How to disable rendering during an action primitive?

[serendipity800]

I have manually implemented a set of action primitives (MOVE_FORWARD, MOVE_BACK, TRUN_LEFT, TURN_RIGHT) and wrote an Env consisting these discrete (multi-step actions). Since the frequency in my own Env class is less than the action frequency in og, many rendering in the middle steps are not useful for me. I want to close them.

[serendipity800]

I find the way, just modify the simulator