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// Amplify Shader Editor - Visual Shader Editing Tool
// Copyright (c) Amplify Creations, Lda <info@amplify.pt>
using System.Collections.Generic;
namespace AmplifyShaderEditor
{
public class ActionLog
{
private int m_maxCount;
private int m_index;
private List<ActionData> m_sequence;
public ActionLog(int maxCount)
{
m_maxCount = maxCount;
m_index = 0;
m_sequence = new List<ActionData>();
}
public void AddToLog(ActionData actionData)
{
if (m_sequence.Count > m_maxCount)
{
m_sequence.RemoveAt(0);
}
m_sequence.Add(actionData);
m_index = m_sequence.Count - 1;
}
public void UndoLastAction()
{
if ( m_index > -1 && m_index < m_sequence.Count )
m_sequence[m_index--].ExecuteReverse();
}
public void RedoLastAction()
{
if (m_index < (m_sequence.Count - 1))
m_sequence[++m_index].ExecuteForward();
}
public void ClearLog()
{
m_sequence.Clear();
m_index = 0;
}
public void Destroy()
{
m_sequence.Clear();
m_sequence = null;
}
}
}
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