package MinePumpSystem;

public class Environment {

	public enum WaterLevelEnum {
		low, normal, high
	}

	private WaterLevelEnum waterLevel = WaterLevelEnum.normal;

	private boolean methaneLevelCritical = false;

	void lowerWaterLevel() {
		switch (waterLevel) {
		case high:
			waterLevel = WaterLevelEnum.normal;
			break;
		case normal:
			waterLevel = WaterLevelEnum.low;
			break;
		}
	}

	public void waterRise() {
		switch (waterLevel) {
		case low:
			waterLevel = WaterLevelEnum.normal;
			break;
		case normal:
			waterLevel = WaterLevelEnum.high;
			break;
		}
	}

	public void changeMethaneLevel() {
		methaneLevelCritical = !methaneLevelCritical;
	}

	boolean isMethaneLevelCritical() {
		return methaneLevelCritical;
	}

	@Override
	public String toString() {
		return "Env(Water:" + waterLevel + ",Meth:" + (methaneLevelCritical?"CRIT":"OK") + ")";
	}
	
	private WaterLevelEnum getWaterLevel() {
		return waterLevel;
	}
}
