From dcdbe8575fcc0fa2d961a697976ff5e7ac1c3c62 Mon Sep 17 00:00:00 2001
From: Tofaa2 <tofik.adigozalov@gmail.com>
Date: Thu, 23 May 2024 23:04:54 +0400
Subject: [PATCH] Attributes

---
 .idea/gradle.xml                              |   1 +
 .idea/workspace.xml                           | 102 ++++++++++--------
 .../java/me/tofaa/entitylib/EntityLib.java    |   7 +-
 .../java/me/tofaa/entitylib/Platform.java     |   7 +-
 .../entitylib/meta/MetaOffsetConverter.java   |   4 +-
 .../storage/ByteEntitySerializer.java         |  17 +++
 .../entitylib/storage/EntitySerializer.java   |  16 +++
 .../entitylib/storage/EntityStorage.java      |  14 +++
 .../entitylib/storage/FSEntityStorage.java    |  18 ++++
 .../tofaa/entitylib/utils/GithubUpdater.java  |   9 +-
 .../entitylib/wrapper/WrapperEntity.java      |   6 +-
 .../wrapper/WrapperEntityAttributes.java      |  85 +++++++++++++++
 .../wrapper/WrapperLivingEntity.java          |  12 ++-
 .../entitylib/common/AbstractPlatform.java    |   1 +
 model-engine-addon/build.gradle               |   8 ++
 .../entitylib/modelengine/ELibBaseEntity.java |   5 +
 settings.gradle                               |   1 +
 test-plugin/build.gradle                      |  13 ++-
 .../testentitylib/TestEntityLibPlugin.java    |   4 +-
 .../testentitylib/TestMassivePigCommand.java  |  46 ++++++++
 20 files changed, 302 insertions(+), 74 deletions(-)
 create mode 100644 api/src/main/java/me/tofaa/entitylib/storage/ByteEntitySerializer.java
 create mode 100644 api/src/main/java/me/tofaa/entitylib/storage/EntitySerializer.java
 create mode 100644 api/src/main/java/me/tofaa/entitylib/storage/EntityStorage.java
 create mode 100644 api/src/main/java/me/tofaa/entitylib/storage/FSEntityStorage.java
 create mode 100644 api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntityAttributes.java
 create mode 100644 model-engine-addon/build.gradle
 create mode 100644 model-engine-addon/src/main/java/me/tofaa/entitylib/modelengine/ELibBaseEntity.java
 create mode 100644 test-plugin/src/main/java/me/tofaa/testentitylib/TestMassivePigCommand.java

diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 89c90fa..5ec86af 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -11,6 +11,7 @@
             <option value="$PROJECT_DIR$/api" />
             <option value="$PROJECT_DIR$/code-gen" />
             <option value="$PROJECT_DIR$/common" />
+            <option value="$PROJECT_DIR$/model-engine-addon" />
             <option value="$PROJECT_DIR$/platforms" />
             <option value="$PROJECT_DIR$/platforms/spigot" />
             <option value="$PROJECT_DIR$/platforms/velocity" />
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index fd98699..5aab277 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -5,17 +5,23 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="9d5d9b6f-43c8-41a4-bb42-a66ffc96c9b0" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/utils/GithubUpdater.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/storage/ByteEntitySerializer.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/storage/EntitySerializer.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/storage/EntityStorage.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/storage/FSEntityStorage.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/wrapper/PerViewerEntity.java" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/model-engine-addon/build.gradle" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/model-engine-addon/src/main/java/me/tofaa/entitylib/modelengine/ELibBaseEntity.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/gradle.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/gradle.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/api/build.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/api/build.gradle" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/APIConfig.java" beforeDir="false" afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/APIConfig.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/build.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/build.gradle" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/platforms/spigot/build.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/platforms/spigot/build.gradle" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/platforms/spigot/src/main/java/me/tofaa/entitylib/spigot/SpigotEntityLibPlatform.java" beforeDir="false" afterPath="$PROJECT_DIR$/platforms/spigot/src/main/java/me/tofaa/entitylib/spigot/SpigotEntityLibPlatform.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/platforms/velocity/build.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/platforms/velocity/build.gradle" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/platforms/velocity/src/main/java/me/tofaa/entitylib/velocity/VelocityEntityLibPlatform.java" beforeDir="false" afterPath="$PROJECT_DIR$/platforms/velocity/src/main/java/me/tofaa/entitylib/velocity/VelocityEntityLibPlatform.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/EntityLib.java" beforeDir="false" afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/EntityLib.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/Platform.java" beforeDir="false" afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/Platform.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/meta/MetaOffsetConverter.java" beforeDir="false" afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/meta/MetaOffsetConverter.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/utils/GithubUpdater.java" beforeDir="false" afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/utils/GithubUpdater.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntity.java" beforeDir="false" afterPath="$PROJECT_DIR$/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntity.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/common/src/main/java/me/tofaa/entitylib/common/AbstractPlatform.java" beforeDir="false" afterPath="$PROJECT_DIR$/common/src/main/java/me/tofaa/entitylib/common/AbstractPlatform.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/settings.gradle" beforeDir="false" afterPath="$PROJECT_DIR$/settings.gradle" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/test-plugin/src/main/java/me/tofaa/testentitylib/TestEntityLibPlugin.java" beforeDir="false" afterPath="$PROJECT_DIR$/test-plugin/src/main/java/me/tofaa/testentitylib/TestEntityLibPlugin.java" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -84,46 +90,47 @@
     <option name="showExcludedFiles" value="false" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "Downloaded.Files.Path.Enabled": "false",
-    "Gradle.Build EntityLib.executor": "Run",
-    "Gradle.EntityLib [dependencies].executor": "Run",
-    "Gradle.EntityLib [publish].executor": "Run",
-    "Gradle.EntityLib:code-gen [:code-gen:Main.main()].executor": "Run",
-    "Gradle.EntityLib:test-plugin [publish].executor": "Run",
-    "Gradle.EntityLib:test-plugin [runServer].executor": "Run",
-    "Gradle.EntityLib:test-plugin [shadowJar].executor": "Run",
-    "Repository.Attach.Annotations": "false",
-    "Repository.Attach.JavaDocs": "false",
-    "Repository.Attach.Sources": "false",
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "WebServerToolWindowFactoryState": "false",
