WIP: NaN error because zero distance

Assembly-CSharp-Editor.csproj

@@ -48,7 +48,7 @@
     <Analyzer Include="/home/pascal/Unity/Hub/Editor/6000.2.13f1/Editor/Data/Tools/Unity.SourceGenerators/Unity.UIToolkit.SourceGenerator.dll" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="Assets/NanoBrain/Editor/GraphEditorWindow.cs" />
+    <Compile Include="Assets/NanoBrain/Editor/NeuroidWindow.cs" />
   </ItemGroup>
   <ItemGroup>
     <Reference Include="UnityEngine">

Assets/NanoBrain/Editor/NeuroidWindow.cs

@@ -3,7 +3,7 @@ using UnityEngine;
 using System.Linq;
 using System.Collections.Generic;
 
-public class Layer {
+public class NeuroidLayer {
     public int ix = 0;
     public List<Neuroid> neuroids = new();
 }
@@ -13,7 +13,7 @@ public class GraphEditorWindow : EditorWindow {
     private List<Neuroid> allNeuroids;
     private Dictionary<Neuroid, Vector2Int> neuroidPositions = new();
 
-    private List<Layer> layers = new();
+    private List<NeuroidLayer> layers = new();
 
     private void OnEnable() {
         EditorApplication.update += EditorUpdate;
@@ -33,7 +33,7 @@ public class GraphEditorWindow : EditorWindow {
         // While there are unvisited neuroid
         while (neuroids.Any(neuroid => !neuronVisited.Contains(neuroid))) {
             // Create the next layer
-            Layer currentLayer = new() { ix = layerIx };
+            NeuroidLayer currentLayer = new() { ix = layerIx };
             int neuroidIx = 0;
 
             foreach (Neuroid neuroid in neuroids) {
@@ -82,7 +82,7 @@ public class GraphEditorWindow : EditorWindow {
         if (currentNeuroid == null)
             return;
 
-        foreach (Layer layer in layers)
+        foreach (NeuroidLayer layer in layers)
             DrawLayer(layer);
         // int column = 100;
         // int row = 200;
@@ -119,7 +119,7 @@ public class GraphEditorWindow : EditorWindow {
     //     }
     // }
 
-    private void DrawLayer(Layer layer) {
+    private void DrawLayer(NeuroidLayer layer) {
         int column = layer.ix * 100;
         int nodeCount = layer.neuroids.Count;
         float maxValue = 0;
@@ -161,7 +161,7 @@ public class GraphEditorWindow : EditorWindow {
 
     private void HandleMouseHover(Neuroid neuroid, Rect rect) {
         // Draw the tooltip
-        GUIContent tooltip = new($"{neuroid.name}\n Value: {neuroid.outputValue}");
+        GUIContent tooltip = new($"{neuroid.name}\n synapse count {neuroid.synapses.Count} \n Value: {neuroid.outputValue}");
         Vector2 mousePosition = Event.current.mousePosition;
 
         // Display tooltip with some offset
@@ -197,8 +197,8 @@ public class GraphEditorWindow : EditorWindow {
 
     }
 
-    [MenuItem("Window/Graph Visualizer")]
+    [MenuItem("Window/Neuroid Visualizer")]
     public static void ShowWindow() {
-        GetWindow<GraphEditorWindow>("Graph Visualizer");
+        GetWindow<GraphEditorWindow>("Neuroid Visualizer");
     }
 }

Assets/NanoBrain/Neuroid.cs

@@ -98,6 +98,10 @@ public class Neuroid {
     }
 
     Vector3 Activation(Vector3 sum) {
+        if (synapses.Count == 0 && mode == Mode.Average)
+            Debug.LogWarning($"{this.id} {this.name} has zero synapses for average");
+        if (float.IsNaN(sum.magnitude))
+            Debug.LogWarning($"{this.id} {this.name} sum is nan");
         return mode switch {
             Mode.Sum => sum,
             Mode.Average => sum / synapses.Count,

Assets/Scenes/Boids/Boids.unity

@@ -373,12 +373,12 @@ MonoBehaviour:
   m_EditorClassIdentifier: Assembly-CSharp::SwarmControl
   speed: 0.5
   inertia: 0.1
-  alignmentForce: 0
+  alignmentForce: 1
   cohesionForce: 10
   separationForce: 5
   separationDistance: 0.5
   bodyForce: 20
-  boundaryForce: 5
+  boundaryForce: 2
   spaceSize: {x: 10, y: 10, z: 10}
   boundaryWidth: {x: 1, y: 1, z: 1}
 --- !u!114 &301943979

Assets/Scenes/Boids/Scripts/Boid.cs

@@ -104,12 +104,9 @@ public class Boid : MonoBehaviour
 
             // outside distances per axis (0 if inside on that axis)
             Vector3 outside = Vector3.Max(Vector3.zero, Vector3.Max(below, above));
-            Vector3 dir = Vector3.zero;
+            float magnitude = outside.magnitude;
-            dir.x = (below.x > 0f) ? 1f : ((above.x > 0f) ? -1f : 0f);
+            Vector3 direction = (sc.transform.position - this.transform.position).normalized;
-            dir.y = (below.y > 0f) ? 1f : ((above.y > 0f) ? -1f : 0f);
+            outside = direction * magnitude;
-            dir.z = (below.z > 0f) ? 1f : ((above.z > 0f) ? -1f : 0f);
-
-            outside = Vector3.Scale(outside, dir);
 
             boundary.SetInput(id, outside, sc.boundaryForce);
             Debug.Log($"boundary {this.transform.position} {outside} force = {outside * sc.boundaryForce}");