chore: initial commit

Assets/Feel/MMTools/Accessories/MMSprites/MMLineRendererDriver.cs

@@ -0,0 +1,95 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace MoreMountains.Tools
+{
+	/// <summary>
+	/// This component, added to a line renderer, will let you fill a list of transforms, and bind their positions to the linerenderer's positions.
+	/// </summary>
+	[RequireComponent(typeof(LineRenderer))]
+	public class MMLineRendererDriver : MonoBehaviour
+	{
+		[Header("Position Drivers")]
+
+		/// the list of targets - their quantity has to match the LineRenderer's positions count
+		public List<Transform> Targets;
+		/// whether or not to keep both in sync at update
+		public bool BindPositionsToTargetsAtUpdate = true;
+
+		[Header("Binding")]
+
+		/// a test button
+		[MMInspectorButton("Bind")]
+		public bool BindButton;
+
+		protected LineRenderer _lineRenderer;
+		protected bool _countsMatch = false;
+
+		/// <summary>
+		/// On Awake we initialize our driver
+		/// </summary>
+		protected virtual void Awake()
+		{
+			Initialization();
+		}
+
+		/// <summary>
+		/// Grabs the line renderer, tests counts
+		/// </summary>
+		protected virtual void Initialization()
+		{
+			_lineRenderer = this.gameObject.GetComponent<LineRenderer>();
+			_countsMatch = CheckPositionCounts();
+			if (!_countsMatch)
+			{
+				Debug.LogWarning(this.name + ", MMLineRendererDriver's Targets list doesn't have the same amount of entries as the LineRender's Positions array. It won't work.");
+			}
+		}
+
+		/// <summary>
+		/// On Update we bind our positions to targets if needed
+		/// </summary>
+		protected virtual void Update()
+		{
+			if (BindPositionsToTargetsAtUpdate)
+			{
+				BindPositionsToTargets();
+			}
+		}
+
+		/// <summary>
+		/// A method meant to be called by the inspector button
+		/// </summary>
+		protected virtual void Bind()
+		{
+			Initialization();
+			BindPositionsToTargets();
+		}
+
+		/// <summary>
+		/// Goes through all the targets and assigns their positions to the LineRenderer's positions
+		/// </summary>
+		public virtual void BindPositionsToTargets()
+		{
+			if (!_countsMatch)
+			{
+				return;
+			}
+
+			for (int i = 0; i < Targets.Count; i++)
+			{
+				_lineRenderer.SetPosition(i, Targets[i].position);
+			}
+		}
+
+		/// <summary>
+		/// Makes sure the counts match
+		/// </summary>
+		/// <returns></returns>
+		protected virtual bool CheckPositionCounts()
+		{
+			return Targets.Count == _lineRenderer.positionCount;
+		}
+	}
+}