
+                    {
+                        // We saturate at 4 billion items, could use u64 instead if this isn't
+                        // desirable.
+                        items[i].0 = items[i].0.saturating_add(count);
+                    } else {
+                        items.insert(i, (count, item));
                     }
                 },
-            Self::LootTable(table) => Lottery::<LootSpec<String>>::load_expect(table.as_ref())
+                Err(i) => items.insert(i, (count, item)),
-                .read()
+            }
-                .choose()
+        };
-                .to_item(),
+
-            Self::Nothing => None,
+        match self {
+            Self::Item(item) => {
+                if let Some(item) = convert_item(item) {
+                    push_item(item, amount);
+                }
+            },
+            Self::LootTable(table) => {
+                let loot_spec = Lottery::<LootSpec<String>>::load_expect(table.as_ref()).read();
+                for _ in 0..amount {
+                    loot_spec.choose().to_items_inner(rng, 1, items)
+                }
+            },
+            Self::Nothing => {},
             Self::ModularWeapon {
                 tool,
                 material,
                 hands,
-            } => item::modular::random_weapon(*tool, *material, *hands, &mut rng).map_or_else(
+            } => {
-                |e| {
+                for _ in 0..amount {
+                    match item::modular::random_weapon(*tool, *material, *hands, rng) {
+                        Ok(item) => push_item(item, 1),
+                        Err(e) => {
                             warn!(
                                 ?e,
-                        "error while creating modular weapon. Toolkind: {:?}, Material: {:?}, \
+                                "error while creating modular weapon. Toolkind: {:?}, Material: \
-                         Hands: {:?}",
+                                 {:?}, Hands: {:?}",
                                 tool,
                                 material,
                                 hands,
                             );
-                    None
                         },
-                Some,
+                    }
-            ),
+                }
+            },
             Self::ModularWeaponPrimaryComponent {
                 tool,
                 material,
                 hands,
-            } => item::modular::random_weapon_primary_component(*tool, *material, *hands, &mut rng)
+            } => {
-                .map_or_else(
+                for _ in 0..amount {
-                    |e| {
+                    match item::modular::random_weapon(*tool, *material, *hands, rng) {
+                        Ok(item) => push_item(item, 1),
+                        Err(e) => {
                             warn!(
                                 ?e,
                                 "error while creating modular weapon primary component. Toolkind: \
@@ -165,10 +323,29 @@ impl<T: AsRef<str>> LootSpec<T> {
                                 material,
                                 hands,
                             );
-                        None
                         },
-                    |(comp, _)| Some(comp),
+                    }
-                ),
+                }
+            },
+            Self::MultiDrop(loot_spec, lower, upper) => {
+                let sub_amount = rng.gen_range(*lower..=*upper);
+                // We saturate at 4 billion items, could use u64 instead if this isn't
+                // desirable.
+                loot_spec.to_items_inner(rng, sub_amount.saturating_mul(amount), items);
+            },
+        }
+    }
+
+    pub fn to_items(&self) -> Option<Vec<(u32, Item)>> {
+        let mut items = Vec::new();
+        self.to_items_inner(&mut thread_rng(), 1, &mut items);
+
+        if !items.is_empty() {
+            items.sort_unstable_by_key(|(amount, _)| *amount);
+
+            Some(items)
+        } else {
+            None
         }
     }
 }
@@ -189,21 +366,6 @@ pub mod tests {
             LootSpec::Item(item) => {
                 Item::new_from_asset_expect(item);
             },
-            LootSpec::ItemQuantity(item, lower, upper) => {
-                assert!(
-                    *lower > 0,
-                    "Lower quantity must be more than 0. It is {}.",
-                    lower
-                );
-                assert!(
-                    upper >= lower,
-                    "Upper quantity must be at least the value of lower quantity. Upper value: \
-                     {}, low value: {}.",
-                    upper,
-                    lower
-                );
-                Item::new_from_asset_expect(item);
-            },
             LootSpec::LootTable(loot_table) => {
                 let loot_table = Lottery::<LootSpec<String>>::load_expect_cloned(loot_table);
                 validate_table_contents(loot_table);
@@ -236,6 +398,21 @@ pub mod tests {
                         )
                     });
             },
+            LootSpec::MultiDrop(loot_spec, lower, upper) => {
+                assert!(
+                    *lower > 0,
+                    "Lower quantity must be more than 0. It is {}.",
+                    lower
+                );
+                assert!(
+                    upper >= lower,
+                    "Upper quantity must be at least the value of lower quantity. Upper value: \
+                     {}, low value: {}.",
+                    upper,
+                    lower
+                );
+                validate_loot_spec(loot_spec);
+            },
         }
     }
 
