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Assets/Obi/Scripts/RopeAndRod/DataStructures/ObiRopeSection.cs

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+using System.Collections.Generic;
+using UnityEngine;
+
+namespace Obi
+{
+    [CreateAssetMenu(fileName = "rope section", menuName = "Obi/Rope Section", order = 142)]
+	public class ObiRopeSection : ScriptableObject
+	{
+		[HideInInspector] public List<Vector2> vertices;
+		public int snapX = 0;
+		public int snapY = 0;
+
+		public int Segments{
+			get{return vertices.Count-1;}
+		}
+
+		public void OnEnable(){
+
+			if (vertices == null){
+				vertices = new List<Vector2>();
+				CirclePreset(8);
+			}
+
+    	}
+
+		public void CirclePreset(int segments){
+
+			vertices.Clear();
+
+			for (int j = 0; j <= segments; ++j){
+				float angle = 2 * Mathf.PI / segments * j;
+				vertices.Add(Mathf.Cos(angle)*Vector2.right + Mathf.Sin(angle)*Vector2.up);
+			}
+		}
+
+		/**
+		 * Snaps a float value to the nearest multiple of snapInterval.
+		 */	
+		public static int SnapTo(float val, int snapInterval, int threshold){
+			int intVal = (int) val;	
+			if (snapInterval <= 0)
+				return intVal;
+			int under = Mathf.FloorToInt(val / snapInterval) * snapInterval;
+			int over = under + snapInterval;
+			if (intVal - under < threshold) return under;
+			if (over - intVal < threshold) return over;
+			return intVal;
+		}
+
+	}
+}
+