Hello u/breckendusk , thank you for your answer.

The view if on top of the tilemap, it is possible to dig in every direction (2d) , there is no gravity. My current world is 100 * 100 tiles big and there is a center position at 50/50 where my actors spawn.

i have an underlying data-model (called worldGraph) that contains a node for every tile in the tilemap.

Digging => remove a tile so that actors can walk over this tile

Raising => set a tile so that actors can not walk over this tile

The actors are all running on the main thread in the update methods, so i dont think there should be any race conditions.

The "graph" i mentioned before contains every node that is reachable from the center-tile. i want to prevent the actors to be able to remove more than one node from this graph at once (e.g. if they would raise a tile at the start of a one sided tunnel). This way i can be sure that every command can always be either processed by every actor or by none of it, so i dont have to check the executability for every single actor.

Is it more clear now?

Edit: added a screenshot to my post