1000 humans spawn in random locations

Assets/GameCode/HumanNavigationSystem.cs

@@ -1,6 +1,9 @@
 using Unity.Entities;
 using Unity.Jobs;
+using Unity.Mathematics;
+using Unity.Transforms;
 using Unity.Transforms2D;
+using UnityEngine;
 
 class HumanNavigationSystem : JobComponentSystem
 {
@@ -9,6 +12,7 @@ public struct HumanData
         public int Length;
         public ComponentDataArray<Position2D> Position;
         public ComponentDataArray<Heading2D> Heading;
+        public ComponentDataArray<MoveSpeed> MoveSpeed;
         public ComponentDataArray<Human> Human;
     }
 
@@ -23,6 +27,11 @@ public void Execute(int index)
             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;
+
         }
     }
 
@@ -35,4 +44,6 @@ protected override JobHandle OnUpdate(JobHandle inputDeps)
 
         return humanNavigationJob.Schedule(humanDatum.Length, 64, inputDeps);
     }
+
+
 }

Assets/GameCode/ZombieSettings.cs

@@ -3,4 +3,26 @@
 internal class ZombieSettings : MonoBehaviour
 {
     public float HumanSpeed = 10;
+    internal int HumanCount = 1000;
+
+
+    public Rect Playfield = new Rect { x = -30.0f, y = -30.0f, width = 60.0f, height = 60.0f };
+
+
+    public static ZombieSettings Instance { get; private set; }
+
+    void Awake()
+    {
+        if (Instance != null)
+        {
+            Destroy(gameObject);
+        }
+        else
+        {
+            DontDestroyOnLoad(gameObject);
+            Instance = this;
+        }
+    }
+
+
 }

Assets/GameCode/ZombieSimulatorBootstrap.cs

@@ -36,18 +36,44 @@ public static void InitializeWithScene()
 
     private static void NewGame()
     {
-
         var entityManager = World.Active.GetOrCreateManager<EntityManager>();
+
+        for (int i = 0; i < Settings.HumanCount; i++)
+        {
+            CreateHuman(entityManager);
+        }
+    }
+
+    private static void CreateHuman(EntityManager entityManager)
+    {
         Entity firstHuman = entityManager.CreateEntity(HumanArchetype);
 
+        var randomSpawnLocation = ComputeSpawnLocation();
+
         // We can tweak a few components to make more sense like this.
-        entityManager.SetComponentData(firstHuman, new Position2D { Value = new float2(0.0f, 0.0f) });
+        entityManager.SetComponentData(firstHuman, new Position2D { Value = randomSpawnLocation });
         entityManager.SetComponentData(firstHuman, new Heading2D { Value = new float2(0.0f, 1.0f) });
         entityManager.SetComponentData(firstHuman, new MoveSpeed { speed = Settings.HumanSpeed });
 
         // Finally we add a shared component which dictates the rendered look
         entityManager.AddSharedComponentData(firstHuman, HumanLook);
+    }
+
+    private static float2 ComputeSpawnLocation()
+    {
+        var settings = ZombieSettings.Instance;
+
+        float r = Random.value;
+        float x0 = settings.Playfield.xMin;
+        float x1 = settings.Playfield.xMax;
+        float x = x0 + (x1 - x0) * r;
+
+        float r2 = Random.value;
+        float y0 = settings.Playfield.yMin;
+        float y1 = settings.Playfield.yMax;
+        float y = y0 + (y1 - y0) * r2;
 
+        return new float2(x, y);
     }
 
     private static void DefineArchetypes(EntityManager entityManager)