update with new higher quality social image

during maximized play, focusing a Boid would cause NullReferenceExceptions as there was no active SceneView in the Unity Editor. Thus, without a SceneView, attempting to acquire one would return null. No test was done prior to acting on the Nullable return.

BUGS.md

@@ -0,0 +1,19 @@
+# bugs
+
+A list of frustrating or curious bugs.
+
+- DrawCircle Function Draw on Incorrect Axis
+    - For a long period of time, I couldn't figure out why my DrawCircle function was only drawing a straight line.
+    I reworked the code, looked online and did everything I could to get the function working before I gave up.
+    A day later, I switched from 2D mode to Freecam mode, and I finally saw it.
+    The circle was drew aligned on the incorrect axis, causing it to appear as a single line.
+    The fix was was just swapping one argument with the next. `(x, 0, y) -> (x, y, 0)`
+- OnCenteringVelocity applied at > 200x correct rate
+    - When I implemented `Time.deltaTime` based velocity calculations, I didn't correct the OnCenteringVelocity implementation.
+    This caused a strange behaviour that looked very similar to a incorrect boundary calculation.
+    I spent some time checking Boundary/Wrapping related code before I forgot it, as I hadn't modified it.
+    It didn't take that long, but I'm still surprised I caught it since the mistake is so small.
+    The error was that since the `Time.deltaTime` value is not multiplied (scaling the 1x multiplier down to 0.02x),
+    the velocity would speed it to an incredible speed for a single frame.
+    This would cause all edge wrapped boids to skip a certain distance to the center of the rectangle which looked like
+    an edge wrapping/boundary error.

Boids/Assembly-CSharp-Editor.csproj.DotSettings

@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=assets_005Ceditor/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

Boids/Assets/Editor/BoidControllerEditor.cs

@@ -0,0 +1,70 @@
+using UnityEditor;
+using UnityEngine;
+
+[CustomEditor(typeof(BoidController))]
+public class BoidControllerEditor : UnityEditor.Editor {
+    public override void OnInspectorGUI() {
+        var controller = (BoidController) target;
+        bool redraw = false;
+
+        // Boid Count update
+        EditorGUI.BeginChangeCheck();
+        controller.boidCount = EditorGUILayout.IntSlider("Boid Count", controller.boidCount, 0, 500);
+        // Check must be performed or Boids will be added outside of gameplay
+        if (EditorGUI.EndChangeCheck() && Application.isPlaying) {
+            int diff = controller.boidCount - controller.boids.Count;
+            if (diff > 1)
+                controller.AddBoids(diff, controller.boids.Count > 15);
+            else if (diff < 0)
+                controller.RemoveBoids(Mathf.Abs(diff));
+        }
+
+        // Basic Boid Controller Attributes
+        EditorGUILayout.MinMaxSlider("Speed Limit", ref controller.minSpeed, ref controller.maxSpeed, 0.01f, 25f);
+        // controller.minSpeed = EditorGUILayout.Slider("Minimum Speed", controller.minSpeed, 0.01f, 25.0f);
+        // controller.maxSpeed = EditorGUILayout.Slider("Maximum Speed", controller.maxSpeed, 0.01f, 25.0f);
+        controller.boundaryForce = EditorGUILayout.Slider("Boundary Force", controller.boundaryForce, 0.25f, 500f);
+        controller.maxSteerForce = EditorGUILayout.Slider("Max Steer Force", controller.maxSteerForce, 1f, 500f);
+
+        EditorGUI.BeginChangeCheck();
+        controller.boidGroupRange = EditorGUILayout.Slider("Group Range", controller.boidGroupRange, 0.01f, 7.5f);
+        controller.boidSeparationRange =
+            EditorGUILayout.Slider("Separation Range", controller.boidSeparationRange, 0.01f, 5.0f);
+        controller.boidFov = EditorGUILayout.Slider("Boid FOV", controller.boidFov, 1f, 360f);
+        redraw = redraw || EditorGUI.EndChangeCheck();
+
+        // Boid Bias Attributes
+        controller.alignmentBias = EditorGUILayout.Slider("Alignment Bias", controller.alignmentBias, 0.001f, 1.5f);
+        controller.cohesionBias = EditorGUILayout.Slider("Cohesion Bias", controller.cohesionBias, 0.001f, 1.5f);
+        controller.separationBias =
+            EditorGUILayout.Slider("Separation Bias", controller.separationBias, 0.001f, 2.5f);
+        controller.boundaryBias = EditorGUILayout.Slider("Boundary Bias", controller.boundaryBias, 0.01f, 1.5f);
+
+        controller.localFlocks = EditorGUILayout.Toggle("Use Groups?", controller.localFlocks);
+        controller.edgeWrapping = EditorGUILayout.Toggle("Enable Wrapping?", controller.edgeWrapping);
+        controller.enableAlignment = EditorGUILayout.Toggle("Enable Alignment?", controller.enableAlignment);
+        controller.enableCohesion = EditorGUILayout.Toggle("Enable Cohesion?", controller.enableCohesion);
+        controller.enableSeparation = EditorGUILayout.Toggle("Enable Separation?", controller.enableSeparation);
+        
+        // Relevant to Focused Boid Rendering
+        EditorGUI.BeginChangeCheck();
+        controller.enableFovChecks = EditorGUILayout.Toggle("Enable FOV?", controller.enableFovChecks);
+        redraw = redraw || EditorGUI.EndChangeCheck();
+        
+        controller.enableBoundary = EditorGUILayout.Toggle("Enable Boundary?", controller.enableBoundary);
+        
+        // Focused Boid Rendering Attributes
+        EditorGUI.BeginChangeCheck();
+        ShapeDraw.CircleVertexCount = EditorGUILayout.IntSlider("Circle Vertex Count", ShapeDraw.CircleVertexCount, 4, 360);
+        ShapeDraw.ArcVertexCount = EditorGUILayout.IntSlider("Arc Vertex Count", ShapeDraw.ArcVertexCount + 2, 3, 360) - 2;
+        ShapeDraw.CircleWidth = EditorGUILayout.Slider("Circle Line Width", ShapeDraw.CircleWidth, 0.01f, 1f);
+        ShapeDraw.ArcWidth = EditorGUILayout.Slider("Arc Line Width", ShapeDraw.ArcWidth, 0.01f, 1f);
+        redraw = redraw || EditorGUI.EndChangeCheck();
+
+        // Inspector elements related to Boid Focusing have changed - redraw!
+        if (redraw && controller.focusedBoid != null)
+            controller.focusedBoid.Draw(true);
+
+        Time.timeScale = EditorGUILayout.Slider("Time Scale", Time.timeScale, 0.02f, 1f);
+    }
+}

