Dropping ItemStack from player like when pressing 'Q'

I'm trying to get an ItemStack to drop from the player like it would drop when pressing Q.
Figured out. Code:

Code:java

    // Drop item
    dropItem(player, 0.2, new ItemStack(Material.DIAMOND, 1));
 
    // Method
    public static Item dropItem(Player player, double vec, ItemStack is) {
        Location l = player.getLocation();
        l.setY(l.getY() + 1);
        Item item = l.getWorld().dropItem(l, is);
        Vector v = l.getDirection().multiply(vec);
        v.setY(0.2);
        item.setVelocity(v);
        return item;
    }

And another question is: Is it possible to change the maxstack size of a GenericCustomItem in Spout ? (You might be the man for this @Afforess )

EDIT: here is a drawing of what I am looking for:

 

Umm... you remove it from their inventory and do World.dropItem().

 

That only drops it at their feet. I want it to drop with a bit of velocity away from the player.

 

World.dropItem() will return an Item entity, which you can set velocity for.

 

Not at the moment, the ability to set the max stack size has not been added yet. :/

Keep in mind the API is still experimental.