Filter for shulker fill level

src/generated/resources/.cache/cache

@@ -426,20 +426,20 @@ a3a11524cd3515fc01d905767b4b7ea782adaf03 assets/create/blockstates/yellow_seat.j
 7f39521b211441f5c3e06d60c5978cebe16cacfb assets/create/blockstates/zinc_block.json
 b7181bcd8182b2f17088e5aa881f374c9c65470c assets/create/blockstates/zinc_ore.json
 e1d3c02695cbd2ee7bbede97f72941835634a3a5 assets/create/lang/en_ud.json
-3e74ffe81510f420f5f1821808291c0539a14c13 assets/create/lang/en_us.json
+ae6c1882c3049b20409f233d7984fdb6498e1cec assets/create/lang/en_us.json
-82571338ff8edf812ae01f0a5d45c58718374469 assets/create/lang/unfinished/de_de.json
+4d1f84c2fe9d6ed58d9ce555f09b408c3a2d5349 assets/create/lang/unfinished/de_de.json
-6cf3dd48a1708deedbb7ed1029616d932094aa93 assets/create/lang/unfinished/es_es.json
+3fa0debc2eff551c3cbbdf917766e835f803d467 assets/create/lang/unfinished/es_es.json
-a6a3d443ff8ef03952f3e1843a88c91349f52680 assets/create/lang/unfinished/es_mx.json
+6f0034ff2b0a4dc2ef1c390aa76a88e325e17159 assets/create/lang/unfinished/es_mx.json
-c5fff5dee93fcb5eb5576bdf0598139e11b91e5c assets/create/lang/unfinished/fr_fr.json
+a8bf7fa74b00f2ce89d3687e5cee17607f18fa5f assets/create/lang/unfinished/fr_fr.json
-1647117134ac3fcda2110abe13504d3699135f9c assets/create/lang/unfinished/it_it.json
+7633b95d4e27ca0edd77f2d88fcc90e279e09edf assets/create/lang/unfinished/it_it.json
-ed0fd66cfa74b2390f127262242c8385fb699d72 assets/create/lang/unfinished/ja_jp.json
+423b5f8f07b0ca5825c038859f9b506a28982659 assets/create/lang/unfinished/ja_jp.json
-f0b83a1f5377c07e6a3beaa40d13ffe34ae4a269 assets/create/lang/unfinished/ko_kr.json
+20f19b6699ab131e64b73283f1a5dfd4e3d47bb8 assets/create/lang/unfinished/ko_kr.json
-8e2ba058fa004c86d48c869232b85a6a1cdfa7f9 assets/create/lang/unfinished/nl_nl.json
+34435d8e73e3b06095b6dbb77f133e9695c9e39c assets/create/lang/unfinished/nl_nl.json
-0d99e0a375d6d1cf5f00ab48e090f4472fff94ad assets/create/lang/unfinished/pl_pl.json
+f8aafddf029b41c3ad46ed81ff2ccd5289ef2a65 assets/create/lang/unfinished/pl_pl.json
-2d1882cf35f0e09d9e820bd408183d902ed64b50 assets/create/lang/unfinished/pt_br.json
+7f2cf06e9e33f14ca61fd4632df7adfa02b33311 assets/create/lang/unfinished/pt_br.json
-295b171018e6f8c2c488f109f4b080d9019e2ae2 assets/create/lang/unfinished/ru_ru.json
+9f44fe3b87225017fd7975ee8fd5e4ff309e6296 assets/create/lang/unfinished/ru_ru.json
-5f238e588fc997b23cb332fb9a0c3594d6cbfaaf assets/create/lang/unfinished/zh_cn.json
+a99c3e9642cc1748a30e011e0651f89e206175a0 assets/create/lang/unfinished/zh_cn.json
-274a919cbefb9e83213e579dbc8cc0c507f65df8 assets/create/lang/unfinished/zh_tw.json
+79d2ba1dee4c4d677dd9e99878a522bfb575c3f4 assets/create/lang/unfinished/zh_tw.json
 487a511a01b2a4531fb672f917922312db78f958 assets/create/models/block/acacia_window.json
 b48060cba1a382f373a05bf0039054053eccf076 assets/create/models/block/acacia_window_pane_noside.json
 3066db1bf03cffa1a9c7fbacf47ae586632f4eb3 assets/create/models/block/acacia_window_pane_noside_alt.json
@@ -1699,7 +1699,7 @@ d080b1b25e5bc8baf5aee68691b08c7f12ece3b0 assets/create/models/item/windmill_bear
 a80fb25a0b655e76be986b5b49fcb0f03461a1ab assets/create/models/item/zinc_nugget.json
 b1689617190c05ef34bd18456b0c7ae09bb3210f assets/create/models/item/zinc_ore.json
 bbe7fc4aef29420319f59d02d4cd376a78244e70 assets/create/sounds.json
-5d0cc4c0255dc241e61c173b31ddca70c88d08e4 data/create/advancements/aesthetics.json
+0f1b4b980afba9bf2caf583b88e261bba8b10313 data/create/advancements/aesthetics.json
 187921fa131b06721bfaf63f2623a28c141aae9a data/create/advancements/andesite_alloy.json
 0ea2db7173b5be28b289ea7c9a6a0cf5805c60c7 data/create/advancements/andesite_casing.json
 83c046bd200623933545c9e4326f782fb02c87fa data/create/advancements/arm_blaze_burner.json

