Shoot arrow perfectly straight

Does anyone know if its actually possible to shoot an arrow perfectly straight but not super fast? I know that I could increase the speed which would decrease the change in height over distance but I want it to also go slowly.

 

I'm not sure if this will work, but I think it will. I unfortunately cannot test it right this moment, so I'll leave that to you.

Code:java

@EventHandler
public void onProjectileThrownEvent(ProjectileLaunchEvent event) {
    if (event.getEntity() instanceof Arrow) {
        while (!event.getEntity().isOnGround()) {
            event.getEntity().setVelocity(event.getEntity().getVelocity());
        }
    }
}

 

lol that will crash the server

 

Okay, try this then.

Code:java

@EventHandler
public void onProjectileThrownEvent(ProjectileLaunchEvent event) {
    if (event.getEntity() instanceof Arrow) {
        int a = Bukkit.getServer().getScheduler().scheduleSyncRepeatingTask(<your plugin>, new Runnable() {
            public void run() {
                if (!event.getEntity().isOnGround()) {
                    event.getEntity().setVelocity(event.getEntity().getVelocity());
                }
                else {
                    Bukkit.getServer().getScheduler().cancelTask(a);
                }
            }
        }, 0L, 1);
    }
}