Fix some bugs

core/src/com/mygdx/game/Game.java

@@ -42,7 +42,7 @@ public class Game extends ApplicationAdapter {
     public void render() {
         // Controls
         if (Gdx.input.isKeyJustPressed(Input.Keys.SPACE)) {
-            world.newGen(false);
+            world.launchNewGen();
         }
         if (Gdx.input.isKeyPressed(Input.Keys.RIGHT)) {
             renderer.translate(-cameraSpeed, 0, 0);

core/src/logic/Creature.java

@@ -12,15 +12,16 @@ import logic.neural.Brain;
  *
  * @author fazo
  */
-public class Creature extends Element {
+public class Creature extends Element implements Runnable {
 
     public static final int default_radius = 20, maxHp = 100;
     public static final float max_speed = 3, max_beak = default_radius / 4;
 
     private Brain brain;
     private float dir, hp, prevHp, speed, sightRange, fov, fitness, rotSpeed, beak;
-    private boolean eating = false, killing = false;
+    private boolean eating = false, killing = false, workerDone = false;
     private Sight[] sights;
+    private Thread workerThread;
 
     public Creature(float x, float y) {
         super(x, y, default_radius);
@@ -32,10 +33,25 @@ public class Creature extends Element {
         sightRange = 100;
         fov = (float) Math.PI / 2.5f;
         fitness = 0;
-        brain = new Brain(10, 5, 2, 10);
+        brain = new Brain(9, 5, 2, 10);
         sights = new Sight[2];
     }
 
+    @Override
+    public void run() {
+        for (;;) {
+            if (workerDone) {
+                try {
+                    Thread.sleep(1000);
+                } catch (InterruptedException ex) {
+                }
+            } else {
+                update();
+                workerDone = true;
+            }
+        }
+    }
+
     @Override
     public void update() {
         // apply hunger
@@ -94,7 +110,7 @@ public class Creature extends Element {
         // 8: sight(c): hunger
         // 7: sight(c): beak
         // OTHER:
-        // 9: food sensor
+        // 8: food sensor
         int viewSensors = 4;
         for (int i = 0; i < sights.length; i++) {
             int mul = i * viewSensors;
@@ -118,7 +134,8 @@ public class Creature extends Element {
                 }
             }
         }
-        values[9] = eating ? 1 : 0;
+        values[8] = eating || killing ? 1 : 0;
+        System.out.println(values[8]);
         // compute behavior
         float[] actions = null;
         try {
@@ -194,7 +211,6 @@ public class Creature extends Element {
         // Try to see plant
         Element seen = null;
         float dist = 0, angle = 0, ndir = dir - (float) Math.PI;
-        killing = false;
         eating = false;
         for (Element e : Game.get().getWorld().getPlants()) {
             float tempDist = distanceFrom(e);
@@ -237,7 +253,6 @@ public class Creature extends Element {
         angle = 0;
         ndir = dir - (float) Math.PI;
         killing = false;
-        eating = false;
         for (Element e : Game.get().getWorld().getCreatures()) {
             if (e == this) {
                 continue;
@@ -295,6 +310,26 @@ public class Creature extends Element {
         }
     }
 
+    /**
+     * Check if the Worker thread has finished its current iteration
+     *
+     * @return true if worker thread has finished its current iteration
+     */
+    public boolean isWorkerDone() {
+        return workerDone;
+    }
+
+    /**
+     * Command the Worker thread to start another iteration.
+     */
+    public void startWorker() {
+        workerDone = false;
+        if (workerThread == null) {
+            workerThread = new Thread(this);
+            workerThread.start();
+        }
+    }
+
     public Brain getBrain() {
         return brain;
     }

core/src/logic/World.java

@@ -23,6 +23,7 @@ public class World implements Runnable {
 
     private final int width, height, nPlants, creatPerGen;
     private int generation = 1;
+    private boolean multithreading = false, cmdLaunchNewGen = false;
     private int fpsLimit = 60, fps = 0;
     private Creature selected;
     private final ArrayList<Element> elements;
@@ -108,6 +109,10 @@ public class World implements Runnable {
         if (creatures.removeAll(graveyard)) {
             fire(Listener.CREATURE_LIST_CHANGED);
         }
+        if (cmdLaunchNewGen) {
+            newGen(false);
+            cmdLaunchNewGen = false;
+        }
         if (creatures.isEmpty()) {
             // All dead, next gen
             newGen(false);
@@ -120,7 +125,7 @@ public class World implements Runnable {
         }
     }
 
-    public void newGen(boolean restart) {
+    private void newGen(boolean restart) {
         elements.removeAll(creatures);
         graveyard.addAll(creatures);
         creatures.clear();
@@ -233,7 +238,7 @@ public class World implements Runnable {
         }
     }
 
-    public void fire(int eventCode) {
+    private void fire(int eventCode) {
         for (Listener f : listeners) {
             f.on(eventCode);
         }
@@ -311,4 +316,15 @@ public class World implements Runnable {
         this.selected = selected;
     }
 
+    public boolean isMultithreading() {
+        return multithreading;
+    }
+
+    public void setMultithreading(boolean multithreading) {
+        this.multithreading = multithreading;
+    }
+
+    public void launchNewGen() {
+        cmdLaunchNewGen = true;
+    }
 }

desktop/src/gui/GUI.java

@@ -11,10 +11,7 @@ import com.mygdx.game.Game;
 import com.mygdx.game.Listener;
 import com.mygdx.game.Log;
 import com.mygdx.game.Log.LogListener;
-import java.util.logging.Level;
-import java.util.logging.Logger;
 import javax.swing.JOptionPane;
-import logic.World;
 
 /**
  *