Require food while flying

Wondering how I could remove 1 food from players food bar for every 10 blocks they flown.

 

ChrisStarr32
In PlayerMoveEvent. Check if they are flying, then check their location and store it in some sort of Mapping. In the same event, check if their distanceSquared to the stored location is > 100, and remove 1 food from their hunger bar.

 

AoH_Ruthless
I kind of understand what your saying im just not exactly sure on the squaring part.
Could you explain more in depth?

 

ChrisStarr32
Player#getLocation()#distance(Location)

Let's say your stored location is 'l'.
In your PlayerMoveEvent, you will want to check if the player is 10 blocks+ away from l. To do this, we would use

Code:java

if (Player.getLocation().distance(l) >= 10) {
    // code
}

However, .distance() uses square roots which is very intensive (comparatively). Especially in a PlayerMoveEvent which can be called every single tick. So, you will want to use the counterpart .distanceSquared. However, to accomodate you will have to square 10 also (10^2=100).

New code:

Code:java

if (Player.getLocation().distanceSquared(l) >= 100) {
    // code
}

 

ChrisStarr32

Code:java

double distanceSquared = location1.distanceSquared(location2);

 

Joiner AoH_Ruthless
Ahh. Okey. Im starting to see.

I may sound like a noob but how do I get location 1 and location 2 correctly?
Ik Location location1 = player.getLocation(); but when?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

ChrisStarr32

 

AoH_Ruthless
Right. I see that. Mapping you mean array right?

 

No, you can't use an ArrayList, you have to use an HashMap.