Questions about Buffer

Unity Engine
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1

Hi,

I’m new to unity ECS (and ECS in generale) and I have some questions.

As far I understand, to add an array of components to an entity I need to use Dynamic Buffers. By adding a buffer to an entity I can allocate space for components of type IBufferElementData. But how can I populate this buffer from within a system? The first solution that came to my mind is take the Buffer with EntityManager and then add elements to the buffer, but I don’t know if it’s the best solution.

PostUpdateCommands.AddBuffer<MovementElementBuffer>(data.Entity[i]);
                DynamicBuffer<MovementElementBuffer> movementBuffer = EntityManager.GetBuffer<MovementElementBuffer>(data.Entity[i]);
                movementBuffer.Add(new MovementElementBuffer { x = 0, y = 0 });
                movementBuffer.Add(new MovementElementBuffer { x = 1, y = 1 });

Another question, maybe more stupid: which is the best solution to check a global variable inside a system? Now I have a static monobehavior that acts as Singleton and store some boolean flags that I check within systems, but is the best things to do?

Thanks for the help!

2

Not void method and returns to you buffer, which you can modify.

3

Hi,
Please check this thread about buffer array.
It may give you some answers.