Using SystemBase (ECS/DOTS) but code will not execute at all!

Hello there,

I apologize ahead of time if the solution to my problem is so simple I should have seen it earlier - for some reason though, I cannot (for the life of me) seem to get my SystemBase scripts to execute/register ANY code/input!

For example:

I follow this video to start using prefabs: https://www.youtube.com/watch?v=m9YAxRhCZ8M&t=459s&ab_channel=TurboMakesGames

But got stuck at Input.GetKeyDown(KeyCode.A) - as mine did not want to register/execute! I tried changing a few things to just get my code to debug a log at least, but still nothing~

I'm at a loss - if anyone is able to assist me it would be greatly appreciated!

Sincerely,

Bakos13

PS. I googled my issue but it seems no one else is having it! aha.. so.. Where did I go wrong! I know I installed all the required ECS packages as instructed in the video.

• com.unity.rendering.hybrid (which installs all pre-requisites for entities, mathematics, etc)

• com.unity.physics

• com.unity.netcode

My SystemBase script for spawning entities via prefab:

 using Unity.Entities;
 using Unity.Mathematics;
 using Unity.Transforms;
 using UnityEngine;
 using Random = Unity.Mathematics.Random;
 
 [UpdateBefore(typeof(TransformSystemGroup))]
 public partial class gameController : SystemBase
 {
     private Entity _playablePrefab;
     private Entity _capsuleSpawner;
     private Random _random;
     private float3 _minPos = float3.zero;
     private float3 _maxPos = new float3(50, 0, 50);
     private BeginSimulationEntityCommandBufferSystem _ecbSystem;
 
     protected override void OnStartRunning()
     {
         Application.targetFrameRate = 30;
         _playablePrefab = GetSingleton<Playable>().Value;
 
         _random.InitState(4554);
         _ecbSystem = World.GetOrCreateSystem<BeginSimulationEntityCommandBufferSystem>();
 
         _capsuleSpawner = GetSingletonEntity<LastSpawnedPlayable>();
         Debug.Log("1");
     }
 
     protected override void OnUpdate()
     {
         if (Input.GetKey(KeyCode.A))
         {
             Debug.Log("A");
             var newPlayable = EntityManager.Instantiate(_playablePrefab);
 
             SetSingleton(new LastSpawnedPlayable { Value = newPlayable });
 
             var randPos = _random.NextFloat3(_minPos, _maxPos);
             var newPos = new Translation { Value = randPos };
             EntityManager.SetComponentData(newPlayable, newPos);
             Debug.Break();
         }
 
         if (Input.GetKeyDown(KeyCode.S))
         {
             var ecb = _ecbSystem.CreateCommandBuffer();
 
             var newCapsule = ecb.Instantiate(_playablePrefab);
             var randPos = _random.NextFloat3(_minPos, _maxPos);
             var newPos = new Translation { Value = randPos };
             ecb.SetComponent(newCapsule, newPos);
         }
 
         var lastSpawned = GetSingleton<LastSpawnedPlayable>().Value;
         if (lastSpawned != Entity.Null)
         {
             var lastPos = GetComponent<Translation>(lastSpawned);
             var upPos = new float3(25, 25, 25);
             Debug.DrawLine(lastPos.Value, upPos, Color.red);
         }
     }
 }