Adds a TrailsManager to reset all trails after change

Author: omundy

Assets/Editor.meta

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:0df15d5ec15d7f5dfa05bddcb00641eafd780067458f6d16d6b98ce2b2f81c29
-size 34013
+oid sha256:e8c4dc29b13742f215ac9019934bd60b398de58500577a38593b89b40da79ec7
+size 19272

Assets/_Project/Prefabs/PlayerPrefab.prefab

@@ -4,7 +4,7 @@
 
 public class TrailController : MonoBehaviour {
 
-    public TrailRenderer trail;
+    public TrailRenderer trailRenderer;
     public int siblingCount;
     public int trailIndex;
     public float trailWidth;
@@ -23,17 +23,27 @@ public class TrailController : MonoBehaviour {
     };
 
 
+
     private void Awake ()
     {
         // get renderer
-        trail = GetComponent<TrailRenderer> ();
+        trailRenderer = GetComponent<TrailRenderer> ();
+    }
+
+
+
+
+    public void Init ()
+    {
+        //Debug.Log ("Init() called on TrailController");
+
 
         // get random color string 
         trailColor = colors [(int)Random.Range (0, colors.Length - 1)];
         // if hex parses
         if (ColorUtility.TryParseHtmlString ("#" + trailColor + "FF", out color)) {
             // change material color
-            trail.material.color = color;
+            trailRenderer.material.color = color;
         }
 
         // number of siblings (other trails)
@@ -48,16 +58,15 @@ private void Awake ()
         float positionRange = positionMax - positionMin;
 
         // sets positionsByIndex array by number of trails
-        positionsByIndex = new float[siblingCount];
+        positionsByIndex = new float [siblingCount];
 
         // calculate range between each trail
         float trailsRange = positionRange / (siblingCount);
 
         // place trails so the outer edges are touching positionMin and positionMax
-        for (int i = 0; i < siblingCount; i++)
-        {
+        for (int i = 0; i < siblingCount; i++) {
             // starts with positionMin plus an offset that lets the trail edge touch it
-            positionsByIndex[i] = positionMin + (trailsRange * (i + 0.5f)); // the 0.5 places it in the middle of the range, or something
+            positionsByIndex [i] = positionMin + (trailsRange * (i + 0.5f)); // the 0.5 places it in the middle of the range, or something
         }                                                                   // tbh I don't really know, I'm just glad it works
 
         // set the trail width to the range plus a 'lil extra to cover the background
@@ -68,12 +77,12 @@ private void Awake ()
         transform.localPosition = new Vector3 (0, positionsByIndex [trailIndex], 0);
 
         // set w & h
-        trail.startWidth = trailWidth; // 5 = 0.45f
-        trail.endWidth = trailWidth;
+        trailRenderer.startWidth = trailWidth; // 5 = 0.45f
+        trailRenderer.endWidth = trailWidth;
 
         // set vertices
-        trail.numCornerVertices = 10;
-        trail.numCapVertices = 5;
+        trailRenderer.numCornerVertices = 10;
+        trailRenderer.numCapVertices = 5;
 
     }
 

Assets/_Project/Scripts/Effects/TrailController.cs

@@ -0,0 +1,69 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class TrailsManager : MonoBehaviour {
+
+    public int minTrailCount = 3;
+    public int maxTrailCount = 10;
+    public int numberTrails = 0;
+    public GameObject trailPrefab;
+    public Dictionary<string, GameObject> trailDict;
+
+    private void Awake ()
+    {
+        trailDict = new Dictionary<string, GameObject> ();
+
+        // TEMP ADD RANDOM COUNT
+        numberTrails = (int)Random.Range (minTrailCount, maxTrailCount);
+        for (int i = 0; i < numberTrails; i++) {
+            AddTrail (i, false);
+        }
+        // update after a second
+        StartCoroutine (UpdateTrails (1f));
+    }
+
+
+    /**
+     *  Adds the trail at index
+     */
+    void AddTrail (int index, bool updateAll)
+    {
+        // add player to scene
+        GameObject obj = (GameObject)Instantiate (trailPrefab);
+        // create name for trail obj
+        string name = "trail-" + (index + 1).ToString ();
+        // set name in Unity Editor
+        obj.name = name;
+        // parent under this manger
+        obj.transform.parent = gameObject.transform;
+        // if it already exists
+        if (trailDict.ContainsKey (name)) {
+            // update
+            //trailDict.Add (name, obj);
+        } else {
+            // add to dict
+            trailDict.Add (name, obj);
+        }
+
+
+        if (updateAll) StartCoroutine (UpdateTrails (1f));
+    }
+
+
+    /**
+     *  Loop through all the trails to update their positions after trails added or removed
+     */
+    IEnumerator UpdateTrails (float wait)
+    {
+        yield return new WaitForSeconds (wait);
+
+        foreach (string t in trailDict.Keys) {
+            trailDict [t].GetComponent<TrailController> ().Init ();
+        }
+
+    }
+
+
+
+}

Assets/_Project/Scripts/Effects/TrailsManager.cs

@@ -1,5 +1,45 @@
 {
   "dependencies": {
+    "com.unity.2d.animation": {
+      "version": "4.2.6",
+      "depth": 1,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.2d.common": "3.0.1",
+        "com.unity.mathematics": "1.1.0",
+        "com.unity.2d.sprite": "1.0.0",
+        "com.unity.modules.animation": "1.0.0",
+        "com.unity.modules.uielements": "1.0.0"
+      },
+      "url": "https://packages.unity.com"
+    },
+    "com.unity.2d.common": {
+      "version": "3.0.1",
+      "depth": 1,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.2d.sprite": "1.0.0",
+        "com.unity.modules.uielements": "1.0.0"
+      },
+      "url": "https://packages.unity.com"
+    },
+    "com.unity.2d.psdimporter": {
+      "version": "3.1.6",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.2d.common": "3.0.1",
+        "com.unity.2d.animation": "4.2.6",
+        "com.unity.2d.sprite": "1.0.0"
+      },
+      "url": "https://packages.unity.com"
+    },
+    "com.unity.2d.sprite": {
+      "version": "1.0.0",
+      "depth": 1,
+      "source": "builtin",
+      "dependencies": {}
+    },
     "com.unity.collab-proxy": {
       "version": "1.3.8",
       "depth": 0,
@@ -37,6 +77,13 @@
       "dependencies": {},
       "url": "https://packages.unity.com"
     },
+    "com.unity.mathematics": {
+      "version": "1.1.0",
+      "depth": 2,
+      "source": "registry",
+      "dependencies": {},
+      "url": "https://packages.unity.com"
+    },
     "com.unity.render-pipelines.core": {
       "version": "8.2.0",
       "depth": 1,