Boids/Assets/Editor/BoidEditor.cs

@@ -0,0 +1,24 @@
+using UnityEditor;
+using UnityEngine;
+
+// [CustomEditor(typeof(Boid))]
+// public class BoidEditor : UnityEditor.Editor {
+//     public override void OnInspectorGUI() {
+//         base.OnInspectorGUI();
+//
+//         Boid boid = (Boid) target;
+//         GUILayout.Label($"Boid heading at ({boid.velocity.x}, {boid.velocity.y})");
+//     }
+// }
+
+public class BoidGizmoDrawer {
+    [DrawGizmo(GizmoType.NonSelected | GizmoType.Selected)]
+    static void DrawGizmo(Boid boid, GizmoType gizmoType) {
+        // Simply draw the # of Boids within the perceived flock
+        Handles.Label(boid.transform.position, $"{boid.transform.name}/{boid.latestNeighborhoodCount}");
+        
+        if(boid.isFocused)
+            foreach(Boid flockmate in boid.latestNeighborhood)
+                Handles.DrawDottedLine(boid.transform.position, flockmate.transform.position, 1f);
+    }
+}

Boids/Assets/Editor/BoidEditor.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: f4b27abbe35a49dd946d059c0ebe4cea
+timeCreated: 1590672982

Boids/Assets/Resources/Icons/banner.psd.meta

@@ -0,0 +1,90 @@
+fileFormatVersion: 2
+guid: 24a4da36a55f5154f8359f0e4520bc1d
+TextureImporter:
+  internalIDToNameTable: []
+  externalObjects: {}
+  serializedVersion: 10
+  mipmaps:
+    mipMapMode: 0
+    enableMipMap: 0
+    sRGBTexture: 1
+    linearTexture: 0
+    fadeOut: 0
+    borderMipMap: 0
+    mipMapsPreserveCoverage: 0
+    alphaTestReferenceValue: 0.5
+    mipMapFadeDistanceStart: 1
+    mipMapFadeDistanceEnd: 3
+  bumpmap:
+    convertToNormalMap: 0
+    externalNormalMap: 0
+    heightScale: 0.25
+    normalMapFilter: 0
+  isReadable: 0
+  streamingMipmaps: 0
+  streamingMipmapsPriority: 0
+  grayScaleToAlpha: 0
+  generateCubemap: 6
+  cubemapConvolution: 0
+  seamlessCubemap: 0
+  textureFormat: 1
+  maxTextureSize: 2048
+  textureSettings:
+    serializedVersion: 2
+    filterMode: -1
+    aniso: -1
+    mipBias: -100
+    wrapU: 1
+    wrapV: 1
+    wrapW: 1
+  nPOTScale: 0
+  lightmap: 0
+  compressionQuality: 50
+  spriteMode: 1
+  spriteExtrude: 1
+  spriteMeshType: 1
+  alignment: 0
+  spritePivot: {x: 0.5, y: 0.5}
+  spritePixelsToUnits: 100
+  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
+  spriteGenerateFallbackPhysicsShape: 1
+  alphaUsage: 1
+  alphaIsTransparency: 1
+  spriteTessellationDetail: -1
+  textureType: 8
+  textureShape: 1
+  singleChannelComponent: 0
+  maxTextureSizeSet: 0
+  compressionQualitySet: 0
+  textureFormatSet: 0
+  platformSettings:
+  - serializedVersion: 2
+    buildTarget: DefaultTexturePlatform
+    maxTextureSize: 2048
+    resizeAlgorithm: 0
+    textureFormat: -1
+    textureCompression: 1
+    compressionQuality: 50
+    crunchedCompression: 0
+    allowsAlphaSplitting: 0
+    overridden: 0
+    androidETC2FallbackOverride: 0
+  spriteSheet:
+    serializedVersion: 2
+    sprites: []
+    outline: []
+    physicsShape: []
+    bones: []
+    spriteID: 20a24599605d8f1458a67cb3b687fdfa
+    internalID: 0
+    vertices: []
+    indices: 
+    edges: []
+    weights: []
+    secondaryTextures: []
+  spritePackingTag: 
+  pSDRemoveMatte: 0
+  pSDShowRemoveMatteOption: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Boids/Assets/Scenes/Project.unity

@@ -1252,25 +1252,26 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 7d72224fef7a4fb4a998b0980fe0eb77, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  boidCount: 153
+  boidCount: 244
-  boidGroupRange: 2.69
+  boidGroupRange: 3.29
-  boidStartVelocity: 0.05
+  minSpeed: 9.225757
-  boidVelocityLimit: 0.3
+  maxSpeed: 9.225757
   globalBias: 1
-  separationBias: 0.014
+  separationBias: 1.95
-  alignmentBias: 0.194
+  alignmentBias: 0.288
-  cohesionBias: 0.05
+  cohesionBias: 0.296
-  boundaryBias: 0.063
+  boundaryBias: 1.5
   enableSeparation: 1
   enableAlignment: 1
   enableCohesion: 1
   enableBoundary: 1
-  boidSeparationRange: 5
+  enableFovChecks: 1
-  boundaryForce: 0.352
+  boidSeparationRange: 1.4
+  boundaryForce: 50
   localFlocks: 1
   edgeWrapping: 1
-  circleVertexCount: 360
+  maxSteerForce: 383
-  circleWidth: 0.1
+  boidFov: 239
   focusedBoid: {fileID: 0}
   boidObject: {fileID: 1737515784064720040, guid: 23e1eaaf69d4ef342ac3ef9590f6c642,
     type: 3}
@@ -3522,7 +3523,7 @@ RectTransform:
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
   m_AnchorMin: {x: 1, y: 1}
   m_AnchorMax: {x: 1, y: 1}
-  m_AnchoredPosition: {x: -22.099976, y: -23.8}
+  m_AnchoredPosition: {x: -22.099976, y: -23.800049}
   m_SizeDelta: {x: 25, y: 25}
   m_Pivot: {x: 0.5, y: 0.5}
 --- !u!114 &945635207
@@ -4121,7 +4122,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 1165952970}
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
-  m_LocalPosition: {x: -2.3479285, y: -7.3538084, z: -1779.8757}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 0}

Boids/Assets/Scripts.meta

@@ -1,3 +1,3 @@
 fileFormatVersion: 2
-guid: b50106a18d564518ba59ebb42e02f619
+guid: 5a23673acb15433ea9f977712582464f
-timeCreated: 1589861330
+timeCreated: 1591398022

