Horse jump-meter to set projectile launch power?

Hey all!
I'm brainstorming a new gamemode I'm going to code and I want to lay it all out in my head first. One part of this requires the player to press the spacebar at the right timing to shoot a projectile at a certain power. Obviously, the first thing that comes to mind is a horse. The jump meter on the horse is EXACTLY what I need.

Is there anyway to "add" that horse meter to a player's screen without them being on a horse? Also, there is no player jump event, so I would need to find a way to disable the jump and instead use the meter's return value to change the power of a projectile.

Any ideas? Thanks for your time!

 

@oPryzeLP This is probably client side, but if it is possible you will probably find that your solution lies with packets.

 

Packets hmm? Makes sense. If it's client-side, do you think there is any way for me to display the horse meter to them without them being on a horse?

 

@oPryzeLP I doubt the horse meter is sent to the server, but then again I have no idea.

 

I suppose an easier method would be to use the XP bar instead and set/get the values. However, using the spacebar is a necessity and there is no playerJumpEvent... How could I detect when they pressed the spacebar while also canceling the jump?

 

@oPryzeLP Only way I can think of is to check when the player moves and compare the y values; however, canceling the move event would look bad.

 

Yeah... Well the spacebar isn't really the end-all be-all. But they HAVE to use a button from the keyboard and not their mouse.

EDIT: What about sneaking?

 

@oPryzeLP Use the PlayerSneakEvent. Not sure of the correct name.