@@ -253,4 +430,24 @@ pub mod tests {
             validate_table_contents(loot_table.clone());
         }
     }
+
+    #[test]
+    fn test_distribute_many() {
+        let mut rng = thread_rng();
+
+        // Known successful case
+        for _ in 0..10 {
+            distribute_many(
+                vec![(0.4f32, "a"), (0.4, "b"), (0.2, "c")],
+                &mut rng,
+                &[("item", 10)],
+                |(_, m)| *m,
+                |_item, winner, count| match winner {
+                    "a" | "b" => assert_eq!(count, 4),
+                    "c" => assert_eq!(count, 2),
+                    _ => unreachable!(),
+                },
+            );
+        }
+    }
 }

common/state/src/state.rs

@@ -253,7 +253,7 @@ impl State {
         ecs.register::<comp::MapMarker>();
         ecs.register::<comp::Projectile>();
         ecs.register::<comp::Melee>();
-        ecs.register::<comp::ItemDrop>();
+        ecs.register::<comp::ItemDrops>();
         ecs.register::<comp::ChatMode>();
         ecs.register::<comp::Faction>();
         ecs.register::<comp::invite::Invite>();

server/src/cmd.rs

@@ -577,12 +577,20 @@ fn handle_give_item(
                     });
             }
 
-            insert_or_replace_component(
+            let mut inventory_update = server
-                server,
+                .state
+                .ecs_mut()
+                .write_storage::<comp::InventoryUpdate>();
+            if let Some(update) = inventory_update.get_mut(target) {
+                update.push(comp::InventoryUpdateEvent::Given);
+            } else {
+                inventory_update
+                    .insert(
                         target,
                         comp::InventoryUpdate::new(comp::InventoryUpdateEvent::Given),
-                "target",
+                    )
-            )?;
+                    .map_err(|_| "Entity target is dead!")?;
+            }
             res
         } else {
             Err(format!("Invalid item: {}", item_name))
@@ -686,8 +694,8 @@ fn handle_make_npc(
                     entity_builder = entity_builder.with(agent);
                 }
 
-                if let Some(drop_item) = loot.to_item() {
+                if let Some(drop_items) = loot.to_items() {
-                    entity_builder = entity_builder.with(comp::ItemDrop(drop_item));
+                    entity_builder = entity_builder.with(comp::ItemDrops(drop_items));
                 }
 
                 // Some would say it's a hack, some would say it's incomplete

server/src/events/entity_creation.rs

@@ -9,7 +9,7 @@ use common::{
         aura::{Aura, AuraKind, AuraTarget},
         beam,
         buff::{BuffCategory, BuffData, BuffKind, BuffSource},
-        shockwave, Alignment, BehaviorCapability, Body, ItemDrop, LightEmitter, Object, Ori, Pos,
+        shockwave, Alignment, BehaviorCapability, Body, ItemDrops, LightEmitter, Object, Ori, Pos,
         Projectile, TradingBehavior, Vel, WaypointArea,
     },
     event::{EventBus, NpcBuilder, UpdateCharacterMetadata},
@@ -118,8 +118,8 @@ pub fn handle_create_npc(server: &mut Server, pos: Pos, mut npc: NpcBuilder) ->
         entity
     };
 
-    let entity = if let Some(drop_item) = npc.loot.to_item() {
+    let entity = if let Some(drop_items) = npc.loot.to_items() {
-        entity.with(ItemDrop(drop_item))
+        entity.with(ItemDrops(drop_items))
     } else {
         entity
     };

