Start Entity abstraction, add some missing entities.

src/main/java/fr/themode/demo/entity/ChickenCreature.java

@@ -5,7 +5,7 @@ import net.minestom.server.entity.LivingEntity;
 import net.minestom.server.entity.ai.goal.MeleeAttackGoal;
 import net.minestom.server.entity.ai.target.ClosestEntityTarget;
 import net.minestom.server.entity.damage.DamageType;
-import net.minestom.server.entity.type.EntityChicken;
+import net.minestom.server.entity.type.animal.EntityChicken;
 import net.minestom.server.event.entity.EntityAttackEvent;
 import net.minestom.server.utils.Position;
 import net.minestom.server.utils.Vector;

src/main/java/fr/themode/demo/entity/ZombieCreature.java

@@ -1,7 +1,7 @@
 package fr.themode.demo.entity;
 
 import net.minestom.server.entity.ai.goal.RandomLookAroundGoal;
-import net.minestom.server.entity.type.EntityZombie;
+import net.minestom.server.entity.type.monster.EntityZombie;
 import net.minestom.server.utils.Position;
 
 public class ZombieCreature extends EntityZombie {

src/main/java/net/minestom/server/entity/hologram/Hologram.java

@@ -3,7 +3,7 @@ package net.minestom.server.entity.hologram;
 import net.minestom.server.Viewable;
 import net.minestom.server.chat.ColoredText;
 import net.minestom.server.entity.Player;
-import net.minestom.server.entity.type.EntityArmorStand;
+import net.minestom.server.entity.type.decoration.EntityArmorStand;
 import net.minestom.server.instance.Instance;
 import net.minestom.server.utils.Position;
 import net.minestom.server.utils.validate.Check;

src/main/java/net/minestom/server/entity/type/Animal.java

@@ -0,0 +1,4 @@
+package net.minestom.server.entity.type;
+
+public interface Animal {
+}

src/main/java/net/minestom/server/entity/type/Constructable.java

@@ -0,0 +1,4 @@
+package net.minestom.server.entity.type;
+
+public interface Constructable {
+}

src/main/java/net/minestom/server/entity/type/Monster.java

@@ -0,0 +1,4 @@
+package net.minestom.server.entity.type;
+
+public interface Monster {
+}

src/main/java/net/minestom/server/entity/type/Projectile.java

@@ -0,0 +1,4 @@
+package net.minestom.server.entity.type;
+
+public interface Projectile {
+}

src/main/java/net/minestom/server/entity/type/TameableAnimal.java

@@ -0,0 +1,4 @@
+package net.minestom.server.entity.type;
+
+public interface TameableAnimal extends Animal {
+}

src/main/java/net/minestom/server/entity/type/Vehicle.java

@@ -0,0 +1,4 @@
+package net.minestom.server.entity.type;
+
+public interface Vehicle {
+}

src/main/java/net/minestom/server/entity/type/ambient/EntityBat.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.ambient;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityBat extends EntityCreature {
+public class EntityBat extends EntityCreature implements Animal {
 
     private boolean hanging;
 

src/main/java/net/minestom/server/entity/type/animal/EntityBee.java

@@ -0,0 +1,13 @@
+package net.minestom.server.entity.type.animal;
+
+import net.minestom.server.entity.EntityCreature;
+import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
+import net.minestom.server.utils.Position;
+
+public class EntityBee extends EntityCreature implements Animal {
+    public EntityBee(Position spawnPosition) {
+        super(EntityType.BEE, spawnPosition);
+        setBoundingBox(0.7f,0.6f,0.7f);
+    }
+}

src/main/java/net/minestom/server/entity/type/animal/EntityCat.java

@@ -0,0 +1,13 @@
+package net.minestom.server.entity.type.animal;
+
+import net.minestom.server.entity.EntityCreature;
+import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.TameableAnimal;
+import net.minestom.server.utils.Position;
+
+public class EntityCat extends EntityCreature implements TameableAnimal {
+    public EntityCat(Position spawnPosition) {
+        super(EntityType.CAT, spawnPosition);
+        setBoundingBox(0.6f, 0.7f, 0.6f);
+    }
+}

src/main/java/net/minestom/server/entity/type/animal/EntityChicken.java

@@ -1,10 +1,11 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.animal;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
 import net.minestom.server.utils.Position;
 
-public class EntityChicken extends EntityCreature {
+public class EntityChicken extends EntityCreature implements Animal {
     public EntityChicken(Position spawnPosition) {
         super(EntityType.CHICKEN, spawnPosition);
         setBoundingBox(0.4f, 0.7f, 0.4f);

src/main/java/net/minestom/server/entity/type/animal/EntityCow.java

@@ -1,10 +1,11 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.animal;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
 import net.minestom.server.utils.Position;
 
