No fall damage!

there is a plugin that completely disables fall damage. "NoFall".

 

Essentials can remove fall damage if you are using essentials.

 

You could create a Listener where in you call for the event: EntityDamageEvent and in there check the case == DamageCause.FALL than cancel it.

Example:

Code (Text):

@EventHandler
    public void onDamage(EntityDamageEvent event){
        if(event.getEntity() instanceof Player){
            Player p = (Player) event.getEntity();
           
                if(event.getCause() == DamageCause.FALL){
                    event.setCancelled(true);
                }
                if(p.getLastDamageCause().getCause() == DamageCause.FALL){
                    event.setCancelled(true);
                }
            }
    }
}
 

 

Use essentials xD

 

http://www.spigotmc.org/resources/nofall.3492/
http://dev.bukkit.org/bukkit-plugins/disablefalldamage/
https://github.com/Cewlt/NoFall/blob/master/com/colt/NoFall/NoFall.java


btw, JasperB, this is the wrong section.
since you're asking for help with developing, this should be in the "Spigot Plugin Development" forum section.