-    "git-widget-placeholder": "master",
-    "ignore.virus.scanning.warn.message": "true",
-    "jdk.selected.JAVA_MODULE": "corretto-17",
-    "kotlin-language-version-configured": "true",
-    "last_opened_file_path": "//wsl.localhost/Ubuntu/home/tofaa/Github/EntityLib",
-    "node.js.detected.package.eslint": "true",
-    "node.js.detected.package.tslint": "true",
-    "node.js.selected.package.eslint": "(autodetect)",
-    "node.js.selected.package.tslint": "(autodetect)",
-    "nodejs_package_manager_path": "npm",
-    "project.structure.last.edited": "Project",
-    "project.structure.proportion": "0.15",
-    "project.structure.side.proportion": "0.2",
-    "settings.editor.selected.configurable": "preferences.editor",
-    "vue.rearranger.settings.migration": "true"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;Downloaded.Files.Path.Enabled&quot;: &quot;false&quot;,
+    &quot;Gradle.Build EntityLib.executor&quot;: &quot;Run&quot;,
+    &quot;Gradle.EntityLib [dependencies].executor&quot;: &quot;Run&quot;,
+    &quot;Gradle.EntityLib [publish].executor&quot;: &quot;Run&quot;,
+    &quot;Gradle.EntityLib:code-gen [:code-gen:Main.main()].executor&quot;: &quot;Run&quot;,
+    &quot;Gradle.EntityLib:test-plugin [publish].executor&quot;: &quot;Run&quot;,
+    &quot;Gradle.EntityLib:test-plugin [runServer].executor&quot;: &quot;Run&quot;,
+    &quot;Gradle.EntityLib:test-plugin [shadowJar].executor&quot;: &quot;Run&quot;,
+    &quot;Repository.Attach.Annotations&quot;: &quot;false&quot;,
+    &quot;Repository.Attach.JavaDocs&quot;: &quot;false&quot;,
+    &quot;Repository.Attach.Sources&quot;: &quot;false&quot;,
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;WebServerToolWindowFactoryState&quot;: &quot;false&quot;,
+    &quot;git-widget-placeholder&quot;: &quot;master&quot;,
+    &quot;ignore.virus.scanning.warn.message&quot;: &quot;true&quot;,
+    &quot;jdk.selected.JAVA_MODULE&quot;: &quot;corretto-17&quot;,
+    &quot;kotlin-language-version-configured&quot;: &quot;true&quot;,
+    &quot;last_opened_file_path&quot;: &quot;/home/tofaa/Github/EntityLib/model-engine-addon&quot;,
+    &quot;node.js.detected.package.eslint&quot;: &quot;true&quot;,
+    &quot;node.js.detected.package.tslint&quot;: &quot;true&quot;,
+    &quot;node.js.selected.package.eslint&quot;: &quot;(autodetect)&quot;,
+    &quot;node.js.selected.package.tslint&quot;: &quot;(autodetect)&quot;,
+    &quot;nodejs_package_manager_path&quot;: &quot;npm&quot;,
+    &quot;project.structure.last.edited&quot;: &quot;Modules&quot;,
+    &quot;project.structure.proportion&quot;: &quot;0.15&quot;,
+    &quot;project.structure.side.proportion&quot;: &quot;0.2&quot;,
+    &quot;settings.editor.selected.configurable&quot;: &quot;preferences.editor&quot;,
+    &quot;vue.rearranger.settings.migration&quot;: &quot;true&quot;
   },
-  "keyToStringList": {
-    "kotlin-gradle-user-dirs": [
-      "/home/tofaa/.gradle"
+  &quot;keyToStringList&quot;: {
+    &quot;kotlin-gradle-user-dirs&quot;: [
+      &quot;/home/tofaa/.gradle&quot;
     ]
   }
-}]]></component>
+}</component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
+      <recent name="$PROJECT_DIR$/model-engine-addon" />
       <recent name="D:\Github\EntityLib\api\src\main\java\me\tofaa\entitylib\extras" />
       <recent name="D:\Github\EntityLib\api\src\main\java\me\tofaa\entitylib\meta" />
       <recent name="D:\Github\EntityLib\test-plugin" />
@@ -330,7 +337,12 @@
       <workItem from="1715627329632" duration="41000" />
       <workItem from="1715627440179" duration="1000" />
       <workItem from="1715634060575" duration="111000" />
-      <workItem from="1715634183157" duration="1468000" />
+      <workItem from="1715634183157" duration="2701000" />
+      <workItem from="1715678868119" duration="29000" />
+      <workItem from="1715759348557" duration="1699000" />
+      <workItem from="1716022802329" duration="1089000" />
+      <workItem from="1716206341414" duration="1609000" />
+      <workItem from="1716212065238" duration="80000" />
     </task>
     <servers />
   </component>
diff --git a/api/src/main/java/me/tofaa/entitylib/EntityLib.java b/api/src/main/java/me/tofaa/entitylib/EntityLib.java
index 92ab436..4653886 100644
--- a/api/src/main/java/me/tofaa/entitylib/EntityLib.java
+++ b/api/src/main/java/me/tofaa/entitylib/EntityLib.java
@@ -18,11 +18,14 @@ public static void init(Platform<?> platform, APIConfig settings) {
         if (api.getSettings().shouldCheckForUpdate()) {
             try {
                 if (api.getSettings().isDebugMode()) {
-                    platform.getLogger().log(Level.CONFIG, "Checking for updates...");
+                    platform.getLogger().log(Level.INFO, "Checking for updates...");
                 }
                 if (api.getSettings().requiresUpdate()) {
                     platform.getLogger().log(Level.WARNING, "You are using an outdated version of EntityLib. Please take a look at the Github releases page.");
                 }
+                else {
+                    platform.getLogger().log(Level.INFO, "No EntityLib updates found.");
+                }
 
