Getting Started

Some tips and tricks on how to begin using T4 Templating.

Official Docs

• MS Docs: Code Generation and T4 Text Templates
• MS Docs: Design Time Templates

Quick Examples

Generate UnityEvent classes

Sometimes you may want to have many UnityEvents with various typed parameters. Using a Text Template, you can quickly generate these classes:

<#@ template language="C#" #>
<#@ import namespace="System.Text" #>
<#@ import namespace="System.Collections.Generic" #>

using System;
using UnityEngine;
using UnityEngine.Events;

namespace Events
{

<#
    foreach (var type in new string[] {"Vector2", "Vector3"})
    {
#>
    [Serializable]
    public class <#= type #>Event : UnityEvent<<#= type #>> {}

<#
    }
#>

}

We embed a foreach loop that walks a list of type names (as strings). For each type, we create a class named {Type}Event, that inherits from UnityEvent<{Type}>. Here's the output:

using System;
using UnityEngine;
using UnityEngine.Events;

namespace Events
{
    [Serializable]
    public class Vector2Event : UnityEvent<Vector2> {}

    [Serializable]
    public class Vector3Event : UnityEvent<Vector3> {}
}