Entity

Component

System

• Unity DOTS： Explain profound theories in simple language SystemBase

Job

• C# Although support Thread, But in Unity Only data can be processed in , for example ： Internet news 、 download . If you want to Thread Call in Unity Of API That's not going to work .
• job Using the main thread in API Will report a mistake ：“UnityException: GetKeyInt can only be called from the main thread.”

		protected override JobHandle OnUpdate(JobHandle inputDeps)
        {
    
            Entities.ForEach((ref Move_Component moveComponent, in Input_Component inputComponent) =>
            {
    
                moveComponent.direction = 0;
                moveComponent.direction += Input.GetKey(inputComponent.upKey) ? 1 : 0;
                moveComponent.direction -= Input.GetKey(inputComponent.downKey) ? 1 : 0;
            }).Schedule(inputDeps);
            return default;
        }

Should be changed to ：

        protected override JobHandle OnUpdate(JobHandle inputDeps)
        {
    
            Entities.ForEach((ref Move_Component moveComponent, in Input_Component inputComponent) =>
            {
    
                moveComponent.direction = 0;
                moveComponent.direction += Input.GetKey(inputComponent.upKey) ? 1 : 0;
                moveComponent.direction -= Input.GetKey(inputComponent.downKey) ? 1 : 0;
            }).Run();
            return default;
        }