             } catch (IOException e) {
                 platform.getLogger().log(Level.WARNING, e, () -> "EntityLib failed to check for updates.");
@@ -43,6 +46,6 @@ public static Platform<?> getPlatform() {
     }
 
     public static String getVersion() {
-        return "1.2.0-SNAPSHOT";
+        return "2.1.2-SNAPSHOT";
     }
 }
diff --git a/api/src/main/java/me/tofaa/entitylib/Platform.java b/api/src/main/java/me/tofaa/entitylib/Platform.java
index 08c6dba..8238335 100644
--- a/api/src/main/java/me/tofaa/entitylib/Platform.java
+++ b/api/src/main/java/me/tofaa/entitylib/Platform.java
@@ -67,7 +67,6 @@ public interface Platform<P> {
 
     /**
      * Sets up the API for the platform. This method should be called automatically by the platform. Don't call it yourself.
-     * @param settings
      */
     void setupApi(@NotNull APIConfig settings);
 
@@ -83,4 +82,10 @@ public interface Platform<P> {
 
     @NotNull P getHandle();
 
+    default void logIfNeeded(String message) {
+        if (getAPI().getSettings().isDebugMode()) {
+            getLogger().info(message);
+        }
+    }
+
 }
diff --git a/api/src/main/java/me/tofaa/entitylib/meta/MetaOffsetConverter.java b/api/src/main/java/me/tofaa/entitylib/meta/MetaOffsetConverter.java
index aaae37b..24769ee 100644
--- a/api/src/main/java/me/tofaa/entitylib/meta/MetaOffsetConverter.java
+++ b/api/src/main/java/me/tofaa/entitylib/meta/MetaOffsetConverter.java
@@ -9,9 +9,7 @@
 @ApiStatus.Internal
 @SuppressWarnings("unused")
 public final class MetaOffsetConverter {
-    private MetaOffsetConverter() {
-
-    }
+    private MetaOffsetConverter() {}
 
