Hey there, I'm having trouble checking if a player is moving or not, getDeltaMovement doesn't work unless the player is sprint jumping so I thought to compare positions between ticks and im not tooooo sure how to do that. If anyone can help that would be appreciated

getDeltaMovement is they way to go, however it's only populated properly on the client. Therefore any modifications to the player based upon their speed can be done on the client, but if there's an interaction with another entity you have to send a message over the network

if(player.level().isClientSide) {
  System.out.println(player.getDeltaMovement().x); // Works!
}