-public class EntityCow extends EntityCreature {
+public class EntityCow extends EntityCreature implements Animal {
     public EntityCow(Position spawnPosition) {
         super(EntityType.COW, spawnPosition);
         setBoundingBox(0.9f, 1.4f, 0.9f);

src/main/java/net/minestom/server/entity/type/animal/EntityDolphin.java

@@ -0,0 +1,13 @@
+package net.minestom.server.entity.type.animal;
+
+import net.minestom.server.entity.EntityCreature;
+import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
+import net.minestom.server.utils.Position;
+
+public class EntityDolphin extends EntityCreature implements Animal {
+    public EntityDolphin(Position spawnPosition) {
+        super(EntityType.DOLPHIN, spawnPosition);
+        setBoundingBox(0.6f,0.6f,0.9f);
+    }
+}

src/main/java/net/minestom/server/entity/type/animal/EntityFox.java

@@ -0,0 +1,13 @@
+package net.minestom.server.entity.type.animal;
+
+import net.minestom.server.entity.EntityCreature;
+import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
+import net.minestom.server.utils.Position;
+
+public class EntityFox extends EntityCreature implements Animal {
+    public EntityFox(Position spawnPosition) {
+        super(EntityType.FOX, spawnPosition);
+        setBoundingBox(0.6f, 0.7f, 0.6f);
+    }
+}

src/main/java/net/minestom/server/entity/type/animal/EntityMooshroom.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.animal;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityMooshroom extends EntityCreature {
+public class EntityMooshroom extends EntityCreature implements Animal {
 
     private MooshroomType mooshroomType;
 

src/main/java/net/minestom/server/entity/type/animal/EntityOcelot.java

@@ -0,0 +1,13 @@
+package net.minestom.server.entity.type.animal;
+
+import net.minestom.server.entity.EntityCreature;
+import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
+import net.minestom.server.utils.Position;
+
+public class EntityOcelot extends EntityCreature implements Animal {
+    public EntityOcelot(Position spawnPosition) {
+        super(EntityType.OCELOT, spawnPosition);
+        setBoundingBox(0.6f, 0.7f, 0.6f);
+    }
+}

src/main/java/net/minestom/server/entity/type/animal/EntityPanda.java

@@ -0,0 +1,13 @@
+package net.minestom.server.entity.type.animal;
+
+import net.minestom.server.entity.EntityCreature;
+import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
+import net.minestom.server.utils.Position;
+
+public class EntityPanda extends EntityCreature implements Animal {
+    public EntityPanda(Position spawnPosition) {
+        super(EntityType.PANDA, spawnPosition);
+        setBoundingBox(1.3f, 1.25f, 1.3f);
+    }
+}

src/main/java/net/minestom/server/entity/type/animal/EntityPig.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.animal;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityPig extends EntityCreature {
+public class EntityPig extends EntityCreature implements Animal {
 
     private boolean saddle;
 

src/main/java/net/minestom/server/entity/type/animal/EntityPolarBear.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.animal;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityPolarBear extends EntityCreature {
+public class EntityPolarBear extends EntityCreature implements Animal {
 
     private boolean standingUp;
 

src/main/java/net/minestom/server/entity/type/animal/EntityRabbit.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.animal;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Animal;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityRabbit extends EntityCreature {
+public class EntityRabbit extends EntityCreature implements Animal {
 
     private int type;
 

src/main/java/net/minestom/server/entity/type/decoration/EntityArmorStand.java

@@ -1,4 +1,4 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.decoration;
 
 import net.minestom.server.entity.EntityType;
 import net.minestom.server.entity.ObjectEntity;

src/main/java/net/minestom/server/entity/type/decoration/EntityItemFrame.java

@@ -1,4 +1,4 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.decoration;
 
 import net.minestom.server.entity.EntityType;
 import net.minestom.server.entity.ObjectEntity;

src/main/java/net/minestom/server/entity/type/monster/EntityBlaze.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityBlaze extends EntityCreature {
+public class EntityBlaze extends EntityCreature implements Monster {
 
     public EntityBlaze(Position spawnPosition) {
         super(EntityType.BLAZE, spawnPosition);

src/main/java/net/minestom/server/entity/type/monster/EntityCaveSpider.java

@@ -1,12 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.utils.Position;
 