server/src/events/entity_manipulation.rs

@@ -19,13 +19,16 @@ use common::{
         self, aura, buff,
         chat::{KillSource, KillType},
         inventory::item::{AbilityMap, MaterialStatManifest},
+        item::flatten_counted_items,
         loot_owner::LootOwnerKind,
         Alignment, Auras, Body, CharacterState, Energy, Group, Health, HealthChange, Inventory,
         Player, Poise, Pos, SkillSet, Stats,
     },
     event::{EventBus, ServerEvent},
+    lottery::distribute_many,
     outcome::{HealthChangeInfo, Outcome},
     resources::{Secs, Time},
+    spiral::Spiral2d,
     states::utils::StageSection,
     terrain::{Block, BlockKind, TerrainGrid},
     trade::{TradeResult, Trades},
@@ -37,8 +40,7 @@ use common::{
 use common_net::{msg::ServerGeneral, sync::WorldSyncExt};
 use common_state::BlockChange;
 use hashbrown::HashSet;
-use rand::{distributions::WeightedIndex, Rng};
+use rand::Rng;
-use rand_distr::Distribution;
 use specs::{
     join::Join, saveload::MarkerAllocator, Builder, Entity as EcsEntity, Entity, WorldExt,
 };
@@ -427,46 +429,33 @@ pub fn handle_destroy(server: &mut Server, entity: EcsEntity, last_change: Healt
 
         // Decide for a loot drop before turning into a lootbag
 
-        let item = {
+        let items = {
-            let mut item_drop = state.ecs().write_storage::<comp::ItemDrop>();
+            let mut item_drops = state.ecs().write_storage::<comp::ItemDrops>();
-            item_drop.remove(entity).map(|comp::ItemDrop(item)| item)
+            item_drops.remove(entity).map(|comp::ItemDrops(item)| item)
         };
 
-        if let Some(item) = item {
+        if let Some(items) = items {
             let pos = state.ecs().read_storage::<Pos>().get(entity).cloned();
             let vel = state.ecs().read_storage::<comp::Vel>().get(entity).cloned();
             if let Some(pos) = pos {
                 // Remove entries where zero exp was awarded - this happens because some
                 // entities like Object bodies don't give EXP.
-                let _ = exp_awards.drain_filter(|(_, exp, _)| *exp < f32::EPSILON);
+                let mut item_receivers = HashMap::new();
-
+                for (entity, exp, group) in exp_awards {
-                let winner = if exp_awards.is_empty() {
+                    if exp >= f32::EPSILON {
-                    None
+                        let loot_owner = if let Some(group) = group {
-                } else {
-                    // Use the awarded exp per entity as the weight distribution for drop chance
-                    // Creating the WeightedIndex can only fail if there are weights <= 0 or no
-                    // weights, which shouldn't ever happen
-                    let dist = WeightedIndex::new(exp_awards.iter().map(|x| x.1))
-                        .expect("Failed to create WeightedIndex for loot drop chance");
-                    let mut rng = rand::thread_rng();
-                    let winner = exp_awards
-                        .get(dist.sample(&mut rng))
-                        .expect("Loot distribution failed to find a winner");
-                    let (winner, group) = (winner.0, winner.2);
-
-                    if let Some(group) = group {
                             Some(LootOwnerKind::Group(group))
                         } else {
                             let uid = state
                                 .ecs()
                                 .read_storage::<Body>()
-                            .get(winner)
+                                .get(entity)
                                 .and_then(|body| {
                                     // Only humanoids are awarded loot ownership - if the winner
                                     // was a
                                     // non-humanoid NPC the loot will be free-for-all
                                     if matches!(body, Body::Humanoid(_)) {
-                                    Some(state.ecs().read_storage::<Uid>().get(winner).cloned())
+                                        Some(state.ecs().read_storage::<Uid>().get(entity).cloned())
                                     } else {
                                         None
                                     }
@@ -474,25 +463,54 @@ pub fn handle_destroy(server: &mut Server, entity: EcsEntity, last_change: Healt
                                 .flatten();
 
                             uid.map(LootOwnerKind::Player)
-                    }
                         };
 
