目前ECS分为两种，即HybridECS和PureECS
HybridECS是可以和MonoBehavior混合开发的，上手难度要比Pure小好多
PureECS则是纯ECS思路开发
以下为HybridECS的代码
Component：
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using Unity.Entities; namespace Hybrid_ECS { public struct MovementComponent : IComponentData { public float moveSpeed; } } |
System：
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using Unity.Entities; using Unity.Transforms; namespace Hybrid_ECS { public class MovementSystem : ComponentSystem { protected override void OnUpdate() { Entities.ForEach((ref Translation translation, ref MovementComponent moveComponentData) => { translation.Value.y += moveComponentData.moveSpeed * Time.DeltaTime; }); } } } |
Test：
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using System.Collections; using System.Collections.Generic; using UnityEngine; using Unity.Entities; using Unity.Mathematics; using Unity.Transforms; namespace Hybrid_ECS { public class HyBridECSTest : MonoBehaviour { [SerializeField] GameObject cubePrefab; [SerializeField] int rowNum = 10; [SerializeField] int columnNum = 10; // Start is called before the first frame update private List<Entity> entities; void Start() { EntityManager entityManager = World.DefaultGameObjectInjectionWorld.EntityManager; Entity entityPrefab = GameObjectConversionUtility.ConvertGameObjectHierarchy(cubePrefab, GameObjectConversionSettings.FromWorld(World.DefaultGameObjectInjectionWorld, null)); entities = new List<Entity>(); for (int i = 0; i < rowNum; i++) { for (int j = 0; j < columnNum; j++) { Entity entityClone = entityManager.Instantiate(entityPrefab); Vector3 position = transform.TransformPoint(new float3(i - rowNum / 2, noise.cnoise(new float2(i, 2) * 0.3f), j - columnNum / 2)); entityManager.AddComponentData(entityClone, new Translation() { Value = position }); entityManager.AddComponentData(entityClone, new MovementComponent { moveSpeed = 1f }); entities.Add(entityClone); } } } private void Update() { if (Input.GetMouseButtonDown(0)) { EntityManager entityManager = World.DefaultGameObjectInjectionWorld.EntityManager; foreach (var entity in entities) { entityManager.SetComponentData(entity, new MovementComponent{moveSpeed = 1f}); } } if (Input.GetMouseButtonDown(1)) { EntityManager entityManager = World.DefaultGameObjectInjectionWorld.EntityManager; foreach (var entity in entities) { entityManager.SetComponentData(entity, new MovementComponent{moveSpeed = -1f}); } } } } } |
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