Increase the swimming speed of a player

I want to be able to increase the swimming speed of the player. Obviously this would require the use of Vectors and the PlayerMoveEvent, but I have no idea how I would do it. Help is appreciated as ever!

 

Yea, the PlayerMoveEvent would be useful for this, e.g.:

Code:

//In your PlayerMoveEvent
Location from = e.getFrom();
Location to = e.getTo();
if(from.getBlock().getType().name().endsWith("WATER")) { //Check if it's water
  Vector changed = to.clone().subtract(from).toVector(); //Get the difference between the locations
  e.setTo(from.clone().add(changed.multiply(2)); //Set the new location, but twice the speed as usual, you can change the 2 to any amount, depending how fast you want it to go
}

I haven't tested it, it might look at bit glitchy but you need to test it out

 

@JUSTCAMH @megamichiel not sure but have you tried changing walking speed of a player?

 

>when you want to change the walkspeed of a player
>using that code
heh

You could just apply a potion effect every so and so seconds.

Code:

Player p  = blah;

player.addPotionEffect(new PotionEffect(PotionEffectType.SPEED, 18000, 2));

 

@nbrandwine but it will become obvious and people will see the potion effect particles or the effect next to player inventory... I'll see if I can find a nms way for speed potion as I did with invisibility potion :- )

 

I think there's a way to cancel the potion effect packet. I know Essentials or Vanish has done it before.
I'll get back to you with that.

 

Minecraft 1.8 supports hiding particle effects from potions... Also I think speed and walk speed both only increases the walk speed

 

@megamichiel indeed but in these forums 1.8 Is not supported so I have to stay within the supported versions.


@nbrandwine packet sniffing would make you able to keep the potion only client side but requires libraries or makes your plugin version depended In a way.

 

didn't read. maybe this will help https://gist.github.com/aadnk/8946262

 

@nbrandwine this makes your plugin depended on external libraries

 

@mine-care
Also trying to intercept the packet is hard because you can't just get the corresponding entity to a particle effect

 

@megamichiel that's true

 

@mine-care @megamichiel @nbrandwine
Speed isn't applied when in water! Also, even if this did work (I should have mentioned this when I posted the thread) the speed in the water would need to be very slight changes to the speed. Eg. I wouldn't want speed 1, I would want speed 0.5

@megamichiel
I fiddled with your code and here's what I got:

Code:

Location from = e.getFrom();
        Location to = e.getTo();
        if (from.getBlock().getType().name().endsWith("WATER")) {
            Vector changed = to.clone().subtract(from).toVector();
            e.getPlayer().setVelocity(changed.multiply(1.5));
        }

It works and this is pretty much what I wanted. Only problem is that I don't want the vector to change the Y movement. I want only movement in the X and Z cords to be amplified. How might I achieve that?

 

@JUSTCAMH
Before you set the velocity you can set the changed vector's y to the player's current y

 

@megamichiel
Thanks! Only problem now is that since water is similar to ice in that when you try to stop it will keep going for a bit, and that small bit is increased due to the speed. Not quite what I wanted but hey! It's all just an addon! What can you expect?
Code for anyone interested:

Code:

Location from = e.getFrom();
        Location to = e.getTo();
        if (from.getBlock().getType().name().endsWith("WATER")) {
            Vector changed = to.clone().subtract(from).toVector().multiply(1.5);
            changed.setY(to.clone().subtract(from).toVector().getY());
            e.getPlayer().setVelocity(changed);
        }

 

Why not use this.

Code:

public void run(){
for(Player p : getServer().getonlinePlayers){
if(p.getLocaion().getBlock.getType() == Material.WATER){// I don't know which WATER in the material list is for a block,
if(p.getVelocity().getX() <= 2 && y <= 2 && z <= 2)//makes sure players don't move at speed of light
p.setVelocity(p.getVelocity.multiply(1.5))
}
}
}