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一.简介

块组件(ChunkComponent),与共享组件类似,但在共用组件时并不会将组件移动到新的块里面去.
当将块组件的值进行修改时.将会把组件中的值进行一个统一的变化,不会产生一个新的组件

二.例子

1.创建ChunkComponent

public struct ChunkComponent9 : IComponentData
{
    public int data;
}

2.创建控制类

public class Test9 : MonoBehaviour
{
    void Start()
    {
        EntityArchetype tempEntityArchtype =                             World.DefaultGameObjectInjectionWorld.EntityManager.CreateArchetype(ComponentType.ChunkComponent(typeof(ChunkComponent9)));
        World.DefaultGameObjectInjectionWorld.EntityManager.CreateEntity(tempEntityArchtype);
    }
}

3.测试创建多个ChunkComponent后,修改值

void Start()
{
    //创建Chunk,注意这里需要用ComponentType.ChunkComponent函数包裹
    EntityArchetype tempEntityArchtype = World.DefaultGameObjectInjectionWorld.EntityManager.CreateArchetype(ComponentType.ChunkComponent(typeof(ChunkComponent9)));
    //创建第一个Chunk
    Entity tempEntity = World.DefaultGameObjectInjectionWorld.EntityManager.CreateEntity(tempEntityArchtype);
    //创建第二个Chunk
    World.DefaultGameObjectInjectionWorld.EntityManager.CreateEntity(tempEntityArchtype);
    //找到Chunk
    ArchetypeChunk tempChunk = World.DefaultGameObjectInjectionWorld.EntityManager.GetChunk(tempEntity);
    //修改Chunk值
    World.DefaultGameObjectInjectionWorld.EntityManager.SetChunkComponentData(tempChunk, new ChunkComponent9() { data = 8 });
}

4.任意物体中挂载后查看
代码中我们只修改了一个值,但两个Chunk值都修改了

5.块组件的增删改查操作

using Unity.Entities;
using UnityEngine;
public class Test9 : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        //创建Chunk,注意这里需要用ComponentType.ChunkComponent函数包裹
        EntityArchetype tempEntityArchtype = World.DefaultGameObjectInjectionWorld.EntityManager.CreateArchetype(ComponentType.ChunkComponent(typeof(ChunkComponent9)));
        //创建第一个Chunk
        Entity tempEntity = World.DefaultGameObjectInjectionWorld.EntityManager.CreateEntity(tempEntityArchtype);
        //创建第二个Chunk
        World.DefaultGameObjectInjectionWorld.EntityManager.CreateEntity(tempEntityArchtype);
        //找到Chunk
        ArchetypeChunk tempChunk = World.DefaultGameObjectInjectionWorld.EntityManager.GetChunk(tempEntity);
        //修改Chunk值
        World.DefaultGameObjectInjectionWorld.EntityManager.SetChunkComponentData(tempChunk, new ChunkComponent9() { data = 8 });
        //获取Chunk
        World.DefaultGameObjectInjectionWorld.EntityManager.GetChunkComponentData<ChunkComponent9>(tempChunk);
        //删除Chunk
        World.DefaultGameObjectInjectionWorld.EntityManager.RemoveChunkComponent<ChunkComponent9>(tempEntity);
        //增加Chunk
        World.DefaultGameObjectInjectionWorld.EntityManager.AddChunkComponentData<ChunkComponent9>(tempEntity);
        //存在判断
        World.DefaultGameObjectInjectionWorld.EntityManager.HasChunkComponent<ChunkComponent9>(tempEntity);
    }
}