#nullable disable
using MCPForUnity.Editor.Helpers;
using Newtonsoft.Json.Linq;
using UnityEditor;
using UnityEngine;
namespace MCPForUnity.Editor.Tools.GameObjects
{
internal static class GameObjectLookAt
{
/// <summary>
/// Rotates a GameObject to face a world position or another GameObject.
/// Parameters:
/// target - The GO to rotate (name/path/instanceID)
/// look_at_target - World position [x,y,z] or GO reference (name/path/instanceID) to look at
/// look_at_up - Optional up vector [x,y,z], defaults to Vector3.up
/// </summary>
internal static object Handle(JObject @params, JToken targetToken, string searchMethod)
{
GameObject targetGo = ManageGameObjectCommon.FindObjectInternal(targetToken, searchMethod);
if (targetGo == null)
{
return new ErrorResponse($"Target GameObject ('{targetToken}') not found using method '{searchMethod ?? "default"}'.");
}
JToken lookAtToken = @params["look_at_target"] ?? @params["lookAtTarget"];
if (lookAtToken == null)
{
return new ErrorResponse("'look_at_target' parameter is required for 'look_at' action. Provide a world position [x,y,z] or a GameObject name/path/ID.");
}
// Try parsing as a position vector first
Vector3? lookAtPos = VectorParsing.ParseVector3(lookAtToken);
if (!lookAtPos.HasValue)
{
// Not a vector — treat as a GO reference, using the same search method as for the main target
GameObject lookAtGo = ManageGameObjectCommon.FindObjectInternal(lookAtToken, searchMethod);
if (lookAtGo == null)
{
return new ErrorResponse($"look_at_target '{lookAtToken}' could not be resolved as a position [x,y,z] or found as a GameObject.");
}
lookAtPos = lookAtGo.transform.position;
}
Vector3 upVector = VectorParsing.ParseVector3OrDefault(@params["look_at_up"] ?? @params["lookAtUp"], Vector3.up);
Undo.RecordObject(targetGo.transform, $"LookAt {targetGo.name}");
targetGo.transform.LookAt(lookAtPos.Value, upVector);
var euler = targetGo.transform.rotation.eulerAngles;
return new SuccessResponse(
$"'{targetGo.name}' now looking at ({lookAtPos.Value.x:F2}, {lookAtPos.Value.y:F2}, {lookAtPos.Value.z:F2}).",
new
{
name = targetGo.name,
instanceID = targetGo.GetInstanceID(),
rotation = new[] { euler.x, euler.y, euler.z },
lookAtPosition = new[] { lookAtPos.Value.x, lookAtPos.Value.y, lookAtPos.Value.z },
}
);
}
}
}