Boids/Assets/Scripts/AdjustmentsHandler.cs

@@ -81,7 +81,7 @@ public class AdjustmentsHandler : MonoBehaviour {
                 // Calculate diff, formally add/remove boids
                 int diff = controller.boidCount - controller.boids.Count;
                 if(diff > 0)
-                    controller.AddBoids(diff);
+                    controller.AddBoids(diff, controller.boidCount > 5);
                 else if(diff < 0)
                     controller.RemoveBoids(diff * -1);
                 

Boids/Assets/Scripts/Boid.cs

@@ -1,70 +1,111 @@
-using System;
+using System.Collections.Generic;
-using System.Collections.Generic;
 using System.Linq;
-using System.Runtime.CompilerServices;
 using UnityEngine;
-using Random = UnityEngine.Random;
 
-// Boids are represented by a moving, rotating triangle.
-// Boids should communicate with sibling Boids
 public class Boid : MonoBehaviour {
-    [NonSerialized] private Vector2 _position = Vector2.zero;
+    // Basic Boid Physics Attributes
-    [NonSerialized] private Vector2 _velocity;
+    private Vector2 _position = Vector2.zero;
-    [NonSerialized] private bool _isWrappingX = false;
+    public Vector2 velocity;
-    [NonSerialized] private bool _isWrappingY = false;
+
-    [NonSerialized] private Renderer[] _renderers;
+    // Wrapping related attributes
-    [NonSerialized] private Vector2 _centeringVelocity;
+    private bool _isWrappingX;
-    [NonSerialized] private int _latestNeighborhoodCount = 0;
+    private bool _isWrappingY;
-    [NonSerialized] private BoidController _parent;
+    private Vector2 _centeringVelocity;
-    [NonSerialized] public bool isFocused = false;
+
+    // Used for tracking Gizmo drawing
+    public int latestNeighborhoodCount = 0;
+    public List<Boid> latestNeighborhood;
+
+    // Parent Boid Controller
+    private BoidController _parent;
+
+    public bool isFocused; // Whether or not the current Boid is focused
+    private LineRenderer[] _lineRenderers; // Store LineRenderers used by Focused Boids
 
     private void Start() {
         _parent = transform.parent
             .GetComponent<BoidController>(); // Parent used to perform physics math without caching
-        _renderers = transform.GetComponents<Renderer>(); // Acquire Renderer(s) to check for Boid visibility
+        velocity = Util.GetRandomVelocity(Random.Range(_parent.minSpeed, _parent.maxSpeed));
-        _velocity = Util.GetRandomVelocity(_parent.boidStartVelocity); // Acquire a Velocity Vector with a magnitude
         _position = transform.position; // Track 2D position separately
         transform.name = $"Boid {transform.GetSiblingIndex()}"; // Name the Game Object so Boids can be tracked somewhat
     }
 
     private void Update() {
         // Updates the rotation of the object based on the Velocity
-        transform.rotation = Quaternion.Euler(0, 0, Mathf.Rad2Deg * -Mathf.Atan2(_velocity.x, _velocity.y));
+        transform.eulerAngles = new Vector3(0, 0, Mathf.Rad2Deg * -Mathf.Atan2(velocity.x, velocity.y));
 
         // Skip Flock Calculations if wrapping in progress
         if (_isWrappingX || _isWrappingY) {
             UpdateCenteringVelocity();
-            _position += _centeringVelocity;
+            _position += _centeringVelocity * Time.deltaTime;
             transform.position = _position;
         }
         else {
-            List<Boid> flock = _parent.localFlocks ? GetFlock(_parent.boids, _parent.boidGroupRange) : _parent.boids;
+            velocity = GetVelocity();
-            _latestNeighborhoodCount = flock.Count;
+            _position += velocity * Time.deltaTime;
-
+            transform.position = _position;
-            // Calculate all offsets and multiple by magnitudes given
-            if (flock.Count > 0) {
-                if (_parent.enableCohesion)
-                    _velocity += Rule1(flock) * _parent.cohesionBias;
-                if (_parent.enableSeparation)
-                    _velocity += Rule2(flock) * _parent.separationBias;
-                if (_parent.enableAlignment)
-                    _velocity += Rule3(flock) * _parent.alignmentBias;
-            }
-
-            if (_parent.enableBoundary && _parent.Boundary.Contains(_position))
-                _velocity += RuleBound() * _parent.boundaryBias;
-
-            // Limit the Velocity Vector to a certain Magnitude
-            _velocity = Util.MaxVelocity(_velocity, _parent.boidVelocityLimit);
-
-            _position += _velocity;
-            transform.position = new Vector3(_position.x, _position.y, 0);
         }
 
+        // Perform edge wrapping
         if (_parent.edgeWrapping)
             Wrapping();
     }
 
+    /// <summary>
+    /// Gets Velocity used to move Boid with all current rules and velocity
+    /// </summary>
+    /// <returns>new current Vector2 velocity</returns>
+    public Vector2 GetVelocity() {
+        // Find local neighborhood flock
+        Vector2 acceleration = Vector2.zero;
+        List<Boid> flock;
+
+        if (_parent.localFlocks)
+            flock = GetFlock(_parent.boids, _parent.boidGroupRange);
+        else
+            flock = _parent.boids;
+        
+        latestNeighborhoodCount = flock.Count;
+
+        // Only update latest neighborhood when we need it for focused boid Gizmo draws
+        if (isFocused)
+            latestNeighborhood = flock;
+
+        // Calculate all offsets and multiple by magnitudes given
+        if (flock.Count > 0) {
+            if (_parent.enableCohesion)
+                acceleration += SteerTowards(Rule1(flock)) * _parent.cohesionBias;
+            if (_parent.enableSeparation)
+                acceleration += SteerTowards(Rule2(flock)) * _parent.separationBias;
+            if (_parent.enableAlignment)
+                acceleration += SteerTowards(Rule3(flock)) * _parent.alignmentBias;
+        }
+
+        if (_parent.enableBoundary && !_parent.Boundary.Contains(_position)) {
+            acceleration += SteerTowards(RuleBound()) * _parent.boundaryBias;
+        }
+
+        // Limit the Velocity Vector to a certain Magnitude
+        Vector2 newVelocity = velocity +  acceleration * Time.deltaTime;
+        float speed = newVelocity.magnitude;
+        Vector2 dir = newVelocity / speed;
+        speed = Mathf.Clamp(speed, _parent.minSpeed, _parent.maxSpeed);
+        return dir * speed;
+    }
+
+    /// <summary>
+    /// Assists with clamping and normalizing a Vector2 force
+    /// </summary>
+    /// <param name="vector">Force Vector being applied by a rule</param>
+    /// <returns>Vector2 force to be applied</returns>
+    private Vector2 SteerTowards(Vector2 vector) {
+        Vector2 v = vector.normalized * _parent.maxSpeed - velocity;
+        return Vector2.ClampMagnitude(v, _parent.maxSteerForce);
+    }
+
+    /// <summary>
+    /// Runs edge wrapping logic for detecting and wrapping Boids
+    /// </summary>
     private void Wrapping() {
         if (!_parent.Space.Contains(_position)) {
             // Activate Wrap, Move
@@ -95,9 +136,9 @@ public class Boid : MonoBehaviour {
 
