public class FreezeEff
	extends Effect{
	private Expression<EntityData<?>> players;



	@SuppressWarnings("unchecked")
	@Override
	public boolean init(Expression<?>[] exprs, int matchedPattern, Kleenean isDelayed, ParseResult parseResult) {
		this.players = (Expression<EntityData<?>>) exprs[0];
		return false;
	}

	@Override
	public String toString(@Nullable Event e, boolean debug){
		return "freeze " + this.players.toString();
	}

	@Override
	protected void execute(Event e) {
		if(this.players instanceof Player){
			freeze(e);
		}
	}

	private void freeze(Event e) {
		if(!(e instanceof PlayerMoveEvent)){
			return;
		}
		for (Player p : (Player[])this.players.getArray(e)) {
			if (((e instanceof PlayerMoveEvent)) && (p.equals(((PlayerMoveEvent)e).getPlayer()))){
				PlayerMoveEvent evt = (PlayerMoveEvent)e;
				Location from = evt.getFrom();
				Location to = evt.getTo();
				double x=Math.floor(from.getX());
				double z=Math.floor(from.getZ());
				if(Math.floor(to.getX())!=x||Math.floor(to.getZ())!=z){
					x+=.5;
					z+=.5;
					p.teleport(new Location(from.getWorld(),x,from.getY(),z,from.getYaw(),from.getPitch()));
				}
			}
		}
	}
}