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using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System;
namespace UnityEngine.UI
{
[RequireComponent( typeof( RectTransform ) ), RequireComponent( typeof( Graphic ) ), DisallowMultipleComponent, AddComponentMenu( "UI/Flippable" )]
public class UIFlippable : MonoBehaviour, IMeshModifier
{
[SerializeField]
private bool m_Horizontal = false;
[SerializeField]
private bool m_Veritical = false;
/// <summary>
/// Gets or sets a value indicating whether this <see cref="UnityEngine.UI.UIFlippable"/> should be flipped horizontally.
/// </summary>
/// <value><c>true</c> if horizontal; otherwise, <c>false</c>.</value>
public bool horizontal
{
get { return this.m_Horizontal; }
set { this.m_Horizontal = value; this.GetComponent<Graphic>().SetVerticesDirty(); }
}
/// <summary>
/// Gets or sets a value indicating whether this <see cref="UnityEngine.UI.UIFlippable"/> should be flipped vertically.
/// </summary>
/// <value><c>true</c> if vertical; otherwise, <c>false</c>.</value>
public bool vertical
{
get { return this.m_Veritical; }
set { this.m_Veritical = value; this.GetComponent<Graphic>().SetVerticesDirty(); }
}
protected void OnValidate()
{
this.GetComponent<Graphic>().SetVerticesDirty();
}
public void ModifyVertices( List<UIVertex> verts )
{
RectTransform rt = this.transform as RectTransform;
for ( int i = 0; i < verts.Count; ++i )
{
UIVertex v = verts[ i ];
// Modify positions
v.position = new Vector3(
( this.m_Horizontal ? ( v.position.x + ( rt.rect.center.x - v.position.x ) * 2 ) : v.position.x ),
( this.m_Veritical ? ( v.position.y + ( rt.rect.center.y - v.position.y ) * 2 ) : v.position.y ),
v.position.z
);
// Apply
verts[ i ] = v;
}
}
public void ModifyMesh( Mesh mesh )
{
}
public void ModifyMesh( VertexHelper verts )
{
List<UIVertex> buffer = new List<UIVertex>();
verts.GetUIVertexStream( buffer );
ModifyVertices( buffer );
verts.AddUIVertexTriangleStream( buffer );
}
}
}
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