Setup:
You have two Action Maps, UP and DOWN.
You have one action in each map. UP has MouseUp and DOWN has MouseDown. Both of these actions have an ActionType of button.
MouseUp is bound to the mouses left button with a Press interaction Release only.
MouseDown is bound to the mouses left button with a Press interaction Press only.
Issue:
So my desired and expected use of the action maps is to be able to change the map used based on the context the player is in. When the players inventory is open, they will have a different action map than when they don’t. This may not be what you’re expected use case is, but it was mine.
The desired behavior is to have the MouseDown event trigger a change from the DOWN action map to the UP action map. Then when the mouse is released it will trigger the MouseUp event. However, it does not. It appears that the mouse action is discarded, and so MouseUp is not triggered until a subsequent mouse click.
Without this ability, input response events will need to check a separate game state event to determine how to respond to inputs. Using different action maps, we can use the ActionMap as a finite state machine and only fire and listen to events when it would be appropriate to respond to them.