src/generated/resources/assets/create/lang/en_us.json

@@ -1064,6 +1064,11 @@
 	"create.item_attributes.in_item_group.inverted": "is not in group '%1$s'",
 	"create.item_attributes.added_by": "was added by %1$s",
 	"create.item_attributes.added_by.inverted": "was not added by %1$s",
+	"create.item_attributes.shulker_level": "is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "full",
+	"create.item_attributes.shulker_level.empty": "empty",
+	"create.item_attributes.shulker_level.partial": "partially filled",
 	"create.item_attributes.has_enchant": "is enchanted with %1$s",
 	"create.item_attributes.has_enchant.inverted": "is not enchanted with %1$s",
 	"create.item_attributes.color": "is dyed %1$s",

src/generated/resources/assets/create/lang/unfinished/de_de.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 1119",
+	"_": "Missing Localizations: 1124",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "UNLOCALIZED: is not in group '%1$s'",
 	"create.item_attributes.added_by": "UNLOCALIZED: was added by %1$s",
 	"create.item_attributes.added_by.inverted": "UNLOCALIZED: was not added by %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "UNLOCALIZED: is enchanted with %1$s",
 	"create.item_attributes.has_enchant.inverted": "UNLOCALIZED: is not enchanted with %1$s",
 	"create.item_attributes.color": "UNLOCALIZED: is dyed %1$s",

src/generated/resources/assets/create/lang/unfinished/es_es.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 42",
+	"_": "Missing Localizations: 47",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "no está en el grupo '%1$s'",
 	"create.item_attributes.added_by": "fue añadido por %1$s",
 	"create.item_attributes.added_by.inverted": "no fue añadida por %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "está encantado con %1$s",
 	"create.item_attributes.has_enchant.inverted": "no está encantado con %1$s",
 	"create.item_attributes.color": "Está teñido %1$s",

src/generated/resources/assets/create/lang/unfinished/es_mx.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 1486",
+	"_": "Missing Localizations: 1491",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "UNLOCALIZED: is not in group '%1$s'",
 	"create.item_attributes.added_by": "UNLOCALIZED: was added by %1$s",
 	"create.item_attributes.added_by.inverted": "UNLOCALIZED: was not added by %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "UNLOCALIZED: is enchanted with %1$s",
 	"create.item_attributes.has_enchant.inverted": "UNLOCALIZED: is not enchanted with %1$s",
 	"create.item_attributes.color": "UNLOCALIZED: is dyed %1$s",

src/generated/resources/assets/create/lang/unfinished/fr_fr.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 1371",
+	"_": "Missing Localizations: 1376",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "n'appartient pas à %1$s'",
 	"create.item_attributes.added_by": "a été ajouté par %1$s",
 	"create.item_attributes.added_by.inverted": "n'a pas été ajouté par %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "est enchanté %1$s",
 	"create.item_attributes.has_enchant.inverted": "n'est pas enchenté %1$s",
 	"create.item_attributes.color": "UNLOCALIZED: is dyed %1$s",

