feat(game.entity): entity type predicates

src/main/java/org/auioc/mcmod/arnicalib/game/entity/EntityTypePredicates.java

@@ -0,0 +1,25 @@
+package org.auioc.mcmod.arnicalib.game.entity;
+
+import java.util.function.Predicate;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.entity.MobCategory;
+
+public class EntityTypePredicates {
+
+    public static final Predicate<EntityType<?>> IS_FRIENDLY = (type) -> getCategory(type).isFriendly();
+    public static final Predicate<EntityType<?>> IS_PERSISTENT = (type) -> getCategory(type).isPersistent();
+
+    public static final Predicate<EntityType<?>> IS_MISC = (type) -> getCategory(type) == MobCategory.MISC;
+    public static final Predicate<EntityType<?>> IS_MONSTER = (type) -> getCategory(type) == MobCategory.MONSTER;
+    public static final Predicate<EntityType<?>> IS_CREATURE = (type) -> getCategory(type) == MobCategory.CREATURE;
+    public static final Predicate<EntityType<?>> IS_AMBIENT = (type) -> getCategory(type) == MobCategory.AMBIENT;
+    public static final Predicate<EntityType<?>> IS_AXOLOTLS = (type) -> getCategory(type) == MobCategory.AXOLOTLS;
+    public static final Predicate<EntityType<?>> IS_UNDERGROUND_WATER_CREATURE = (type) -> getCategory(type) == MobCategory.UNDERGROUND_WATER_CREATURE;
+    public static final Predicate<EntityType<?>> IS_WATER_CREATURE = (type) -> getCategory(type) == MobCategory.WATER_CREATURE;
+    public static final Predicate<EntityType<?>> IS_WATER_AMBIENT = (type) -> getCategory(type) == MobCategory.WATER_AMBIENT;
+
+    private static MobCategory getCategory(EntityType<?> entityType) {
+        return entityType.getCategory();
+    }
+
+}