void MovePlayer()
{
if (isGrounded)
{
rb.AddForce(moveDirection.normalized * moveSpeed * movementMultiplier, ForceMode.Acceleration);
}
else if (!isGrounded)
{
rb.AddForce(moveDirection.normalized * moveSpeed * movementMultiplier * airMultiplier, ForceMode.Acceleration);
}
else if (isCrouching)
{
rb.AddForce(moveDirection.normalized * moveSpeed * crouchMultiplier, ForceMode.Acceleration);
}
}