     public static final class EntityMetaOffsets {
         public static byte airTicksOffset() {
diff --git a/api/src/main/java/me/tofaa/entitylib/storage/ByteEntitySerializer.java b/api/src/main/java/me/tofaa/entitylib/storage/ByteEntitySerializer.java
new file mode 100644
index 0000000..1080e57
--- /dev/null
+++ b/api/src/main/java/me/tofaa/entitylib/storage/ByteEntitySerializer.java
@@ -0,0 +1,17 @@
+package me.tofaa.entitylib.storage;
+
+import me.tofaa.entitylib.wrapper.WrapperEntity;
+
+import java.nio.ByteBuffer;
+
+public class ByteEntitySerializer implements EntitySerializer<ByteBuffer, ByteBuffer> {
+    @Override
+    public WrapperEntity read(ByteBuffer reader) {
+        return null;
+    }
+
+    @Override
+    public void write(ByteBuffer writer, WrapperEntity wrapper) {
+
+    }
+}
diff --git a/api/src/main/java/me/tofaa/entitylib/storage/EntitySerializer.java b/api/src/main/java/me/tofaa/entitylib/storage/EntitySerializer.java
new file mode 100644
index 0000000..07359ca
--- /dev/null
+++ b/api/src/main/java/me/tofaa/entitylib/storage/EntitySerializer.java
@@ -0,0 +1,16 @@
+package me.tofaa.entitylib.storage;
+
+import me.tofaa.entitylib.wrapper.WrapperEntity;
+
+/**
+ * An interface that represents a way to serialize and deserialize {@link WrapperEntity} and its subclasses.
+ * @param <R> the reader generic
+ * @param <W> the writer generic
+ */
+public interface EntitySerializer<R, W> {
+
+    WrapperEntity read(R reader);
+
+    void write(W writer, WrapperEntity wrapper);
+
+}
diff --git a/api/src/main/java/me/tofaa/entitylib/storage/EntityStorage.java b/api/src/main/java/me/tofaa/entitylib/storage/EntityStorage.java
new file mode 100644
index 0000000..da0fddb
--- /dev/null
+++ b/api/src/main/java/me/tofaa/entitylib/storage/EntityStorage.java
@@ -0,0 +1,14 @@
+package me.tofaa.entitylib.storage;
+
+import me.tofaa.entitylib.wrapper.WrapperEntity;
+
+import java.util.Collection;
+
+public interface EntityStorage {
+
+
+    Collection<WrapperEntity> readAll();
+
+    void writeAll(Collection<WrapperEntity> entities);
+
+}
diff --git a/api/src/main/java/me/tofaa/entitylib/storage/FSEntityStorage.java b/api/src/main/java/me/tofaa/entitylib/storage/FSEntityStorage.java
new file mode 100644
index 0000000..8c10fa8
--- /dev/null
+++ b/api/src/main/java/me/tofaa/entitylib/storage/FSEntityStorage.java
@@ -0,0 +1,18 @@
+package me.tofaa.entitylib.storage;
+
+import me.tofaa.entitylib.wrapper.WrapperEntity;
+
+import java.util.Collection;
+import java.util.Collections;
+
+public class FSEntityStorage implements EntityStorage{
+    @Override
+    public Collection<WrapperEntity> readAll() {
+        return Collections.emptyList();
+    }
+
+    @Override
+    public void writeAll(Collection<WrapperEntity> entities) {
+
+    }
+}
diff --git a/api/src/main/java/me/tofaa/entitylib/utils/GithubUpdater.java b/api/src/main/java/me/tofaa/entitylib/utils/GithubUpdater.java
index a15f64f..4d029fc 100644
--- a/api/src/main/java/me/tofaa/entitylib/utils/GithubUpdater.java
+++ b/api/src/main/java/me/tofaa/entitylib/utils/GithubUpdater.java
@@ -23,15 +23,14 @@ public GithubUpdater(String org, String repo, String currentVersion) {
     }
 
     @Blocking
-    public boolean isLatestVersion() {
+    public boolean isLatestVersion() throws IOException {
         String latest = getLatestVersion();
         return latest != null && latest.equals(currentVersion);
     }
 
 
     @Blocking
-    public String getLatestVersion() {
-        try {
+    public String getLatestVersion() throws IOException {
             URL url = new URL("https://api.github.com/repos/" + org + "/" + repo + "/releases/latest");
             URLConnection connection = url.openConnection();
             connection.addRequestProperty("User-Agent", "Mozilla/5.0");
@@ -45,10 +44,6 @@ public String getLatestVersion() {
                 return json.get("name").getAsString();
             }
             throw new IOException("Could not find name attribute in github api fetch");
-        }
-        catch (IOException e) {
-            throw new RuntimeException(e);
-        }
     }
 
     public String getCurrentVersion() {
diff --git a/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntity.java b/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntity.java
index d42f79e..127688f 100644
--- a/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntity.java
+++ b/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntity.java
@@ -1,9 +1,5 @@
 package me.tofaa.entitylib.wrapper;
 
