Knockback a player in opposite direction to a block

Hey there,
i'm developing a plugin in which you should be knockbacked after passing a square of blocks.
You should be knockbacked in opposite direction to the block, but all my code does, is knocking back a player to one corner of the square (the block you should be knockbacked opposite to is inside this square).

Code:

//multiplication factor
double mult = -1.0;
                   
//get block z
                    int z1 = this.getConfig().getInt("middlez");
//get player z
                    int z2 = (int) e.getPlayer().getLocation().getZ();
//get block x
                    int x1 = this.getConfig().getInt("middlex");
//get player x
                    int x2 = (int) e.getPlayer().getLocation().getX();
//get z distance
                    int n1 = z1 - z2;
//get x distance
                    int n2 = x1 - x2;
                   
//get player direction
                    Vector v = e.getPlayer().getLocation().getDirection();
                    v.setY(0);
                   
//get direction to knockback to
                    if (n1 < 0) {
                        v.setZ(-1);
                    } else if (n1 >= 0) {
                        v.setZ(1);
                    }
                    if (n2 < 0) {
                        v.setX(-1);
                    } else if (n2 >= 0) {
                        v.setX(1);
                    }
                   
//apply knockback by changing velocity
                   
                    e.getPlayer().setVelocity(v.multiply(mult));

(In this code i already have checked if the user passed the outer line of the square, its inside onPlayerMove)

Thanks, Victini151
(Sorry for my bad english, i'm german :/)

 

Here is what I used in my plugin. It pushes back entities from the player. Just replace the players location with blocks location.

Code:

/**
* Pushes away an entity from the player
*
* @param entity entity
* @param speed speed
*/
public void pushAwayEntity(Entity entity, double speed) {
// Ignore if the player isn't online:
if(!isOnline()){
return;
}
// Get velocity unit vector:
Vector unitVector = entity.getLocation().toVector().subtract(player.getLocation().toVector()).normalize();
// Set speed and push entity:
entity.setVelocity(unitVector.multiply(speed));
}