[Tutorial]2024.4 Riding Position

You can add the code to the last line of the entity code and modify the value.

@Override
protected void positionRider(Entity passenger, MoveFunction moveFunction) {
if (this.hasPassenger(passenger)) {
double offsetX = this.getX(); 
double offsetY = this.getY() + 1.0D; //Riding height Position
double offsetZ = this.getZ();
double offsetForward = -1.5D; //Front, back Position
double offsetSide = 0.0D; //Side Position

offsetX += -Math.sin(Math.toRadians(this.getYRot())) * offsetForward 
+ Math.cos(Math.toRadians(this.getYRot())) * offsetSide;
offsetZ += Math.cos(Math.toRadians(this.getYRot())) * offsetForward 
+ Math.sin(Math.toRadians(this.getYRot())) * offsetSide;

passenger.setPos(offsetX, offsetY, offsetZ);
}
}

}