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allow components off root, but only allow one or error

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Lillith Rose 2026-01-07 16:52:44 -05:00
parent a49d2d74e6
commit 1f779f9297
18 changed files with 133 additions and 12 deletions
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58
Common/Runtime/ComponentHelper.cs Normal file
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using UnityEngine;
namespace gay.lilyy.Common
{
public static class ComponentHelper
{
/// <summary>
/// Searches for a component in children of the root GameObject.
/// Returns null if no component is found.
/// Logs an error and returns null if multiple components are found.
/// </summary>
/// <typeparam name="T">The component type to search for</typeparam>
/// <param name="root">The root GameObject to search in</param>
/// <returns>The component if exactly one is found, null otherwise</returns>
public static T? GetComponentInChildrenWithError<T>(GameObject root) where T : Component
{
if (root == null) return null;
T[] components = root.GetComponentsInChildren<T>(true);
if (components.Length == 0)
{
return null;
}
if (components.Length > 1)
{
Debug.LogError($"Multiple {typeof(T).Name} components found in children of {root.name}. Only one is allowed.");
return null;
}
return components[0];
}
/// <summary>
/// Searches for a component in children of the root Transform.
/// Returns null if no component is found.
/// Logs an error and returns null if multiple components are found.
/// </summary>
/// <typeparam name="T">The component type to search for</typeparam>
/// <param name="root">The root Transform to search in</param>
/// <returns>The component if exactly one is found, null otherwise</returns>
public static T? GetComponentInChildrenWithError<T>(Transform root) where T : Component
{
if (root == null) return null;
T[] components = root.GetComponentsInChildren<T>(true);
if (components.Length == 0)
{
return null;
}
if (components.Length > 1)
{
Debug.LogError($"Multiple {typeof(T).Name} components found in children of {root.name}. Only one is allowed.");
return null;
}
return components[0];
}
}
}