added simple pause feature

Author: cvium

.idea/workspace.xml

@@ -0,0 +1,32 @@
+package kds;
+
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
+
+/**
+ * Created by cvium on 04-01-2016.
+ */
+public class PauseListener implements KeyListener {
+
+    Simulator s;
+
+    public PauseListener(Simulator s) {
+        this.s = s;
+    }
+    @Override
+    public void keyTyped(KeyEvent e) {
+
+    }
+
+    @Override
+    public void keyPressed(KeyEvent e) {
+        if (e.getKeyCode() == KeyEvent.VK_P) {
+            s.pause();
+        }
+    }
+
+    @Override
+    public void keyReleased(KeyEvent e) {
+
+    }
+}

src/main/java/kds/PauseListener.java

@@ -2,6 +2,8 @@
 
 import ProGAL.geom2d.viewer.J2DScene;
 
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
 import java.io.Console;
 import java.io.IOException;
 import java.util.ArrayList;
@@ -25,6 +27,7 @@ public class Simulator<PointType extends KDSPoint, EventType extends Event<Point
     double endtime;
     Level loggerLevel;
     J2DScene scene;
+    boolean paused;
 
     public Level getLoggerLevel() {
         return loggerLevel;
@@ -44,6 +47,7 @@ public Simulator(KDS<PointType, EventType> kds, double starttime, double timeste
         LOGGER.setLevel(this.loggerLevel);
         Logger topLogger = java.util.logging.Logger.getLogger("");
         topLogger.getHandlers()[0].setLevel( this.loggerLevel );
+        paused = false;
     }
 
     public double getTimestep() {
@@ -64,8 +68,11 @@ public void setVisualization(boolean visualize) {
     }
     public int run(boolean visualize) throws IOException {
         LOGGER.log(Level.INFO, "Starting simulation");
-
-        if (visualize) scene = J2DScene.createJ2DSceneInFrame();
+        PauseListener pl = new PauseListener(this);
+        if (visualize) {
+            scene = J2DScene.createJ2DSceneInFrame();
+            scene.addKeyListener(pl);
+        }
         /*
         Color[] c = {Color.BLUE, Color.RED, Color.BLACK, Color.MAGENTA, Color.GREEN, Color.CYAN, Color.GRAY,
                 Color.ORANGE, Color.PINK, Color.YELLOW};
@@ -88,6 +95,7 @@ public int run(boolean visualize) throws IOException {
         int errors = 0;
         while (t <= endtime) {
             LOGGER.log(Level.FINER, "Time: {0}", t);
+            if (paused) continue;
             ArrayList<EventType> es;
             try {
                 while (kds.getEventQueue().firstKey() <= t) {
@@ -124,4 +132,8 @@ public int run(boolean visualize) throws IOException {
         //System.exit(0);
         return errors;
     }
+
+    public void pause() {
+        paused = !paused;
+    }
 }

src/main/java/kds/Simulator.java

@@ -12,17 +12,17 @@ class run {
 
     public static void main(String[] args) throws Exception {
         final int N = 50;
-        final int M = 3;
+        final int M = 2;
         final int T = 10;
-        final int NUMRUNS = 100;
+        final int NUMRUNS = 1;
         final double STARTTIME = 0.1;
         final double TIMESTEP = 0.1;
         final Level loggerLevel = Level.SEVERE;
         int failedRuns = 0;
         for (int i = 0; i < NUMRUNS; ++i) {
             SortedList kds = new SortedList(STARTTIME, N, M);
             Simulator<KDSPoint, SortedEvent> sim = new Simulator<>(kds, STARTTIME, TIMESTEP, T, loggerLevel);
-            if (sim.run(false) != 0) {
+            if (sim.run(true) != 0) {
                 ++failedRuns;
             }
         }