     // When Wrapping, this Velocity directs the Boid to the center of the Rectangle
     private void UpdateCenteringVelocity() {
-        _centeringVelocity = Util.RotateBy(new Vector2(_parent.boidVelocityLimit, _parent.boidVelocityLimit),
+        _centeringVelocity = Util.RotateBy(new Vector2(_parent.maxSpeed, _parent.maxSpeed),
             Vector2.Angle(_position, _parent.Space.center));
-        _centeringVelocity = Util.MaxVelocity(_parent.Space.center - _position, _parent.boidVelocityLimit / 2.0f);
+        _centeringVelocity = Util.MaxVelocity(_parent.Space.center - _position, _parent.maxSpeed / 2.0f);
     }
 
     // Cohesion: Steer towards center of mass of flock
@@ -128,9 +169,9 @@ public class Boid : MonoBehaviour {
 
         Vector2 perceived = Vector2.zero;
         foreach (Boid boid in flock)
-            perceived += boid._velocity;
+            perceived += boid.velocity;
         perceived /= flock.Count;
-        return (perceived - _velocity) / 8.0f;
+        return (perceived - velocity) / 8.0f;
     }
 
     // Asks Boids to stay within the Boundaries set
@@ -158,25 +199,52 @@ public class Boid : MonoBehaviour {
 
     // Returns a list of boids within a certain radius of the Boid, representing it's local 'flock'
     private List<Boid> GetFlock(List<Boid> boids, float radius) {
-        return boids.Where(boid => boid != this && Vector2.Distance(this._position, boid._position) <= radius).ToList();
+        List<Boid> flock = new List<Boid>();
+
+        foreach (Boid boid in boids) {
+            // Distance Check
+            if (boid == this || Vector2.Distance(this._position, boid._position) > radius)
+                continue;
+
+            // FOV Check
+            if (_parent.enableFovChecks) {
+                float angle1 = Util.Vector2ToAngle(velocity); // Current Heading
+                float angle2 =
+                    Util.AngleBetween(transform.position, boid.transform.position); // Angle between Boid and other Boid
+
+                // Outside of FOV range, skip
+                if (Mathf.Abs(Mathf.DeltaAngle(angle1, angle2)) > _parent.boidFov / 2)
+                    continue;
+            }
+
+            // Boid passed all checks, add to local Flock list
+            flock.Add(boid);
+        }
+
+        return flock;
     }
 
     // Sets up a Boid to be 'Focused', adds Circles around object and changes color
     public void EnableFocusing() {
         if (isFocused) {
-            Debug.LogWarning("enableFocusing called on previously focused Boid");
+            Debug.LogWarning($"enableFocusing called on previously focused Boid ({transform.name})");
             return;
         }
 
         isFocused = true;
 
+        // Create all LineRenderers
+        _lineRenderers = new LineRenderer[3];
+        _lineRenderers[0] = GetLineRenderer("Group Range");
+        _lineRenderers[1] = GetLineRenderer("Separation Range");
+        _lineRenderers[2] = GetLineRenderer("FOV Arc");
+
         // Update Mesh Material Color
         var triangle = transform.GetComponent<Triangle>();
         triangle.meshRenderer.material.color = Color.red;
 
-        // Add a LineRenderer for Radius Drawing
+        // Draw all focus related elements
-        DrawCircle(_parent.boidSeparationRange, "Separation Range Circle");
+        Draw(false);
-        DrawCircle(_parent.boidGroupRange, "Group Range Circle");
     }
 
     // Disable focusing, removing LineRenderers and resetting color
@@ -187,35 +255,82 @@ public class Boid : MonoBehaviour {
         var oldTriangle = transform.GetComponent<Triangle>();
         oldTriangle.meshRenderer.material.color = new Color32(49, 61, 178, 255);
 
+
         // Destroy Line Renderers (and child GameObjects)
-        foreach (Transform child in transform)
+        for (int i = 0; i < _lineRenderers.Length; i++) {
-            Destroy(child.gameObject);
+            _lineRenderers[i].positionCount = 0;
+            DestroyImmediate(_lineRenderers[i].gameObject);
+            _lineRenderers[i] = null;
+        }
     }
 
-    private void DrawCircle(float radius, string childName) {
+    /// <summary>
-        // Create a new child GameObject to hold the LineRenderer Component
+    /// returns a new LineRenderer component stored on a child GameObject.
+    /// </summary>
+    /// <param name="childName">The name of the associated child GameObject</param>
+    /// <returns>A LineRenderer</returns>
+    public LineRenderer GetLineRenderer(string childName) {
         var child = new GameObject(childName);
+        // Make object a child of Boid, set position as such
         child.transform.SetParent(transform);
         child.transform.position = transform.position;
-        var line = child.AddComponent<LineRenderer>();
+        // add and return LineRenderer component
+        return child.AddComponent<LineRenderer>();
+    }
 
-        _parent.circleVertexCount = 360;
+    /// <summary>
+    /// Draw (or re-draw) all lines corresponding to separation and group circles and FOV Arc
+    /// </summary>
+    /// <param name="redraw"><c>true</c> if draw operation should be treated as a re-draw</param>
+    public void Draw(bool redraw) {
+        // Clear positions when redrawing
+        if (redraw)
+            foreach (LineRenderer lineRenderer in _lineRenderers)
+                lineRenderer.positionCount = 0;
 
-        // Setup LineRenderer properties
+        // Add a LineRenderer for Radius Drawing
-        line.useWorldSpace = false;
+        if (_parent.enableFovChecks)
-        line.startWidth = _parent.circleWidth;
+            ShapeDraw.DrawArc(_lineRenderers[2], _parent.boidFov, _parent.boidGroupRange); // FOV Arc
-        line.endWidth = _parent.circleWidth;
+        else
-        line.positionCount = _parent.circleVertexCount + 1;
+            ShapeDraw.DrawCircle(_lineRenderers[0], _parent.boidGroupRange); // Group Circle
+        ShapeDraw.DrawCircle(_lineRenderers[1], _parent.boidSeparationRange); // Separation Circle
 
