refactor

Assets/Boids/Boids.cs

@@ -1,6 +1,4 @@
-using System.Collections;
-using System.Collections.Generic;
-using Unity.Collections;
+using Unity.Collections;
 using Unity.Mathematics;
 using UnityEngine;
 using UnityEngine.Jobs;
@@ -88,8 +86,8 @@ public void Execute(int id) {
         }
     }
 
-    [Unity.Burst.BurstCompile]
-    struct CountJob : IJob {
+    [BurstCompile]
+    struct UpdateBlck : IJob {
         public NativeArray<Vector3> position;
         public NativeArray<int> result;
         int n => position.Length;
@@ -153,13 +151,13 @@ void Update() {
         var jobWall = new UpdateWall { position = pos, accel = acc, scale = areaSize};
         var jobSmlt = new UpdateSmlt { position = pos, velocity = vel, accel = acc, dstThreshold = distThreshold, weights = simWeight};
         var jobMove = new UpdateMove { position = pos, velocity = vel, accel = acc, dt = Time.deltaTime, limit = velThreshold};
-        var jobCunt = new CountJob { position = pos, result = rst };
+        var jobBlck = new UpdateBlck { position = pos, result = rst };
         var handlerWall = jobWall.Schedule(num, 0);
         var handlerSmlt = jobSmlt.Schedule(num, 0, handlerWall);
         var handlerMove = jobMove.Schedule(trs, handlerSmlt);
-        var handlerCunt = jobCunt.Schedule(handlerMove);
+        var handlerBlck = jobBlck.Schedule(handlerMove);
 
-        handlerCunt.Complete();
+        handlerBlck.Complete();
     }
 
     void OnDrawGizmos() {

Assets/Boids/Demo.unity

@@ -207,7 +207,7 @@ Transform:
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 896666455}
   m_LocalRotation: {x: 0.40821788, y: -0.23456968, z: 0.10938163, w: 0.8754261}
-  m_LocalPosition: {x: -0.3838247, y: -2.0559778, z: -2.3785515}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 0}
@@ -353,3 +353,77 @@ MonoBehaviour:
   distThreshold: 5
   velThreshold: {x: 0, y: 4}
   simWeight: {x: 8, y: 6, z: 1}
+--- !u!1 &1706854649
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 1706854650}
+  m_Layer: 0
+  m_Name: Tests
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 0
+--- !u!4 &1706854650
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1706854649}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_Children:
+  - {fileID: 2109220694}
+  m_Father: {fileID: 0}
+  m_RootOrder: 3
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!1 &2109220693
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 2109220694}
+  - component: {fileID: 2109220695}
+  m_Layer: 0
+  m_Name: RemoveAtSwapBackTest
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &2109220694
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 2109220693}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_Children: []
+  m_Father: {fileID: 1706854650}
+  m_RootOrder: 0
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &2109220695
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 2109220693}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 49299c47bf9bcf54d9e7228aee3587fd, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 

Assets/Tests/RemoveAtSwapBackTest.cs

@@ -0,0 +1,18 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class RemoveAtSwapBackTest : MonoBehaviour
+{
+    // Start is called before the first frame update
+    void Start()
+    {
+
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+
+    }
+}

Packages/manifest.json

@@ -5,6 +5,7 @@
     "com.unity.ext.nunit": "1.0.0",
     "com.unity.ide.rider": "1.1.0",
     "com.unity.ide.vscode": "1.1.3",
+    "com.unity.jobs": "0.2.1-preview.3",
     "com.unity.mathematics": "1.1.0",
     "com.unity.test-framework": "1.1.3",
     "com.unity.textmeshpro": "2.0.1",