chore: initial commit

Assets/Feel/MMTools/Accessories/MMParticles/MMDelayParticles.cs

@@ -0,0 +1,52 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace MoreMountains.Tools
+{
+	[ExecuteAlways]
+	/// <summary>
+	/// MM delay particles.
+	/// </summary>
+	[AddComponentMenu("More Mountains/Tools/Particles/MMDelayParticles")]
+	public class MMDelayParticles : MonoBehaviour 
+	{
+		[Header("Delay")]
+		/// the duration of the delay, in seconds
+		public float Delay;
+		/// if this is true, this will delay by the same amount all children particle systems of this object
+		public bool DelayChildren = true;
+		/// if this is true, the delay will be applied on Start
+		public bool ApplyDelayOnStart = false;
+
+		[MMInspectorButtonAttribute("ApplyDelay")]
+		public bool ApplyDelayButton;
+
+		protected Component[] particleSystems;
+
+		protected virtual void Start()
+		{
+			if (ApplyDelayOnStart)
+			{
+				ApplyDelay();
+			}
+		}
+
+		protected virtual void ApplyDelay()
+		{
+			if (this.gameObject.GetComponent<ParticleSystem>() != null)
+			{
+				ParticleSystem.MainModule main = this.gameObject.GetComponent<ParticleSystem>().main;
+				main.startDelay = main.startDelay.constant + Delay;
+			}
+
+			particleSystems = GetComponentsInChildren<ParticleSystem>();
+			foreach (ParticleSystem system in particleSystems)
+			{
+				ParticleSystem.MainModule main = system.main;
+				main.startDelay = main.startDelay.constant + Delay;
+			}
+
+		}		
+	}
+}