EditorApplication.isPlaying

Description

Is editor currently in play mode?

Setting isPlaying delays the result until after all script code has completed for this frame.

See Also: isPaused, isPlayingOrWillChangePlaymode.

using UnityEngine;
using UnityEditor;

// Simple example where EditorApplication.isPlaying is watched to
// report whether game is played or not.

public class EditorPlaying : EditorWindow
{
    [MenuItem("Examples/EditorApplication.isPlaying demo")]
    static void Init()
    {
        EditorWindow window = GetWindow(typeof(EditorPlaying));
        window.position = new Rect(100, 100, 150, 50);
        window.Show();
    }

    void OnGUI()
    {
        if (EditorApplication.isPlaying)
        {
            EditorGUILayout.LabelField("Playing");
        }
        else
        {
            EditorGUILayout.LabelField("Not playing");
        }
    }
}