A lot of stuff (Read desc)

Beat action is now used to define one-off objects that is used by the beat but I don't wanna bother making a different script for. Example case: the "hit 3" sprite in Karate Man.

Animation helpers for functions I don't wanna rewrite 100,000 times.

General improvements for Karate Man, like prepare animation and some updates to game events.

Assets/Scripts/Util/BeatAction.cs

@@ -0,0 +1,47 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace RhythmHeavenMania.Util
+{
+    public class BeatAction : MonoBehaviour
+    {
+        private int index;
+        private List<Action> actions = new List<Action>();
+
+        public delegate void EventCallback();
+
+        public class Action
+        {
+            public float beat { get; set; }
+            public EventCallback function { get; set; }
+
+            public Action(float beat, EventCallback function)
+            {
+                this.beat = beat;
+                this.function = function;
+            }
+        }
+
+        public static void New(GameObject prefab, List<Action> actions)
+        {
+            BeatAction beatAction = prefab.AddComponent<BeatAction>();
+            beatAction.actions = actions;
+        }
+
+        private void Update()
+        {
+            float songPositionInBeats = Conductor.instance.songPositionInBeats;
+
+            for (int i = 0; i < actions.Count; i++)
+            {
+                if (songPositionInBeats >= actions[i].beat && index == i)
+                {
+                    actions[i].function.Invoke();
+                    index++;
+                }
+            }
+        }
+    }
+
+}