-        // Calculate points for circle
+        if (_parent.enableFovChecks) {
-        var pointCount = _parent.circleVertexCount + 1;
+            // Set FOV Arc rotation to mimic Boid transform rotation
-        var points = new Vector3[pointCount];
+            _lineRenderers[2].transform.rotation = transform.rotation;
-        for (int i = 0; i < pointCount; i++) {
+            _lineRenderers[2].transform.Rotate(0, 0, _parent.boidFov / 2f);
-            var rad = Mathf.Deg2Rad * (i * 360f / _parent.circleVertexCount);
+        }
-            points[i] = new Vector3(Mathf.Sin(rad) * radius, Mathf.Cos(rad) * radius, 0);
+    }
+
+    /// <summary>
+    /// Return a random position nearby a certain distance away
+    /// </summary>
+    /// <param name="distance">Vector2 position</param>
+    /// <returns></returns>
+    public Vector2 GetNearby(float distance) {
+        return _position + Util.RotateBy(new Vector2(distance, distance),
+            Random.Range(0f, 360f));
+    }
+
+    public Boid GetClosestBoid() {
+        if (_parent.boids.Count <= 1)
+            return null;
+        
+        Boid best = _parent.boids[0];
+        float curDistSqr = Mathf.Infinity;
+        
+        foreach (Boid potential in _parent.boids) {
+            if (potential == this)
+                continue;
+            
+            Vector2 diff = potential._position - _position;
+            var diffSqrMag = diff.sqrMagnitude;
+            if (diffSqrMag < curDistSqr) {
+                curDistSqr = diffSqrMag;
+                best = potential;
+            }
         }
 
-        // Add points to LineRenderer
+        return best;
-        line.SetPositions(points);
     }
 }

Boids/Assets/Scripts/BoidController.cs

@@ -1,57 +1,54 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using UnityEditor;
 using UnityEngine;
-using Debug = System.Diagnostics.Debug;
 using Random = UnityEngine.Random;
 
 public class BoidController : MonoBehaviour {
-    // Controller Attributes
-    [NonSerialized] public Rect Space;
-    [NonSerialized] public Rect Boundary;
 
+    // Manually managed/set
+    public GameObject boidObject; // Boid Object Prefab
+    
     // Swarm Attributes
-    public int boidCount = 50;
+    public int boidCount = 250;
-    public float boidGroupRange = 1.0f;
+    public float boidGroupRange = 3.3f;
-    public float boidStartVelocity = 0.005f;
+    public float minSpeed;
-    [SerializeField] public float boidVelocityLimit = 1.0f;
+    public float maxSpeed;
 
     // Boid Rules are multiplied by this to allow rule 'tweaking'
-    [SerializeField] public float globalBias = 1.0f;
+    public float globalBias = 1.0f;
-    [SerializeField] public float separationBias = 0.05f;
+    public float separationBias = 2f;
-    [SerializeField] public float alignmentBias = 0.05f;
+    public float alignmentBias = 0.288f;
-    [SerializeField] public float cohesionBias = 0.05f;
+    public float cohesionBias = 0.3f;
-    [SerializeField] public float boundaryBias = 1f;
+    public float boundaryBias = 1.5f;
 
     // Enable/Disable Boid Rules Altogether
-    [SerializeField] public bool enableSeparation = true;
+    public bool enableSeparation = true;
-    [SerializeField] public bool enableAlignment = true;
+    public bool enableAlignment = true;
-    [SerializeField] public bool enableCohesion = true;
+    public bool enableCohesion = true;
-    [SerializeField] public bool enableBoundary = true;
+    public bool enableBoundary = true;
+    public bool enableFovChecks = true;
 
-    [SerializeField] public float boidSeparationRange = 2.3f; // Boid Separation rule's activation distance
+    public float boidSeparationRange = 1.4f; // Boid Separation rule's activation distance
-    [SerializeField] public float boundaryForce = 10f; // The force applied when a Boid hits the boundary
+    public float boundaryForce = 50f; // The force applied when a Boid hits the boundary
-    [SerializeField] public bool localFlocks = true; // Calculate Local 'Neighborhood' for flocks?
+    public bool localFlocks = true; // Calculate Local 'Neighborhood' for flocks?
-    [SerializeField] public bool edgeWrapping = true; // Enforce Edge Wrapping
+    public bool edgeWrapping = true; // Enforce Edge Wrapping
-    [SerializeField] public int circleVertexCount = 40; // The number of vertices for circles displayed
+    public float maxSteerForce = 400f;
-    [SerializeField] public float circleWidth = 0.1f; // Width of circle
+    public float boidFov = 240;
 
-
+    // Runtime Controller Attributes
-    public Boid focusedBoid; // A focused Boid has special rendering
-    public GameObject boidObject; // Boid Object Prefab
     [NonSerialized] public List<Boid> boids = new List<Boid>(); // Boid Objects for Updates
+    [NonSerialized] public Rect Space;
+    [NonSerialized] public Rect Boundary;
     [NonSerialized] public Camera Cam; // Used for wrapping detection
+    public Boid focusedBoid; // A focused Boid has special rendering
 
     private void OnDrawGizmos() {
         // Draw a Wire Cube for the Rectangle Area
         Gizmos.DrawWireCube(Space.center, Space.size);
         Gizmos.DrawWireCube(Boundary.center, Boundary.size);
 
-#if UNITY_EDITOR
-        if (focusedBoid != null)
-            Handles.DrawWireDisc(focusedBoid.transform.position, Vector3.forward, boidGroupRange);
-#endif
-
         if (Cam == null)
             return;
 
@@ -71,38 +68,81 @@ public class BoidController : MonoBehaviour {
             if (focusedBoid != null)
                 focusedBoid.DisableFocusing();
 
+            // Pick a Boid randomly and enable focusing
             focusedBoid = boids[Random.Range(0, boids.Count)];
             focusedBoid.EnableFocusing();
         }
+        
+        // Focus on the boid in scene view when one is focused
+        #if UNITY_EDITOR
+        if(focusedBoid != null && SceneView.lastActiveSceneView != null)
+            SceneView.lastActiveSceneView.LookAtDirect(focusedBoid.transform.position, Quaternion.identity);
+        #endif
     }
 
     private void Start() {
+        SetupCamera();
+        AddBoids(boidCount);
+
+        StartCoroutine(LateStart());
+    }
+
+    private IEnumerator LateStart() {
+        yield return new WaitForSecondsRealtime(0.5f);
+
+        for (int i = 0; i < 100; i++) {
+            foreach (Boid boid in boids)
+                boid.velocity = boid.GetVelocity();
+        }
+    }
+
+    /// <summary>
+    /// Utility function for setting up Camera and Boundary related variables.
+    /// </summary>
+    private void SetupCamera() {
         // Setup Camera
         Cam = Camera.main;
 
