10k Humans can run around

Assets/GameCode/ComponentTypes/Human.cs

@@ -2,5 +2,5 @@
 
 public struct Human : IComponentData
 {
-
+    public float TimeTillNextDirectionChange;
 }

Assets/GameCode/HumanNavigationSystem.cs

@@ -1,4 +1,5 @@
-using Unity.Entities;
+using Unity.Collections;
+using Unity.Entities;
 using Unity.Jobs;
 using Unity.Mathematics;
 using Unity.Transforms;
@@ -7,43 +8,68 @@
 
 class HumanNavigationSystem : JobComponentSystem
 {
-    public struct HumanData
-    {
-        public int Length;
-        public ComponentDataArray<Position2D> Position;
-        public ComponentDataArray<Heading2D> Heading;
-        public ComponentDataArray<MoveSpeed> MoveSpeed;
-        public ComponentDataArray<Human> Human;
-    }
-
     [Inject] private HumanData humanDatum;
 
+    NativeArray<float> randomFloats = new NativeArray<float>(1000000, Allocator.Persistent);
+    NativeArray<float> randomFloats2 = new NativeArray<float>(1000000, Allocator.Persistent);
 
-    struct HumanNavigationJob : IJobParallelFor
+    protected override JobHandle OnUpdate(JobHandle inputDeps)
     {
-        public HumanData humanDatum;
-        public void Execute(int index)
+        for (int i = 0; i < humanDatum.Length; i++)
         {
-            Heading2D heading2D = humanDatum.Heading[index];
-            heading2D.Value = new Unity.Mathematics.float2(1f, 0f);
-            humanDatum.Heading[index] = heading2D;
-
-            MoveSpeed moveSpeed = humanDatum.MoveSpeed[index];
-            moveSpeed.speed = index;
-            humanDatum.MoveSpeed[index] = moveSpeed;
-
+            randomFloats[i] = Random.value;
+            randomFloats2[i] = Random.value;
         }
-    }
 
-    protected override JobHandle OnUpdate(JobHandle inputDeps)
-    {
         var humanNavigationJob = new HumanNavigationJob
         {
-            humanDatum = humanDatum
+            humanDatum = humanDatum,
+            dt = Time.deltaTime,
+            randomFloats = randomFloats,
+            randomFloats2 = randomFloats2
         };
 
         return humanNavigationJob.Schedule(humanDatum.Length, 64, inputDeps);
     }
+}
+
+struct HumanNavigationJob : IJobParallelFor
+{
+    public HumanData humanDatum;
+    public float dt;
+    public NativeArray<float> randomFloats;
+    public NativeArray<float> randomFloats2;
+
+    public void Execute(int index)
+    {
+        var human = humanDatum.Human[index];
+        human.TimeTillNextDirectionChange -= dt;
 
+        if (human.TimeTillNextDirectionChange <= 0)
+        {
+            human.TimeTillNextDirectionChange = 5;
 
+            float randomX = (randomFloats[index] - 0.5f) * 2f;
+            float randomY = (randomFloats2[index] - 0.5f) * 2f;
+
+            Heading2D heading2D = humanDatum.Heading[index];
+            heading2D.Value = new float2(randomX, randomY);
+            humanDatum.Heading[index] = heading2D;
+
+            //MoveSpeed moveSpeed = humanDatum.MoveSpeed[index];
+            //moveSpeed.speed = index;
+            //humanDatum.MoveSpeed[index] = moveSpeed;
+        }
+
+        humanDatum.Human[index] = human;
+    }
 }
+
+public struct HumanData
+{
+    public int Length;
+    public ComponentDataArray<Position2D> Position;
+    public ComponentDataArray<Heading2D> Heading;
+    public ComponentDataArray<MoveSpeed> MoveSpeed;
+    public ComponentDataArray<Human> Human;
+}

Assets/GameCode/ZombieSettings.cs

@@ -3,7 +3,7 @@
 internal class ZombieSettings : MonoBehaviour
 {
     public float HumanSpeed = 10;
-    internal int HumanCount = 1000;
+    public int HumanCount = 1000;
 
 
     public Rect Playfield = new Rect { x = -30.0f, y = -30.0f, width = 60.0f, height = 60.0f };

Assets/Scenes/ECS Zombie Simulator.unity

@@ -213,6 +213,14 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 5a21cd627d80c4b4a9b41c1c1b4a3165, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
+  HumanSpeed: 3
+  HumanCount: 10000
+  Playfield:
+    serializedVersion: 2
+    x: -30
+    y: -30
+    width: 60
+    height: 60
 --- !u!4 &657261337
 Transform:
   m_ObjectHideFlags: 0