fixes a HealthBar nit. colliding now also reflects 0 health
fixes a HealthBar nit. colliding now also reflects 0 health

ruslan120101/TankAttack-JavaFX,ruslan120101/TankAttack-JavaFX,ruslan120101/JavaFX-TankAttack,ruslan120101/TankAttack-JavaFX,ruslan120101/JavaFX-TankAttack,ruslan120101/JavaFX-TankAttack