adding in some needed packages

Assets/DamageNumbersPro/Scripts/Settings/VelocitySettings.cs

@@ -0,0 +1,48 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace DamageNumbersPro
+{
+    [System.Serializable]
+    public struct VelocitySettings
+    {
+        public VelocitySettings(float customDefault)
+        {
+            minX = -1f;
+            maxX = 1f;
+            minY = 4f;
+            maxY = 5f;
+
+            randomFlip = false;
+
+            dragX = 0.1f;
+            dragY = 1f;
+            gravity = 3f;
+        }
+
+        [Header("Velocity:")]
+        [Tooltip("Minimum of horizontal velocity.")]
+        public float minX;
+        [Tooltip("Maximum of horizontal velocity.")]
+        public float maxX;
+        [Tooltip("Minimum of vertical velocity.")]
+        public float minY;
+        [Tooltip("Maximum of vertical velocity.")]
+        public float maxY;
+
+        [Header("Horizontal Flip:")]
+        [Tooltip("Randomly flips the X Velocity.\nUseful for avoiding small movements.\nSet Min X and Max X to a positive value.")]
+        public bool randomFlip;
+
+        [Header("Drag:")]
+        [Tooltip("Reduces horizontal velocity over time.")]
+        public float dragX;
+        [Tooltip("Reduces vertical velocity over time.")]
+        public float dragY;
+
+        [Header("Gravity:")]
+        [Tooltip("Increases vertical velocity downwards.")]
+        public float gravity;
+    }
+}