src/generated/resources/assets/create/lang/unfinished/it_it.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 899",
+	"_": "Missing Localizations: 904",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "non appartiene a '%1$s'",
 	"create.item_attributes.added_by": "è stato aggiunto da %1$s",
 	"create.item_attributes.added_by.inverted": "non è stato aggiunto da %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "è stato incantato con %1$s",
 	"create.item_attributes.has_enchant.inverted": "non è stato incantato con %1$s",
 	"create.item_attributes.color": "UNLOCALIZED: is dyed %1$s",

src/generated/resources/assets/create/lang/unfinished/ja_jp.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 31",
+	"_": "Missing Localizations: 36",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "%1$sに属していないか",
 	"create.item_attributes.added_by": "%1$sによって追加されたか",
 	"create.item_attributes.added_by.inverted": "%1$sによって追加されていないか",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "エンチャントされているか%1$s",
 	"create.item_attributes.has_enchant.inverted": "エンチャントがされていないか",
 	"create.item_attributes.color": "%1$sで染められているか",

src/generated/resources/assets/create/lang/unfinished/ko_kr.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 277",
+	"_": "Missing Localizations: 282",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "'%1$s' 그룹에 속해 있지 않은",
 	"create.item_attributes.added_by": "%1$s에 의해 추가된",
 	"create.item_attributes.added_by.inverted": "%1$s에 의해 추가되지 않은",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "%1$s 마법이 부여된",
 	"create.item_attributes.has_enchant.inverted": "%1$s 마법이 부여되지 않은",
 	"create.item_attributes.color": "염색된 %1$s",

src/generated/resources/assets/create/lang/unfinished/nl_nl.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 1752",
+	"_": "Missing Localizations: 1757",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "UNLOCALIZED: is not in group '%1$s'",
 	"create.item_attributes.added_by": "UNLOCALIZED: was added by %1$s",
 	"create.item_attributes.added_by.inverted": "UNLOCALIZED: was not added by %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "UNLOCALIZED: is enchanted with %1$s",
 	"create.item_attributes.has_enchant.inverted": "UNLOCALIZED: is not enchanted with %1$s",
 	"create.item_attributes.color": "UNLOCALIZED: is dyed %1$s",

src/generated/resources/assets/create/lang/unfinished/pl_pl.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 241",
+	"_": "Missing Localizations: 246",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "nie jest w grupie \"%1$s\"",
 	"create.item_attributes.added_by": "dodany przez %1$s",
 	"create.item_attributes.added_by.inverted": "niedodany przez %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "posiada zaklęcie %1$s",
 	"create.item_attributes.has_enchant.inverted": "nie posiada zaklęcia %1$s",
 	"create.item_attributes.color": "jest zafarbowane, kolor %1$s",

src/generated/resources/assets/create/lang/unfinished/pt_br.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 1793",
+	"_": "Missing Localizations: 1798",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "UNLOCALIZED: is not in group '%1$s'",
 	"create.item_attributes.added_by": "UNLOCALIZED: was added by %1$s",
 	"create.item_attributes.added_by.inverted": "UNLOCALIZED: was not added by %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "UNLOCALIZED: is enchanted with %1$s",
 	"create.item_attributes.has_enchant.inverted": "UNLOCALIZED: is not enchanted with %1$s",
 	"create.item_attributes.color": "UNLOCALIZED: is dyed %1$s",

src/generated/resources/assets/create/lang/unfinished/ru_ru.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 272",
+	"_": "Missing Localizations: 277",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "не принадлежит '%1$s'",
 	"create.item_attributes.added_by": "был добавлен %1$s",
 	"create.item_attributes.added_by.inverted": "не был добавлен %1$s",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "зачарован на %1$s",
 	"create.item_attributes.has_enchant.inverted": "не зачарован на %1$s",
 	"create.item_attributes.color": "Покрашено в %1$s",

src/generated/resources/assets/create/lang/unfinished/zh_cn.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 282",
+	"_": "Missing Localizations: 287",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "不属于%1$s",
 	"create.item_attributes.added_by": "由%1$s添加",
 	"create.item_attributes.added_by.inverted": "不是由%1$s添加",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "有附魔效果%1$s",
 	"create.item_attributes.has_enchant.inverted": "没有附魔效果%1$s",
 	"create.item_attributes.color": "染色为%1$s",

src/generated/resources/assets/create/lang/unfinished/zh_tw.json

@@ -1,5 +1,5 @@
 {
-	"_": "Missing Localizations: 277",
+	"_": "Missing Localizations: 282",
 
