chore: initial commit

Assets/Feel/MMTools/Accessories/MMGUI/MMSliderStep.cs

@@ -0,0 +1,57 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Events;
+#if MM_UI
+using UnityEngine.UI;
+
+namespace MoreMountains.Tools
+{
+	/// <summary>
+	/// Add this class to a UI slider and it'll let you trigger events when the cursor moves past a certain step
+	/// </summary>
+	[AddComponentMenu("More Mountains/Tools/GUI/MMSliderStep")]
+	[RequireComponent(typeof(Slider))]
+	public class MMSliderStep : MonoBehaviour
+	{
+		[Header("Slider Step")]
+		/// the threshold to trigger steps at
+		public float StepThreshold = 0.1f;
+		/// the event to trigger when a step is met
+		public UnityEvent OnStep;
+
+		protected Slider _slider;
+		protected float _lastStep = 0f;
+
+		/// <summary>
+		/// On enable, starts listening for value change events
+		/// </summary>
+		protected virtual void OnEnable()
+		{
+			_slider = this.gameObject.GetComponent<Slider>();
+			_slider.onValueChanged.AddListener(ValueChangeCheck);
+		}
+
+		/// <summary>
+		/// On disable, stops listening for value change events
+		/// </summary>
+		protected virtual void OnDisable()
+		{
+			_slider.onValueChanged.RemoveListener(ValueChangeCheck);
+		}
+
+		/// <summary>
+		/// when a value change is met, we trigger an event
+		/// </summary>
+		/// <param name="value"></param>
+		public virtual void ValueChangeCheck(float value)
+		{
+			if (Mathf.Abs(_slider.value - _lastStep) > StepThreshold)
+			{
+				_lastStep = _slider.value;
+				OnStep?.Invoke();
+			}
+		}
+	}
+}
+#endif