using System.Linq;
using UnityEditorInternal;
using UnityEngine;
using UnityMCP.Editor.Utilities;
namespace UnityMCP.Editor.Resources.Project
{
/// <summary>
/// Resource provider for project layers.
/// </summary>
public static class Layers
{
/// <summary>
/// Gets all layers defined in the project with their indices.
/// </summary>
/// <returns>Object containing layer information.</returns>
[MCPResource("project://layers", "Project layers and their indices")]
public static object Get()
{
// Get all non-empty layers
string[] definedLayers = InternalEditorUtility.layers;
// Build a complete list of all layer slots with their names
var allLayers = Enumerable.Range(0, UnityConstants.TotalLayerCount)
.Select(layerIndex => new
{
index = layerIndex,
name = LayerMask.LayerToName(layerIndex),
isDefined = !string.IsNullOrEmpty(LayerMask.LayerToName(layerIndex)),
mask = 1 << layerIndex
})
.ToArray();
// Get only defined layers for convenience
var definedLayersList = allLayers
.Where(layer => layer.isDefined)
.Select(layer => new
{
layer.index,
layer.name,
layer.mask
})
.ToArray();
return new
{
totalSlots = UnityConstants.TotalLayerCount,
definedCount = definedLayers.Length,
layers = definedLayersList,
allSlots = allLayers
};
}
}
}