-import com.github.retrooper.packetevents.protocol.entity.data.EntityData;
-import com.github.retrooper.packetevents.protocol.entity.data.EntityDataType;
-import com.github.retrooper.packetevents.protocol.entity.data.EntityDataTypes;
-import com.github.retrooper.packetevents.protocol.entity.pose.EntityPose;
 import com.github.retrooper.packetevents.protocol.entity.type.EntityType;
 import com.github.retrooper.packetevents.protocol.player.User;
 import com.github.retrooper.packetevents.protocol.world.Location;
@@ -284,7 +280,7 @@ public EntityMeta getEntityMeta() {
         return entityMeta;
     }
 
-    public UUID getUuid() {
+    public @NotNull UUID getUuid() {
         return uuid;
     }
 
diff --git a/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntityAttributes.java b/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntityAttributes.java
new file mode 100644
index 0000000..8c4a1f4
--- /dev/null
+++ b/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperEntityAttributes.java
@@ -0,0 +1,85 @@
+package me.tofaa.entitylib.wrapper;
+
+import com.github.retrooper.packetevents.protocol.attribute.Attribute;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerUpdateAttributes;
+import org.w3c.dom.Attr;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.function.Consumer;
+
+public final class WrapperEntityAttributes {
+
+
+    public static final WrapperPlayServerUpdateAttributes.PropertyModifier.Operation ADDITION = WrapperPlayServerUpdateAttributes.PropertyModifier.Operation.ADDITION;
+    public static final WrapperPlayServerUpdateAttributes.PropertyModifier.Operation MULTIPLY_BASE = WrapperPlayServerUpdateAttributes.PropertyModifier.Operation.MULTIPLY_BASE;
+    public static final WrapperPlayServerUpdateAttributes.PropertyModifier.Operation MULTIPLY_TOTAL = WrapperPlayServerUpdateAttributes.PropertyModifier.Operation.MULTIPLY_TOTAL;
+
+    private final WrapperEntity entity;
+    private final List<WrapperPlayServerUpdateAttributes.Property> properties;
+
+    public WrapperEntityAttributes(WrapperEntity entity) {
+        this.entity = entity;
+        this.properties = new CopyOnWriteArrayList<>();
+    }
+
+    public void setAttribute(Attribute attribute, double value, List<WrapperPlayServerUpdateAttributes.PropertyModifier> modifiers) {
+        this.properties.stream()
+                .filter(property -> property.getAttribute() == attribute)
+                .findFirst().ifPresent(properties::remove);
+        this.properties.add(new WrapperPlayServerUpdateAttributes.Property(attribute, value, modifiers));
+        refresh();
+    }
+
+    public void setAttribute(Attribute attribute, double value, WrapperPlayServerUpdateAttributes.PropertyModifier modifier) {
+        setAttribute(attribute, value, Collections.singletonList(modifier));
+    }
+
+    public void setAttribute(Attribute attribute, double value) {
+        setAttribute(attribute, value, Collections.emptyList());
+    }
+
+    public List<WrapperPlayServerUpdateAttributes.Property> getProperties() {
+        return new ArrayList<>(properties);
+    }
+
+    public void forEach(Consumer<WrapperPlayServerUpdateAttributes.Property> action) {
+        properties.forEach(action);
+    }
+
+    public void clear() {
+        properties.clear();
+        refresh();
+    }
+
+    public void removeAttribute(Attribute attribute, WrapperPlayServerUpdateAttributes.PropertyModifier modifier) {
+        this.properties.stream()
+                .filter(property -> property.getAttribute() == attribute)
+                .findFirst().ifPresent(property -> {
+                    property.getModifiers().remove(modifier);
+                    if (property.getModifiers().isEmpty()) {
+                        properties.remove(property);
+                    }
+                });
+        refresh();
+    }
+
+    public void removeAttribute(Attribute attribute) {
+        this.properties.stream()
+                .filter(property -> property.getAttribute() == attribute)
+                .findFirst().ifPresent(properties::remove);
+        refresh();
+    }
+
+
+    public void refresh() {
+        entity.sendPacketToViewers(createPacket());
+    }
+
+    public WrapperPlayServerUpdateAttributes createPacket() {
+        return new WrapperPlayServerUpdateAttributes(entity.getEntityId(), properties);
+    }
+
+}
diff --git a/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperLivingEntity.java b/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperLivingEntity.java
index 85e3ff5..91e6090 100644
--- a/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperLivingEntity.java
+++ b/api/src/main/java/me/tofaa/entitylib/wrapper/WrapperLivingEntity.java
@@ -1,5 +1,6 @@
 package me.tofaa.entitylib.wrapper;
 
