if self.keyMap["mouse1"]:
            if not self.shooting:
                self.shooting_timer += minimum_power
            self.shooting = True
            self.shooting_timer += dt * power_rate
            my_trans = self.mouseNode.get_net_transform()
            my_quat = my_trans.get_quat()
            if self.shooting_timer > max_power:
                self.shooting_timer = max_power
            self.cforce = my_quat.getForward() / dt * self.shooting_timer

        if self.shooting and not self.keyMap["mouse1"]:
            self.ball_node.setActive(True)
            if self.hold_ball:
                self.ball_node.apply_central_force(self.cforce)
            self.shooting = False
            self.shooting_timer = 0
            self.safe_holding = False
            self.hold_ball = False