Solved Change direction : Entity/Projectile - Fishing Hook

Hello,

I've found something new for me today, playing with Vector (not yet my BFF).
I'm trying to change where the projectile will be 'send', code is as follow :

PHP:

    public function onClickAir(Player $player, Vector3 $directionVector): bool{
            $session = Fishing::getInstance()->getSessionById($player->getId());
            if($session instanceof Session){
                if(!$session->fishing){
                  
                    $nbt = Entity::createBaseNBT($player->add(0, $player->getEyeHeight(), 0), $directionVector, $player->yaw, $player->pitch);

                    /** @var FishingHook $projectile */
                    $projectile = Entity::createEntity($this->getProjectileEntityType(), $player->getLevel(), $nbt, $player);
                    if($projectile !== null){
                        $projectile->setMotion($projectile->getMotion()->multiply($this->getThrowForce()));
                    }

I've try to do that (Don't know what i was doing here, but no change) :
[Idea is it to add 30°/-30°, like when i try to fish ...]

PHP:

                        $randomRotation = floor(rand()/getrandmax()*30-30) ;
                        $randomRotationRadian = $randomRotation * (M_PI/180);
                        $cos = cos($randomRotationRadian);
                        $sin = sin($randomRotationRadian);
                        $newX = (10000*($directionVector->x * $cos - $directionVector->z * $sin))/10000;
                        $newZ = (10000*($directionVector->x * $sin + $directionVector->z * $cos))/10000;
                        var_dump($newX);
                        var_dump($newZ);
                        $directionVector->add($newX, 0, $newZ);

Thanks

 

Hook player?

 

I've been able to found a solution :

PHP:

                        $projectile->setMotion($projectile->getMotion()->multiply($throwForce));

                        $degreeToRand = 30/(FishingLevel::getFishingLevel($player) == 0 ? 1 : FishingLevel::getFishingLevel($player));
                        $randomRotation = floor(rand()/getrandmax()*($degreeToRand*2)-$degreeToRand) ;
                        $randomRotationRadian = $randomRotation * (M_PI/180);
                        $hookMotion = $projectile->getMotion();
                        $theta = deg2rad($randomRotation);
                        $cos = cos($theta);
                        $sin = sin($theta);
                        $px = $hookMotion->x * $cos - $hookMotion->z * $sin;
                        $pz = $hookMotion->x * $sin + $hookMotion->z * $cos;
                        $projectile->setMotion(new Vector3($px, $hookMotion->y, $pz));

Seems to be OK.
I think my mistake was trying to add instead of set it
It's easier to work on it and understand after creation, using the motion.