 	"_": "->------------------------]  Game Elements  [------------------------<-",
 
@@ -1065,6 +1065,11 @@
 	"create.item_attributes.in_item_group.inverted": "不屬於%1$s",
 	"create.item_attributes.added_by": "由%1$s添加",
 	"create.item_attributes.added_by.inverted": "不是由%1$s添加",
+	"create.item_attributes.shulker_level": "UNLOCALIZED: is shulker %1$s",
+	"create.item_attributes.shulker_level.inverted": "UNLOCALIZED: is shulker not %1$s",
+	"create.item_attributes.shulker_level.full": "UNLOCALIZED: full",
+	"create.item_attributes.shulker_level.empty": "UNLOCALIZED: empty",
+	"create.item_attributes.shulker_level.partial": "UNLOCALIZED: partially filled",
 	"create.item_attributes.has_enchant": "有附魔效果%1$s",
 	"create.item_attributes.has_enchant.inverted": "沒有附魔效果%1$s",
 	"create.item_attributes.color": "已被染色成 %1$s",

src/generated/resources/data/create/advancements/aesthetics.json

@@ -28,8 +28,8 @@
       "trigger": "create:bracket_apply",
       "conditions": {
         "accepted_entries": [
-          "create:large_cogwheel",
+          "create:cogwheel",
-          "create:cogwheel"
+          "create:large_cogwheel"
         ]
       }
     },

src/main/java/com/simibubi/create/content/logistics/item/filter/ItemAttribute.java

@@ -9,6 +9,8 @@ import java.util.function.BiPredicate;
 import java.util.function.Predicate;
 import java.util.stream.Collectors;
 
+import com.simibubi.create.content.logistics.item.filter.attribute.ShulkerFillLevelAttribute;
+
 import org.apache.commons.lang3.StringUtils;
 
 import com.simibubi.create.AllRecipeTypes;
@@ -56,6 +58,7 @@ public interface ItemAttribute {
 	static ItemAttribute inItemGroup = register(new InItemGroup(ItemGroup.MISC));
 	static ItemAttribute addedBy = register(new InItemGroup.AddedBy("dummy"));
 	static ItemAttribute hasEnchant = register(EnchantAttribute.EMPTY);
+	static ItemAttribute shulkerFillLevel = register(ShulkerFillLevelAttribute.EMPTY);
 	static ItemAttribute hasColor = register(ColorAttribute.EMPTY);
 	static ItemAttribute hasFluid = register(FluidContentsAttribute.EMPTY);
 	static ItemAttribute hasName = register(new ItemNameAttribute("dummy"));

src/main/java/com/simibubi/create/content/logistics/item/filter/attribute/ShulkerFillLevelAttribute.java

