Add Placeholder support to holograms

[aj-rom]

This allows PlaceholderAPI to hook onto the player adding/creating a hologram to register it before creation.

[Fabricio20]

Hey, thanks for the contribution. I don't think this is going to work however.

Holograms are not rendered per-player, they are global, so the placeholder will be replaced upon creation and then will be visible for everyone else exactly the same (which won't make sense).

You can test this by creating a hologram with the player name placeholder (with your patch) and having a friend join (he will see your name instead of his).

[aj-rom]

Hey thanks for getting back so fast.

Do you know of any way to register a placeholder via the PlaceholderAPI using the Minecraft server?

The reason I forked was to allow our server to use
%bungee_total% and some other server unique placeholders.

Although I don’t think there is currently a way to only register placeholder messages to a server and not a player. I did test this out and it’s working from what I can tell.

[aj-rom]

For example I know %player_name% would show up as whoever added a line or created the hologram, but having the ability to add other server placeholders might be useful.