+                        *item_receivers.entry(loot_owner).or_insert(0.0) += exp;
+                    }
+                }
+
+                if !item_receivers.is_empty() {
+                    let msm = &MaterialStatManifest::load().read();
+                    let ability_map = &AbilityMap::load().read();
+                    let mut item_offset_spiral = Spiral2d::new();
+
+                    let mut rng = rand::thread_rng();
+                    distribute_many(
+                        item_receivers
+                            .iter()
+                            .map(|(loot_owner, weight)| (*weight, *loot_owner)),
+                        &mut rng,
+                        &items,
+                        |(amount, _)| *amount,
+                        |(_, item), loot_owner, count| {
+                            for item in item.stacked_duplicates(ability_map, msm, count) {
+                                let offset = item_offset_spiral
+                                    .next()
+                                    .map(|offset| offset.as_::<f32>() * 0.25)
+                                    .unwrap_or_default();
                                 let item_drop_entity = state
-                    .create_item_drop(Pos(pos.0 + Vec3::unit_z() * 0.25), item)
+                                    .create_item_drop(
+                                        Pos(pos.0 + Vec3::unit_z() * 0.25 + offset),
+                                        item,
+                                    )
                                     .maybe_with(vel)
                                     .build();
-
+                                if let Some(loot_owner) = loot_owner {
-                // If there was a loot winner, assign them as the owner of the loot. There will
+                                    debug!(
-                // not be a loot winner when an entity dies to environment damage and such so
+                                        "Assigned UID {loot_owner:?} as the winner for the loot \
-                // the loot will be free-for-all.
+                                         drop"
-                if let Some(uid) = winner {
+                                    );
-                    debug!("Assigned UID {:?} as the winner for the loot drop", uid);
+                                    if let Err(err) = state
-
-                    state
                                         .ecs()
                                         .write_storage::<LootOwner>()
-                        .insert(item_drop_entity, LootOwner::new(uid))
+                                        .insert(item_drop_entity, LootOwner::new(loot_owner))
-                        .unwrap();
+                                    {
+                                        error!("Failed to set loot owner on item drop: {err}");
+                                    };
+                                }
+                            }
+                        },
+                    );
                 }
             } else {
                 error!(
@@ -1080,7 +1098,10 @@ pub fn handle_bonk(server: &mut Server, pos: Vec3<f32>, owner: Option<Uid>, targ
             {
                 drop(terrain);
                 drop(block_change);
-                if let Some(item) = comp::Item::try_reclaim_from_block(block) {
+                if let Some(items) = comp::Item::try_reclaim_from_block(block) {
+                    let msm = &MaterialStatManifest::load().read();
+                    let ability_map = &AbilityMap::load().read();
+                    for item in flatten_counted_items(&items, ability_map, msm) {
                         server
                             .state
                             .create_object(Default::default(), match block.get_sprite() {
@@ -1102,6 +1123,7 @@ pub fn handle_bonk(server: &mut Server, pos: Vec3<f32>, owner: Option<Uid>, targ
                 }
             }
         }
+    }
 }
 
 pub fn handle_aura(server: &mut Server, entity: EcsEntity, aura_change: aura::AuraChange) {

server/src/events/interaction.rs

@@ -8,9 +8,10 @@ use common::{
         agent::{AgentEvent, Sound, SoundKind},
         dialogue::Subject,
         inventory::slot::EquipSlot,
+        item::{flatten_counted_items, MaterialStatManifest},
         loot_owner::LootOwnerKind,
         pet::is_mountable,
-        tool::ToolKind,
+        tool::{AbilityMap, ToolKind},
         Inventory, LootOwner, Pos, SkillGroupKind,
     },
     consts::{MAX_MOUNT_RANGE, SOUND_TRAVEL_DIST_PER_VOLUME},
@@ -178,7 +179,10 @@ pub fn handle_mine_block(
         let block = state.terrain().get(pos).ok().copied();
         if let Some(block) = block.filter(|b| b.mine_tool().map_or(false, |t| Some(t) == tool)) {
             // Drop item if one is recoverable from the block
-            if let Some(mut item) = comp::Item::try_reclaim_from_block(block) {
+            if let Some(items) = comp::Item::try_reclaim_from_block(block) {
+                let msm = &MaterialStatManifest::load().read();
+                let ability_map = &AbilityMap::load().read();
+                let mut items: Vec<_> = flatten_counted_items(&items, ability_map, msm).collect();
                 let maybe_uid = state.ecs().uid_from_entity(entity);
 
                 if let Some(mut skillset) = state
@@ -186,12 +190,17 @@ pub fn handle_mine_block(
                     .write_storage::<comp::SkillSet>()
                     .get_mut(entity)
                 {
-                    if let (Some(tool), Some(uid), Some(exp_reward)) = (
+                    if let (Some(tool), Some(uid), exp_reward @ 1..) = (
                         tool,
                         maybe_uid,
-                        item.item_definition_id()
+                        items
-                            .itemdef_id()
+                            .iter()
-                            .and_then(|id| RESOURCE_EXPERIENCE_MANIFEST.read().0.get(id).copied()),
+                            .filter_map(|item| {
+                                item.item_definition_id().itemdef_id().and_then(|id| {
+                                    RESOURCE_EXPERIENCE_MANIFEST.read().0.get(id).copied()
+                                })
+                            })
+                            .sum(),
                     ) {
                         let skill_group = SkillGroupKind::Weapon(tool);
                         let outcome_bus = state.ecs().read_resource::<EventBus<Outcome>>();
@@ -230,8 +239,9 @@ pub fn handle_mine_block(
 
