def _directivity(self, theta, phi):
        return cardioid(theta)
Do not allow player to sell anything
dataset/ETHPy150Open python-acoustics/python-acoustics/acoustics/directivity.py/Cardioid._directivity--crossover with--dataset/ETHPy150Open justinmeister/The-Stolen-Crown-RPG/data/shopgui.py/Gui.cant_sell