Solved PlayerInteractEvent doesn't work properly!

I am trying to create a Speed Booster for my server. But for some reason it only Disables it. If you would like to help me there is my code:

Code:Java

 
    @EventHandler
    public void interactEvent(PlayerInteractEvent event) {
        boolean slimeballboolean = false;
        Player player = event.getPlayer();
        if(player.getItemInHand().getType().equals(Material.SLIME_BALL)) {
            if(event.getAction() == Action.RIGHT_CLICK_AIR) {
                if(slimeballboolean) {
                    slimeballboolean = true;
                    player.setWalkSpeed(0.5f);
                    sendActionBar(player, "&fSpeed booster&a Enabled&f!");
                }
                else if(!slimeballboolean) {
                        slimeballboolean = false;
                        player.setWalkSpeed(0.2f);
                        sendActionBar(player, "&fSpeed booster&4 Disabled&f!");
                    }
                }
            }
    } 
 

 

Can U Please Put Your Whole Code Or Your OnEnable In Here

 

You placed this variable (which should be a field) in the wrong place. Make the variable a field and that should fix the problem.

BTW:

This "Speedboost" is actally slower than base minecraft's speed. The normal speed is 1.

 

@Zombie_Striker Thank you so much and thanks for being good to me!