                         rng.gen_bool(chance_mod * f64::from(skill_level))
                     };
-
+                    for item in items.iter_mut() {
-                    let double_gain = item.item_definition_id().itemdef_id().map_or(false, |id| {
+                        let double_gain =
+                            item.item_definition_id().itemdef_id().map_or(false, |id| {
                                 (id.contains("mineral.ore.") && need_double_ore(&mut rng))
                                     || (id.contains("mineral.gem.") && need_double_gem(&mut rng))
                             });
@@ -241,6 +251,8 @@ pub fn handle_mine_block(
                             let _ = item.increase_amount(1);
                         }
                     }
+                }
+                for item in items {
                     let item_drop = state
                         .create_item_drop(Default::default(), item)
                         .with(Pos(pos.map(|e| e as f32) + Vec3::new(0.5, 0.5, 0.0)));
@@ -251,6 +263,7 @@ pub fn handle_mine_block(
                     }
                     .build();
                 }
+            }
 
             state.set_block(pos, block.into_vacant());
             state

server/src/events/inventory_manip.rs

@@ -8,8 +8,9 @@ use common::{
     comp::{
         self,
         group::members,
-        item::{self, tool::AbilityMap, MaterialStatManifest},
+        item::{self, flatten_counted_items, tool::AbilityMap, MaterialStatManifest},
         slot::{self, Slot},
+        InventoryUpdate,
     },
     consts::MAX_PICKUP_RANGE,
     recipe::{
@@ -262,7 +263,12 @@ pub fn handle_inventory(server: &mut Server, entity: EcsEntity, manip: comp::Inv
             let mut block_change = ecs.write_resource::<common_state::BlockChange>();
 
             let block = terrain.get(sprite_pos).ok().copied();
-            let mut drop_item = None;
+            let mut drop_items = Vec::new();
+            let mut inventory_updates = ecs.write_storage();
+            let inventory_update = inventory_updates
+                .entry(entity)
+                .expect("We know entity exists since we got its inventory.")
+                .or_insert_with(InventoryUpdate::default);
 
             if let Some(block) = block {
                 if block.is_collectible() && block_change.can_set_block(sprite_pos) {
@@ -275,16 +281,17 @@ pub fn handle_inventory(server: &mut Server, entity: EcsEntity, manip: comp::Inv
                         );
                     }
 
-                    // If there's an item to be reclaimed from the block, add it to the inventory
+                    // If there are items to be reclaimed from the block, add it to the inventory
-                    if let Some(item) = comp::Item::try_reclaim_from_block(block) {
+                    if let Some(items) = comp::Item::try_reclaim_from_block(block) {
+                        let msm = &MaterialStatManifest::load().read();
+                        let ability_map = &AbilityMap::load().read();
+                        for item in flatten_counted_items(&items, ability_map, msm) {
                             // NOTE: We dup the item for message purposes.
-                        let item_msg = item.duplicate(
+                            let item_msg = item.duplicate(ability_map, msm);
-                            &ecs.read_resource::<AbilityMap>(),
+                            match inventory.push(item) {
-                            &ecs.read_resource::<MaterialStatManifest>(),
-                        );
-                        let event = match inventory.push(item) {
                                 Ok(_) => {
-                                if let Some(group_id) = ecs.read_storage::<Group>().get(entity) {
+                                    if let Some(group_id) = ecs.read_storage::<Group>().get(entity)
+                                    {
                                         announce_loot_to_group(
                                             group_id,
                                             ecs,
@@ -295,25 +302,16 @@ pub fn handle_inventory(server: &mut Server, entity: EcsEntity, manip: comp::Inv
                                             ),
                                         );
                                     }
-                                comp::InventoryUpdate::new(InventoryUpdateEvent::Collected(
+                                    inventory_update
-                                    item_msg,
+                                        .push(InventoryUpdateEvent::Collected(item_msg));
-                                ))
                                 },
                                 // The item we created was in some sense "fake" so it's safe to
                                 // drop it.
                                 Err(_) => {
-                                drop_item = Some(item_msg);
+                                    drop_items.push(item_msg);
-                                comp::InventoryUpdate::new(
-                                    InventoryUpdateEvent::BlockCollectFailed {
-                                        pos: sprite_pos,
-                                        reason: CollectFailedReason::InventoryFull,
                                 },
-                                )
+                            }
-                            },
+                        }
-                        };
-                        ecs.write_storage()
-                            .insert(entity, event)
-                            .expect("We know entity exists since we got its inventory.");
                     }
 