+        // Assert that there is an active camera
+        Debug.Assert(Cam != null, nameof(Cam) + " != null");
+        
         // Size the Rectangle based on the Camera's Orthographic View
         float height = 2f * Cam.orthographicSize;
         var size = new Vector2(height * Cam.aspect, height);
         Space = new Rect((Vector2) transform.position - size / 2, size);
-        Boundary = new Rect(Vector2.zero, Space.size * 0.95f);
+        Boundary = new Rect(Vector2.zero, Space.size * 0.90f);
         Boundary.center = Space.center;
-
-        AddBoids(boidCount);
     }
 
-    public void AddBoids(int n) {
+    /// <summary>
+    /// Adds a number of boids.
+    /// </summary>
+    /// <param name="n">Number of Boids to add</param>
+    /// <param name="useNearby">Spawn Boids nearby each other</param>
+    public void AddBoids(int n, bool useNearby = false) {
+        // Skip if negative or zero
+        if (n <= 0)
+            return;
+        
         for (int i = 0; i < n; i++) {
             // Instantiate a Boid prefab within the boundaries randomly
-            Vector2 position = RandomPosition() * 0.95f;
+            Vector2 position = useNearby ? RandomNearbyPosition() : RandomPosition() * 0.90f;
-            GameObject boid = Instantiate(boidObject, position, Quaternion.identity);
+            GameObject boidGO = Instantiate(boidObject, position, Quaternion.identity);
 
             // Set parent, add Boid component to Boids list
-            boid.transform.parent = transform;
+            boidGO.transform.parent = transform;
-            boids.Add(boid.GetComponent<Boid>());
+            var boid = boidGO.GetComponent<Boid>();
+            
+            boids.Add(boid);
         }
     }
 
+    /// <summary>
+    /// Removes a number of boids.
+    /// </summary>
+    /// <param name="n">Number of Boids to Remove</param>
     public void RemoveBoids(int n) {
+        // If there are still Boids to remove and the number left to remove is more than 1 (post-decrementing)
         while (n-- > 0 && boids.Count >= 1) {
             int index = Random.Range(0, boids.Count - 1);
 
@@ -117,15 +157,47 @@ public class BoidController : MonoBehaviour {
         }
     }
 
+    /// <summary>
+    /// Remove a Boid at a specific index in the Boids array.
+    /// </summary>
+    /// <param name="index"></param>
     private void RemoveBoid(int index) {
         Boid boid = boids[index];
         boids.RemoveAt(index);
         Destroy(boid.transform.gameObject);
     }
 
+    /// <summary>
+    /// Returns a random valid Boid position
+    /// </summary>
+    /// <returns>A Vector2 position within the Boid boundary area</returns>
     private Vector2 RandomPosition() {
         return new Vector2(
             Random.Range(-Boundary.size.x, Boundary.size.x) / 2,
             Random.Range(-Boundary.size.y, Boundary.size.y) / 2);
     }
+
+    /// <summary>
+    /// Returns a random valid position near a Boid
+    /// </summary>
+    /// <returns>A Vector2 position within the set boundaries</returns>
+    private Vector2 RandomNearbyPosition(int maxRetries = 5) { 
+        for (int i = 0; i < maxRetries; i++) {
+            Vector2 possible = RandomBoid().GetNearby(boidSeparationRange);
+            if (Boundary.Contains(possible))
+                return possible;
+        }
+
+        // if MaxRetries exceeded, fall back to RandomPosition()
+        Debug.Log($"{maxRetries} retries failed, falling back to RandomPosition");
+        return RandomPosition();
+    }
+
+    /// <summary>
+    /// Returns a random Boid
+    /// </summary>
+    /// <returns></returns>
+    public Boid RandomBoid() {
+        return boids[Random.Range(0, boids.Count - 1)];
+    }
 }

Boids/Assets/Scripts/BoidControllerEditor.cs

@@ -1,48 +0,0 @@
-#if UNITY_EDITOR
-using UnityEditor;
-using UnityEngine;
-
-[CustomEditor(typeof(BoidController))]
-public class BoidControllerEditor : Editor {
-    public override void OnInspectorGUI() {
-        var controller = (BoidController) target;
-        
-        // Boid Count update
-        EditorGUI.BeginChangeCheck();
-        controller.boidCount = EditorGUILayout.IntSlider("Boid Count", controller.boidCount, 1, 500);
-        // Check must be performed or Boids will be added outside of gameplay
-        if (EditorGUI.EndChangeCheck() && Application.isPlaying) {
-            int diff = controller.boidCount - controller.boids.Count;
-            if (diff > 1)
-                controller.AddBoids(diff);
-            else if (diff < 0)
-                controller.RemoveBoids(Mathf.Abs(diff));
-        }
-
-        // Basic Boid Controller Attributes
-        controller.boidGroupRange = EditorGUILayout.Slider("Group Range", controller.boidGroupRange, 0.01f, 7.5f);
-        controller.boidStartVelocity = EditorGUILayout.Slider("Start Velocity", controller.boidStartVelocity, 0.01f, 5.0f);
-        controller.boidVelocityLimit = EditorGUILayout.Slider("Max Velocity", controller.boidVelocityLimit, 0.01f, 5.0f);
-        controller.boidSeparationRange = EditorGUILayout.Slider("Separation Range", controller.boidSeparationRange, 0.01f, 5.0f);
-        controller.boundaryForce = EditorGUILayout.Slider("Boundary Force", controller.boundaryForce, 0.25f, 1f);
-        
-        // Boid Bias Attributes
-        controller.alignmentBias = EditorGUILayout.Slider("Alignment Bias", controller.alignmentBias, 0.001f, 0.5f);
-        controller.cohesionBias = EditorGUILayout.Slider("Cohesion Bias", controller.cohesionBias, 0.001f, 0.5f);
-        controller.separationBias = EditorGUILayout.Slider("Separation Bias", controller.separationBias, 0.001f, 0.5f);
-        controller.boundaryBias = EditorGUILayout.Slider("Boundary Bias", controller.boundaryBias, 0.01f, 0.5f);
-
-        controller.localFlocks = EditorGUILayout.Toggle("Use Groups?", controller.localFlocks);
-        controller.edgeWrapping = EditorGUILayout.Toggle("Enforce Wrapping?", controller.edgeWrapping);
-
-        controller.enableAlignment = EditorGUILayout.Toggle("Enable Alignment?", controller.enableAlignment);
-        controller.enableCohesion = EditorGUILayout.Toggle("Enable Cohesion?", controller.enableCohesion);
-        controller.enableSeparation = EditorGUILayout.Toggle("Enable Separation?", controller.enableSeparation);
-        controller.enableBoundary = EditorGUILayout.Toggle("Enable Boundary?", controller.enableBoundary);
-
-        // Boid Rendering
-        controller.circleVertexCount = EditorGUILayout.IntSlider("Circle Vertex Count", controller.circleVertexCount, 4, 360);
-        controller.circleWidth = EditorGUILayout.Slider("Circle Line Width", controller.circleWidth, 0.01f, 1f);
-    }
-}
-#endif

