Back again, with a Simple Repeating task question.

I'm trying to apply a 2 second smoke trail to someone being launched by a player.setVelocity();

Im assuming I'd need to use a scheduleSyncRepeatingTask to do this, by either getting the players location, (or player himself if I can apply smoke to a player)..but how to actually use scheduleSyncRepeatingTask Im at a loss for, nothing I try works.

anyone mind tossing together a line for me to use to a player.getWorld().playEffect(location, Effect.SMOKE, 3); on that would work?
(or how to do it on the player himself)

 

I believe you need to use ticks.

timer = new Timer(speed, this);
timer.setInitialDelay(pause);
timer.start();

Play with that a little.

http://docs.oracle.com/javase/tutorial/uiswing/misc/timer.html


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

 

Kinda helps, but not sure how to implement it

first time trying to execute a bukkit repeating command, so lost on even how to start out.
the command I need to do I can handle, how to repeat it for 2 seconds (or 40 server ticks) I'm completely lost on.

I gotten this far:

Code:java

 
    public void onPlayerMove(PlayerMoveEvent e) {
        final Player p = e.getPlayer();
        //------------------------
        if (!p.hasPermission("dx.road")) {
            return;
        }
        else {
            final Location tloc =  p.getLocation();
            final CraftPlayer cp = (CraftPlayer)p;
            final World World = p.getWorld();
            Location location = new Location (p.getWorld(), p.getLocation().getX(), p.getLocation().getBlockY()-1, p.getLocation().getBlockZ());
            Block block = location.getBlock();
            if(block.getTypeId() == 121 && (!TownyUniverse.isWilderness(block) || true && World == Bukkit.getWorld("Travel"))) {
                cp.getHandle().addEffect(new MobEffect(1, 20, Main.Speed));
                cp.getHandle().addEffect(new MobEffect(8, 20, Main.Jump));
                cp.getWorld().playEffect(location, Effect.SMOKE, 2);
            }
            //------------------------
            if(block.getTypeId() == 110 && !TownyUniverse.isWilderness(block) == true) {
                cp.getHandle().addEffect(new MobEffect(9, 200, Main.Twist));
            }
            //------------------------
            if(block.getTypeId() == 19 && !TownyUniverse.isWilderness(block) == true) {
                Vector dir = p.getLocation().getDirection();
                Vector vec = new Vector(dir.getX() * Main.JumpBlock, Main.JumpBlock, dir.getZ() * Main.JumpBlock);
                cp.setVelocity(vec);
                cp.setFallDistance(-100.0F);
                cp.getWorld().playEffect(location, Effect.EXTINGUISH, 1);
                cp.getWorld().playEffect(location, Effect.MOBSPAWNER_FLAMES, 1);
                cp.getHandle().addEffect(new MobEffect(1, 20, 4));
                plugin.getServer().getScheduler().scheduleSyncDelayedTask(plugin, new Runnable(){
                    public void run(){
                        World.playEffect(tloc, Effect.GHAST_SHRIEK, 1);
                    }
                },20L);
            }
        }
    }
 

but I get an exception of "Could not pass event PlayerMoveEvent to DXRoads"
with relvant part, being: Caused by: java.lang.NullPointerException at me.dx.roads.plugin.Lis.onPlayerMove(Lis.java:67)

which is where the scheduleSyncDelayedTask is (Line 31 in here) ..what am I doing wrong.

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

 

line 31 in there is cp.getHandle().addEffect(new MobEffect(1, 20, 4));