Solved Rotation + Throwing emeralds

1) Can I block »ONLY« rotating players head? e.g. You can move, but you can't move your head (propably something with x-rot and y-rot?)

2) Can I set any item throwable (e.g. throwing emeralds like enderpearls)

(2 could be usefull in SuperPaintball...)

X-rot is called yaw and Y-rot is called pitch. Check in PlayerMoveEvent if from pitch !== to pitch or from yaw !== to yaw cancel event. Note that the Player can still rotate head, just that after hundreds of milliseconds it will get reverted.

For 2, handle PlayerInteractEvent. If event action is RIGHT_CLICK_AIR and event item is a snowball, cancel it.

So, can you give me some example?

PHP:

public function onInteract(PlayerInteractEvent $ev){
if ($ev->getAction() == PlayerInteractEvent::RIGHT_CLICK_AIR){
//now what? It's bad/ good?
}
}


PHP:

public function onInteract(PlayerInteractEvent $ev){
if ($ev->getAction() === PlayerInteractEvent::RIGHT_CLICK_AIR and in_array($event->getItem()->getId(), [/*snowball ID*/, /*egg ID*/])){
//now what? It's bad/ good?
}
}


OK, but how set emerald throwable(with this code)?

Throw an emerald???

add motion to item

Copy the code in Player.php about throwing snowballs and replace it with emerald dropped items.

throwed snowball is normal item?

No, but if you want emerald texture, dropped item is a good alternative.

ok

How get emerald dropped motion?

you dont need get motion but set motion to item

But... how? I rewrote Player.php:

$emerald->setMotion(//now what?);

Take a look at how Player.php handles snowballs projection. https://github.com/PocketMine/PocketMine-MP/blob/master/src/pocketmine/Player.php#L2009-2043

I looked there, but I don't think simply replacing "Item::SNOWBALL" with "item::EMERALD" should work.

do not rewrite player.php only write it into your plugin and it wont work