begin working on Animation

animate/pom.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>me.hsgamer</groupId>
+    <artifactId>hscore</artifactId>
+    <version>4.4.4-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>hscore-animate</artifactId>
+</project>

animate/src/main/java/me/hsgamer/hscore/animate/Animation.java

@@ -0,0 +1,43 @@
+package me.hsgamer.hscore.animate;
+
+import java.util.List;
+
+public class Animation<T> {
+  private final List<T> frames;
+  private final long periodMillis;
+  private Long startMillis;
+
+  public Animation(List<T> frames, long periodMillis) {
+    if (frames.isEmpty()) {
+      throw new IllegalArgumentException("Frames cannot be empty");
+    }
+    if (periodMillis <= 0) {
+      throw new IllegalArgumentException("Period must be positive");
+    }
+
+    this.frames = frames;
+    this.periodMillis = periodMillis;
+  }
+
+  public List<T> getFrames() {
+    return frames;
+  }
+
+  public T getFrame(int index) {
+    return frames.get(index);
+  }
+
+  public T getCurrentFrame() {
+    long currentMillis = System.currentTimeMillis();
+    if (startMillis == null) {
+      startMillis = currentMillis;
+    }
+    long diff = currentMillis - startMillis;
+    int index = (int) (diff / periodMillis) % frames.size();
+    return frames.get(index);
+  }
+
+  public void reset() {
+    startMillis = null;
+  }
+}

pom.xml

@@ -64,6 +64,7 @@
     <module>minestom</module>
     <module>license</module>
     <module>action</module>
+    <module>animate</module>
   </modules>
 
   <properties>