-public class EntityCaveSpider extends EntityCreature {
+public class EntityCaveSpider extends EntityCreature implements Monster {
     public EntityCaveSpider(Position spawnPosition) {
         super(EntityType.CAVE_SPIDER, spawnPosition);
         setBoundingBox(0.7f, 0.5f, 0.7f);
+        setEyeHeight(0.45f);
     }
 }

src/main/java/net/minestom/server/entity/type/monster/EntityCreeper.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityCreeper extends EntityCreature {
+public class EntityCreeper extends EntityCreature implements Monster {
 
     private CreeperState creeperState;
     private boolean charged;

src/main/java/net/minestom/server/entity/type/monster/EntityEndermite.java

@@ -1,12 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.utils.Position;
 
-public class EntityEndermite extends EntityCreature {
+public class EntityEndermite extends EntityCreature implements Monster {
     public EntityEndermite(Position spawnPosition) {
         super(EntityType.ENDERMITE, spawnPosition);
         setBoundingBox(0.4f, 0.3f, 0.4f);
+        setEyeHeight(0.13f);
     }
 }

src/main/java/net/minestom/server/entity/type/monster/EntityGhast.java

@@ -1,19 +1,21 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityGhast extends EntityCreature {
+public class EntityGhast extends EntityCreature implements Monster {
 
     private boolean attacking;
 
     public EntityGhast(Position spawnPosition) {
         super(EntityType.GHAST, spawnPosition);
         setBoundingBox(4, 4, 4);
+        setEyeHeight(2.6f);
     }
 
     @Override

src/main/java/net/minestom/server/entity/type/monster/EntityGiant.java

@@ -1,10 +1,11 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.utils.Position;
 
-public class EntityGiant extends EntityCreature {
+public class EntityGiant extends EntityCreature implements Monster {
     public EntityGiant(Position spawnPosition) {
         super(EntityType.GIANT, spawnPosition);
         setBoundingBox(3.6f, 10.8f, 3.6f);

src/main/java/net/minestom/server/entity/type/monster/EntityGuardian.java

@@ -1,14 +1,15 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.Entity;
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityGuardian extends EntityCreature {
+public class EntityGuardian extends EntityCreature implements Monster {
 
     private boolean retractingSpikes;
     private Entity target;

src/main/java/net/minestom/server/entity/type/monster/EntityPhantom.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityPhantom extends EntityCreature {
+public class EntityPhantom extends EntityCreature implements Monster {
 
     private int size;
 

src/main/java/net/minestom/server/entity/type/monster/EntitySilverfish.java

@@ -1,12 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.utils.Position;
 
-public class EntitySilverfish extends EntityCreature {
+public class EntitySilverfish extends EntityCreature implements Monster {
     public EntitySilverfish(Position spawnPosition) {
         super(EntityType.SILVERFISH, spawnPosition);
         setBoundingBox(0.4f, 0.3f, 0.4f);
+        setEyeHeight(0.13f);
     }
 }

src/main/java/net/minestom/server/entity/type/monster/EntitySlime.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntitySlime extends EntityCreature {
+public class EntitySlime extends EntityCreature implements Monster {
 
     private int size;
 

src/main/java/net/minestom/server/entity/type/monster/EntitySpider.java

@@ -1,19 +1,21 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntitySpider extends EntityCreature {
+public class EntitySpider extends EntityCreature implements Monster {
 
     private boolean climbing;
 
     public EntitySpider(Position spawnPosition) {
         super(EntityType.SPIDER, spawnPosition);
         setBoundingBox(1.4f, 0.9f, 1.4f);
+        setEyeHeight(0.65f);
     }
 
     @Override

src/main/java/net/minestom/server/entity/type/monster/EntityWitch.java

@@ -1,19 +1,21 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityWitch extends EntityCreature {
+public class EntityWitch extends EntityCreature implements Monster {
 
     private boolean drinkingPotion;
 
     public EntityWitch(Position spawnPosition) {
         super(EntityType.WITCH, spawnPosition);
         setBoundingBox(0.6f, 1.95f, 0.6f);
+        setEyeHeight(1.62f);
     }
 
     @Override

src/main/java/net/minestom/server/entity/type/monster/EntityZombie.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityZombie extends EntityCreature {
+public class EntityZombie extends EntityCreature implements Monster {
 
     private boolean baby;
     private boolean becomingDrowned;
@@ -15,7 +16,6 @@ public class EntityZombie extends EntityCreature {
     public EntityZombie(Position spawnPosition) {
         super(EntityType.ZOMBIE, spawnPosition);
         setBoundingBox(0.6f, 1.95f, 0.6f);
-        setEyeHeight(1.74f);
     }
 
