oop-labs-collection/labs/6/Main.java

import java.util.concurrent.TimeUnit;

public class Main {
    public static void main(String[] args) {
        Vent vent = new Vent(true);

        Appliance[] devices = {
            new ServerRack(false),
            new ServerRack(false),
            new RPI(false),
            new Dishwasher(false)
        };

        devices[0].plug();
        devices[2].plug();
        
        int i = 0;
        float ventConsumed = 0f;
        float totalPowerConsumed = 0f;
        //for (int i = 0; i < 180*10; i++) {
        while (true) {
            step(vent, devices, 0.1f);
            ventConsumed += vent.getPowerConsumption() * 0.1;
            totalPowerConsumed += getTotalPowerConsumption(vent, devices) * 0.1 / 3600;
            //System.out.print(String.format("Time: %02.1f; ", (float) i/10)
            System.out.print("Time: " + floatFormat((float)i/10, 2, 1) + "; "
                             + getStats(vent, devices) + "; vent avg = "
                             + floatFormat(ventConsumed*10/i, 3, 1)
                             + "W; total = "
                             + floatFormat(totalPowerConsumed, 3, 3) + "W\r");
            if (devices[0].getPowerConsumption() > 205) {
                vent.plug();
            }

            if (devices[0].getPowerConsumption() < 190) {
                vent.unplug();
            }

            if (i == 150) {
                devices[1].plug();
            } else if (i == 300) {
                devices[0].unplug();
            } else if (i == 400) {
                devices[3].plug();
            } else if (i == 700) {
                devices[0].plug();
            }

            try {
                //TimeUnit.SECONDS.sleep(1);
                Thread.sleep(2);
            } catch (Exception e) {
                System.exit(0);
            }

            i++;
        }

    }

    public static void step(Vent vent, Appliance[] devices, float seconds) {
        vent.step(seconds);
        for (Appliance i : devices) {
            i.step(seconds, vent.getRPM());
        }
    }

    public static String getStats(Vent vent, Appliance[] devices) {
        float[] powerConsumption = new float[devices.length];
        float totalPowerConsumption = 0;

        for (int i = 0; i < devices.length; i++) {
            powerConsumption[i] = devices[i].getPowerConsumption();
            totalPowerConsumption += devices[i].getPowerConsumption();
        }

        String result = "PPD: ";

        for (float i : powerConsumption) {
            //result += String.format("%03.1fW ", i);
            result += String.format(floatFormat(i, 3, 1) + "W ");

        }

        float powerLinesDraw = totalPowerConsumption
                + vent.getPowerConsumption();

        //result += String.format("; Vent: %03.1fW, %05.0f RPM; Total power: %04.1fW",
        result += "; Vent: " + floatFormat(vent.getPowerConsumption(), 3, 1)
                + "W, " + floatFormat(vent.getRPM(), 5, 0)
                + " RPM; Total power: " + floatFormat(powerLinesDraw, 4, 1)
                + "W";
                                //vent.getPowerConsumption(), vent.getRPM(),
                                //totalPowerConsumption + vent.getPowerConsumption());

        return result;
    }

    public static float getTotalPowerConsumption(Vent vent,
            Appliance[] devices) {
        float result = vent.getPowerConsumption();

        for (Appliance a : devices) {
            result += a.getPowerConsumption();
        }

        return result;
    }

    public static String floatFormat(float num, int leading, int trailing) {
        String newNum = String.format("%0" + leading + "." + trailing + "f", num);

        int targetLength = leading + trailing + 1;

        for (int i = newNum.length(); i < targetLength; i++) {
            newNum = "0" + newNum;
        }

        return newNum;
    }
}