+import com.github.retrooper.packetevents.protocol.attribute.Attribute;
 import com.github.retrooper.packetevents.protocol.entity.type.EntityType;
 import com.github.retrooper.packetevents.protocol.nbt.NBTCompound;
 import com.github.retrooper.packetevents.protocol.player.HumanoidArm;
@@ -7,20 +8,23 @@
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerEntityAnimation;
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerEntityEffect;
 import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerTeams;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerUpdateAttributes;
 import me.tofaa.entitylib.meta.EntityMeta;
 import me.tofaa.entitylib.meta.types.LivingEntityMeta;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.List;
 import java.util.UUID;
 
 public class WrapperLivingEntity extends WrapperEntity{
 
     private final WrapperEntityEquipment equipment;
-
+    private final WrapperEntityAttributes attributes;
 
     public WrapperLivingEntity(int entityId, UUID uuid, EntityType entityType, EntityMeta entityMeta) {
         super(entityId, uuid, entityType, entityMeta);
         this.equipment = new WrapperEntityEquipment(this);
+        this.attributes = new WrapperEntityAttributes(this);
     }
 
     @Override
@@ -29,6 +33,12 @@ public void refresh() {
         equipment.refresh();
     }
 
+    public WrapperEntityAttributes getAttributes() {
+        return attributes;
+    }
+
+
+
     /**
      * Adds a potion effect to the entity.
      * EntityLib will not keep track of the potions you give or what you do with them,
diff --git a/common/src/main/java/me/tofaa/entitylib/common/AbstractPlatform.java b/common/src/main/java/me/tofaa/entitylib/common/AbstractPlatform.java
index 1c32de9..4cdfca4 100644
--- a/common/src/main/java/me/tofaa/entitylib/common/AbstractPlatform.java
+++ b/common/src/main/java/me/tofaa/entitylib/common/AbstractPlatform.java
@@ -79,4 +79,5 @@ public EventHandler getEventHandler() {
     public P getHandle() {
         return handle;
     }
+
 }
diff --git a/model-engine-addon/build.gradle b/model-engine-addon/build.gradle
new file mode 100644
index 0000000..4488d2f
--- /dev/null
+++ b/model-engine-addon/build.gradle
@@ -0,0 +1,8 @@
+repositories {
+    maven { url 'https://mvn.lumine.io/repository/maven-public/' }
+}
+
+dependencies {
+//    compileOnly 'com.ticxo.modelengine:ModelEngine:R4.0.4'
+    api(project(":api"))
+}
diff --git a/model-engine-addon/src/main/java/me/tofaa/entitylib/modelengine/ELibBaseEntity.java b/model-engine-addon/src/main/java/me/tofaa/entitylib/modelengine/ELibBaseEntity.java
new file mode 100644
index 0000000..84bebab
--- /dev/null
+++ b/model-engine-addon/src/main/java/me/tofaa/entitylib/modelengine/ELibBaseEntity.java
@@ -0,0 +1,5 @@
+package me.tofaa.entitylib.modelengine;
+
+public class ELibBaseEntity {
+
+}
diff --git a/settings.gradle b/settings.gradle
index 522ac72..93c431b 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -11,6 +11,7 @@ include 'common'
 if (!Boolean.parseBoolean(System.getenv("JITPACK"))) {
     include 'code-gen'
     include 'test-plugin'
+    include 'model-engine-addon'
 }
 include 'platforms:velocity'
 findProject(':platforms:velocity')?.name = 'velocity'
diff --git a/test-plugin/build.gradle b/test-plugin/build.gradle
index 46fec5a..f568298 100644
--- a/test-plugin/build.gradle
+++ b/test-plugin/build.gradle
@@ -32,15 +32,14 @@ repositories {
 