@@ -0,0 +1,109 @@
+package com.simibubi.create.content.logistics.item.filter.attribute;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
+import javax.annotation.Nullable;
+
+import com.simibubi.create.content.logistics.item.filter.ItemAttribute;
+import com.simibubi.create.foundation.utility.Lang;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.ShulkerBoxBlock;
+import net.minecraft.inventory.ItemStackHelper;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.util.NonNullList;
+
+public class ShulkerFillLevelAttribute implements ItemAttribute {
+	public static final ShulkerFillLevelAttribute EMPTY = new ShulkerFillLevelAttribute(null);
+
+	private final ShulkerLevels levels;
+
+	public ShulkerFillLevelAttribute(ShulkerLevels levels) {
+		this.levels = levels;
+	}
+
+	@Override
+	public boolean appliesTo(ItemStack stack) {
+		return levels != null && levels.canApply(stack);
+	}
+
+	@Override
+	public List<ItemAttribute> listAttributesOf(ItemStack stack) {
+		return Arrays.stream(ShulkerLevels.values())
+				.filter(shulkerLevels -> shulkerLevels.canApply(stack))
+				.map(ShulkerFillLevelAttribute::new)
+				.collect(Collectors.toList());
+	}
+
+	@Override
+	public String getTranslationKey() {
+		return "shulker_level";
+	}
+
+	@Override
+	public Object[] getTranslationParameters() {
+		String parameter = "";
+		if (levels != null)
+			parameter = Lang.translate("item_attributes." + getTranslationKey() + "." + levels.key).getString();
+		return new Object[]{parameter};
+	}
+
+	@Override
+	public void writeNBT(CompoundNBT nbt) {
+		if (levels != null)
+			nbt.putString("id", levels.key);
+	}
+
+	@Override
+	public ItemAttribute readNBT(CompoundNBT nbt) {
+		return nbt.contains("id") ? new ShulkerFillLevelAttribute(ShulkerLevels.fromKey(nbt.getString("id"))) : EMPTY;
+	}
+
+	enum ShulkerLevels {
+		EMPTY("empty", amount -> amount == 0),
+		PARTIAL("partial", amount -> amount > 0 && amount < Integer.MAX_VALUE),
+		FULL("full", amount -> amount == Integer.MAX_VALUE);
+
+		private final Predicate<Integer> requiredSize;
+		private final String key;
+
+		ShulkerLevels(String key, Predicate<Integer> requiredSize) {
+			this.key = key;
+			this.requiredSize = requiredSize;
+		}
+
+		@Nullable
+		public static ShulkerLevels fromKey(String key) {
+			return Arrays.stream(values()).filter(shulkerLevels -> shulkerLevels.key.equals(key)).findFirst().orElse(null);
+		}
+
+		private static boolean isShulker(ItemStack stack) {
+			return Block.getBlockFromItem(stack.getItem()) instanceof ShulkerBoxBlock;
+		}
+
+		public boolean canApply(ItemStack testStack) {
+			if (!isShulker(testStack))
+				return false;
+			CompoundNBT compoundnbt = testStack.getChildTag("BlockEntityTag");
+			if (compoundnbt == null)
+				return requiredSize.test(0);
+			if (compoundnbt.contains("LootTable", 8))
+				return false;
+			if (compoundnbt.contains("Items", 9)) {
+				int rawSize = compoundnbt.getList("Items", 10).size();
+				if (rawSize < 27)
+					return requiredSize.test(rawSize);
+
+				NonNullList<ItemStack> inventory = NonNullList.withSize(27, ItemStack.EMPTY);
+				ItemStackHelper.loadAllItems(compoundnbt, inventory);
+				boolean isFull = inventory.stream().allMatch(itemStack -> !itemStack.isEmpty() && itemStack.getCount() == itemStack.getMaxStackSize());
+				return requiredSize.test(isFull ? Integer.MAX_VALUE : rawSize);
+			}
+			return requiredSize.test(0);
+		}
+	}
+}

src/main/resources/assets/create/lang/default/messages.json

@@ -391,6 +391,12 @@
 	"create.item_attributes.added_by": "was added by %1$s",
 	"create.item_attributes.added_by.inverted": "was not added by %1$s",
 
+  "create.item_attributes.shulker_level": "is shulker %1$s",
+  "create.item_attributes.shulker_level.inverted": "is shulker not %1$s",
+  "create.item_attributes.shulker_level.full": "full",
+  "create.item_attributes.shulker_level.empty": "empty",
+  "create.item_attributes.shulker_level.partial": "partially filled",
+
 	"create.item_attributes.has_enchant": "is enchanted with %1$s",
 	"create.item_attributes.has_enchant.inverted": "is not enchanted with %1$s",
 	"create.item_attributes.color": "is dyed %1$s",
@@ -504,7 +510,7 @@
 	"create.crafting_blueprint.manually_assigned": "Manually assigned",
 	"create.crafting_blueprint.secondary_display_slot": "Secondary Display Slot",
 	"create.crafting_blueprint.optional": "Optional",
-	
+
 	"create.potato_cannon.ammo.attack_damage": "%1$s Attack Damage",
 	"create.potato_cannon.ammo.reload_ticks": "%1$s Reload Ticks",
 	"create.potato_cannon.ammo.knockback": "%1$s Knockback",