Moving functions return undefined about grid-engine HOT 5 CLOSED

Thanks for the answers, i just need to use getPosition method.

from grid-engine.

Hi @borkowsky, I assume you mean that the moveLeft, moveRight, etc. methods?
They always return undefined on purpose.
What do you suggest them to return instead?

from grid-engine.

Hi @borkowsky, I assume you mean that the moveLeft, moveRight, etc. methods?
They always return undefined on purpose.
What do you suggest them to return instead?

Maybe return new position?

from grid-engine.

The problem is, that they are not synchronous methods. You can see them more as a "fire and forget" command.
A good comparison would be to see them like a keypress in a game. You can press the key as often as you want and the game will notice, but it will decide whether or not a keypress is changing the player position or not.

In this plugin it is as follows: if you take a look at the "move-player" example you see that a pressed key will trigger a call to on e of the move methods on every update. But not each of these calls causes a position change. They only tell the game that you would like to move a player.

Therefore it is not possible to return a new position. But if you tell me what you need it for, I can maybe tell you how to achieve this differently. And if not possible, I could extend the plugin in a way that helps you and other users.

Since Version 1.4 there are some observables that you can use to react to events like movementStarted, movementStopped or directionChanged.

from grid-engine.

You're welcome. I am playing with the thought of adding an observable that fires on every position change. Depending on your use case that could prevent you from polling.

from grid-engine.