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VFXSystemNames.cs
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VFXSystemNames.cs
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using UnityEngine;
using UnityEditor.VFX;
using System;
using System.Collections.Generic;
using System.Linq;
using UnityEditor.VFX.UI;
using UnityEditor;
using System.Runtime.CompilerServices;
using SysRegex = System.Text.RegularExpressions.Regex;
namespace UnityEditor.VFX
{
internal class VFXSystemNames
{
public static readonly string DefaultSystemName = "System";
private static readonly string IndexPattern = @" (\(([0-9])*\))$";
private Dictionary<VFXModel, int> m_SystemToIndex = new Dictionary<VFXModel, int>();
public static string GetSystemName(VFXModel model)
{
// general case
var data = model as VFXData;
if (data != null)
{
return data.title;
}
// special case for spawners
var context = model as VFXContext;
if (context != null)
{
if (context.contextType == VFXContextType.Spawner)
return context.label;
else
{
var contextData = context.GetData();
if (contextData != null)
return contextData.title;
}
}
return null;
}
public static void SetSystemName(VFXModel model, string name)
{
// general case
var data = model as VFXData;
if (data != null)
{
data.title = name;
return;
}
// special case for spawner
var context = model as VFXContext;
if (context != null)
{
if (context.contextType == VFXContextType.Spawner)
{
context.label = name;
return;
}
else
{
var contextData = context.GetData();
if (contextData != null)
{
contextData.title = name;
return;
}
}
}
}
private static string GetSystemUnindexedName(VFXModel model)
{
var name = GetSystemName(model);
return string.IsNullOrEmpty(name) ? name : SysRegex.Replace(name, IndexPattern, "");
}
private static int ExtractIndex(string name)
{
if (SysRegex.IsMatch(name, IndexPattern))
{
var afterOpeningBracket = name.LastIndexOf('(') + 1;
var closingBracket = name.LastIndexOf(')');
var index = name.Substring(afterOpeningBracket, closingBracket - afterOpeningBracket);
return int.Parse(index);
}
return 0;
}
public string GetUniqueSystemName(VFXModel model)
{
int index;
if (m_SystemToIndex.TryGetValue(model, out index))
{
var wishedName = GetSystemUnindexedName(model);
if (string.IsNullOrEmpty(wishedName))
wishedName = DefaultSystemName;
var format = "{0} ({1})";
var newName = index == 0 ? wishedName : string.Format(format, wishedName, index);
return newName;
}
if (!(model is VFXSubgraphContext))
throw new InvalidOperationException("SystemNames : Model is not registered " + model);
return GetSystemName(model);
}
public void Sync(VFXGraph graph)
{
var models = new HashSet<ScriptableObject>();
graph.CollectDependencies(models, false);
var systems = models.OfType<VFXContext>()
.Where(c => c.contextType == VFXContextType.Spawner || c.GetData() != null)
.Select(c => c.contextType == VFXContextType.Spawner ? c as VFXModel : c.GetData())
.Distinct();
Init(systems);
}
public void Init(IEnumerable<VFXModel> models)
{
m_SystemToIndex.Clear();
foreach (var system in models)
{
var systemName = GetSystemUnindexedName(system);
var index = GetIndex(systemName);
m_SystemToIndex[system] = index;
}
}
private int GetIndex(string unindexedName)
{
int index = -1;
IEnumerable<int> unavailableIndices;
if (string.IsNullOrEmpty(unindexedName) || unindexedName == DefaultSystemName)
unavailableIndices = m_SystemToIndex.Where(pair => (string.IsNullOrEmpty(GetSystemUnindexedName(pair.Key)) || GetSystemUnindexedName(pair.Key) == DefaultSystemName)).Select(pair => pair.Value);
else
unavailableIndices = m_SystemToIndex.Where(pair => GetSystemUnindexedName(pair.Key) == unindexedName).Select(pair => pair.Value);
if (unavailableIndices.Any())
{
var unavailableIndicesList = unavailableIndices.ToList();
unavailableIndicesList.Sort();
for (int i = 0; i < unavailableIndicesList.Count(); ++i)
if (i != unavailableIndicesList[i])
{
index = i;
break;
}
if (index == -1)
index = unavailableIndicesList.Last() + 1;
}
else
{
index = 0;
}
return index;
}
}
}