Boids/Assets/Scripts/ShapeDraw.cs

@@ -0,0 +1,70 @@
+using UnityEngine;
+
+/// <summary>
+/// A simple static utility class that assists with drawing shapes using the <c>LineRenderer</c> class.
+/// </summary>
+public static class ShapeDraw {
+    // Line width of the Circle and Arc
+    public static float CircleWidth = 0.1f;
+    public static float ArcWidth = 0.1f;
+    // Vertex count for Circle and Arc - the precision or detail level the curves have
+    // Low vertex counts are mostly unnoticeable until < 30 vertexes, where eventually squares and triangles appear
+    public static int CircleVertexCount = 180;
+    public static int ArcVertexCount = 90;
+
+    /// <summary>
+    /// Draw a Arc aimed straight up with a certain angle width and radius.
+    /// This Arc is not direct at any specific angle and start from 0 degrees and ends at <c>angle</c> degrees.
+    /// You should rotate the <c>LineRenderer</c> to direct it at a specific point.
+    /// </summary>
+    /// <param name="lineRenderer">The LineRenderer to draw the Arc upon.</param>
+    /// <param name="angle">Angle (width) of the Arc</param>
+    /// <param name="radius">Radius of the Arc</param>
+    public static void DrawArc(LineRenderer lineRenderer, float angle, float radius) {
+        // Setup LineRenderer properties
+        lineRenderer.useWorldSpace = false;
+        lineRenderer.startWidth = ArcWidth;
+        lineRenderer.endWidth = ArcWidth;
+        lineRenderer.positionCount = ArcVertexCount + 1 + 2;
+
+        // Calculate points for circle
+        var pointCount = ArcVertexCount + 1;
+        var points = new Vector3[pointCount + 2];
+        
+        // Generate all points
+        for (int i = 0; i < pointCount; i++) {
+            var rad = Mathf.Deg2Rad * Mathf.Lerp(0, angle, (float) i / pointCount);
+            points[i + 1] = new Vector3(Mathf.Sin(rad), Mathf.Cos(rad), 0) * radius;
+        }
+
+        points[0] = new Vector3(0, 0, 0);
+        points[points.Length - 1] = points[0];
+
+        // Add points to LineRenderer
+        lineRenderer.SetPositions(points);
+    }
+
+    /// <summary>
+    /// Draw a Circle with a specific radius and number of vertexes (detail level)
+    /// </summary>
+    /// <param name="lineRenderer">The LineRenderer to draw the Circle upon</param>
+    /// <param name="radius">Radius of the Circle</param>
+    public static void DrawCircle(LineRenderer lineRenderer, float radius) {
+        // Setup LineRenderer properties
+        lineRenderer.useWorldSpace = false;
+        lineRenderer.startWidth = CircleWidth;
+        lineRenderer.endWidth = CircleWidth;
+        lineRenderer.positionCount = CircleVertexCount + 1;
+
+        // Calculate points for circle
+        var pointCount = CircleVertexCount + 1;
+        var points = new Vector3[pointCount];
+        for (int i = 0; i < pointCount; i++) {
+            var rad = Mathf.Deg2Rad * (i * 360f / CircleVertexCount);
+            points[i] = new Vector3(Mathf.Sin(rad) * radius, Mathf.Cos(rad) * radius, 0);
+        }
+
+        // Add points to LineRenderer
+        lineRenderer.SetPositions(points);
+    }
+}

Boids/Assets/Scripts/ShapeDraw.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 09004a14b18b4662898d7e1cc0bc6f24
+timeCreated: 1591398023

Boids/Assets/Scripts/UIController.cs

@@ -76,8 +76,8 @@ public class UIController : MonoBehaviour {
 
     private void Start() {
         // Set Target Application Framerate
-        Application.targetFrameRate = 90;
+        // Application.targetFrameRate = 90;
-        
+
         // Basic variable setup
         _currentUI = UIStance.Title;
         _scaler = canvas.GetComponent<CanvasScaler>();
@@ -116,7 +116,15 @@ public class UIController : MonoBehaviour {
     private void Update() {
         // on Escape key, attempts to change UI stance to the Title Screen
         if (Input.GetKeyDown(KeyCode.Escape))
-            ChangeStance(UIStance.Title);
+            if (_currentUI == UIStance.PlayHidden)
+                ChangeStance(UIStance.PlayAdjust);
+            else
+                ChangeStance(UIStance.Title);
+        else if (Input.GetKeyDown(KeyCode.LeftAlt))
+            if (_currentUI == UIStance.PlayAdjust)
+                ChangeStance(UIStance.PlayHidden);
+            else if (_currentUI == UIStance.PlayHidden)
+                ChangeStance(UIStance.PlayAdjust);
     }
 
     /// <summary>
@@ -170,12 +178,12 @@ public class UIController : MonoBehaviour {
                     ShowBoidsTitle(true);
             }
         }
-        // Settings/About/Play -> Title
+        // Settings/About/PlayAdjust -> Title
         else if (stance == UIStance.Title) {
             MoveElements(UIGroup.TitleScreen, false);
             if (_currentUI == UIStance.PlayAdjust) {
                 MoveElements(UIGroup.AdjustmentsScreen, true);
-                if(!showBoidsOnTitleToggle.isOn)
+                if (!showBoidsOnTitleToggle.isOn)
                     ShowBoidsTitle(false);
             }
             else if (_currentUI == UIStance.Settings)
@@ -183,6 +191,14 @@ public class UIController : MonoBehaviour {
             else if (_currentUI == UIStance.About)
                 MoveElements(UIGroup.AboutScreen, true);
         }
+        // PlayAdjust -> PlayHidden
+        else if (stance == UIStance.PlayHidden && _currentUI == UIStance.PlayAdjust) {
+            MoveElements(UIGroup.AdjustmentsScreen, true);
+        }
+        // PlayHidden -> PlayAdjust
+        else if (stance == UIStance.PlayAdjust && _currentUI == UIStance.PlayHidden) {
+            MoveElements(UIGroup.AdjustmentsScreen, false);
+        }
 
