Start a thread to listen for console input

- Listen for 'commands' on stdin
    the thread is running alongside
    the simulation.

src/InputListener.java

@@ -0,0 +1,35 @@
+import java.util.Scanner;
+
+public class InputListener implements Runnable {
+
+    private volatile String input = "";
+    private volatile boolean hasNew;
+    private final Scanner in;
+    private boolean stop;
+
+    public InputListener() {
+        in = new Scanner(System.in);
+    }
+
+    @Override
+    public void run() {
+        while(!stop) {
+            input = in.next();
+            hasNew = true;
+        }
+        System.out.println("Stopped input listener");
+    }
+
+    public void stop() {
+        stop = true;
+    }
+
+    public String getInput() {
+        hasNew = false;
+        return input;
+    }
+
+    public boolean hasNew() {
+        return hasNew;
+    }
+}

src/MakkahCity.java

@@ -20,8 +20,12 @@ public class MakkahCity {
 
 	private static PDate currenttimeManager = firstDayTimeMan;
 
+	private static final InputListener inputListener = new InputListener();
+	private static final Thread t = new Thread(inputListener,"InputThread-Makkah");
+
 	public static void main(String[] args) {
 
+		t.start();
 		//Gen Camp
 		campPerDistrict[District.ALMANSOOR.ordinal()] = new ArrayList<>();
 		campPerDistrict[District.ALAZIZIYA.ordinal()] = new ArrayList<>();
@@ -42,6 +46,7 @@ public class MakkahCity {
 		setRoutesForCampaigns(Mashier.ARAFAT);
 		System.out.println(preSimulationReport());
 		while(!firstDayTimeMan.isEnded()) {
+			checkInput();
 			//Start of Every hour
 			if (firstDayTimeMan.getCurrentCalendar().get(Calendar.MINUTE) == 0){
 				System.out.println("\n\n" + getStreetsReport());
@@ -98,6 +103,7 @@ public class MakkahCity {
 		}
 		System.out.println("***************STARTING LAST DAY***************");
 		while(!lastDayTimeMan.isEnded()) {
+			checkInput();
 			//Start of Every hour
 			if (lastDayTimeMan.getCurrentCalendar().get(Calendar.MINUTE) == 0){
 				//TODO: removed break here. now should schedule.
@@ -146,9 +152,30 @@ public class MakkahCity {
 			lastDayTimeMan.step(Calendar.MINUTE, 1);
 			//for (int i = 0; i < 46; i++) System.out.print("\b");
 		}
+		inputListener.stop();
 		//TODO: print final report 
 	}
 
+	private static void checkInput() {
+		String input = "";
+		if (inputListener.hasNew()){
+			input = inputListener.getInput();
+			if (input.equals("p")){
+				System.out.println("PAUSED");
+				try {
+					Thread.sleep(10000);
+				} catch (InterruptedException e) {
+					e.printStackTrace();
+				}
+			}
+			else if (input.equals("s")) {
+				inputListener.stop();
+				t.interrupt();
+				System.exit(0);
+			}
+		}
+	}
+
 	private static void clearDoneCivilVehicles() {
 		//Clear civil cars from list
 		for (int i = 0; i < listOfVehicles.size();){