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Assets/Scripts/Managers/MapManager.cs

@@ -3,17 +3,62 @@ using UnityEngine;
 
 public class MapManager : MonoBehaviour
 {
-    public static List<NavPoint> navPoints { get; private set; }
-    private void Start()
+    private static MapManager instance;
+    public static MapManager Instance => instance;
+    private static List<NavPoint> navPoints = new List<NavPoint>();
+    private static Dictionary<int, NavPoint> iDToNavPoint = new Dictionary<int, NavPoint>();
+    public static List<NavPoint> NavPoints { get => navPoints; private set => navPoints = value; }
+    public static Dictionary<int, NavPoint> IDToNavPoint { get => iDToNavPoint; private set => iDToNavPoint = value; }
+
+    private void Awake()
     {
-        var i = 0;
-        navPoints = new List<NavPoint>();
-        var navPointsGameObj = GameObject.FindGameObjectsWithTag("Point");
-        foreach (var gameobj in navPointsGameObj)
+        if (instance is null)
+            instance = this;
+        else
         {
-            var navpoint = gameobj.GetComponent<NavPoint>();
-            navpoint.PointId = i; i++;
-            navPoints.Add(navpoint);            
+            Destroy(gameObject);
+            Debug.LogError("Only 1 Instance");
         }
     }
+
+    private void Start()
+    {
+        var navPointSet = GameObject.Find("NavPoint Set");
+        var count = navPointSet.transform.childCount;
+        for (int i=0; i < count; i++)        
+            NavPoints.Add(navPointSet.transform.GetChild(i)
+                .gameObject.GetComponent<NavPoint>());
+
+        NavPointSetToID();
+    }
+
+    private void NavPointSetToID()
+    {
+        int i = 0;
+        foreach (var navPoint in NavPoints)
+        {
+            IDToNavPoint.Add(i, navPoint);
+            navPoint.PointId = i;
+            i++;
+        }
+    }
+
+    public static void AddDeathAttributeToPoints(int startPoint, int endPoint, 
+        float allDistance, float remainingDistance)
+    {
+        var startNavPoint = IDToNavPoint[startPoint];
+        var endNavPoint = IDToNavPoint[endPoint];
+        float coef; 
+        try
+        {
+            coef = remainingDistance / allDistance;
+        }
+        catch (System.ArithmeticException)
+        {
+            Debug.LogError("Path Length is zero");
+            return;
+        }
+        startNavPoint.DeathAttr += 1 - coef;
+        endNavPoint.DeathAttr += coef;
+    }
 }