Command

CommandQueues

CommandQueues is a referenced type container that stores queues of different command types. Usually one game should only have one CommandQueues instance, which is passed to any system that needs to produce or consume commands.

CommandQueue

CommandQueue is a generic container that stores a queue of commands of a specific type.

How to add a new command

1. create a struct that conforms to Command.

2. create a producer that construct the command and add it to the commandQueues via commandQueues.push(NewCommand(id: CommandId()))

3. register that commandQueue into the CommandQueues instance, e.g. commandQueues.register(NewCommand.self)

4. update the consume logic in InputSystem to consume the command, e.g.

    while commandQueues.pop(NewCommand.self) != nil {
        // Consume the command
    }