Remove auto reset from Command Buffer PlayBack() method

[skelitheprogrammer]

After PlayBack() method command buffer auto dispose everything user recorded. Its great for cases where you prevent NullRefs.

But, what if, it would be optional choice? What about only creational command buffers?
When I was looking at #21 I tried to code sample solution, using command buffer. With this reset, user have to re-record the same steps, to do the same thing

For example:

• Create Command buffer
• Record Entity Creation
• Set Components with values
• PlayBack()

This will be repeated N times, while it should only be  `PlayBack()` N times
- Record Entity Creation
- Set Components with values
- PlayBack()

[genaray]

So you mean that it would be a usefull feature to record certain entities once and play them back on a regular basis? ^^

[skelitheprogrammer]

Yes. I thought it was designed something like:

• Register commands;
• Use PlayBack() how much you need;
• Dispose when needed;

For example that's how I use it right now with next code snippet:

// 1. Configure Archetype
// 2. Override Configure method to set up component data, using buffer
// 3. Use Init to execute creation

    public abstract class EntityTemplate
    {
        private readonly CommandBuffer _buffer;
        protected abstract ComponentType[] Template { get; }

        protected EntityTemplate(World world)
        {
            _buffer = new CommandBuffer(world);
        }

        protected abstract void Configure(CommandBuffer buffer, in Entity entity);

        public Entity Init()
        {
            Entity entity = _buffer.Create(Template);
            Configure(_buffer, entity);
            _buffer.Playback();
            return entity;
        }
    }

In the Init() method, I have to re-register commands to create the same entity type, because after PlayBack(), all registered commands are gone.

Does that makes sense? :D

[genaray]

Yes. I thought it was designed something like:

• Register commands;
• Use PlayBack() how much you need;
• Dispose when needed;

Kinda, well it makes sense to add an way to permit the reset each playback ^^
Its also linked to : #202 which does not link the commandbuffer directly to the world.

I would really appreciate a pr for this :)

Oh and there's also : #21 which solves the problem differently

[skelitheprogrammer]

Yes. I thought it was designed something like:

• Register commands;
• Use PlayBack() how much you need;
• Dispose when needed;

Kinda, well it makes sense to add an way to permit the reset each playback ^^ Its also linked to : #202 which does not link the commandbuffer directly to the world.

I would really appreciate a pr for this :)

Oh and there's also : #21 which solves the problem differently

Sure, I will make a pr when I will get my hands on.

[genaray]

Was introduced in 5f5b058