From 8ae051b7b2c69978fba1d9159b6c72afeea0e92a Mon Sep 17 00:00:00 2001
From: Takashi Sakai <sakai@mobcast.jp>
Date: Sun, 6 May 2018 21:09:32 +0900
Subject: [PATCH] Feature: Flip horizontal/vertical #47

---
 Assets/UIEffect/UIFlip.cs      | 58 ++++++++++++++++++++++++++++++++++
 Assets/UIEffect/UIFlip.cs.meta | 12 +++++++
 2 files changed, 70 insertions(+)
 create mode 100644 Assets/UIEffect/UIFlip.cs
 create mode 100644 Assets/UIEffect/UIFlip.cs.meta

diff --git a/Assets/UIEffect/UIFlip.cs b/Assets/UIEffect/UIFlip.cs
new file mode 100644
index 00000000..008fbde3
--- /dev/null
+++ b/Assets/UIEffect/UIFlip.cs
@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace Coffee.UIExtensions
+{
+
+	[RequireComponent(typeof(Graphic))]
+	[DisallowMultipleComponent]
+	public class UIFlip : BaseMeshEffect
+	{
+		//################################
+		// Serialize Members.
+		//################################
+		[SerializeField] private bool m_Horizontal = false;
+		[SerializeField] private bool m_Veritical = false;
+
+		//################################
+		// Public Members.
+		//################################
+		/// <summary>
+		/// Gets or sets a value indicating whether this <see cref="Coffee.UIExtensions.UIFlip"/> should be flipped horizontally.
+		/// </summary>
+		/// <value><c>true</c> if be flipped horizontally; otherwise, <c>false</c>.</value>
+		public bool horizontal { get { return this.m_Horizontal; } set { this.m_Horizontal = value; } }
+
+		/// <summary>
+		/// Gets or sets a value indicating whether this <see cref="Coffee.UIExtensions.UIFlip"/> should be flipped vertically.
+		/// </summary>
+		/// <value><c>true</c> if be flipped horizontally; otherwise, <c>false</c>.</value>
+		public bool vertical { get { return this.m_Veritical; } set { this.m_Veritical = value; } }
+
+		/// <summary>
+		/// Call used to modify mesh.
+		/// </summary>
+		/// <param name="vh">VertexHelper.</param>
+		public override void ModifyMesh(VertexHelper vh)
+		{
+			RectTransform rt = graphic.rectTransform;
+			UIVertex vt = default(UIVertex);
+			Vector3 pos;
+			Vector2 center = rt.rect.center;
+			for (int i = 0; i < vh.currentVertCount; i++)
+			{
+				vh.PopulateUIVertex(ref vt, i);
+				pos = vt.position;
+				vt.position = new Vector3(
+					m_Horizontal ? -pos.x : pos.x,
+					m_Veritical ? -pos.y : pos.y
+//					m_Horizontal ? (pos.x + (center.x - pos.x) * 2) : pos.x,
+//					m_Veritical ? (pos.y + (center.y - pos.y) * 2) : pos.y
+				);
+				vh.SetUIVertex(vt, i);
+			}
+		}
+	}
+}
\ No newline at end of file
diff --git a/Assets/UIEffect/UIFlip.cs.meta b/Assets/UIEffect/UIFlip.cs.meta
new file mode 100644
index 00000000..86d3ecba
--- /dev/null
+++ b/Assets/UIEffect/UIFlip.cs.meta
@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 9bb4e59514e90489d985e9a17c838085
+timeCreated: 1525607243
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: