Launch Entities

Hi, I'm trying to launch an entity not too high, just like a knockback. I've tried (even thought it'd obviously not work)

Code:

event.getEntity().setVelocity(event.getVelocity().multiply(3));

That doesn't work. I really need help, thanks. If it's possible to make it so it's not only a Player, but ANY entity.

Nvm, it does work, it's just a really bad power. I need to do:

Code:

.multiply(100));

to make it visible.

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

 

Im not sure if this works, but you can try

Code:java

Entity entity = event.getEntity();
Vector dir = enttiy.getLocation().getDirection();
dir.add(0.0D, 2.0D, 0.0D); //2.0 --> upwards shooting
dir.multiply(2); //speed
entity.setVelocity(dir);

Your code will make the entity go weird.
When the modX is higher than 1 it will be 100/
And the entity wll be waliing as soon as its on the ground again.
Better to use .add and apply smaller changes to the multiply function