1 files changed, 69 insertions, 0 deletions
diff --git a/Assets/Scripts/UIFlip.cs b/Assets/Scripts/UIFlip.cs
new file mode 100644
index 0000000..2cb7055
--- /dev/null
+++ b/Assets/Scripts/UIFlip.cs
@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace Coffee.UIEffects
+{
+    [DisallowMultipleComponent]
+    [AddComponentMenu("UI/UIEffects/UIFlip", 102)]
+    public class UIFlip : BaseMeshEffect
+    {
+        [Tooltip("Flip horizontally.")] [SerializeField]
+        private bool m_Horizontal = false;
+
+        [Tooltip("Flip vertically.")] [SerializeField]
+        private bool m_Veritical = false;
+
+        /// <summary>
+        /// Gets or sets a value indicating whether this <see cref="Coffee.UIEffects.UIFlip"/> should be flipped horizontally.
+        /// </summary>
+        /// <value><c>true</c> if be flipped horizontally; otherwise, <c>false</c>.</value>
+        public bool horizontal
+        {
+            get { return m_Horizontal; }
+            set
+            {
+                if (m_Horizontal == value) return;
+                m_Horizontal = value;
+                SetEffectParamsDirty();
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether this <see cref="Coffee.UIEffects.UIFlip"/> should be flipped vertically.
+        /// </summary>
+        /// <value><c>true</c> if be flipped horizontally; otherwise, <c>false</c>.</value>
+        public bool vertical
+        {
+            get { return m_Veritical; }
+            set
+            {
+                if (m_Veritical == value) return;
+                m_Veritical = value;
+                SetEffectParamsDirty();
+            }
+        }
+
+        /// <summary>
+        /// Call used to modify mesh.
+        /// </summary>
+        /// <param name="vh">VertexHelper.</param>
+        public override void ModifyMesh(VertexHelper vh, Graphic graphic)
+        {
+            if (!isActiveAndEnabled) return;
+
+            var vt = default(UIVertex);
+            for (var i = 0; i < vh.currentVertCount; i++)
+            {
+                vh.PopulateUIVertex(ref vt, i);
+                var pos = vt.position;
+                vt.position = new Vector3(
+                    m_Horizontal ? -pos.x : pos.x,
+                    m_Veritical ? -pos.y : pos.y
+                );
+                vh.SetUIVertex(vt, i);
+            }
+        }
+    }
+}