 dependencies {
     compileOnly('org.spigotmc:spigot-api:1.20.1-R0.1-SNAPSHOT')
-    compileOnly('com.github.retrooper.packetevents:spigot:2.0.2')
+    compileOnly('com.github.retrooper.packetevents:spigot:2.3.0')
     implementation(project(":platforms:spigot"))
 }
 
-tasks {
-    runServer {
-        minecraftVersion("1.20.4")
-        downloadPlugins {
-            modrinth("packetevents", "2.2.1")
-        }
+
+runServer {
+    minecraftVersion("1.20.4")
+    downloadPlugins {
+        modrinth("packetevents", "6Rjr7zyF")
     }
 }
\ No newline at end of file
diff --git a/test-plugin/src/main/java/me/tofaa/testentitylib/TestEntityLibPlugin.java b/test-plugin/src/main/java/me/tofaa/testentitylib/TestEntityLibPlugin.java
index 3f4a3da..c8baf17 100644
--- a/test-plugin/src/main/java/me/tofaa/testentitylib/TestEntityLibPlugin.java
+++ b/test-plugin/src/main/java/me/tofaa/testentitylib/TestEntityLibPlugin.java
@@ -24,8 +24,6 @@
 
 public class TestEntityLibPlugin extends JavaPlugin {
 
-    private SpigotEntityLibAPI api;
-
     @Override
     public void onEnable() {
 
@@ -34,10 +32,10 @@ public void onEnable() {
                 .debugMode()
                 .tickTickables()
                 .trackPlatformEntities()
+                .useBstats()
                 .usePlatformLogger();
 
         EntityLib.init(platform, settings);
-        api = platform.getAPI();
 
         CommandMap commandMap;
         try {
diff --git a/test-plugin/src/main/java/me/tofaa/testentitylib/TestMassivePigCommand.java b/test-plugin/src/main/java/me/tofaa/testentitylib/TestMassivePigCommand.java
new file mode 100644
index 0000000..1797574
--- /dev/null
+++ b/test-plugin/src/main/java/me/tofaa/testentitylib/TestMassivePigCommand.java
@@ -0,0 +1,46 @@
+package me.tofaa.testentitylib;
+
+import com.github.retrooper.packetevents.protocol.attribute.Attributes;
+import com.github.retrooper.packetevents.protocol.entity.type.EntityTypes;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerUpdateAttributes;
+import me.tofaa.entitylib.EntityLib;
+import me.tofaa.entitylib.wrapper.WrapperLivingEntity;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.defaults.BukkitCommand;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.UUID;
+
+public class TestMassivePigCommand extends BukkitCommand {
+
+    private WrapperLivingEntity pig;
+
+    public TestMassivePigCommand() {
+        super("testmassivepig");
+    }
+
+    @Override
+    public boolean execute(@NotNull CommandSender commandSender, @NotNull String s, @NotNull String[] strings) {
+        if (!(commandSender instanceof Player)) return false;
+        Player player = (Player) commandSender;
+        if (pig != null) {
+            pig.remove();
+            pig = null;
+            player.sendMessage("Large pig removed");
+            return true;
+        }
+        pig = EntityLib.getApi().createEntity(EntityTypes.PIG);
+        pig.getAttributes().setAttribute(
+                Attributes.GENERIC_SCALE,
+                10,
+                new WrapperPlayServerUpdateAttributes.PropertyModifier(
+                        UUID.randomUUID(),
+                        10,
+                        WrapperPlayServerUpdateAttributes.PropertyModifier.Operation.MULTIPLY_BASE
+                )
+        );
+        player.sendMessage("Large pig spawned");
+        return true;
+    }
+}