Vector2 WaveGen::RandomiseSafePosition(Vector2 target_, float safetyDistance_)
{

    //randomise a position
    int xPos = rand() % 100;
    int yPos = rand() % 100;
    Vector2 pos = Vector2(xPos,yPos);

    //check pos against the target_ pos
    float distance = (target_ - pos).GetMagnitude();
    if ( distance < safetyDistance_ )
        return RandomiseSafePosition(target_, safetyDistance_); //try again

    return pos;
}