Small fix

Source/Engine/Particles/ParticleEffect.h

@@ -185,6 +185,7 @@ private:
     Array<ParticleEffectParameter> _parameters; // Cached for scripting API
     Array<ParameterOverride> _parametersOverrides; // Cached parameter modifications to be applied to the parameters
     bool _play = false;
+    bool _isPlaying = false;
 
 public:
     /// <summary>
@@ -241,12 +242,6 @@ public:
     API_FIELD(Attributes="EditorDisplay(\"Particle Effect\"), DefaultValue(true), EditorOrder(60)")
     bool PlayOnStart = true;
 
-    /// <summary>
-    /// If true, the particle effect is playing.
-    /// </summary>
-    API_FIELD()
-    bool IsPlaying = false;
-
     /// <summary>
     /// If true, the particle simulation will be updated even when an actor cannot be seen by any camera. Otherwise, the simulation will stop running when the actor is off-screen.
     /// </summary>
@@ -339,6 +334,11 @@ public:
     /// </summary>
     API_PROPERTY() int32 GetParticlesCount() const;
 
+    /// <summary>
+    /// Gets whether or not the particle effect is playing.
+    /// </summary>
+    API_PROPERTY(Attributes="NoSerialize, HideInEditor") bool GetIsPlaying() const;
+
     /// <summary>
     /// Resets the particles simulation state (clears the instance state data but preserves the instance parameters values).
     /// </summary>