                     // We made sure earlier the block was not already modified this tick
@@ -367,10 +365,18 @@ pub fn handle_inventory(server: &mut Server, entity: EcsEntity, manip: comp::Inv
                     );
                 }
             }
+            if !drop_items.is_empty() {
+                inventory_update.push(InventoryUpdateEvent::BlockCollectFailed {
+                    pos: sprite_pos,
+                    reason: CollectFailedReason::InventoryFull,
+                })
+            }
             drop(inventories);
             drop(terrain);
             drop(block_change);
-            if let Some(item) = drop_item {
+            drop(inventory_updates);
+
+            for item in drop_items {
                 state
                     .create_item_drop(Default::default(), item)
                     .with(comp::Pos(

server/src/sys/entity_sync.rs

@@ -356,10 +356,10 @@ impl<'a> System<'a> for Sys {
         // TODO: Sync clients that don't have a position?
 
         // Sync inventories
-        for (inventory, update, client) in (inventories, &inventory_updates, &clients).join() {
+        for (inventory, update, client) in (inventories, &mut inventory_updates, &clients).join() {
             client.send_fallible(ServerGeneral::InventoryUpdate(
                 inventory.clone(),
-                update.event(),
+                update.take_events(),
             ));
         }
 

voxygen/src/hud/mod.rs

@@ -2128,7 +2128,17 @@ impl Hud {
                     .x_y(0.0, 100.0)
                     .position_ingame(over_pos)
                     .set(overitem_id, ui_widgets);
-                } else if let Some(item) = Item::try_reclaim_from_block(*block) {
+                }
+                // TODO: Handle this better. The items returned from `try_reclaim_from_block`
+                // are based on rng. We probably want some function to get only gauranteed items
+                // from `LootSpec`.
+                else if let Some((amount, mut item)) = Item::try_reclaim_from_block(*block)
+                    .into_iter()
+                    .flatten()
+                    .next()
+                {
+                    item.set_amount(amount.clamp(1, item.max_amount()))
+                        .expect("amount >= 1 and <= max_amount is always a valid amount");
                     make_overitem(
                         &item,
                         over_pos,

voxygen/src/session/mod.rs

@@ -321,10 +321,12 @@ impl SessionState {
                             TradeResult::NotEnoughSpace => "hud-trade-result-nospace",
                         })));
                 },
-                client::Event::InventoryUpdated(inv_event) => {
+                client::Event::InventoryUpdated(inv_events) => {
                     let sfx_triggers = self.scene.sfx_mgr.triggers.read();
 
-                    let sfx_trigger_item = sfx_triggers.get_key_value(&SfxEvent::from(&inv_event));
+                    for inv_event in inv_events {
+                        let sfx_trigger_item =
+                            sfx_triggers.get_key_value(&SfxEvent::from(&inv_event));
 
                         match inv_event {
                             InventoryUpdateEvent::Dropped
@@ -358,7 +360,9 @@ impl SessionState {
                                 entity: uid,
                                 reason,
                             } => {
-                            if let Some(entity) = client.state().ecs().entity_from_uid(uid.into()) {
+                                if let Some(entity) =
+                                    client.state().ecs().entity_from_uid(uid.into())
+                                {
                                     self.hud.add_failed_entity_pickup(
                                         entity,
                                         HudCollectFailedReason::from_server_reason(
@@ -377,6 +381,7 @@ impl SessionState {
                             },
                             _ => {},
                         };
+                    }
                 },
                 client::Event::Disconnect => return Ok(TickAction::Disconnect),
                 client::Event::DisconnectionNotification(time) => {