         _currentUI = stance;
     }
@@ -219,8 +235,8 @@ public class UIController : MonoBehaviour {
                 GameObject adjPanelGo;
                 LeanTween
                     .move((adjPanelGo = adjPanel.gameObject),
-                        adjPanelGo.transform.position + _adjustmentsDiff * (away ? 1 : -1), 1.15f)
+                        adjPanelGo.transform.position + _adjustmentsDiff * (away ? 1 : -1), away ? 0.9f : 1.15f)
-                    .setDelay(away ? 0f : 0.15f)
+                    .setDelay(away ? 0f : 0.05f)
                     .setEase(LeanTweenType.easeInOutCubic)
                     .setOnComplete(StartTween());
                 break;
@@ -245,7 +261,7 @@ public class UIController : MonoBehaviour {
 
     private void ShowBoidsTitle(bool active) {
         ShowBoids(active);
-        
+
         // Works somewhat close to what is needed, but needs a fix.
         // if (!active) {
         //     print("Fading out");
@@ -262,7 +278,7 @@ public class UIController : MonoBehaviour {
     }
 
     private void ShowBoids(bool show) {
-        foreach(MeshRenderer meshRenderer in boidController.gameObject.GetComponentsInChildren<MeshRenderer>())
+        foreach (MeshRenderer meshRenderer in boidController.gameObject.GetComponentsInChildren<MeshRenderer>())
             meshRenderer.enabled = show;
     }
 }

Boids/Assets/Scripts/Util.cs

@@ -6,13 +6,13 @@ public class Util {
         var sa = Mathf.Sin(a);
         var rx = v.x * ca - v.y * sa;
 
-        return new Vector2((float) rx, (float) (v.x * sa + v.y * ca));
+        return new Vector2(rx, v.x * sa + v.y * ca);
     }
 
     // Returns a velocity (Vector2) at a random angle with a specific overall magnitude
     public static Vector2 GetRandomVelocity(float magnitude) {
         var vector = new Vector2(magnitude, magnitude);
-        return Util.RotateBy(vector, Random.Range(0, 180));
+        return RotateBy(vector, Random.Range(0, 180));
     }
 
     public static Vector2 MaxVelocity(Vector2 v, float max) {
@@ -27,24 +27,25 @@ public class Util {
         return v;
     }
 
-    public static Vector2 AbsVector(Vector2 vector) {
+    public static float Vector2ToAngle(Vector2 velocity) {
-        return new Vector2(vector.x, vector.y);
+        float result = Mathf.Rad2Deg * Mathf.Atan2(velocity.y, velocity.x);
+        return (result < 0) ? (360f + result) : result;
     }
-}
 
-public class Scale {
+    public static float AngleBetween(Vector2 from, Vector2 to) {
-    private Vector2 _original;
+        Vector2 diff = to - from;
-    private Vector2 _new;
+        float result = Mathf.Rad2Deg * Mathf.Atan2(diff.y, diff.x);
-    private Vector2 _ratio;
+        return (result < 0) ? (360f + result) : result;
+    }
 
-    public float X => _ratio.x;
+    public static float AngleDifference(float angle1, float angle2) {
-    public float Y => _ratio.y;
+        return Mathf.Abs((angle1 > 180 ? 360 - angle1 : angle1) - (angle2 > 180 ? 360 - angle2 : angle2));
+    }
 
-    public Scale(Vector2 original, Canvas canvas) : this(original, canvas.pixelRect.size) { }
+    public static float AddAngle(float angle, float add) {
-
+        float result = angle + add;
-    public Scale(Vector2 original, Vector2 resized) {
+        if (result > 360) return result - 360;
-        _original = original;
+        if (result < 0) return 360 + result;
-        _new = resized;
+        return result;
-        _ratio = _original / _new;
     }
 }

Boids/ProjectSettings/GraphicsSettings.asset

@@ -34,7 +34,6 @@ GraphicsSettings:
   - {fileID: 16000, guid: 0000000000000000f000000000000000, type: 0}
   - {fileID: 16001, guid: 0000000000000000f000000000000000, type: 0}
   - {fileID: 17000, guid: 0000000000000000f000000000000000, type: 0}
-  - {fileID: 16002, guid: 0000000000000000f000000000000000, type: 0}
   m_PreloadedShaders: []
   m_SpritesDefaultMaterial: {fileID: 10754, guid: 0000000000000000f000000000000000,
     type: 0}

LICENSE

@@ -0,0 +1,675 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
+

README.md

@@ -1,15 +1,39 @@
 <div align="center">
-    <a href=""><img src="/banner.jpeg" alt="Boids" width="600"></a>
+    <a href=""><img src="./.media/banner.png" alt="Boids"></a>
     <br>
     <sub>
         Built with ❤︎ by <a href="https://github.com/Xevion/">Xevion</a>
     </sub>
 </div>
 
----
+<br>
 
-**Boids** is a simple simulation project dedicated to showcasing the flocking algorithm (known as *Boids*) in fun and accessible format, complete with sliders, buttons and dropdowns to allow maximum customization.
+**Boids** is a simple simulation project dedicated to showcasing the flocking algorithm (known as *Boids*) in a fun and accessible format, complete with sliders, buttons and dropdowns to allow maximum customization.
 
-To download a release, check the [Releases](https://github.com/Xevion/Boids/releases) section and download the appropriate build. **Boids** is built on the Unity Engine, and thus should be fully compatible across a myriad of platforms (although I do not provide Android builds).
+## Features
+
+- Customizable simulation weights
+- Handles up to 750 boids simultaneously on modern systems!
+- Smoothly animated and simple customization menu
+- Clean and informative about menu
+- Boid tracking with field of view visuals (Space)
+- Performance statistics (CTRL+H, CTRL+G)
+
+<div align="center">
+    <a href="#">
+        <img src="./.media/example.gif">
+    </a>
+    <br>
+    <sub>
+        Boids attempt to cohesively move together by each individually doing the same thing: move towards the center of the flock, align to the average heading of the flock, and keep a certain distance from eachother.
+    </sub>
+</div>
+
+## Installation
+
+To download a release, check the [Releases](https://github.com/Xevion/Boids/releases) section and download the appropriate build. **Boids** is built on the Unity Engine, and thus should be fully compatible across Windows, Mac & Linux without trouble.
+
+
+## Disclaimer
 
 *Note: Boids is extremely early in it's development and only has a fraction of the features I want it to have. Current releases are most definitely not even close to what I want Boids to look like. Additionally, I'm very inexperienced with Unity, and even worse with providing Builds to users. If a Build doesn't function, you'll have better luck loading the project and building yourself, likely.*