How you use it in the mods patch folder
<Operation Class="[YOUR C# MOD NAMESPACE].PatchOperationAddOrReplace">
<xpath>/Defs/ThingDef[defName="Plant_TreeBirch"]/plant</xpath>
<key>growDays</key>
<value>22</value>
</Operation>The class you need to add to your C# code
using System;
using System.Collections;
using System.Xml;
using Verse;
namespace [INSERT YOUR MOD NAMESPACE HERE]
{
/*
* A custom patch operation to simplify sequence patch operations when defensively adding fields
* Code by Lanilor (https://github.com/Lanilor)
* This code is provided "as-is" without any warrenty whatsoever. Use it on your own risk.
*/
public class PatchOperationAddOrReplace : PatchOperationPathed
{
protected string key;
private XmlContainer value;
protected override bool ApplyWorker(XmlDocument xml)
{
XmlNode valNode = value.node;
bool result = false;
IEnumerator enumerator = xml.SelectNodes(xpath).GetEnumerator();
try
{
while (enumerator.MoveNext())
{
object obj = enumerator.Current;
result = true;
XmlNode parentNode = obj as XmlNode;
XmlNode xmlNode = parentNode.SelectSingleNode(key);
if (xmlNode == null)
{
// Add - Add node if not existing
xmlNode = parentNode.OwnerDocument.CreateElement(key);
parentNode.AppendChild(xmlNode);
}
else
{
// Replace - Clear existing children
xmlNode.RemoveAll();
}
// (Re)add value
xmlNode.AppendChild(parentNode.OwnerDocument.ImportNode(valNode.FirstChild, true));
}
}
finally
{
IDisposable disposable = enumerator as IDisposable;
if (disposable != null)
{
disposable.Dispose();
}
}
return result;
}
}
}