     @Override
@@ -58,4 +58,9 @@ public class EntityZombie extends EntityCreature {
         this.becomingDrowned = becomingDrowned;
         sendMetadataIndex(17);
     }
+
+    @Override
+    public float getEyeHeight() {
+        return isBaby() ? 0.93f : 1.74f;
+    }
 }

src/main/java/net/minestom/server/entity/type/monster/EntityZombifiedPiglin.java

@@ -1,18 +1,19 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.monster;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Monster;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityPigZombie extends EntityCreature {
+public class EntityZombifiedPiglin extends EntityCreature implements Monster {
 
     private boolean baby;
     private boolean becomingDrowned;
 
-    public EntityPigZombie(Position spawnPosition) {
+    public EntityZombifiedPiglin(Position spawnPosition) {
         super(EntityType.ZOMBIFIED_PIGLIN, spawnPosition);
         setBoundingBox(0.6f, 1.95f, 0.6f);
     }
@@ -68,4 +69,8 @@ public class EntityPigZombie extends EntityCreature {
         sendMetadataIndex(17);
     }
 
+    @Override
+    public float getEyeHeight() {
+        return isBaby() ? 0.93f : 1.74f;
+    }
 }

src/main/java/net/minestom/server/entity/type/other/EntityAreaEffectCloud.java

@@ -1,4 +1,4 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.other;
 
 import net.minestom.server.entity.EntityType;
 import net.minestom.server.entity.ObjectEntity;

src/main/java/net/minestom/server/entity/type/other/EntityIronGolem.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.other;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Constructable;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityIronGolem extends EntityCreature {
+public class EntityIronGolem extends EntityCreature implements Constructable {
 
     private boolean playerCreated;
 

src/main/java/net/minestom/server/entity/type/other/EntitySnowman.java

@@ -1,13 +1,14 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.other;
 
 import net.minestom.server.entity.EntityCreature;
 import net.minestom.server.entity.EntityType;
+import net.minestom.server.entity.type.Constructable;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntitySnowman extends EntityCreature {
+public class EntitySnowman extends EntityCreature implements Constructable {
 
     private boolean pumpkinHat;
 

src/main/java/net/minestom/server/entity/type/projectile/EntityEyeOfEnder.java

@@ -1,7 +1,8 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.projectile;
 
 import net.minestom.server.entity.EntityType;
 import net.minestom.server.entity.ObjectEntity;
+import net.minestom.server.entity.type.Projectile;
 import net.minestom.server.item.ItemStack;
 import net.minestom.server.item.Material;
 import net.minestom.server.network.packet.PacketWriter;
@@ -9,7 +10,7 @@ import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityEyeOfEnder extends ObjectEntity {
+public class EntityEyeOfEnder extends ObjectEntity implements Projectile {
 
     private ItemStack itemStack;
 

src/main/java/net/minestom/server/entity/type/projectile/EntityPotion.java

@@ -1,14 +1,15 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.projectile;
 
 import net.minestom.server.entity.EntityType;
 import net.minestom.server.entity.ObjectEntity;
+import net.minestom.server.entity.type.Projectile;
 import net.minestom.server.item.ItemStack;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 
 import java.util.function.Consumer;
 
-public class EntityPotion extends ObjectEntity {
+public class EntityPotion extends ObjectEntity implements Projectile {
 
     private ItemStack potion;
 

src/main/java/net/minestom/server/entity/type/vehicle/EntityBoat.java

@@ -1,14 +1,15 @@
-package net.minestom.server.entity.type;
+package net.minestom.server.entity.type.vehicle;
 
 import net.minestom.server.entity.EntityType;
 import net.minestom.server.entity.ObjectEntity;
+import net.minestom.server.entity.type.Vehicle;
 import net.minestom.server.network.packet.PacketWriter;
 import net.minestom.server.utils.Position;
 import net.minestom.server.utils.validate.Check;
 
 import java.util.function.Consumer;
 
-public class EntityBoat extends ObjectEntity {
+public class EntityBoat extends ObjectEntity implements Vehicle {
 
     private BoatType boatType;
     private boolean leftPaddleTurning;

src/main/java/net/minestom/server/listener/PlayerVehicleListener.java

@@ -2,7 +2,7 @@ package net.minestom.server.listener;
 
 import net.minestom.server.entity.Entity;
 import net.minestom.server.entity.Player;
-import net.minestom.server.entity.type.EntityBoat;
+import net.minestom.server.entity.type.vehicle.EntityBoat;
 import net.minestom.server.network.packet.client.play.ClientSteerBoatPacket;
 import net.minestom.server.network.packet.client.play.ClientSteerVehiclePacket;
 import net.minestom.server.network.packet.client.play.ClientVehicleMovePacket;